I { • . i ;1 \ £ f 1 L \ 1 't ' 4 u.-/4 ;3 6'J" TRANSACTIONS OF THE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS VOL. XVII, PART II TABLE OP CONTENTS Z,3ll1 MADISON, WISCONSIN I9I4 TABLE OF CONTENTS OF VOLUME XVII, PART II Page On the Anatomy of the Dragonfly. Libellula Quadrimaculata, Linne. William S. Marshall. With Plates LXVIII-LXXI ... 755 On the Habits of the Uca Pugnax (Smith) and U. Pugilator (Bose). A. S. Pearse. With seven figures . . 791 A New Species of Diaptomus. Chancey Juday. With two figures 803 A List of Fungi from Kewaunee County, Wisconsin. Bernard O. Dodge . . . . . . . . 806 A Provisional List of Parasitic Fungi of Wisconsin — J. J. Davis. . 846 Preliminary Report on a Collection of Hepaticae from the Duluth- Superior District — George H. Conklin . . . 985 Species of Pholiota and Stropharia in the Region of the Great Lakes— Edward T. Plarper. With Plates LIX-LXVII . 1011 Wisconsin Discomycetes — B. O. Dodge . . . 1027 Social Conditions in Southern Bavaria in the Thirteenth Century, as shown in Meier Helmbrecht — Martin H. Haertel . 1057 Development of the Vowel of the Unaccented Syllable in Italian — Edward B. Schlatter . . . 1073 Species of Hypholoma in the Region of the Great Lakes — Edward T. Harper. With Plates LXXXI-LXXXIV . . . . 1142 The Organization of the Colony in Certain Four-celled Coenobic Algae — Gilbert Morgan Smith. With seven figures and Plates LXXXV-XCI . . . . . . . 1165 The Myxomycetes of Wisconsin — Alletta F. Dean .'. . . . 1221 Some New American Water Mites — Ruth F. Marshall. With Plates XCII-XCXIX . . . . . . 1300 The Bacteriological Control of Milk Supplies — William D. Frost. With seven figures and Plates XCIV-XCV . . . . 1305 List of Members, Corrected to March 1, 1914. Proceedings of the Academy, Charter, etc. . . . . 1366 \; I / TRANSACTIONS x OF THJE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS VOL. XVII, PART II, NO. i MADISON, WISCONSIN 1914 CONTENTS Page On the Anatomy of the Dragonfly (With Plates LXVIXI- LXXI) . . . William 8. Marshall, 755 On the Habits of the Uca Pugna (Smith) and U. Pugilator (Bose) (With seven figures) . A. S, Pearse, 791 A New Species of Diaptomus (With two figures) . Chancey Judm), 803 A List of Fungi of Kewaunee County, Wisconsin Bernard G. Dodge, 806 The annual half-volume of the Transactions of the Wisconsin Academy of Sciences, Arts, and Letters is issued in six numbers, .< under the editorial supervision of the Secretary. The price of this number is 25c. Marshall — On the Anatomy of the Dragonfly. 755 ON THE ANATOMY OF THE DRAGONFLY. LIBELLULA QUADRIMACULATA, LINNE. Wm. S. Marshall. From time to time the Odonata have been the subject of special morphological, anatomical and embryological papers ; some of these have dealt with the insect during its nymph al life, others have been restricted to the imago. Among the earlier entomologists there have been several, Dufour (8), Burmeister (4), Bamdohr (20), Bathke (21) whose work has been of a general nature- — later the work has been more along the line of investigating some special problem or working on a single organ. The following paper does not include all the organs; or parts of the body of LiBdlula quadrimaculata ; some of these have been investigated both anatomically and histologically and the results, while not giving as much of interest as anticipated, are presented as the result of the work, however incomplete. Head. The vertex (fig. 1, Vt.), frontal vesicle, is, as seen anterior¬ ly (2mm x 1. 5mm), very prominent; it appears as a small conical cap placed on the head between the antennae. Viewed from above the vertex is seen to be a little broader than long, it has an oval base, each end of which is drawn out to a blunt point; at each of these ends is situated a lateral ocellus. The curve of the base, anterior, passes to the median ocellus ; posteriorly the margin runs nearly parallel to the compound eyes. The anterior surface of the vertex is slightly concave. 756 'Wisconsin Academy of Sciences , Arts , and Letters. Scattered over its surface are a number of slightly curved setae. The frons (fig, 1, Fr.), 1. 5mm in length and 4. 5mm at its greatest width, occupies ai large, somewhat rectangular region, extending across the front of the head. ; at either side are the eyes above is the vertex and below it the clypeus. The two upper corners are rounded, the lower ones acutely angled with rounded apex. Dorsally there is a deep median depres¬ sion, in the center of this is a narrow longitudinal stripe of a lighter color which divides the entire frons into right and left halves. This dorsal depression gives to the frons, at either side, an inflated appearance. Slightly curved setae are also scattered over this region. The clypeus (fig. 1, Cly.) is very distinctly divided into anterior and posterior parts; the combined length (height) is 1. 5mm, the width of the posterior part is 4.5mm, of the an¬ terior portion 3.75mm. Except in the median region there is a distinct boundary between the two parts. Each part is di¬ vided into a median and a lateral portion, the division being most plainly seen in the posterior region where the lateral lobes extend to the margin of the eyes. Setae, similar to those on the other parts, are also found on the clypeus. The occiput (fig. 4, Op.) has both a dorsal and a posterior surface; these are not separated in any way from each other but are formed by the bending of the occiput at the posterior margin of the head : there is thus exposed a nearly equal sur¬ face from each of the two views. From a dorsal view the oc¬ ciput has a triangular outline ; the base is posterior and rounded, the apex is anterior, and, wedging in between the eyes, makes the sides of the triangle slightly concave. Posteriorly the occiput shows a surface about equal in area to that seen from above; it is also in this view somewhat triangular in outline, all but the dorsal surface is convex, the base more so than the sides. The narrow space which marks the median boundary of the eyes connects the apex of the occiput with the posterior margin of the vertex. The setae borne on the occiput are not so stiff as those on the other parts already mentioned. Marshall— On the Anatomy of the Dragonfly . 757 The genae (fig. 1, G), including that part of the epicranium in front of the eyes, are small and barely seen from an an¬ terior view. Each is but a small piece at either side of the clypeus and is in part hidden by the posterior clypeus and the mouth parts. The epicranium, besides the parts already described, ex¬ tends back of the eyes and over the posterior surface of the head. The largest part of the surface at the back of the head is covered with dark brown chitin; this area lies between the occiput above and the occipital foramen below and is divided into right and left parts which are connected by a wide bridge. In a lateral view of the head a small piece of this part of the epicranium is seen to lie along the posterior margin of each eye (fig. 2, Ep.). Just where, at each side, this piece turns inward to cover the posterior surface of the head there is, extending from dorsal to ventral margin, a band of setae (seen in fig. 2) ; these, for about one quarter of the distance from the dorsal boundary, are longer than at any other place. A lateral view of the head shows two light areas (drawn with¬ out stippling in figure 2), one near the middle, the other ven¬ tral. The gula (fig. 3, Gu.) consists of two portions; the basal piece 2mm wide, 1.25mm high, is somewhat rectangular in shape; from the upper corners of this piece arise two slight¬ ly curved arms which extend up to the occipital foramen. ‘ The labrum (fig. T, Lb.) is 2.75mm x 1.20mm; it is slight¬ ly convex on the outer and concave on the inner surface, the greatest convexity is medium near the upper margin. On the outer surface, along the free margin, runs a strip, darker in color than the rest and having the cuticula thicker. At the upper corners this strip turns inward and extends nearly half¬ way to the median part of the labrum (this part is stippled in fig. 1, Lb.). Along and near the free margin are a number of setae; all of these are slightly curved and, in most of them, the concavity faces the median axis of the labrum. Along the upper surface are other curved setae, these are not so long as the marginal ones. The labrum moves very freely on the 758 Wisconsin Academy of Sciences , Arts, and Letters. lower edge of the clypeus, there being at this place two hinges formed in. part by the kbrum and in part by the clypeus. Along that edge of the clypeus which is opposed to the labrum are two heavy, curved rods (shown between labrum and cly¬ peus in fig. 1) and, not far from the anterior end of each of these, there is a heavy blunt projection (fig. 5, t). Just opposite this projection there is on the edge of the labrum a depression, the wall of which is strengthened by a thickening of chitin along the upper surface (fig. 5, r). The elevation or raising of the labrum is due to two slender pairs of muscles which can easily be seen by cutting away the central part of the frons and clypeus; this exposes a larger frontal and a smaller clypeal cavity. Such a preparation (fig. 6), shows the frontal cavity to have a chitinous rool which is prolonged into two processes, the prefrontal-anten¬ nal apodemes of Berlese (1), from the ends of which the two pairs of muscles arise. The larger, median, pair of these muscles converge in their course towards the base of the lab¬ rum, finally coming together to be inserted on a small median chitinous plate at the upper margin of the labrum (fig. 1, median, between clypeus and labrum). From the same apo¬ demes arise another pair of muscles, thinner and more lateral¬ ly situated than the first pair; they diverge slightly and, be¬ fore their insertion, become narrow tendons. (Before they reach the labrum both pairs of muscles pass back of a slightly curved chitionous prop (figs. 4 and 6, Ap. 2), the clypeo-pre- frontal apodeme of Berlese. This is the enlarged inner mar¬ gin of a thin plate which separates the frontal from the clypeal cavity (fig. 4). These two pairs of muscles are called by Berlese “M. adductore primo et secondo del labbro su- periore”. The median pair from their insertion on a plate which is part of the external wall of the labrum, would raise it. The lateral muscles do not, from their insertion, show so clearly just what their use is; the tendons in which they end run for a short distance along the wall of the buccal cavity and are finally inserted so near the outer ends of this upper margin of the labrum that it is hard to distinguish the Marshall — On the Anatomy of the Dragonfly. 759 difference between the two walls, external and internal, at their point of insertion. They probably help to elevate the upper lip. ; ; Buccal cavity. A view of the inner surface of the labruni show's, along and near its free outer margin, a number of long, slightly curved setae. Around the entire free margin there is a wide band, darker than the rest of the surface but which shows in section, no perceptible difference in the thickness of the cuticula. In the central region, wFere the sense pits are situated, the chitin is both darker and thicker ; where the epipharyngeal muscle is attached it is darker but not thicker^ There are also on the inner surface four groups of setae ; two5 of theses are more centrally located, the other two groups are near the lateral margins (fig. 7). The setae comprising the more centrally located groups are longer than the others. In the central region there are a number of sensory plates; these are small, dark areas of the cuticula, of varying size and per¬ forated with small circular openings. The number of openings in each plate varies from one to thirteen; the greater number of openings in the larger plates give to them a sive-like appear¬ ance. Hear the center of the roof of the mouth, close to the upper, attached margin of the labrum, are two heavy, dark projec¬ tions of the chitin; these are covered with many stiff setae which gives to them a brush-like appearance (figs. 7, c and 8,c). From near the base of each brush there is a stiff, slightly curved chitinous rod which forms in part the inner margin of the labrum. These rods act as supports for the labrum and, near their outer ends, are found the hinges upon which it ar¬ ticulates. A little to the side from the apex of each brush there is a group of sensory pits. The layer of hypodermis which lies next to the cuticula shows but a slight variation in thickness; in the more central part the cells contain a great many black pigment granules. The hypopharynx is very large and leaves but little space underneath between it and the labium. Along its margin there are many setae, these are longer on the lower than on the 760 Wisconsin Academy of Sciences , Arts , and Letters. lateral margins. Over the upper surface are a number of slightly curved setae which exceed in length those on cor¬ responding parts of the epipharynx. The entire basal part of the hypopharynx is borne on a chitinous prop which arches up over the reservoirs of the salivary glands. At the inner margin of the hypopharynx, just at the opening into the pha¬ rynx, there is a transverse plate of thickened chitin (fig. 7, Ph. pi.) which, in a sagittal section shows as a tooth (fig. 8, Ph. pi.) ; this is used to hold open the entrance into the aliment¬ ary canal, there being at this region a dorso-ventral compres¬ sion. Directly in front of this opening the cuticular layer is, on both roof and floor, slightly thicker than over the rest of the surface ; the cuticula here is transparent and slightly rugose. Excepting those parts mentioned the cuticular lining of the mouth shows but slight variations in thickness although over the floor it is a little thinner than on the roof. Alimenteky Caxal. General (fig. 9). At its commencement the oesophagus is a narrow tube which changes but little in diameter through the head and cervical region. It at first passes upwards and forwards (the latter direction is but slight and assumes the head to be in a deflexed position), the slight forward direc¬ tion soon changes and the oesophagus gradually turns back¬ ward to pass under the supra-oesophageal ganglion. Just be¬ fore passing out of the head through the occipital foramen it assumes a position which is parallel to the longitudinal axis of the insect’s body; this position relative to the body it re¬ tains to the anal opening. The anterior portion of the oeso¬ phagus is the thinnest part of the alimentary canal. Just after leaving the cervical region the oesophagus commences to increase in diameter, this increase continues through the pro¬ thorax and becomes greater at the anterior end of the meso- thorax. At the beginning of the mesothorax this increase in diameter appears, from a dorsal view, to be very gradual; from a lateral view the change is seen to be an abrupt one. In Marshall — On the Anatomy of the Dragonfly. 761 this region the dorsal wall of the oesophagus remains nearly level, the ventral wall however falls suddenly away from the dorsal causing the abrupt enlargement. The crop, beginning in the middle of the metathorax, ex¬ tends through the first, second and the anterior half of the third abdominal segments; at its posterior end it decreases slightly in diameter. The thickest part of the crop is in the first and second abdominal segments and exceeds in diameter any other portion of the alimentary canal. At its posterior end the fore-intestine decreases in diameter and, when seen externally, passes over into the mid-intestine as the end of one tube pushed into another and slightly larger one. The boundaries between the different regions of the fore-intestine must be more or less assumed as there are no external markings or changes which separate one part from another. The same is true from a study of the structure of the wall. The mid-intestine starts near the middle of the third ab¬ dominal segment; its diameter does not change within the fourth and fifth segments except^ that, at the posterior end of the latter segment, there is a gradual decrease in size. In de¬ fining the position of the boundary between the fore- and mid¬ intestines one must bear in mind that the presence of the oesophageal valve which is pushed into this region of the ali¬ mentary canal, makes this boundary a little different in ex¬ ternal view to what it is really found to be in longitudinal sec¬ tion. We take here, however, the anterior end of the mid- intestine as seen in external view and find that this boundary lies within the third abdominal segment. In some specimens it is well toward the boundary between the third and second segment, in others near or at the boundary between the third and fourth. In the fourth and fifth segments and also in a small part of the third, the mid-intestine is covered with transverse folds, each fold appearing as a ridge passing around the intestine. The folds have sinuous boundaries and are fairly regular. From a surface view many of these folds can be traced from side to side across the intestine; when closely studied and any one fold is carefully followed it is found that 762 Wisconsin Academy of Sciences, Arts, and Letters. in nearly every instance each fold ends or branches before the circumference of the intestine is completed. For a distance of 1mm from its anterior end the mid-intestine is smooth; near the middle of the seventh abdominal segment the plicated ap¬ pearance ceases, leaving the posterior 2mm, with a smooth ex¬ ternal surface. The Malpighian tubules are inserted just be¬ hind the middie of the seventh segment. The posterior end of the mid-intestine is generally in the seventh segment, a few specimens were found in which it was in the extreme an¬ terior part of the eighth segment. The ileum, the first division of the hind-intestine, extends through most of the posterior half of the seventh segment, all of the eighth segment and a little into the ninth. On the poste¬ rior portion there is the appearance of longitudinal folding. In the anterior part of the ninth segment the ileum passes into the rectum, this latter section of the alimentary canal does not vary in thickness throughout its length. The alimentary tract of Libellula 4-maculata passes straight through its body excepting a small part of the head ; the length of the body in a number of speeiments will show slight varia¬ tions and a difference in the length of the intestine is also no¬ ticed. In measuring some alcoholic specimens it was found that the average length of the males was greater than the fe¬ males ; ten specimens of each sex were then measured, ex¬ clusive of the genital claspers, etc, with the result that the average length of the males was 41.65mm, of the females 39.90mm. The different divisions of the alimentary canal av¬ eraged as follows: fore-intestine, male 20.5mm, female 1 7.5mm, mid-intestine; male 12.5mm, female 14mm; hind-intestine; male 7.7mm, female 6.5mm. The males have the longer fore-and hind-intestine, the females the longer mid- intestine. The total of the parts of the alimentary tract is a little less than the length of the body. The curved portion of the oesophagus is slightly less than the distance to the front of the head and it is also impossible to accurately measure in rough dissections the length of this same curved part. Marshall — On the Anatomy of the Dragonfly. 763 Pharynx. The pharynx is somewhat flattened dorso-ven- trally. Its cuticnlar lining is thick and varies in different specimens from an entirely colorless layer to one in which the outer part is brown; in all specimens the pharyngeal plate is darkly colored. This plate (fig. 10, Ph. pi.) extends trans¬ versely across the floor of the pharynx near its posterior boun¬ dary; in a longitudinal section of the pharynx it has the ap¬ pearance of a forwardly directed tooth (figs. 8 and 11, Ph. ph). Forming the ventral wall there are besides the cuticu- lar and hypodermal layers, a few circular muscles. Dor sally the cells of the hypodermis are longer than those of the op¬ posite surface and there is, above the hypodermis, some gland¬ ular tissue; this is followed by longitudinal and oblique mus¬ cles and above these a circular layer. In the posterior part of the pharynx there are small muscles arising on its dorsal wall and passing to the clypeus. Just posterior to the pharyn¬ geal plate there is a depression in the ventral wall, a little back of this the circular muscles increase in thickness and the lumen of the alimentary canal decreases in size: at this point might be placed the boundary between the pharynx and the oesophagus. The cuticular lining of the pharynx is covered with numerous small, blunt projections. The glands lying at the roof of the pharynx (fig. I'l, Gl.) show a fairly continuous layer just above the hypodermis. In a longitudinal section through the pharynx a number of pieces of different sizes are seen ; the largest of these lie paral¬ lel to the roof of the pahrynx and are seldom more than two or three cells in thickness (fig. 12). Each gland-cell contains a rounded nucleus and often shows one or more vacuoles in the cytoplasm. Oesophagus. The oesophagus is narrower at its beginning than the pharynx; it changes but little in diameter until, at the beginning of the mesothorax, the sudden enlargement takes place which was mentioned in the general account of the ali¬ mentary tract. A study of transverse sections shows that in its most anterior part it is similar in structure to the pharynx ; the five large folds found in the latter region change to six or 764 Wisconsin Academy of Sciences , Arts, and Letters. eight, the medium dorsal fold is still larger than any of the others. Between these large folds there are still many small irregular ones. At the middle of the cervical region a change takes place ; the large median dorsal fold persists and at either side of this there are two or three narrow ones ventrally di¬ rected. On the ventral wall are a number of small folds (fig. 13). Further hack in the cervical region the folding again changes and one could not, in this region, determine in a trans¬ verse section, which part was dorsal: the median dorsal fold is still present hut no larger than the others. Throughout this and other parts of the fore-intestine the cuticular layer is covered wih small blunt processes (fig. 14) ; similar ones were noted as present in the pharynx. In the middle of the prothorax the oesophagus enlarges; the walls remain of the same thickness but, owing to the in¬ crease in diameter, the folds do not come so close together. Towards the posterior end of the prothorax the large folds dis¬ appear and their place is taken by a number of small ones. As the oesophagus enters the mesothorax there is, 4.25mm from its commencement, the sudden increase in its diameter, due to the abrupt fall in its ventral wall. At the beginning of this enlarged part the folds are smaller and most of them are restricted to the dorsal wall. At this region the wall of tthe oesophagus becomes thinner, due to a decrease in the layer of circular muscles (fig. 15) which are not so thick here as in the most anterior region. From this place to the gizzard the muscular layers are scarcely noticeable. Gizzard. If a specimen of Libellula with an empty crop be examined the plates of the gizzard can be seen through the thin wall protruding, apparently, from the anterior end of the mid-intestine forward into the crop. One is unable to notice any boundary between the crop and the gizzard. If the in¬ testine at this region be cut longitudinally into halves a view of the interior will show the true position of the plates and it will then be seen that they have no connection with the mid¬ intestine (fig. 16). Taking for the limits of the gizzard a point slightly anterior to the plates and, posteriorly, where the Marshall — On the Anatomy of the Dragonfly. 765 fore-and mid-intestines join, it can be seen that' the wall of the fore-intestine shows no external difference between the crop and the gizzard ; the presence of the plates alone indicating the latter. The thin transparent wall of both crop and gizzard has, in the latter, a thicker muscular layer; this cannot be noticed in an external view. Calvert (6) found a variation in the position of the gizzard in individuals of the same species. In Hetaerina americana the gizzard was in the fourth, fifth or sixth abdominal seg¬ ments and in Archilestes grandis it varied in position from the fourth to the sixth segment. In Lib'ellula d-maculata there is a slight variation but the gizzard is always in the second, third and fourth segments. It cannot be described as situated exclusively in the third segment as, in many examples, it ex¬ tends forward into the second or back into the fourth. If there be any sexual difference it is that in male specimens the gizzard more frequently extends forward into the second seg¬ ment while there are some females, in which it extends back into the fourth. Calvert (6) found in Hetaerina americana four folds in the gizzard, each covered with minute teeth ; there were no large teeth present and no intermediate tooth¬ bearing folds. Ris (22) mentions that in Lihellula the teeth are much reduced and, while he does not figure any species of the genus, his drawing of the gizzard of Cordula aenea is very similar to what is found in Libellula J^-maculata. In this latter dragonfly there are four large folds and along each of these there is a long, narrow, longitudinal plate (fig. 17). From a surface view these plates appear of a dark brown color and, in transverse section, it is seen that the chitin form¬ ing the plates is not only much darker but also thicker than the chitin lining any other part of the gizzard. Each plate is shaped a little like the head of a spear with the point directed backward; the anterior end does not have a distinct boundary but gradually .becomes lost in the surrounding light colored cuticula. The edges of the plates, especially the posterior half, are very irregular. The small cuticular projections present over the surface of the pharynx and oesophagus are not so 766 Wisconsin Academy of Sciences, Arts, and Letters. abundant in the gizzard although a few can he seen scattered over the entire surface. An exception to this is the posterior half of each plate and a little to each side where the projec¬ tions are very numerous and form a rectangular area (fig. 18) and the spaces between are almost free from the projections. Examining a series of transverse sections through the giz¬ zard, and restricting what we have to say to that portion bear¬ ing the plates, a great difference is noted in the folding of the wall in different parts. In the anterior end those portions of the wall bearing the plates extend but a little, if any, into the lumen of the intestine and are hardly noticeable as folds (fig. 19). Passing back the four plate-bearing folds are seen to extend further and further towards the center of the section until, near the posterior end, the plates nearly touch (fig. 20). During this change in the four primary folds the smaller ones between them have also increased in size. The microscopical structure of the wall of the gizzard is very similar throughout. Sections through the plates show the cuticular layer to be dark and thick, between the plates it is thinner and colorless. In the posterior region, where the four folds are well developed, there is generally a space between the layer of circular muscles and the hypodermis (fig. 21) but this may be due to the separation of the layers in the preserving fluid. Mid-intestine. This region of the alimentary canal extends from the third to the seventh abdominal segment. In external view there is a very noticeable annulated appearance, due to the alternating ridges and depressions which from any one view, extend across the intestine. Such an appearance occurs over the entire section of the alimentary canal except for a short distance at either end. For 2mm from the posterior end the surface is smooth; at the anterior end about 1mm of the intestine appears smooth externally, but longitudinal sec¬ tions show even this part to be slightly annulated (fig. 22) These folds do not all show a regularity in making a complete circumference of the intestine or in the distance separating them from each other. When, under a strong dissecting lens, Marshall — On the Anatomy of the Dragonfly. 767 the folds are followed around the intestine it is seen that, be¬ fore making the entire circumference, nearly all of them either come to a sudden end or branch. At the anterior end the folds are smallest and are continued over that portion of the mid-intestine which takes part in the formation of the’ oeso¬ phageal valve (fig. 22). Over most of the mid-intestine, ex¬ cept at either end, there is often a smaller secondary fold on the apex of the primary ones (fig. 23). Throughout the entire extent of this region of the alimentary tract there are, except in the nidi, no great histological dif¬ ferences ; the size and form of the cells change on account of the folding of the wall. There is but a slight development of the circular and longitudinal muscular layers. The epithelial cells are long and narrow (fig. 24), becoming shortest at the regions of the secondary folds. The striated layer, rhabdorium, is present; at some places it contained a number of vacuoles but, as the dragonflies were taken at a period of inactivity, but few of the peculiar appearances due to secretory activity were seen. Over the entire mid-intestine nests of cells, nidi, are very noticeable (fig. 25) and are remarkable for their great abund¬ ance. The structure here is very similar to what has been described in the dragonfly nypmph, Sadones (24), Needham (14). All the dragonflies studied were caught during a day or two of unusually cold weather and had all been without food for some time; this tended to retard the secretory activities of the digestive tract. Specimens dissected showed the entire fore-intestine empty and in a large majority the same condition prevailed in the anterior part of the mid-intestine. Needham (14) found that within about an hour after feeding the discharge of the cells in the anterior part of the mid-intestine commenced, to be followed a little later by the more posteriorly situated cells. The adult dragonfly, as well as the nymph, is a great feeder and the conditions relative to this discharge would be as apt to occur in the former as in the latter stage. Hind-intestine. A dorsal view of the ileum shows an i ir¬ regular longitudinal folding of the w.all, extending from end 768 Wisconsin Academy of Sciences, Arts, and Letters. to end; at its anterior end each fold has a narrow beginning and is fairly straight for a distance of lmm, it then widens, becomes irregular and shows a great many indentations and transverse folds. The ileum at its posterior end becomes nar¬ row and here the folds end. An examination of the entire surface shows that there are six of these apparent folds. A study of transverse sections through this region shows that these apparent folds are in reality due to an equal num¬ ber of internal folds. Where each internal fold sinks in from the wall it makes, on the external surface, a distinct, irregular furrow; these furrows appear dark from an external view and give the appearance of external folding to the regions be¬ tween them. The relation of the apparent external and real internal folding is best understood hv a comparison of the sur¬ face view of the ileum (fig. 26) with a section through the same region (fig. 28). Faussek (10) found in the nymph of Aeschna that in the hind-intestine there were two different kinds of cells. He says : “Die ganze oberfiache des Diinndarmes namlich ist mit einem Epithel bedeckt, das nicht, wie gewohnlich, gleichartig ist, sondern zwei, der Grbsse und deni Charakter seiner Zellen nachr scharf sich unterscheidende Formen zeigt. In der Vertheilung derselben is gar keine Regelmassigkeit zu bemerken; sie sind Stellenweise auf der Wand cles Diinndarmes zerstreut, und wechseln mit einander ab”. He then speaks of the large cells with the large nuclei in contrast to the smaller ones. While this description from Faussek is in part true here there are some difference between the Aeschna nymph and the imago of Libellula Jrmaculata. In the latter the large cells are en¬ tirely restricted to the ileum and confined there to three places. When one examines the ileum after it has been cut open, stained and mounted with the inner surface uppermost, the three areas to which the large cells are confined can be distinguished by the size of the cells and of their nuclei. It is seen that there is a large area of these cells near the anterior end of the- ileum and two small areas lying near the posterior end. Marshall — On the Anatomy of the Dragonfly. 769 A study of a series of transverse sections through the ileum shows that very near the anterior end these large cells, as al¬ ready stated, first appear in a large area which is ventral in position. In most parts of the ileum the epithelial layer is thrown into six longitudinal folds which, in a few sections, are quite large ; this area of large cells does not show any such folding hut lies parallel to the layer of circular muscles (fig. 27, stippled part) and occupies the place of one of the folds, there being, as shown in the figure, this area and five folds.. This arrangement continues for some distance, then the area of large cells ceases and its place is taken by a fold, the sixth, corresponding to the other five. Posterior to this come the other two areas of large cells, lateral, but a little ventral in position ; these do not occupy so definite a region as the single large area but each one is in reality a part of the regular folds (fig. 28, stippled part). This arrangement continues un¬ til the ileum decreases in diameter near its posterior end. At the anterior end of the ileum the longitudinal folds begin very abruptly and there is, but for1 a short distance however, a greater number of circular muscles than at other parts. The folds are at first not very large ; they then increase in size and, in the last third or half of the ileum, become still larger and so remain until, near its posterior end, the ileum decreases in diameter. In this last region the folds nearly touch, making the lumen small and very irregular in trans¬ verse section. Hear its posterior end the ileum becomes nar¬ row and at the beginning of this narrow region the longitudinal folds end. This narrow portion forms only a small part of the entire length of the ileum but in appearance is quite dis- distinct; viewed from the surface this region appears like a collar around the hind-intestine; it has a peculiar, somewhat inflated, appearance or, often there are several small, rather irregular swellings. In this same region there were often found other swellings of various sizes, irregular in position ex¬ cept that they were always located in the same part; these were due to abnormal, parasitic, growths. 770 Wisconsin Academy of Sciences, Arts, and Letters. Sections through this narrow part of the ileum show the wall to he folded and that the folds may nearly close the lumen. A longitudinal section (fig. 29) shows the folds to be more numerous in the posterior part. At two different places there is a larger number of circular muscles than usual (fig. 29, cm). The more anterior of these two groups of muscles is the larger and would, in contraction, close the opening be¬ tween the ileum and the rectum ; the more . posteriorly sit¬ uated group would have the same action. The large cells mentioned as occupying three areas in the ileum are not sharply marked off from the regular epithelium but the one kind passes gradually into the other. The smaller regular epithelial cells (fig. 30) show no peculiarities ; the cy¬ toplasm is slightly vacuolated and longitudinal striae were noticeable in the cells. In the large cells (fig. 31) this stri- ation, (Sadones, 24), was more apparent; in them the nucleus was large and irregular and it generally showed a massing of the contents in that half nearest the lumen of the ileum. As Faussek (10) says, so great a difference in the structure of the cells must signify some physiological difference and a cytolog- ical study of the ileum during different periods of nutritive and other activities would no doubt lead to interesting results. The presence of these large cells in the ileum has been ob¬ served in other insects. The rectum, 2mm in length, extends through the posterior half of the ninth and the tenth segment. Except for a short distance at either end, where it is slightly narrower, it is straight and of equal diameter throughout. In external view the rectal glands are seen to occupy nearly all the surface, they appear as six wide longitudinal areas with narrow, darker space's between. The difference between the two parts, rec¬ tal glands and intermediate space, does not show as plainly as in most insects, as here the latter spaces are nearly covered by the rectal muscles and thus in part hidden. The six rectal glands begin near the anterior end of the rectum and continue to within a short distance of the anal opening (fig. 26, Rt.). Marshall — On the Anatomy of the Dragonfly. 771 A transverse section of the rectum shows that the glands are well marked off from the spaces between them. The glands themselves are composed of long columnar cells, varying in length in different parts. Those along and near the margins of the glands are shorter than the more centrally located ones. The nuclei of these cells are elongated with rounded ends and each lies near the center of the cell to which it belongs, Hear the base of these cells and just within the basal membrane there is an irregular row of the nuclei ; these are large and more spherical than the regular ones. The cuticular layer cover¬ ing the rectum, is rather thick and the regular muscular layers are not well developed. In transverse section that part of the wall situated between the glands is folded and the epithelial cells, as contrasted to those of the glands, are very much re¬ duced in size. Just anterior to the anus the rectal glands cease and the entire wall of the hind-intestine becomes very thin. There are a number of small muscles found on the rectum; these are easily seen in a dissected specimen to pass in part from the rectum to the wall of the body. A transverse sec¬ tion through the posterior half of the rectum shows that these muscles are attached to the narrow spaces between the rectal glands (SadoneS', 24). From each of these spaces there is, in the posterior part of the ninth segment, a group of from two to four muscles which pass to the wall of the body at the an¬ terior part of the tenth segment; the two most dorsal groups are larger than the others. Ventral and also somewhat lateral there are at either side two or three small muscles which, leav¬ ing the rectum, also between the rectal glands, pass forward to the body wall at the side of and on the anterior end of the ninth segment ; here they have a common point of insertion. Salivaky G-lands. The salivary glands of the Odonata received but little at¬ tention until the appearance of the paper by Bordas (3), in this work these glands were described for a number of different species of dragon flies. The first special work on the subject 772 Wisconsin Academy of Sciences, Arts, and Letters. to which any reference can be found is by Roletajew (19) who describes the salivary glands as paired, oval, acinose glands sit¬ uated in the prothorax near the first thoracic ganglion. Small ducts in each gland lead into the larger ones nntil there is finally a large duct whiqh empties into a reservoir. “Ein jeder Speichelgang erweitert sich am vorderen Ende zu einem Speich- elsack oder Reservoir’7. There is a short duct from each res¬ ervoir, the two joining to open by a single outlet near the base of the hypopharynx on its under surface. In Libellula Jf-maculata the salivary glands are situated, as in other dragonflies, in the prothorax ; there is but a single pair, and these lie at either side of and generally a little ventral to the oesophagus. In some specimens the glands extend back a short distance into the mesothorax. Each gland has a slight¬ ly bilobed appearance and is, in part, divided into an anterior and a posterior portion (fig. 32). A duct leaves the anterior margin of each gland ; it runs forward through the cervical region and, upon entering the head, turns ventrad and takes a slightly posterior direction until it reaches the reservoir, which lies at the base of the hypopharynx, one end of which it en¬ ters. From the other end of each reservoir a short duct passes towards the floor of the buccal cavity; these two short ducts, each .28mm long, unite before emptying into the buccal cav¬ ity. The duct, both upon entering and leaving the reservoir, is of the same structure, it is in each instance covered for a' short distance by a prolongation of the wall of the reservoir; this covering gradually decreases in thickness (fig. 33). Each salivary gland of Libellula J^-maculata is flattened and irregular in shape, broad distally but pointed at the anterior end from which the duct leaves. Each gland is composed of a number of small lobes which are in turn made up of many smaller acini. Within and near the center of each acinus is a small collecting duct which runs between the cells. These ducts unite with others in the small lobes; the ducts from the lobes unite with or empty into those from other lobes until all finally assemble in the large duct which leaves the anterior end of each gland. Each acinus is composed of a number of Marshall — On the Anatomy of the Dragonfly. 773 uninuclear -cells, the boundaries of which are difficult to dis¬ tinguish (fig. 34). Many of the acini look as if they were hollow, the central part containing a secretion. This appearance is due to the difference in structure in different parts of the cells. In the basal half or two-thirds of each cell (the nucleus is always with¬ in this part) the cytoplasm stains readily; in contrast to this the outer half or one-third of each cell did not stain very dark with haematoxylin. In the acini this darker-staining basal portion appeared as the wall and the lighter part as the cen¬ tral cavity. Upon closer examination one can see both these- parts belong to the cells and that the portion in which the stain was not so effective was dne to the accumulation of se¬ cretion in the outer half or third of the cell. Both Poletaew (19) and Bor das (3) speak of the swollen parts of the ducts situated on the base of the hypopharynx as the reservoirs. Bordas (2) in his first paper does not use this word but calls them “glandes buccales”. Poletaiew (19) in the quotation we have already given at the beginning of the ac¬ count of the salivary glands, used the word reservoir; he de¬ scribes the peculiar external appearance of the reservoirs as due to the euticular layer and says : “die an ein netzformiges Zel- lengeflecht aus dem Gewebe einiger Blatter erinnert.” In plate 1, figure 5, he shows the reservoirs of a species of Lestes, the markings on which, as he gives it, resemble the shingles on a house, the shingles having rounded, exposed ends. Bordas (3) figures the reservoirs in three species of dragonflies ; Agrion minium ■, Corduleg aster annulatus and Cordulina aenea. All of these appear very similar to what has been found in Libellula 4-maculata. Bordas gives enlarged views of a part of a res¬ ervoir of Anax formosa , both from the surface and in section. In his surface view the cells are shown with a polygonal outline, in section the wall is shown to be equally thick throughout and without the large protrusions so noticeable in the species here described. Berlese (1) in his text-book figures three cells, in section, from the reservoir of a species of Diplax and labels 774 Wisconsin Academy of Sciences , Arts, and Letters . the figure as a portion of the wall of the salivary gland near the mouth. The two reservoirs of the salivary glands of Libellula f- maculata are found on the basal part of the hypopharynax (fig. 32). Each receives a duct from one of the salivary glands, each duct where it enters the reservoir is much thicker than at other parts ; this thickness is due to the wall of the reservoir extending for a short distance out over the duct and forming a second wall much thicker than the real one (fig. 33). From the more rounded basal part of each reservoir a short duct leads off, these two ducts soon unite to form a common one (fig. 35) which opens at the base of the hypopharynx. The wall of the reservoir is peculiar in structure and, at first view, one is apt to consider it as composed of two layers of cells ; one, the inner, protruding beyond the other. A surface view of the inner surface (fig. 36) shows a number of separ¬ ated cells having no connection with each other until the focus is dropped and then the outer portion of the wall comes into view. In many of the specimens examined these cells, from this inner surface view, showed an irregular or scalloped mar¬ gin; whether this is due to shrinkage I am unable to say as all the specimens studied were from preserved material. A sec¬ tion of the wall (fig. 37) shows that the outer half or third is entirely continuous and regular and that the inner part is composed of wide prolongations which give to the wall a pa¬ pillate appearance. These protruded parts make up the larger part of the wall. Ho cell boundaries can be seen at any part but one would expect to find them dividing the protruded parts from each other or where the wall is thinnest; this is the way they have been figured by Berlese (1, Fig. 584, B, II). Over the inner surface of the leservoir the cuticula is quite thick but lacks the taenidial structure that is present in the ducts. A study of the reservoirs, both in surface view and in sec¬ tions, fails to convince me as to the true nature of the nuclei of the cells. In both these views very many cells are found that have all the appearance of being binucleate. In nearly every Marshall — On the Anatomy of the Dragonfly. 775 instance where this appearance was noted the adjacent walls of the apparent nuclei touched. Often in surface view a sup¬ posedly binucleate cell could he seen by careful focussing to give a view in which these two apparent nuclei were connected. In many sections nuclei were seen of a greatly bent horse-shoe shape, the two prongs of the shoe being short and projecting to¬ wards the outer wall of the reservoir. The nuclei always lie in the large projections but may extend out into the other part of the wall. It appears that each cell really has but a single nucleus but that it is generally very much bent. While these two enlargements at the end of the ducts have been called the reservoirs of the salivary glands, and, from their position and connection, would appear to act as such, their structure would seem to give to them more than a passive function. In most of the specimens examined the cells showed, between the nucleus and the outer wall of the reservoir, a dis¬ tinct striation in the cytoplasm giving to them the appearance of active secretory cells. From the whole structure one would suppose that the secretion was expelled from the outer wall or that, if it found an exit into the reservoir there were special ducts to pass the secretion through the thick cuticula, lining the inner wall. Ho such ducts were observed, the only struc¬ tures that could in any way be taken for a collecting tube or passageway were small dark spots; these were rather regular in their appearance just where the inner comes nearest the outer wall (fig. 37, s). These were also seen as dark strands running from one cell to another parallel to the outer surface of the reservoir but could never be followed for any great dis¬ tance. A study of this so called reservoir of different species of dragonflies during periods of rest and activity might solve this problem. From the more rounded end of each reservoir a. small duct leads out, the two shortly uniting (fig. 35). The wall of this common duct has for some distance the peculiar covering of cells from the reservoir that was observed on the long ducts just before their end. Before opening externally the structure of the wall changes to a regular hypodermal layer with a thick 776 Wisconsin Academy of Sciences, Arts, and Letters. cuticular lining (fig. 38). Muscles are inserted on either side at the opening of the duct on the hypopharynx. Malpighian Tubules. In a general dissection of Libellula 4,-maculaia the Mal¬ pighian tubules are seen to arise from the intestine near the posterior end of the seventh segment ; from here they all ex¬ tend backward and lie principally in the eighth and ninth ab¬ dominal segments, seldom extending hack into the tenth. In the ninth segment some of the tubules bend and run forward again but not beyond their point of union with the intestine. The ileum is covered with the tubules and they are in general more numerous here than over the rectum. An examination of the union of , the tubules with the in¬ testine shows that they do not open into it singly hut that sev¬ eral tubules unite to form a common vestibule which opens at the boundary of mid-and hind-intestines. ' The number of these openings varied in the specimens in which they were counted, there being from eighteen to twenty-two ; the number of Mal¬ pighian tubules uniting for a common opening varies from two to twelve, the average was 8.25. The minute structures of the tubules is similar to what has been found in other insects. The different tubules are similar as to size and structure or, if variations do occur, they are only what might he expected from an examination of a great number of sections and surface views. In the vestibule and in the tubules just before opening into it, the epithelial cells are smal¬ ler than in other parts. A few of the tubules showed an ab¬ normality in that they -were very short with swollen ends, in which part the wall was somewhat thinner than usual and the lumen much larger. The lumen of the tubules is very irregular and, examining a number of specimens, one often sees in a single tubule that the lumen changes in diameter. An examination of transverse sec¬ tions also showed this variation in size of the lumen and that it was always irregular and angular. Griffith (12) noticed this Marshall — On the Anatomy of the Dragonfly. 777 same irregularity and said : “the internal cavity of one of these tubules is very irregular”. Male Reproductive Organs. The two testes (fig. 39, T) are long and cylindrical. Each arises in the posterior part of the third abdominal segment to one side of and slightly dorsal to the mid-intestine. Each, in passing backward, shows at first a slight outward curve, this soon ceases and the testes run parallel to and along side of the alimentary canal to the posterior margin of the seventh seg¬ ment. From each testis there arises, in the anterior end of the eigth segment, a vas deferens which, continuing in the direc¬ tion of the testis, extends to near the middle of the ninth seg¬ ment. At this region each vas deferens suddenly turns inward and forward; after a short distance (less than the length of the segment) in this direction each suddenly bends once more, and, passing backward again the two approach and unite just over the common external opening which lies ventral and med¬ ian on the ninth segment (fig. 40). This last portion, that part from the final bend to the union of the vasa defferentia, is larger than at any other part and forms here, at the prox¬ imal end of each vas deferens, a seminal vesicle. A longitudinal section through a testis shows it to be made up of many cysts arranged in from one to three layers around a central tube which has a distinct wall of epithelial cells. This central duct starts back of the terminal cysts and runs longitudinally through the testis its continuation outside of which is the vas deferens (fig. 41) . Leading into this main cen¬ tral tube are many small efferent ducts which carry the sper¬ matozoa from the cysts. The vas deferens shows in transverse sections that it is not completely filled with sperms there being a central rod-like mass of cells which passes through it. The cells composing this central core are similar in structure to .the epithelium. An examination of serial sections shows that at or near the place where the vas deferens leaves the testis there are prolonga- 778 Wisconsin Academy of Sciences , Arts, and Letters. tions of the epithelium which give to the lumen very odd shapes, these outgrowths finally take the form of a solid central core. This mass of cells passes entirely through the vas deferens and finally fuses again with the regular epithelial layer of the wall. A transverse section through any part of either vas deferens (fig. 42) will show this central core of cells and also that the sperms occupy entirely or in part the space between it and the epithelium of the true wall. Longitudinal sections of the vas deferens show that the central core is now and then supported by strands of cells which connect it to the epithelium. In transverse section the wall of the vas deferens is seen to be composed of twro layers. The inner of these, the epithelium, is a single layer of columnar cells each cell containing an ir¬ regularly ovoid nucleus (fig. 43). The outer layer of the wall is not so thick as .the epithelium ; it is composed of from one to three layers of cells, these are generally flattened but where there is a single layer this is mot the case. If two or more layers of the cells are present the inner layer is much more flattened than the others. The nuclei of these cells are small and their form varies with the shape of the cell. At the place where the vas deferens leaves the testis there is more or less fat present ; some of these small fat masses can be traced down over the vas deferens into this outer layer. Where the trach¬ eae in any way touch the vas deferens the fat which may sur¬ round them can be seen to connect with these fat cells which surround the latter. This layer surrounding the vasa defferen- tia is a continuation of these fat cells. Following in serial sections the vas deferens it is seen that where it widens to form the seminal vesicle the structure of the wTall changes. In the vesicle (fig. 44) the epithelial layer has changed only in the cells being shorter and that the cell boundaries are' very difficult to find. The fat cells as a layer Lave disappeared and in their place we find a wider layer of muscle fibres running in various directions. Along the free surface of the epithelium a cuticular layer is present. Marshall — On the Anatomy of the Dragonfly . 779 The common opening of the testes is ventral on the ninth segment between two valves (tig. 45). It is in the form of a longitudinal slit situated on the apex of an elongated papilla and can he seen after the valves have been raised. The rather thick chitinous covering over the surrounding region of the body is interrupted in two places by thinner areas (tig. 45, at ends of bracket x), these act as the hinges on which the valves move. In many of the specimens examined the seminal vesi¬ cles were tilled with sperms. Accessory glands were not found in connection with the male reproductive organs. The view that the wall of the sem¬ inal vesicle has a glandular function, Fenard (11), does not seem so probable as to give to the epithelium of the vasa def- ferentia this function. A comparison of the structure of the wall of these two will show that in the former part (tig. 44) the epithelial cells are much smaller than in the latter (fig. 43). In the vas deferens the cytoplasm may not have the same appearance in different parts of the cell, near the outer sur¬ face there was noticed in some specimens a darker zone which contrasted very clearly with the rest of the cell contents. There has been some doubt about the presence, in con¬ nection with the vasa defferentia of one or more seminal vesi¬ cles. In our specimens there has not only been noted the presence of masses of sperms in the vesicles (fig. 45) but the great enlargement in the proximal ends of the vasa and the change in the histological structure of the wall would point to the formation at this place of seminal vesicles. Palmen (16) noted this in the dragonflies and, amongst others, in species oi Libellula ; he says: “Die beiden Vasa deferentia fand Ich vesiculaartig ausgedehnt, wie bei den Ephmeriden ; sie legen sich im hinteren Korperende in S-fdrmige Biegungen und laufen zuletzt, einender median beruhrend, eine kurze Strecke nach vorne ; hier vereinigen sie sich, und der mittlere Theil dringt conisch abwarts gegen die am neunten Sternite bel egene Geschleehtsoffnung.” 780 Wisconsin Academy of Sciences , Arts , and Letters. Female Reproductive Organs. The female reproductive organs of the dragonflies have al¬ ready received considerable attention. The earliest real an¬ atomical account to which any reference can he found is that by Rathke (21). Calvert (5) calls attention to the fact that he was unable to examine this paper and knows of it only through the references of others. Requests to the libraries of several of our largest Universities failed to obtain this work. Rathke was followed in his work by Siebold (26), Palmen (16) and Fenard (11). Siebold (26) has shown the presence of copulatory pouch and seminal recepticle and, in fact, describes the latter in the species of dragonfly which is the subject of this paper. He says: uLibellula J+ maculata bi'etet eine Abweichung dar, in den Hire beiden Samen kapseln nur zwei ldeine Blindsachen vorstellen”. The two ovaries occupy relatively the same position in the female that the testes do in the male. They begin in the first abdominal segment— the terminal filaments extend forward in¬ to the thorax — and end in the middle of the sixth segment ; at this point the oviducts, which have for some distance been along the outer margin of the ovaries (fig. 51, Odt.), con¬ tinue alone to join finally near the anterior margin of the eighth segment, to form a common oviduct. This passes into the vagina which continues to the outlet. The ojiening of the vagina is ventral on the posterior margin of the eighth segment. From a posterior view the opening (vulva) is shaped like a capital T, the upright of the T in¬ stead of having a short horizontal bar for its base has an oval shaped opening (fig. 50). In the vagina, when empty, are numerous large and small longitudinal folds in the wall the two ventral ones of which are much larger than the others (fig. 54). These folds make the vagina appear very irregular in all transverse sections. Lining the vagina is a thick cuti- cular layer. Marshall — On the Anatomy of the Dragonfly. 781 Each ovary consists of a great many ovarian tubules which lie side by side closely packed together. The ovaries are changed very greatly in size by the growth of the oocytes ; in some specimens they are but little larger than the testes while in others the entire abdominal cavity is nearly tilled with them. The terminal filaments of the ovarioles lie nearly parallel to the longitudinal axis of the oviduct and along its inner and in part ventral surface. Each ovarian tubule (fig. 46) has, distally, a long and thin terminal filament. This is followed by a small terminal cham¬ ber in which the youngest oocytes are found and these, passing backward in the tubule, increase in size, very soon to become arranged in a single row, this linear arrangement persists until the end. Proximally there is a short basal stalk through which the oocytes pass before entering the oviduct. In Lihel- lula Jf-maculata there are no terminal or other food chambers. The follicular epithelium is rather thin over all parts of the tubule; it, as usual in insect ovaries, consists of a single layer of cells except between the egg chambers. The two oviducts, passing back and converging towards a common median line, finally join to form a short; oviductus communis. This lies ventral to the seminal vesicles, continues but for a short distance, and then passes into the vagina (fig. 49, Vg). In section the common oviduct shows the presence of a thin layer of longitudinal muscles which is absent in the vagina. Besides this layer of muscles both the common ovi¬ duct and the vagina have at either side a considerable mass of muscles (fig. 55). The vagina, as already mentioned, is very irregular in shape, the wall is longitudinally folded and two of these folds are much larger than any of the others. The two larger folds can be seen in a dissection in which the vagina is cut open longitudinal¬ ly (fig. 47) or in transverse sections. In this latter case the folds may come from near the ventral wall of the vagina or may have their origin at some place on the lateral walls (fig. 54). The wall shows a thick cuticular layer with a notice¬ able lamellate structure. This layer varies greatly in thick- 782 Wisconsin Academy of Sciences, Arts, and Letters. ness in different parts. The hypodermal layer contains small ovoid nuclei, in it the cell boundaries are difficult to distinguish (fig. 56). The seminal vesicles lie dorsal to the union of the two oviducts. These (fig. 47, Rp. Sem.) are irregular in out¬ line and each somewhat kidney shaped; the two are joined together and form a body somewhat the shape of a dumb-bell. The union of the right and left recepticles is more clearly seen in a transverse section through the region of their union (fig. 55). In all the specimens examined the seminal re¬ cepticles were entirely or nearly empty and what their appear¬ ance would be when filled with sperm is not known. From the wrinkling of the inner wall one would judge that the cavity ■would be very much enlarged if stretched by being filled. Median and just posterior to the union of the receptacles lies a peculiar chitinous piece, the collar (fig. 47, Cu. Co.). This at first appears to be a ring encircling in this place some part of the reproductive organs but a more earful examination shows that the ring is not a complete circle but is ventrally imper¬ fect. Posterior to the ring and dorsal in position there is a chitinous piece, not so thick as the collar, extending back and prolonged laterally into two blunt projections (this is shown in figure 47). The chitin forming this piece varies in thickness, being thicker near the ring than along any of the free margins. A sagittal section shows several muscles that arise from the pos¬ terior end of this piece (fig. 48, M;), the action of these would give to the ring a backward and forward motion. In this same view the collar has, more the shape of a wine glass, with these muscles coming from the tip of the stem and the cup of the glass being occupied by a prolongation of the cavity which lies just back of the junction of the receptacles. From this same view the chitinous piece is seen to be free on all sides and not connected with any other tissue; this makes possible what ever movement it may have. What this chitinous collar is for is not known and it would be necessary to examine a number of specimens during and after copulation to determine its real use. It is very possible that the Marshall — On the Anatomy of the Dragonfly. 783 muscles attached to it pull it back from the seminal receptacles and, having the other and larger anterior end in part concave, one would suppose that it would have to do with pumping the sperm out of the receptacle. Where the openings of the two seminal receptacles join there is a large cavity with a very much wrinkled and folded wall. This passes backward into a narrow passageway which extends posteriorly into the vagina. From a dorsal view this outlet appears to pass directly through the center of the chitinous collar hut it in reality passes ventral to his part (figs. 48 and 54). A little posterior to the collar the passageway shows a slight enlargement (seen in figure 47, just posterior to). Both from an examination of traverse sections and from entire mounts of this part of the reproductive system the lateral walls of this passageway are seen to have a number of cuticular setae which extend inward from the wall on which they originate (figs. 47 and 54). A section through this wall (fig. 52) shows very thick epithe¬ lial and cuticular layers. The epithelium consists of long nar¬ row cells with ovoid nuclei. The inner two-thirds of the cuti¬ cular layer has a very marked lamellate structure, this is fol¬ lowed by a much thinner layer (stippled in figure) which was blue in the slides stained with haematoxylin ; and, last of all, an inner transparent layer from which the setae arise. The use of these setae is not at all clear, and, as only one of my specimens contained sperm in these parts of the reproductive organs, it was impossible, if they had a special function, to arrive at any conclusion as to what this function was. The one specimen in which sperm was found showed that in this pas¬ sageway they were arranged in regular rows running in two directions (fig. 48). An examination of this surface with a high power showed that these strings of sperms corresponded fairly regularly to the spaces between the setae; this is shown in figure 53 where the small circular areas represent the setae cut transversely. Such an arrangement of the sperm would naturally follow its being forced between the setae but if this in any way .persists and has anything to do with some special 784 Wisconsin Academy of Sciences, Arts, and Letters. final arrangement of the sperm it was impossible to determine from the single specimen in which this was shown. At the anterior end of the vagina there is a dorsal outgrowth with two somewhat lateral prolongations, all of which forms the bursa copulatrix (figs, 47 and 48, Br. C). In Libellula the copul atory pouch does not form as distinct a body as in many other insects. Zoological Laboratory, University of Wisconsin. April, 1912. BIBLIOGRAPHY 1. Berlese, A. Gli insetti. Milano, 1906. 2. Bordas, L. Glandes salivaires des Libellulidae. Bull. Mus. Hist. Hat, I, 1895. 3. Bordas, L. Les glandes salivaires des Pseudo-H europteres et des Orthopteres. Arch, zool, Exper., 3ser. Y, 1898. 4. Burmeister, II. Llandbuch der Entomologie. Berlin, 1832/1847. . 5. Calvert, P. P. Catalogue of the Odonata (Dragonflies) of the vicinity of Philadelphia, with an introduction to the study of this group of insects. Trans. Amer. En- tom. Soc. XX, 1893. 6. Calvert, P. P. Odonata from Tepic, Mbxico, with supple¬ mentary notes on those of Baja California. Proc. Calif. Acad. Sc. 3 ser. Zool. I, 1897/99. 7. Chun, C. U'eber den Bau, die Entwicklung und physiolo- gische Bedeutung der Rectaldrusen bei den Insekten. Abh. Senckenberg. Xaturf. Ges. Frankfurt a/M. X, 1870. 8. Bufour, L. Pecherches anatomiques et physiologiques sur les Orthopteres et les Hymenopteres et les Xeuropteres. Mem. Acad. Sc. Paris VII, 1841. 9. Bufour, L. Etudes anatomiques et physiologiques, et observations sur les larves des Libellules. Ann. Sa Hat, 3 ser. XVII, 1852. Marshall — On the Anatomy of the Dragonfly . 785 10. Faussek, Y. Beitrage zur Histologie des Darmkanals der Xnsekten. Zeit. wiss. Zool. XLY, 1887. 11. Fenard, A. Becherches sur les Organes complementaires internes de Fappareil genital des Orthopteres. Bull. Sc. Franc-Belg. XXIX, 1897. 12. Griffiths, A. B. On the Malpighian tubules of Libellula depressa. Proc. Boy. Soc. Edinb. XY, 1889. 13. Higgins, Helen, T. The development and comparative structure of the gizzard in the Odonata Zygoptera. Proc. Acad. Hat. Sc. Phila. LIXX, 1901. 14. Heedham, J. G. The digestive epithelium1 of dragonfly nymphs. Zool. Bull. I, 1898. 15. Packard, A. S. Hotes on the epipharynx and the epi¬ pharyngeal organs of taste in mandibulate insects. Psyche Y, 1889. 16. Palmen, J. A. fiber paarige Ausfuhrgange der Gesch- lechtsorgane bei Insecten. Helsingfors, 1884. 17. Plateau, F. Becherches sur les phenomenes de 1a. Digestion chez les Insectes. Mem. Acad. Boy. Bruxelles XLI, 1874. 18. Poletajew, H. Des glandes salivaires chez les Odonates. C. B. Acad. Sc. XCI, 1880. 19. Poletajew, H. Speicheldriisen bei den Odonaten. Horae. Soc. Entom. Buss. XYX, ,4880. 20. Bamdohr, K. A. Abhandlungen iiber die Yerdauunge- werkzeuge der Insecten. Halle, 1811. 21. Bathke, FI. De libellularum partibus genitalibus. 1832. 22. Bis, F. FTntersuchungen liber die Gestalt des IFaumagens bei den Libellen und ihren Larven. Zool.- Jahrb. Syst. IX, 1897. 23. Poster, D. A. Contributo all anatomia ed alia biologia degli Odonati. Bull. Soc. Entom. Fr. XVII, 1885. 24. Sadones, J. L’appareil digestif et respiratoire larvaire des Odonates. La Cellule XI, 1896. 25. Siebold, S. T. H. v. FTber die Begattung der Libellen. Wegm. Arch. Haturgesch. 1838. 786 Wisconsin Academy of Sciences, Arts, and Letters . 26. Siebold, C. T. H. v. Uber die Edrtpflauzung der Libellen. Oermars Zeit. Entbm. II, 1840. 27. Smith, J. B. Epipharynx and hypopharynx of Odonata. Proc. Am. Assc. Adv. Sc. 1891. 28. Smith, J. B. An essay on the development of the month parts of certain insects. Trans. Am. Phil. Soc. XIX, 1898. 29. Voinov, D. X. Epithelium digestif des numphes d’Aeschna. Bull. Soc. Sc. Bucarest VII, 1898. REFERENCE LETTERS. A. Anterior. Ant. Antenna. Ap. Apodeme. Br. Brain. Br. C. Bnrsa copulatrix. Bm. Basement membrane. C. Brush. Cly. Clypeus. Cm. Circular muscles. Cu. Cuticula. Cu. Co. Cuticular collar. D. Dorsal. E. Eye. Ep. Epicranium. Epth. Epithelium. FI. Fore-intestine. Fr. Frons. Ft. Fat bodies. G. Gena. Gu. Gula. H I. Hind-intestine. Hp. Hypodermis. Hyp. Hypopharynx. II. Ileum. L. Labium. Lb. Labrum. Lm. Longitudinal muscles. M. Muscles. Md. Mandible. Mes. th. Mesothorax. Met. th. Metathorax. MI. Mid-intestine. Mx. Maxilla. Mxp. Maxillary palp. Oc. Ocellus. Oes. Oesophagus. Op. Occiput. Odt. Oviduct. Odt. Cm. Oviductus communis. Pg. Pigment. Ph. Pharynx. Ph. PI. Pharyngeal plate. Pro. th. Prothorax. Rp. Sem. Receptaculum seminis. R. sgl. Reservoir of salivary gland. Rt. Rectum. S- gl. Salivary gland. T. Testis. Tr. Trachea. Yc. Sem. Vescicula seminalis. Vd. Yas deferens. Vg. Vagina. Vt. Vertex. Trans. Wis. Acad. Vol. XVII. Plate LXVIII Marshall : Dragonfly Irans. Wis. Acad. Vol. XVI I. Plate LXVIII Marshall : Dragonfly 'Trans. Wis. Acad. jPlate LXVIII Marshall : Dragois Marshall — On the Anatomy of the Dragonfly. 787 PLATE LXVIII. Fig. 1. Front view of head. X 8. Fig. 2. Side view of head. X 6. Fig. 3. Posterior view of part of the head showing gula, Gu. X 6. Fig. 4. A partly diagrammatic median sagittal section through the head and cervical region. X 10. Ap. 1 and Ap. 2 apodemes. Cv. cervical region. Fig. 5. View of a part of the opposed margins of clypeus and labrum., showing one of the two hinges, the right hand one. X 105. a — a, edge of labrum. b — b, edge of clypeus showing part of the curved chitinous rod on this side, t, tooth on edge of cly¬ peus. r, thickened chitin along outer edge of the cavity in labrum into which t fits. Fig. 6. Anterior view of the head with portions of the frons and of the clypeus removed; part of each eye cut away. The stippled part shows the partition separating the frontal from the clypeal cavity. X 8. Ap. 1 and Ap. 2 apodemes. M. lb. Elevator mus¬ cles of the labrum. M. ph. Muscle of pharynx. Fig. 7. Inner surface view of labrum, above, and of hypopharynx, below. Each part drawn and then joined in their natural posi¬ tion. X 40. Oes. Oesophagus, drawn only in part, not continued to its outlet. Ph. Position of teeth upon which labrum articulates (Fig. 5, t). C. Brush, (Fig. 8, c). Ph. pi. Pharyngeal plate (Figs. 8 and 10, Ph. pi.). Fig. 8. Median sagittal section of labrum, Lb. and hypopharynx, Hyp. X 20. The buccal cavity, the pharynx and the beginning of the oesophagus are shown. M. ph. Pharyngeal muscle. M. ep. Epipharyngeal muscle. Ph. pi. Section of the pharyngeal plate across the entrance to the pharynx (Fig. 7, Ph. pi.). C. One of the brushes on the labrum (Fig. 7, c). Fig. 9. Dorsal view of the alimentary tract. X 3. Cv. Cervical re¬ gion. Between MI and HI the dark lines represent the position of the Malpighian tubules, these are not drawn in full but only their position of attachment to the intestine represented by these lines. Fig. 10. View of the pharyngeal plate. X 40. Fig. 11. Sagittal section showing portions of the buccal cavity, the oesophagus and the pharynx. X 150. Gl. Glandular tissue on dorsal wall of pharynx. Fig. 12. Section through the dorsal wall of the pharynx. X 1100. Gl. Glandular tissue. Fig. 13. Transverse section of the oesophagus in the cervical region. X 280. Fig. 14. View of inner surface of cuticular layer of the oesophagus showing the small blunt projections which occur on this and other parts of the fore-intestine. X 1100. Fig. 15. Transverse section of the oesophagus cut through the meso- thorax. X 280. 788 Wisconsin Academy of Sciences, Arts , and Letters . PLATE LXIX. Fig. 16. Inner view of one half of the oesophageal valve, two plates of the gizzard shown, a, where fore-and mid-intestines join. Fig. 17. The gizzard opened longitudinally to show the four plates. X 15. Fig. 18. Surface view of one of the plates of the gizzard. The poster¬ ior half shows the rectangular area covered by the small chitin- ous projections (Fig. 14). X 52. Fig. 19. Transverse section through the gizzard, cut near the anterior end of the plates. X 70. In this and the following figure, 20, the inner irregular line represents the cuticular layer and the four plates are shown thicker, as they are, than the rest of it. Fig. 20. Transverse section through the gizzard near the posterior end of the plates. X 110. Fig. 21. Transverse section through wall of gizzard in position of one of the plates. X 875. Cu. Cuticula (plate). Fig. 22. Longitudinal section through the oesophageal valve show¬ ing at x the place where fore-and mid-intestines join, (a of Fig. 16.) Fig. 23. Longitudinal section through a portion of the wall of the mid-intestine showing three of the primary folds and the sec¬ ondary ones between them. X 110. x, outer surface. Fig. 24. A small piece of the wall of the mid-intestine, from a longi¬ tudinal section. X 740. Stl. Striated layer. Fig. 25. Part of wall of mid-intestine very near the posterior end — ■ from a transverse section. X 1100. Stl. Striated layer. Bm. Basement membrane. Nd. Nidus. Fig. 26. External view of hind-intestine. Fig. 27. Outline view of a transverse section through the anterior part of the ileum. The region occupied by the large cells is strippled. X 105. Fig. 28. Outline view of a transverse section through a region at about the middle of the ileum. At this place there are two areas of large cells, these are strippled. X 105. Fig. 29. Partially diagrammatic longitudinal section through the ali¬ mentary canal at union of ileum, II. with rectum, Rt. X 40. Pg. Pigment. Fig. 30. Part of transverse section of ileum showing the regular epi¬ thelial cells, Epth. and the cuticula, Cu. Nothing else drawn. X 550. Fig. 31. Part of a transverse section of the ileum showing the large cells. X 435. Fig. 32. Salivary glands, S. gl. and under surface of hypopharynx, Hyp. X 18. 1. Portion of the duct that is shown enlarged in figure 33. Fig. 33. Optical section of that portion of duct from salivary gland that is covered for a short distance by an extension of the cells of the reservoir. The same structure is found on the ducts just after leaving the reservoir. Position of the piece here fig¬ ured is shown at 1 in figure 32. X 280. Plate LXI^ Tuans. Wis. Acad. Vor,. XVII. Plate LXI'*' Marshall : Dragonfly Trans. Wis. Acad. V Marshall — On the Anatomy of the Dragonfly. 789 PLATE LXX. Fig. 34. Section through an acinus of the salivary gland. X 1700. cd. collecting duct. Fig. 35. Reservoirs of salivary glands — above a part of the large ducts leading from the glands, below the two short ducts and the com¬ mon one into which they unite. X 50. Fig. 36. Surface view showing a few cells, inner surface, of the sali- vary^ gland reservoir. X 875. This view shows the free ends only of the protruding portions of the cells. Compare figure 37. Fig. 37. Section showing two cells of the wall of the reservoir. X 1100. The heavy cuticula lines the inner surface, s, position of small dark objects which might have to do with outlet of se¬ cretion. Fig. 38. Opening of common duct, sd, from reservoir of salivary glands on surface of the hypopharynx at x. Combined from two sec¬ tions. X 280. Fig. 39. Dissection to show the male reproductive organs. Part of the alimentary canal removed. T, testis; Yd. vas deferens; Vc. Sem. vesicula seminalis. Fig. 40. Dorsal view showing proximal part of vasa defferentia, Vd., and the seminal vesicle, Vc. Sem. X 30. The common opening ventral, is shown by dotted lines near the posterior part of the vesicles, at X. Fig. 41. Longitudinal section of a small proximal part of a testis, T, and the vas deferens which passes out of it. X 105. The two layers of the wall of the vas deferens, the epithelial, Epth. and the fat, Ft. both shown. The central core or mass of cells inside the vas deferens is shown at Co. None of the strands of con¬ necting epithelial cells were shown in this section. Fig. 42. Transverse section of the vas deferens. The epithelial layer of the wall, Epth., and the central core of epithelial cells are stippled. The thick irregular black part shows a mass of sperms. Ft., layer of fat cells. Fig. 43. Transverse section of the wall of the vas deferens showing the epithelial layer, Epth. and the outer layer of fat cells, Ft. X 1100. Fig. 44. Section of the wall of the seminal vesicle. X 1100. Fig. 45. Transver’se section through the wall of the seminal vesicle showing its outlet to exterior between the valves, vl. X 105. At X the bracket limits the moveable chitinous flap which, with the one on the other side, close over the opening of the male reproductive organs. Fig. 46. Single ovarian tubule — part of terminal filament omitted. X 50. Fig. 47. Partly diagrammatic dorsal view of the female reproductive organs — ovaries and most of oviducts not drawn. X 50. The proximal ends of the oviducts, Odt., are shown. The passageway leading from the bursa copuiatrix, Br. C., to the seminal re- cepticle, Rp. Sem., is shown and part, p, of it is seen to have on its walls the cuticular processes shown in figure 52. This pass¬ ageway, P, passes under the cuticular collar appearing in the drawing to pass through it. The vagina has been in part cut open to show the large folds in its wall. The cuticular collar is shown at Cu. Co 790 Wisconsin Academy of Sciences, Arts, and Letters. Fig. 48. Median sagittal section through the proximal portion of the female reproductive organs. X 50. At p is the passage between the vagina, Vg., and the seminal recepticle (not drawn in this figure). Two dotted lines a — a and b — b where the connection between oviductus communis, Odt. Com., and vagina, Vg., is found two sections from the one here figured. Dark mass, sperms. Cuticular layers stippled. Epithelial layer shaded. At p and at a positions from which sections 54 and 55 were cut. PLATE LXXI. Fig. 49. View of last portion of oviducts, Odt., the oviductus communis, Odt. Com. and the vagina, Vg. X 30. Cu. Cuticular lining of the vagina. Fig. 50. View of the posterior end of the eighth abdominal segment showing the T — shaped opening, vulva, into the vagina, v., the free posterior end of the vulvar lamina. Fig. 51. Transverse section through the ovaries showing the many ovarian tubules sectioned and the oviduct, Odt., along each side. In the center of the figure is the heart, with stippled wall. X 50. Fig. 52. Transverse section through wall of the passage leading from the vagina to the receptaculum seminis (Figs. 47 and 48, p). The long hollow setae are on the inner free surface. X 875. Fig. 53. Surface view of portion of lateral wall of passage between vagina and seminal recepticle (Fig. 48, p). In this view the hollow setae have been cut transversely and are shown at s as little circles; the dark lines between these represent the strings of spermatozoa. X 740. Fig. 54. Transverse section through the reproductive organs, the cuti¬ cular layer only drawn and stippled. Cu. Co. section of cuti¬ cular collar, p., passage between vagina and seminal recepticle (Figs. 47 and 48, p). The two large folds of the wall of the vagina, V, are shown. Cut in about position represented in figure 48 at p. X 105. Fig. 55. Transverse section cut at about position a in figure 48. e, egg; ch, chorion of same; m, muscles of common oviduct and of vagina. X 105. Fig. 56. Longitudinal section through dorsal wall of vagina. X 875. Trans. Wis. Acad. Vol. XVII. Marshall : Dragonfly Pearse — On the Habits of TJca Pugnax. 791 ON THE HABITS OF UCA PUGNAX (SMITH) AND U. PUGILATOR ( BOSC). By A. S. Pearse. Zoology Department, University of Wisconsin. Fiddler-crabs are remarkable chiefly for the great size of one of the chelipeds on the males. The enlarged claw may oc¬ cur on either the right or left side. The females have two small chelipeds similar to the lesser one of the males. The use of the monstrous claw has been a matter of much speculation ; it has been variously supposed to serve as a stopper for the burrow, a spade for digging, a weapon for combat, a “nuptial couch” used during copulation, and to attract the admiration of the females. Smith and Weldon (’09), though they review the opinions of other writers, do not commit themselves as to the use of this peculiar structure. Alcock (’02) believes that it is used as a sort of flag, which is waved to attract the females. Caiman (’l'l) in his recent “Life of Crustacea” says (p. 106), “What the precise use of this enormous claw may be does not seem to be quite certainly known. It is said to be used as a weapon by the males in fighting with one another, but it seems too clumsy to be very efficient for this purpose. It is often brilliantly colored, and has been supposed to be a sexual adorn¬ ment.” The writer (’12) has shown elsewhere that fiddlers use their great claw with marked agility in combats with each other; indeed, one crab may throw his adversary three or four feet, and, as many such, contests have been observed (fig. 1), there seems to be no reason to doubt the claw’s efficiency as a weapon. 792 Wisconsin Academy of Sciences , Arts , and Letters. Once during the past summer a male was seen to grasp an ad¬ versary by the wrist and hold him at “arm’s length” above his head. From June 28 to August 13, 1912, the writer occupied a room in the Marine Biological Laboratory at Woods Hole, Mas¬ sachusetts, and had opportunity to extend his observations on fiddler-crabs. Fortunately this period cam© during the height of the breeding season. It is a pleasure to acknowledge the courtesy of those in charge of the laboratory, particularly Mr. George Gray. Fig 1. Uca pugilator. Two males fighting. The right hand one is partly in his burrow. Drawn from a photograph taken at West Falmouth, Massachusetts. Two species of fiddlers are common in suitable localities in the Woods Hole region. Both occur along the sheltered shores of estuaries and inlets, where they are usually found among the marsh grass (Spartina). The roots of this plant serve to sup¬ port the soil so that the crabs’ burrows do not cave in so readily when covered by water. Uca pugnax is most often found where the soil is of mud or clay ; and U. pugilator is more common on sandy beaches ; but the burrows of both species are often inter¬ mingled and mixed colonies are not infrequent. Aside from these differences in habitat and the fact that U. pugnax bred earlier in the season than U. pugilator, no difference was no¬ ticed in the behavior of the two species. The maximum number of burrows was found about two feet (vertical) below high tide mark, and some crabs even had holes above the tide limit. Where the tide had covered the beach with eel grass or other debris many of the burrows had Pearse — On the Habits of TJca Pugnax. 793 mud towers around their openings. These towers were some¬ times an inch in height. In the Philippines the writer had observed that the fiddler-crabs usually carried the mud exca¬ vated from their burrow eight or ten inches away, and it was noticeable that the Massachusetts fiddlers usually piled such mud close to their door-ways (fig. 2), contrary to the observa¬ tions of Smith (Stebbing, ’93, p. 90). The crabs dug most actively when the tide was falling. Then burrows which had caved in or been partially filled were repaired. In digging, Pig. 2. TJca pugilator.. A female at the mouth of her burrow. Drawn from a photograph taken at Falmouth, Massachusetts. dirt was scooped up with the walking legs of one side and car¬ ried behind the body (fig. 3). A detailed description of methods of excavating and carrying dirt has been given in a former paper (Pearse, ’12), and Stebbing (’93) reviews Smith’s earlier observations. Only once was a crab seen to use his great chela in digging. This was when a piece of shell blocked his way; he turned around, reached down the hole, and removed the obstacle with his chela. Sometimes, when the tide had washed the dirt away at the mouth of the burrow so that the opening was too large to suit the owner, mud or other material was carried to it and smoothly plastered down with the walking legs until the size was proper. Each hole was usually plugged just before the rising tide 794 Wisconsin Academy of Sciences, Arts, and Letters. reached it and remained closed while it was covered with water. Where the soil was fairly firm a crab would gouge a plug out of the beach and pull it down into the mouth of his burrow as he descended in such a way as to completely close the open¬ ing. On a softer beach a crab carried two or three pellets of mud which were placed about the opening of his hole so as to partly close it; then he sidled through the narrowed space and pulled the mud down with the walking legs of one side (fig. 4) so as to nearly close the hole. The legs were then withdrawn and dirt was pushed up on the inside so that no aperture was Fig, 3. Uca. pugilator. Males carrying loads from their burrows. In A the fiddler is facing the observer and walking toward the left. He carries his load with the first three legs of the left side. B show:s a male carrying a load away from the observer. left. Fiddlers seemed to feel that the necessity for having their burrows closed when the tide came in was very urgent. Once I pulled up all the grass on a thickly populated area about six feet square and chased all the crabs into their holes; then I sat in front of this open space while the tide came in and cov¬ ered the mou ths of the burrows. Though the crabs were timid, and apparently feared me, several of them rushed out when the water came near, and, after hastily grabbing one or more pel¬ lets of mud, plugged their holes. Other animals that were ob¬ served to be active when the tide came in, and which might have harmed the fiddlers, were ribbon-fish, minnows, green crabs, and prawns. Fiddler-crabs usually fed on the wet beach above the water, and the position of their burrows nearer high than low tide mark, gave them the maximum amount of time for such ac- Pearse — On the Habits of Uca Pugnax. 795 tivity. Many emerged from their burrows and moved down with the edge of the falling tide until the beach dried off ; then they descended into their holes again and waited until it was time to plug them. They usually did not go far from home, but the females wandered about much more than the males. At North Falmouth the beach at low tide was alive with armies of fiddlers that were twenty or Thirty feet from their holes. Where the crabs were most abundant (optimum habitat) the burrows were about five inches deep ; but above high tide mark many of them went down over two feet and there was water in the bot¬ tom. As has been stated, Uca pugnax bred earlier than U. pugila¬ tor. Egg bearing females of the first species were observed Fig. 4. Uca pugilator, closing his burrow by pulling down mud with bis walking legs. from July 4 to July 15. They wandered boldly about over the sand and could be picked out at once by the dark mass of eggs which caused the abdomen to hang down below the body. No females of Uca pugilator ' were observed to be carrying eggs until the first part of August ; the exact date was not noted. These two species of fiddlers present another case like that of Fow¬ ler’s toad and the American toad, which have different breeding seasons, though they commonly occur in the same locality and in the same habitats. The fact that Uca pugnax is darker colored than U. pugilator and usually lives in mud (which would absorb more heat than sand on account of its darker color, and would contain more organic material which would generate heat in decaying) may account for its earlier breeding period. It would be interesting to know whether other animals 796 Wisconsin Academy of Sciences, Arts, and Letters. which live along ocean beaches in both mud and sand breed sooner in the former. Male fiddlers were fighting each other throughout the sum¬ mer (fig. 1), but the chief point of interest in the inter-relations of the crabs was the behavior of the two sexes toward each other. The writer had never before observed fiddlers during the breed¬ ing season and was interested to see whether the males would wave their claws to attract the females, as Alcock (’02) asserts they do. Such waving was observed throughout the summer. None of the males were seen to dance about the females as they do in the Philippines (Pearse, T2) and in India (Alcock, ’92, ’02), though they often lowered themselves on their legs and gave a sort of curtesy when a female approached. Each male stood at the mouth of his own hole when he waved, and, if a fe¬ male approached when he was elsewhere, he went to it, waving on the way. Waving consisted in flourishing the chelipeds up and down (sometimes only the great chela), and the motion was increased by alternately flexing the legs and standing on tiptoe when the chelipeds were down or up. Sometimes a male or two waved when no females were about, but if a, female walked through a well populated region every male, great and small, stood at the mouth of his burrow and honored her by gesticu¬ lating frantically with his claws (fig. 5). If she approached a particular hole the owner either entered with the evident inten- ion of inducing her to follow or he attempted to push her down ahead of him. No male was seen to grasp a female with his great chela or to attempt to use it in any way in his scuffles with her. Alcock (’92, ’02) maintains that the bright colors on the great clawr of the male fiddlers in India “have been acquired in order to attract and please the female.’7 The claws of both the species observed in Massachusetts are dirty white, which makes them conspicuous objects. Yet we must be cautious in assum¬ ing that colors which appear bright to out eyes are also bright when seen by a fiddler. Furthermore, I have noted that the waving of claws is commonly a sign of excitement in crabs in which they are neither remarkably large nor brightly colored (Sesarma, Macrophthaimus). The male fiddler waves his che- Pearse — On the Habits of Uca Pugnax. 797 lipeds to attract the attention of the female, but I am not con¬ vinced that she is pleased or that he has any cognisance that his claw is brightly colored. Females were observed to enter the burrows of males on sev¬ eral occasions, and once a female was watched who coquetted with a male for three quarters of an hour. The last case oc- Fig. 5. Uca puffilator. Waving at mouth of burrow. Drawn from a photograph taken at West Falmouth, Massachusetts. curred on July 11 and the participants in the romance were two Uca pugilators. The male waved and at 12 :17 p. m. the object of his attention approached and went part way into his burrow ; he rushed up and tried to push her in, but she resisted. He then retired three inches and stood motionless for three minutes, with his claws outstretched in front, then sneaked up and again tried to push the female down into his burrow. She again, re¬ sisted, he retired, and both were quiet for two minutes. The 798 Wisconsin Academy of Sciences , Arts, and Letters. male then cautiously approached and stood motionless close to the female with upraised chela for three and a half minutes, and again attempted to push her down but without success. He then raised his claw and standing high on his legs assumed a statuesque pose which he held for ten minutes (I took his pic¬ ture, fig. 6). The female meanwhile fed a little and moved away a couple of inches, then wTent part way down the hole. When the male again approached she dodged, hut came hack again, went into the hole and the male stood over her for more than a minute. She dodged away, again came hack, and the male stood over her again. At ,1'2 :42 he went to one side of Fig. 6. Uca pugilator. Male in courting attitude before a female. Drawn from a photograph taken at West Falmouth, July 11, 1912. the burrow, she to the other, and they stood thus for four min¬ utes. At 12 :46 the female moved away an inch at 12:52 the male dodged quickly into his burrow, and the female hastened up to him, — but a minute later she moved away several feet and went elsewhere. The male, however, was soon consoled, for at 1 :02 he was standing at the mouth of his hole waving frantic¬ ally at a new suitor. At 1 :07 he carried a plug to his doorway and shut himself in. I believe the activities just described were a courtship. The male made no attempt to use his great chela in an offensive way, .as he would have done if a male or an unwelcome female had entered his hole. After his first rush he had every appearance of proceeding with great caution — as if he feared a too arduous wooing might cause his prospective mate to leave. After every Pearse — On the Habits of TJca Pugnax. 799 repulse he retired a little way and displayed his charms for a time before making another advance. Apparently he was attempting, as Chidester (’12) says, “to demonstrate his male- ness.” A little later in the same afternoon a small male Uca pugnax was seen to precede a female into his burrow just before the ris¬ ing tide covered it. Whether copulation takes place in the bur¬ rows or on the surface of the beach I cannot say, for no crabs were seen mating under natural conditions. I dug out a num¬ ber of burrows, but never found more than one crab at a time. High up on the beach there were many males (including the largest in the colony) and very few females; many of the females were carrying eggs. Lower down where the population was densest the two sexes occurred in about equal numbers. On July 12 and 17 I counted the fiddlers on a certain area. On a high, rather open place there were 146 males and 10 females (5 with eggs) ; two feet below (vertical) this there were 62 males and 58 females. When a well populated area was care- ' fully dug over, attempting to get a crab from every hole, 66 males and 61 females (6 with eggs) were turned up on the lower beach; 10 males and 2 females above the high tide mark. From these results it would appear that there were more males than females, as Alcock (’92) believed to be the case in India, but there is a chance for error in the fact that the females are very easy to overlook, whereas a male can not well escape being seen. Despairing of observing the actual mating in the field, I car¬ ried over 125 Uca pugilators into the laboratory at different times and put them in glass tumblers, a male and a female in each. Only about half to three quarters of an inch of sea water was put in each tumbler, for it was found that many of the crabs died when they were completely covered. Under such circumstances I was able to observe five pairs copulating. Twp males were also observed while they were attempting to mate. Neither of them used the great chela, but attempted to climb upon the female and turn her over with the other legs. The position assumed during copulation is shown in figure 7. 800 Wisconsin Academy of Sciences, Arts, and Letters. Though there was some variation in the position of the appen¬ dages, the male’s second legs (those next the chelipeds) were always hugged again the female’s hack, his third pair were be¬ tween the bases of her last two pairs of legs, and his abdomen was inside hers. Two males grasped the eyestalk of their mate with the small cheliped, the other three pressed that appendage on her back as shown in the figure. The great chela, was never pressed against the female, but was supported on the male’s sec¬ ond leg. The time of the different copulations was as follows : Fig. 7. Uca pugilator. A pair copulating. Drawn from life by Miss Barbara Bradley. July 15, 7 :00-7 :10 p. m. ; July 23, 6 :35— 7 :27 p. m. ; July 24, 4:40-4:53 p. m. ; July 29, 8 :35-9 :1'0 pi. m. ; July 30, 8 :38-9 :10 p. m. In no case was the entire process observed ; either the pair were already clasped when discovered or they were inter¬ rupted before they had finished. It will be observed that copu¬ lation took place in the afternoon or evening, but this may have been due simply to the quiet in the laboratory building at such time. All the females observed in copulation were “hard shells,” hence mating in fiddlers does not follow ecdysis as in some crabs. Summary. 1. Uca pugnax usually occurs on mud or clay bottoms; U. pugilator is commonly found where the beach is sandy. 2. The females of U. pugnax were carrying eggs during the Pearse — On the Habits of Uca Pugnax. 801 early part of July; U. pugilator was copulating during the lat¬ ter part of July. 3. High up on the beach the fiddler population is mostly males ; lower down the sexes occur in approximately equal num¬ bers. 4. Fiddlers usually close their burrows when the tide comes in and use two methods. On a hard bottom they pull a round piece of earth down over themselves ; on a soft bottom they plaster up the opening somewhat, then enter the burrow, and, after pulling the mud down with the legs, push up material from below. 5. Male fiddlers try to induce females to come to them by waving their chelipeds, and then try to make them enter their burrows. 6. Male fiddlers use the great chela as a weapon for combat and defense, and as a signal to attract the females. They do not use it as a stopper to their burrows, nor to dig, nor as a “nuptial couch” during copulation. BIBLIOGRAPHY. Alcock, A. 1892. On the Habits of Gelasimus annulipes. Edw. Ann. & Mag. of Hat. Hist., (6) 10: 415-416. 1902. A naturalist in Indian Seas, xxiv + 289 pp., 1 map. Oalman, W. T. 1911. The Life of Crustacea. Hew York, xvii & 289 pp. Chidester, F. E. 1912. The Miating Habits of Four Species of Brachyura. Biol. Bull., 21 : 235-248. Pearse, A. S. 19,12. The Habits of Fiddler Crabs. Philippine Journal Sci., (2, D), 802 Wisconsin Academy of Sciences , Arts, and Letters. Smith, G-. and Welden, W. F. R. 1909. Crustacea. Cambr. JSTat. Hist. 4: 1-217. Stebbing, T. R. R, 1893. A History of Crustacea. Recent Malaoostraca. Hew York, xvii + 466 pp. Juday — A New Species of Diaptomus. 803 A NEW SPECIES OF DIAPTOMUS. By Chancey Juday. On January 30 and February 1, 1910, some plankton ma¬ terial was collected from pools in the vicinity of Puerto Barrios and Los Amates, Guatemala. Among the copepods found in the collections is a species of Diaptomus which has not been de¬ scribed hitherto. The species is named in honor of Doctor C. Dwight Marsh in recognition of his valuable work on the North American forms of this genus. Diaptomus marslii n. sp. Male. The cephalothorax is bluntly cone-shaped anteriorly; it is widest in the middle. The first segment is about as long as the three following ones; the last thoracic segment does not have any lateral lobes but has a small spine on either side about the middle of the posterior margin. The abdomen is elongated and slender, consisting of five seg¬ ments besides the furcae. The first segment is short and broader than the others; the second is the longest of the five. The fourth is asymmetrical, the left side being a little shorter than the right; the fifth likewise is asymmetrical, the left side being a little longer than the right. The f ureal joints are about two-thirds as long as the second segment. The antennae scarcely reach the anterior ends of the furcal rami. The right one is modified for a grasping organ. The antepenultimate segment of the right antenna of one specimen bears a prominent curved process, but no trace of such a struc¬ ture appears on any others (about twenty in all). 804 Wisconsin Academy of Sciences , Arts, and Letters. The spines on the first basal segments of the fifth feet (fig. 1) are moderately long and slender. The second segment of the right foot is a little longer than wide; the lateral hair is of moderate length and situated on the distal third; there is a blunt, tooth-like process on the anterior surface near the inner margin. The first segment of the right exopodite is short and broad and ends in a blunt process at the outer distal angle; there are two tooth-like processes on the posterior surface near the inner distal angle, the proximal one being the larger. The Fig. 1. Fifth foot of male. X 190. Fig. 2. Fifth foot of female. second segment is elongated, with an obtuse angle near the mid¬ dle of the outer margin; the lateral spine originates just beyond the angle and it is long, curved, and bears from three to six teeth on its inner margin; the terminal hook is- long, slender, and curved. The right endopodite is roughly triangular in out¬ line, about as long as the inner margin of the first joint of the exopodite ; it is ciliated on the inner margin toward the apex. The second basal segment of the left foot is about one and a third times as long as wide; the lateral hair on the outer margin is about a quarter of the distance from the distal end. The first joint of the left exopodite is a little longer than wide and is setose on the inner margin. The second joint has a ciliated pad on its inner margin and is terminated with a finger-like Juday — A New Species of Daiptomus. 805 process; it bears a rather long, slender spine on the posterior surface toward the distal end. The left endopodite is elongated, reaching beyond the first segment of the exopodite ; the outer end is pointed ; there is a conspicuous cilium beyond the middle of the inner margin and small cilia thence toward the end. Length of cephalothorax 0.78 to 0.81 mm. ; width of cephalo- thorax 0.28 to 0.30 mm. ; total length 1.1 to 1.15 mm. Female. The cephalothorax is widest about one-third the dis¬ tance from the anterior end ; the anterior third gradually tapers forward, being cone-shaped in outline. The first segment is about as long as the three following. The last thoracic segment has a lobe on either side, each of which bears a small lateral and a small dorsal spine. The first segment of the abdomen equals in length the three following ones; it is slightly expanded about one-third the dis¬ tance from the anterior end and bears a small spine on either side at this point ; the narrowest diameter is situated about the middle. The second segment is very short; the third is slightly longer than the f ureal joints. The antennae reach a little beyond the middle of the furcal setae. The first basal segment of the fifth feet (fig. 2) bears a rather long spine on the dorsal side. The exopodite consists of three segments, the first being nearly three times as long as wide. The hook of the second segment is long and slender and only slightly curved ; toward the outer end it is finely ciliate both on the inner and outer surfaces. The outer margin of this joint bears a small spine. The third segment is small and bears a rather long spine. The endopodite is one- jointed and about two-thirds as long as the first joint of the exopodite; it bears a spine-like cilium on the inner margin toward the distal end and another at the end ; between these are small cilia. Length of cephalothorax 1.03 to 1.05 mm. ; width of cephalo¬ thorax 0.38 to 0.41 mm. ; total length 1.40 to 1.44 mm. 806 Wisconsin Academy of Sciences, Arts, and Letters . A LIST OF FUNGI, CHIEFLY SAPROPHYTES, FROM THE REGION OF KEWAUNEE COUNTY, WISCONSIN. Bernard O. Dodge. The following list of fungi collected mainly in Kewaunee County, Wisconsin, is based on specimens collected from 1904 to 1908. The mycological bora of this region has not been hitherto investigated, and this list forms a contribution to the fungus flora of the state. Kewaunee County, lying as it does in the glaciated area along the shore of Lake Michigan in the northeastern part of the state, has a somewhat different flora from that prevailing in Juneau County -where several of the collections noted here were made. The glacial moraines rise perhaps a hundred feet above the lake level and, where wooded, are well covered with groves of maple and beech. The low or swampy areas between the moraines are especially characterized by their dense growths of white cedar, black ash, and alder. “Blahnik’s woods” is one of the many places in this vicinity where one passes quickly from the pastured hardwood groves down through the tamarack, hem¬ lock, and cedar into the alders and finally out into the heath swamps. Oak, which is so common in Juneau County, is no longer found in the vicinity of Algoma, although it is fairly common at Bed Biver, Little Sturgeon, and beyond Kohlberg. The wild hay marshes along the Ahnapee river are especially favorable for collecting JBoleti in October and November. Even in the driest seasons, species of Discomycetes are plentiful in “Perry’s swamp” or in the “black ash swamp” when few fungi are to be found elsewhere. Following the cow paths or “wood Dodge — Fungi from the Region of Kewaunee Co Wis. 807 roads/* one can take for example a trip of about five miles around Ifrohns’ Lake and pass through a region rich in species of fungi and other plants. Near McDonald’s boat-house the growth of cedar which elsewhere borders the lake is replaced by a strip of “bottom lands” with rich, black soil and here and there a clump of alder or birch. As the ground rises abruptly, the usual fringe of hard woods is found. In this undisturbed region the old trunks of hemlock and cedar lie strewn all about and are in just the state of decay for the growth of fleshy fungi. At the head of the lake one comes to the more open swamp lands with Chara, Drosera , Sarracenia, Conocephalus and species of heath. Beyond this is found a stand of tamarack, and finally the large woods, the “Otto’s woods” frequently mentioned in these notes. To aid in further critical study of the fungi of Wisconsin, to indicate variations, and to assist in the identification of the species, I have included certain field notes made at the time of collection, and references to descriptions and figures which rep¬ resent especially well the forms as found here, or which differ characteristically from these forms. Specimens of the species listed have been placed in the herbaria of the University of Wisconsin and the New York Botanical Garden. The work of listing the Wisconsin fungi was begun by Bundy (Geology of Wisconsin, 1876). This list is widely quoted but cannot be regarded as reliable, and the author left neither de¬ scriptions nor specimens. Trelease (Trans. Wis. Acad. Sci., 6: 106-144) in 1886 published a list of 286 parasitic fungi of Wisconsin. The first work of describing the species of fleshy fungi of the state was done by Trelease in 1889 in a bulletin ora the morels and puff-balls of Madison (Trans. Wis. Acad. Sci.? 7: 105-120). Davis (Trans. Wis. Acad. Sci., 9: 154—188 ; 11: 165-178 ; 14:83-106 ; 16 : 739-772) has continued the work of listing the parasitic fungi, so that we have now over 600 species authentically reported for the state. Another list of the higher fungi was prepared 'for Milwaukee County bv Brown and Fernekes (Trans. Wis. Nat. Hist. Soc., 1902). Denniston has published descriptions of about twenty species of the genus 808 Wisconsin Academy of Sciences , Arts, and Letters. Eussula occurring in the vicinity of Madison (Trans. Wis. Acad. Sci., 15 : 71-88, 1905). The species of the Tremellineae of the state have been carefully worked out by Gilbert (Trans. Wis. Acad. Sci. 16: 1138-1911) and about twenty species have been described and illustrated. His monograph includes de¬ scriptions of several new species and varieties, with keys to the genera and species, and a list of the synonyms of the species. ' If to the species mentioned in the above cited lists we add about 100 species reported for various collectors by Lloyd, Peck, and Rehm, we shall have about 1200 species reported from Wisconsin. The following list includes 440 species of fungi from Kewau¬ nee County and 40 additional species from Juneau and Dane Counties. These 40 species were not found in Kewaunee County and are included here either because of their rarity in America, or because of their wide distribution throughout the country and their rarity in Kewaunee County. Clitocybe illa- dens and Lepiota americana , which seem to be widely distri¬ buted and commonly occurring species, were not found in Ke¬ waunee County. Although the people in the vicinity of Algoma are familiar with many species of fungi which they use for food, I was unable to learn of any case of poisoning by mush¬ rooms. This may be due in part to the fact that very few spe¬ cies of Amanita grow in this region. During the most favor¬ able seasons for the growth of mushrooms only one or two speci¬ mens of Amanita phalloides and A. muscaria were found. About ninety species of Diseomycetes were found in this re¬ gion and will be listed in another paper together with the species from other parts of the state. The writer wishes to acknowledge the services of Prof. R. A, Harper in the preparation of this list. Dodge — Fungi from the Begion of Kewaunee Go., Wis. 809 HYMENOMY CETES. AG ARICINE AE . Amanita Frostiana Pk. These specimens differ from the typical forms only in being fully as large as A. Caesarea. Under maple and hemlock, Schmeiling’s grove, August, Algoma. Amanita muscaria Linn. Figures of this species are generally too highly colored to represent our specimens. Coville, U. S. Dept, of Agric., Div. Cir. 13, says, “The brilliant red ones are rarely found here, but the white ones are not infrequent.” June, Foscora; Mile bluff, August, Mauston. Amanita pantherima D. C. Richon, Atlas Champ., PI. 5, fig. 5-8, figures this form with the annulus distant from the pileus, generally below the middle of the stipe. In dry sandy soil under oak. Mile bluff, and in low woodland pastures, July, Mauston. Amanita phalloides Fr. Forms with a greenish pileus with patches of the volva on the surface, as illustrated by Berkeley, Out., PI. 3, fig. 1, occur at Fish Creek. Holland, Atlas Champ., PI. 3, fig. 3, figures the dull gray forms such as are found in Shaw’s woods, September, Fos¬ cora. Amanita recutita Fr. The dark drab color, the tough, tightly stretched skin of the pileus, and the inrolled margin of the volva are well shown in these specimens. Berk. Out., PI. 3, fig. 3, illustrates such forms with no patches of the volva on the pileus. On decayed remains of coniferous log, edge of woods, Swaty’s, August, Algoma. Amanita rufoescens Fr. The red color of the flesh was not very prominent. In open woods, in dry sod, Van Wie’s park, July, Maus¬ ton; Krohn’s Lake, August, Algoma. Amanita verna Bull. The pure white forms said to be a variety of A. 'phalloides are abundant in the Mile Bluff woods. Winnebago In¬ dians who camp here do not eat mushrooms and avoid even touching this species. June to August, Mauston. Rare at Algoma. Amanitopsis fulva Schaeff. This species seems to have perfectly constant characters, although it may often grow in the same locality with A. vaginata. The pileus is tawny or golden-buff, usually with a few large, thick warts which fall off as the pileus opens. The stem is richly colored like the pileus and becomes rough from splitting. A distinct trace of a fuzzy annulus appears in the youngest forms. Specimens collected in this stage will grow several centimeters before drying and are very sensitive to geotropic stimuli. Schaeff., leones, Pi. 95, and E. Michael, Fue'hr. Pilz., PI. 96, represent these forms very well. Van Wie’s park, July, Mauston; Krohn’s Lake, August, Algoma. 810 Wisconsin Academy of Sciences, Arts, and Letters. Amanitopsis vaginata Bull. Common in open woods, Mile Bluff, June, Mauston; rare in Blahnik’s grove, August, Algoma, Lepiota asperata Berk. On the ground, Otto’s woods, September, Algoma. Lepiota asperula Atk. This species seems to be similar to the preceding except that the brown pointed scales do not form concentric rings on the pileus, and the stem is white. Schmeiling’s grove, Au¬ gust, Algoma. Lepiota clypeolaria Bull. Richon, Atlas Champ., PI. 21, figs. 1-3 . illustrates these forms wTell. On low ground, Melchior’s woods, Octo¬ ber, Algoma. Lepiota* cristata A. & S. On the ground in rich open woods, Shaw’s, August, Algoma. liepiota Friesii Lasch. These specimens have rough brown warts on the lower side of the annulus which is clothed above with a mass of cottony fibres. The chlorine odor is strong in young plants. On the ground among moss and leaves, Blahnik’s grove, July, Algoma. Lepiota meleagris Sow. On the ground under maple, Belgian settlement, September, Rosiere. Lepiota naucina Fr. On lawrns and along margins of woods, Aug¬ ust and September, Algoma. Lepiota procera Scop. Very common along roadsides and in maple woods, September, Rosiere. Armillaria mellea Vahl. This is one of the most common autumn mushrooms at Algoma, the species most relied on as a source of win¬ ter food supply among the Bohemians. The species is variable as to size, color, character of the annulus and edible qualities. Aborted forms are common. On stumps and fallen timber, Decker’s, Septem¬ ber, Casco; Nelson’s woods, July, Mauston. Tricholoma album (Schaeff.) Fr. On wood-strewn earth, Hale’s hill, June, Mauston; Otto’s woods, July, Algoma. Tricholoma equestre L. Specimens differ from T. sejunctum only in having yellow gills. Richon, Atlas Champ., PI. 32, figs. 1-4, repre¬ sents these forms. Rolland, Atlas Champ., PI. 15, fig. 2k, figures a form with a yellow stipe, while ours have a white stipe. On the ground, Danek’s woods, September, Algoma. Tricholoma grammopodium Bull. Bulliard, Hist. Champ., PI. 585, and Hussey, Illust., PI. kl, illustrate the large specimens. Common, Fluno’s bluff under oak, June, Mauston; along roadsides, June, Fosco'ra. Tricholoma personatum Fr. Commonly gathered for food at Al¬ goma as it is easily recognized by the lilac color and bulbous stipe. Schmeiling’s grove, Algoma; Awe’s, September, Foscora. Tricholoma rutilans Schaeff. Clusters gathered from pine stumps had yellow gills and stipes, as figured by Rolland, Atlas Champ., PI. 18. Bodge — Fungi from the Region of Kewaunee Co., Wis. 811 fig. 22. Solitary specimens from hemlock logs had whitish gills and the stipes were spotted purple, as figured by Cooke, Illust., PI. 8, and Lucand, Champ. Fr., PI. 54. Mile Bluff, June, Mauston; Krohn’s Lake, August, Algoma. Clitocybe amethystina Bolt. The whole plant is deep purplish amethyst in the young forms. When old, the caps generally fade to gray but the gills retain their color. This species is quite distinct from C. laccata. On the ground in open woods, Stewart’s pasture, June, Mauston; Perry’s woods, July, Algoma. Clitocybe cerussata Fr. On leaves, Otto’s woods, August, Algoma. Clitocybe ciavipes (Pers.) Fr. On the ground, Runke’s woods, Kodan, October. Clitocybe compressipes Pk. In this species the pileus is 2-5 cm. broad, yellowish to light brown, plane or depressed, with or without zones. The plants usually grow in twos or threes; occasionally clus¬ ters of about twenty plants were found in pastures. Lone Rock, June, Mauston. Clitocybe connexa Pk. The pale sky-blue colors are not visible except at close range. . On the ground in low woods under maple and beech, August, Algoma. Clitocybe cyathiformis Fr. These forms are well illustrated by Cooke, Illust., PI. 113 ; Sow., Eng. Fung. PI. 363 ; Bull., Herb. Franc., PI. 375. Krohn’s Lake, August, Algoma. Clitocybe eccexitrica Pk. The stipe is only slightly eccentric in our specimens. The base is coarsely strigose. On pieces of decayed wood and among leaves, Krohn’s lake, August, Algoma. Peck vid. Clitocybe ectypoides Pk. The pileus is plainly marked by black¬ ish lines of closely appressed hairs branching dichotomously five or six times from the center to the margin. The gills are narrow and distant, not close, as described by Peck, Bull. Torrey Club, 25:821, 1898. Abundant on the ground, Krohn’s Lake, August, Algoma. Peck vid. Clitocybe gigantea Sow. This species differs from C. maxima in ' having a much shorter and thicker stipe. The differences are figured by Cooke, Illust., Pis. 106, 135. On the ground, Blahnik’s grove, July, Aleroma. Clitocybe gilva Pers. The specimens dry well, retaining the char¬ acteristic yellow colors. The odor is strong, not unpleasant. October, Foscora. Clitocybe illudens Schw. Very common in dense clusters on fallen timber and in clover fields, on roots and stumps in newly tilled ground, C. Remington farm, July, Mauston. Rare at Algoma. Clitocybe infimdibuliformis Schaeff. On the ground among leaves, Awe’s, August, Foscora. 812 Wisconsin Academy of Sciences, Arts, and Letters. CUtocybe inversus Scop. This species closely resembles the last, from which it is here distinguished by the reddish color of the gills and the smaller, more globose spores. Lanzi, Funghi Roma, PI. 95, fig. 3, gives a good figure of these forms. On the ground. Tornado, August, Kohlberg. Clitocybe laccata Scop. Common on the ground in woods, early and late. Mile Bluff, June, Mauston; Melchior’s, November, Algoma. Clitocybe maxima Gaert. & Meyer. The pileus grows to be 25 cm. broad and the stipe 20 cm. high. Such forms are figured by Cooke, Illust., Pi. 135. Under dense growth of young oak and pine, Dodge’s, Crossville, near Mauston. Clitocybe multiceps Pk. Clusters growing in the woods are more slender than those found along street curbing. Insects do not seem to infect the plants and they remain several days in a fresh condition after being gathered. August, Fish Creek. Clitocybe socialis Fr. In Sphagnum swamps with Boletinus palus - ter, Blahnik’s, November, Algoma. Collybia acervata Fr. The shining stems are dark brown, four or five being bound together at the base by a mass of felt-like hairs. On decayed wood, Warner”s grove, September, Algoma. Peck vid. Collybia confiuens Pers. Among leaves, Krohn’s lake, August, Algoma. Peck vid. Collybia dryophila (Bull.) Fr. The species is variable as to form and color. The commonest form is figured by Holland, Atlas Champ., PI. 48, fig. 102, Some specimens have white gills and greasy, hygro- phanous caps. These might be called C. butyracea. Cf. Cooke, Illust., PI. 143. On the ground among leaves, and cespitose near old logs, August, Foscora; Krohn’s Lake, Algoma. Collybia fusipes Fr. The most characteristic features of the spe¬ cies are the ventricose stipe and the manner in which the gills pull aw'ay from the stem in groups attached to a collar. This is well shown by Buliiard, Hist. Champ., Pis. 36 and 106, p. 612; Paul., Icon. Champ., PI 50 figs. 1. 2; Bolt., Hist. Fung., PI. 129. Most other figures show much longer stems which taper downward several inches. Tim- ble’s woods, October. Algoma. Collybia lacunosa Pk. Specimens o.5— 2 cm. broad, 2-4 cm. high, golden yellow throughout with the exception of the whitish gills, were found frequently on coniferous logs. The plants dry with little loss of color or form. The species is rather tough for one of this genus. Specimens at the New York Botanical Garden, very similar to ours, having the same scabrous stipe, have bden called Omphalia scabriuscula Pk. Krohn’s Lake, August, Algoma. Peck vid. Collybia laxipes Fr. This is a slender, symmetrical little plant with a velvet-coated stipe and flesh-colored pileus which is viscid in Dodge — Fungi from the Region of Kewaunee Co., Y\7is. 813 moist weather. Very similar forms are figured by Cooke, Illust., PI. 191 B; Gillet, Champ. Fr. Common in wet we'ather, July, Perry's woods, Algoma. CoHybia myriadophylla Pk. The gills are very close together, of fine texture and of delicate lilac color which turns brown in drying. Hard, Mushrooms, p. 115, fig. 85, gives a good figure. On old logs, Schmeiling’s, July, Algoma. CoHybia platyphylla Fr. Common in all woods. Krohn’s Lake, June, Algoma; Lone Rock, Mauston. Collybia radicata Rehl. Common in wmods near stumps, Heuer’s, August, Algoma; in a cistern, November, Algoma. Collybia radicata furfuracea Pk. On account of the furfuraceous coat of the pileus and stipe, some of these specimens, 10-14 cm. broad and 44-55 cm. high, might be referred to this variety. The outer layer of the stipe is much checked and cracked. Krohn’s Lake, August, Algoma. Collybia velufipes Curt. On logs and stumps all seasons of the year, March to January, Algoma. Collybia zonata Pk. On hemlock logs, Krohn’s Lake, Algoma, August. Mycena acicula Schaeff. Fries, leones, PI. 85, fig. 3, gives a good illustration of this brilliantly colored little fungus. Otto’s woods, Au¬ gust, Algoma. Mycena alcalma Fr. Otto’s woods, August, Algoma. Mycena capillaris Schum. This form is pure white throughout, 1-2 mm. broad, with a thread-like stem. On old bark among leaves, Perry’s Swamp, July, Algoma; campus woods, June, Madison. Mycena corticola Fr. On old stub in pasture lands, Detjen’s, April, Algoma. Mycena cyanothrix Atk. Nelson’s woods, July, Mauston. Mycena epipterygia Scop. In these forms the pileus is pinkish at the apex and grayish at the margin. On leaf mould, Schmeiling’s, August, Algoma. Mycena galericulata Scop. Common on old stumps, Detjen’s, May, Algoma. Mycena. haematopa Pers. On old logs, Fluno’s bluff, July, Maus¬ ton; Devine’s vmods, August, Algoma. Mycena Leaiana Berk. The whole plant is deep salmon color. Cespitose on stumps and logs, Otto’s woods, June, Algoma. Mycena polygramma Bull. Schmeiling’s grove, July, Algoma; Fluno’s woods, July, Mauston; cemetery woods, June, Madison. Mycena puna Pers. A number of cespitose specimens growing in dense shade had perfectly white stems and gills, with the typical pink¬ ish, purple, or lilac caps. The more common forms are lilac colored 814 Wisconsin Academy of Sciences, Arts, and Letters. throughout, the gills becoming ochraceous with age. Such plants are- figured by Rolland, Atlas Champ., PI. 52, fig. 113. Perry’s woods, Aug¬ ust, Algoma. Mycena rugosa Fr. On decayed logs, Melchior’s woods, Novem¬ ber, Algoma. Mycena succosa Pk. On coniferous logs, Krohn’s Lake, Septem¬ ber, Algoma. Omphalia campanella Batsch. On logs, May to September, Maus- ton, Kilbourn and Algoma. Omphalia epichysium Pers. The pileus is funnel shaped, smoky- gray, 2-3 cm. broad. Krohn’s lake, Dvorak’s, August, Algoma. Pleurotus applicatus Batsch. On wood, Schmeiling’s woods, Aug¬ ust, Algoma. Pleurotus angustatus Berk. On decayed logs and stumps,, Schmeiling’s swamp, June, Algoma. Pleurotus cornucopioides Fr. The gills form ridges running down the stem, which is roughly strigose at the base. The spores are lilac- colored in mass as are those of P. sapidus. Figures by Paulet, Icon. Champ., PI. 28, and Boudier, leones Mycol., no. 374, resemble our forms. On stumps and logs, Otto’s woods, August and September, Algoma. Pleurotus dryinus Fr. On logs, Devine’s woods, September, Al¬ goma. Pleurotus ostreatus (Jacq.) Fr. The spores are pure white in mass. Hussey, Illust., PL, 19, may be considered typical for our forms. On maple logs, September, Casco. Pleurotus petaloides Bull. On decayed wood among moss, Otto’s woods, May, Algoma. Pleurotus porrigens Pers. This species may become 2-3 cm. broad without having any indication of gills. At this stage they re¬ semble white discomycetes. On decayed logs, Devine’s woods, August, Algoma. Peck vid. Pleurotus sapidus Kalch. Common on logs, Fish Creek; Heuer’s woods, September, Algoma. Pleurotus serotinus Schaeff. On limbs and logs, September, Fos- cora. Hygrophorus Bresadolae Quel. In all of the young specimens there is a distinct veil which forms an annulus which disappears as the plant becomes fully expanded. Peck’s description and figure of H. speciosus Pk., Rep. Mus. 53, PI. 51, well represent this form, ex¬ cept as to the annulus. Bresadola, Fung. Mang., PI. 9, shows a rather permanent ring, but his figures seem to be of only partially expanded plants. Under tamarack along the Ahnapee river, October, Algoma. Bresadola vid. Dodge — Fungi from the Region of Kewaunee Co., Wis. 815 Hygrophorus cantharellus Schw. Among decayed leaves and ■wood, Krohn’s Lake, August, Algoma. Hygrophorus chlorophanus Fr. On ground in damp places, Blah¬ nik’s swamp, July, Algoma; June, Blue Mounds. Hygrophorus coccineus (Schaeff.) Fr. In grass under maple, Schmeiling’s woods, August, Algoma. Hygrophorus conicus (Scop.) Fr. The viscid conical caps are often greenish black when growing. On the ground, Fish Creek; Schmeiling’s woods, August, Algoma. Hygrophorus eburneus (Bull.) Fr. The pileus is shining white from the slimy substance that covers it in wet weather. The gills, which are at first pure white, become cinnamon brown in drying. September, Foscora; Schmeiling’s woods, Algoma. Hygrophorus hypo the jus Fr. Gillet, Champ. France, figures a plant which represents this form. The pileus is olivaceous and is cov¬ ered with a bluish sticky slime. The flesh becomes rose-colored in drying or decaying. Boudier, leones My col., PI. 33, no. 2^0, shows the characteristic crooked stipe. Under leaves, Blahnik’s grove, August, Algoma. Hygrophorus psittacinus Fr. The flesh is thin, so that the gills show through the pileus. Boudier, leones Mycol., PI. If2, represents the forms considerably larger. Under tamarack, Danek’s woods, Sep¬ tember, Algoma. Hygrophorus pratensis Fr. Common on grassy knolls near Blah¬ nik’s woods, October and November, Algoma. Hygrophorus puniceus Fr. Some forms of the plant resemble H. 'corncus except that the reddish-yellow to scarlet colors are well re¬ tained in drying. Schmeiling’s grove, August, Algoma. Lactarius deliciosus Fr. The large forms are not as highly col¬ ored as usually figured for the species. Common in Otto’s woods, Aug¬ ust, Algoma. At Fish Creek the typical forms are occasionally found. Lactarius griseus Pk. Devine’s swamp and Perry’s woods, Sep¬ tember, Algoma. Lactarius hygrophoroides B. & C. On the ground, Blahnik’s woods, September, Algoma. Lactarius indigo Schw. This is a rare species at Algoma, only one well characterized specimen having been found. September, Shaw’s woods, Foscora. Lactarius pergamenus Fr. In open woods, August, Algoma. Lactarius piperatus Fr. Abundant in pastured woods, Schmeil¬ ing’s, August, Algoma; Fluno’s Bluff, July, Mauston. Lactarius scrohiculatus Scop. This is a very large and coarse Lactarius. The cap is covered with coarse, glutinous hairs, especially at the margin. In wet weather the pileus has two or three watery 816 Wisconsin Academy of Sciences , Arts , and Letters. zones. The milk is white, soon changing to greenish yellow, and is not strongly acrid. The pittied stipe and coarse hairs are well shown by Krombh., Schwam. PI. 58, fig's. 1-6. Specimens found in ope'n places are nearly white, those in deep woods are yellowish. Schmeil- ing’s woods, August, Algoma. Lactarius subdulcis Fr. Cooke, Illust., PI. 1002, figures the forms which grow abundantly in Riverside swamp, October, Algoma. Lactarius torminosus Schaeff. Fresh plants are nearly white; the reddish zones of the pileus are seen only when the flesh is broken or the plants are dry. Rolland, Atlas Champ., PI. 33, fig. 63, illustrates characteristic specimens. Frequently found to be parasitized by Hy~ pomyces. Common in Blahnik’s woods, September, Algoma. Lactarius trivialis Fr. The quantity of milk in the species is variable. During dry weather large specimens growing in sandy soil contained only slight amounts. Mile bluff, June, Mauston. Lactarius vellereus Fr. This species grows in dense clusters in old roads. Most plants have a stipe only 4-5 cm. long, with pileus 10- 14 cm. broad. Boudier, leones Mycol., PI. 49, no. J7, figures such forms, except that there are no red spots on the gills and the pileus is more tomentose. Blahnik’s woods, August, Algoma. Lactarius volemus Fr. On the ground in wet places, Krohn’s lake and Blahnik’s woods, September, Algoma. Lactarius zonarius (Bull.) Fr. Specimens of this species grow to be 20 cm. across and when dry show 5-15 distinct zones, which in fresh plants are watery rings in the flesh. The milk is white, slightly acrid, with no change of color. The spores are white. The flesh is firm and free from larvae. Quantities were cooked and found tough and of a strong flavor but not poisonous. There is just such a ten¬ dency for the plants to grow in pairs as is figured by Bulliard, Herb. Fr., PL 104 ■ Abundant under white cedar in extremely dry weather when other gilled mushrooms were scarce. Dewey’s spring, August, Algoma. Peck vid. Russula adusta Fr. Mile Bluff, June, Mauston; Otto’s woods, August, Algoma. Russula alutacea Fr. Ihlenfeld’s woods, August, Algoma. Russula atropurpurea Pk. Schmeiling’s grove, August, Algoma; Mile Bluff, June, Mauston. Russula citiina Fr. On decayed logs and on wood strewn earth,. Blahnik’s swamp, August, Algoma. Russula decolorans Fr. On decayed logs, August, Algoma. Peck. vid. Russula delica Fr. Shaw’s woods, August, Algoma; Mile Bluff, August, Mauston. Dodge — Fungi from the Region of Kewaunee Co., Wis. 817 Russula emetica Fr. Our forms are exceedingly large for the species, 10 cm. broad and 12 cm. high. The plants are fragile and the flesh very peppery, but they are edible when cooked. Shaw’s swamp, September, Foscora; Stewart’s pasture swamp, July, Mauston. Kussula foetens Pers. Chadwick’s woods, July, Mauston; com¬ mon in Blahnik’s woods in August, Algoma. Kussula fragilis Pers. This species seems to be similar in color and taste to R. emetica, but the flesh is white under the pellicle and the plants are much smaller. Roadsides near Little Sturgeon, August. Kussula integra Fr. Mile Bluff, August, Mauston; Tornado, Sep¬ tember, Rosiere. Kussula nigricans Fr. Fluno’s woods, August, Mauston. Kussula olivacea Fr. Van Wie’s Park, August, Mauston. Russula roseipes (Seer.) Bres. Mile Bluff, July, Mauston. Kussula sordida Pk. Under coniferous trees, July, Fluno’s Bluff, Mauston. Kussula virescens (Schaeff.) Fr. Ihlenfeld’s woods, September; Mile Bluff, June, Mauston. Cantharellus aurantiacus Fr. The color varies from bright or¬ ange, when growing on the ground in open places, to brown, when growing on hemlock logs. Abundant in Danek’s woods, August, and at Krohn’s Lake, September, Algoma. Cantharellus brevipes Pk. Under oak, Tornado, September, Kohl- berg. Cantharellus cibarius Fr. The apricot odor is present in the Al¬ goma specimens. Common at Mile Bluff, August, Mauston. Cantharellus ciimabarinus Schw. The cinnabar color of the ex¬ terior is in striking contrast to the pure white flesh. Devine’s woods, August, Algoma. Cantharellus mfundibuliformis Scop. Mile Bluff, June, Mauston. Cantharellus minor Pk. The plants are scarcely 2 cm. high and 1 cm. broad. They are yellowish-orange, turning brown in drying. Detjen’s pasture in open grove, September, Algoma. Myctalis asterophora Fr. On Russula nigricans, Fluno’s Bluff, August, Mauston. Marasmius minutus Pk. The pilei were densely covered with rough spherical spores of some parasitic fungus. Each pileus has about four or five gills. On decayed leaves in damp places in Perry’s alder swamp, August, Algoma. Peck vid. Marasmius coherens (Fr.) Bres. Growing in dense cluster under alder, Algoma swamp. Marasmius oreades Fr. This species is rare at Algoma. In grassy spots along roadsides, September. 818 Wisconsin Academy of Sciences, Arts, and Letters. Marasmius perforans Fr. On hemlock leaves, Blahnik’s woods, September, Algoma. Marasmius rotula Scop. Common on bark and decayed wood, Warner’s grove, September, Algoma. Marasmius siccus Sckw. Among decayed leaves, Devine’s woods, August, Algoma. Marasmius urens Fr. Fluno’s woods, July, Mauston. Lentinus cochleatus Fr. This species grows in dense clusters at the bases of stumps. Schmeiling’s woods and Krohn’s Lake, September, Algoma. Lentinus Lecomtei Fr. (Panus rudis Fr.) On logs and stumps Fluno’s woods, June, Mauston; Blahnik’s grove, September, Algoma. Lentinus iepideus Fr. On docks and ties, and on roofs of houses, July, Algoma. Lentinus spretus Pk. These specimens were wrell dried when found. They are 6-14 cm. broad. The surface of the pileus is cracked, forming brownish scales. The center is entire, depressed or raised. The gills are 1 cm. broad and decurrent. The stipe is very slender in proportion to the size of the pileus, tapers downward, is solid, tough and covered with brownish scales. Three of four plants were joined together at the base of the stipe. On old saw-mill timbers, July, Cross- ville, near Mauston. Lentinus vulpinus Fr. On maple stumps, Belgian settlement, August, Rosiere. Panus conchatus Fr. Sessile forms with the twisted, shell-shaped pileus are figured by Bulliard, Hist. Champ., PI. 298. We also have such forms as are shown by Cooke, Illust., PI. 1149, Schaeff., leones Fung., PI. JfS, 44- Krombh., Schwam. PL 4%, fiQs. 1 2, best represent the forms that seem to run over to P. torulosus. On stumps, Blahnik’s grove, September, Algoma. Panus stipticus (Bull.) Fr. On stumps and fallen timber, Oc¬ tober, Casco. Panus torulosus Fr. This plant has a violet colored pileus and stipe as figured by Bolton, Hist. Fung., PI. 146. The gills are ame¬ thyst colored in all young specimens, the flesh is white and thick. On stumps, Otto’s woods, July to September, Algoma. Trogia crispa (Pers.) Fr. The specimens collected from tama¬ rack in December showed a reddish color at the point of attachment when bruised, but this change of color does not seem to be present in plants in the growing season. Perry’s swamp, Algoma. Schizophyllum commune Fr. Common on old limbs, Devine’s woods, June to August, Algoma. Lenzites betulina Fr. Common on birch and poplar, Devine’s woods, September, Algoma. Dodge — Fungi from the Region of Keivaunee Co., Wis. 819 Lenzites sepiaria Fr. Resupinate forms sometimes have thick gills. On tamarack stumps, Detjen’s woods, May to October, Algoma. Lenzites variegata Fr. This species seems to be very closely al¬ lied to L. betulina and may be only a variety. The pileus is sulcate and beautifully zoned. The gills are thick and have a tendency to form pores. Some forms are resupinate. Abundant on stumps of frondose trees, October, Casco. Lenzites vialis Pk. Pores of young specimens are whitish-lilac and pruinose. On old rails near Catholic church, April, Algoma. Volvaria bombycina (Pers. ) Fr. On maple log, Krohn’s Lake, August, Algoma. Volvaria pusilla Pers. A typical specimen of this species was found among leaves in damp woods, although it is usually reported as growing among weeds in gardens. Krohn’s Lake, August, Algoma. Volvaria speciosa Fr. A large number of fine plants appeared in potato fields in June, 1805, none was found during the four succeeding years. The species was found however in Sept. 1912, Algoma. Pluteus cervinus Schaeff. The forms growing in saw-dust are frequently 20 cm. broad. Several varieties of this species have been found on logs and stumps. It is difficult to distinguish any constant characteristics for them. Common, June to September, Algoma and Mauston. Pluteus granularis Pk. On logs, Schmeiling’s, July, Algoma. Entoloma clypeatum L. On the ground, Detjen’s woods, May, Algoma. Entoloma jubatum Fr. Common in open woods, Blahnik’s, July, Algoma. Entoloma rhodopolium Fr. The gills are not adnate to the stem. They barely reach the stem in large specimens and seldom show marks of breaking away from it. One fairly constant character is the abrupt bend at the base of the stem. Abundant in Otto’s woods, June, Algoma; in mulching under hedges, June, Madison. Entoloma strictius Pk. The pileus has a sharp umbo in all of these plants. The stipe is tall, straight and slender. Peck and others have reported the species as growing in autumn and we find what ap¬ pears to be the same species in May and June, Schmeiling’s woods, Algoma. Clitopilus abortivus B. & C. Dried plants have retained a very strong, pleasant, mealy odor. No aborted forms have been seen. Shaw’s sphagnum swamp, August, Foscora. Clitopilus popinalis Fr. Bresadola considers C. noveboracensis Pk. a synonym for this species. Young plants have oblong hygro- phanous spots arranged somewhat concentrically on the pileus. The whole pileus becomes greasy hygrophanous in old age. Although a 820 Wisconsin Academy of Sciences , Arts , and Letters. large number of specimens were set for spore prints, we were unable to obtain spores enough to determine the color in mass. Even when thoroughly cooked, the plants are strong and unpalatable. Devine’s woods, August, Algoma. Bresadola vid. Clitopihis prunulus Scop. Well illustrated by E. Michael, Fuehr. Pilz., Ao. 52; Richon, Atlas Champ., PI. 36, figs. l~h- On the ground, Danek’s woods, September, Algoma. Leptonia asprella Fr. Among needles and moss under tamarack, Riverside swamp, August, Algoma. Leptonia serrnlata (Pers.) Fr. The gills are whitish, tinged with azure-blue, serrate. The stipe is characteristically marked by rings formed by the cracking of the outer coat. A very delicate species whose distinctive points are destroyed in drying. Perry’s swamp, un¬ der tamarack and white cedar, September, Algoma. Claudopus nidulans Pers. On decayed logs, cemetery woods, June, Madison; Trumble’s woods, July, Mauston; Krohn’s Lake, Aug¬ ust, Algoma. Pholiota adiposa Fr. Well figured by Berkeley, Out., PI. 8, fig. 2, Grows on sides of logs and from decayed spots on living trees. Fel¬ low’s woods, August to October, Foscora. Pholiota aegerita Brigant. The pileus cracks into areas showing the yellow flesh. The spores are brick-red. Solitary, on maple logs. Decker’s saw-mill, September, Casco. Pholiota dura Bolt. The caps are 7—10 cm. broad, deeply cracked. The stipe is solid and elastic. In gardens under rose bushes, June, Algoma. Pholiota margmata Pers. The common forms which grow in woods are figured by Lanzi, Funghi Mang., PI. 76, fig. 2. In lawns and frondose woods, June to August, Algoma. Pholiota squamosa (Muell.) Fr. The foul, heavy odor ascribed to this species by Stevenson, Brit. Fungi, p. 230, was noticed in a single cluster of about twenty plants growing at the base of a maple tree. In these the stipes were 10-20 cm. high and 1 cm. thick, not as roughly scabrous as usually figured. The more common forms are such as are fig¬ ured by Hussey, Illust., PI. 8; Diet., Deutsch. Crypt., PI. 1^0; Rolland, Atlas Champ., PI. 52. Belgian settlement, September, Kohlberg. Pholiota squarrosoides Pk. The pileus is covered with rough, erect scales. The stipe is rough and shaggy below the ring, smooth above. A species much confused with the preceding. Those growing in dry weather are not viscid and when dry are whitish with no change of color. On logs, Otto’s woods, August, Algoma. Inocybe asterophora Quel. The stipe has a separable pellicle and a bulb wTiich gives it the appearance of Agaricus acetabulosa Sow., Eng., Fung., PI. 303. The spores are nodular, 10-11.5 microns in diam- Dodge — Fungi from the Region of Kewaunee Co., Wis. 821 eter. Cooke, Illust., PI. 385, figures the forms which we found under Osmunda, Nelson’s woods, Crossville, July, Mauston. Inocybe geophylla violacea Pat. The sharp umbo and bright vio¬ let color of the pileus are well preserved in the dried specimens. Blah- nik’s grove, September, Algoma. Inocybe subochracea Pk. Common in thick woods, Algoma, Aug¬ ust. Hebeloma crustuliniforme Bull. A species with clay-colored spores which appeared in great numbers in all the groves about Madi¬ son in June and was found throughout the following July and August at Mauston and Algoma. Flammula fiavida Schaeff. On decayed logs, Schmeiling’s woods, July, Algoma. Flammula polychroa Berk. The margin of the pileus is decorated with triangular scales. Those on the surface of the cap are purple or purple-brown. The stem is curved when plants grow from sides of logs or timbers, etc. Common. Krohn’s Lake, August, Algoma. Flammula sapinea Fr. Grows in clusters on coniferous logs, Krohn’s lake, September, Algoma. Naucoria horizontaiis Bull. Well illustrated by Sicard, Hist. Champ., PI. 23, fig. 117. On sides of decayed stumps, Detjen’s woods, June, Algoma. Naucoria vemalis Pk. Common on logs, August, Otto’s woods, Algoma. Gaiera tenera Schaeff. Forms fairy rings on lawns or grows on rubbish heaps in groves. Schaeff., leones, PI. 70, and Diet., Deutsch. Crypt, PI. 157, give good figures. Common. Blahnik’s grove, August, Algoma; July, Mauston. Crepidotus croceophylhis Berk. The gills are bright salmon to orange-colored, comparatively broad. The tawny-olive pileus and fer¬ ruginous spores together with the bright gills make it a species easily recognized. On logs with C. malachius, June, cemetery woods, Madison.. Crepidotus fulvo-tomentosus Pk. Common on dead limbs,, Krohn’s Lake, June to August, Algoma. Crepidotus malachius B. & C. The striations on the margin are" not alwmys apparent. The soft, whitish skin is usually covered with brown spore’s. Common on decayed logs, Krohn’s Lake, August, Algoma. Crepidotus mollis Schaeff. The watery margin seems to be quite a constant character even in dry weather. Berkeley, Out., PI. 9, fig. 69 represents the common form. On decayed trunks, Schmeiling’s swamp, August, Algoma. Crepidotus versutus Pk. A small white species common from June to October on dead limbs. Melchior’s woods, Algoma. Cortinarius cinnamomeus Fr. Otto’s woods, June, Algoma. 822 Wisconsin Academy of Sciences, Arts, and Letters. Cortinarius corrugatus subsquamosus Pk. The reddish spots and corrugations on the pileus are the identifying marks. On the ground in mixed woods, Fluno’s Bluff, July, Mauston. Cortinarius lilaciims Pk. The stipe is solid and bulbous, much more slender than that of C. violaceus. The whole’ plant is lilac-col¬ ored but fades in drying. On bogs, Stewart’s woods, July, Mauston; Alaska lake, August, Alaska. Cortinarius purpurascens Fr. The flesh of the pileus and stipe turn deep purple when bruised. Clustered in dry places, Blahnik’s woods, September, Algoma. Cortinarius sebaceus Fr. The pileus is whitish to alutaceous, the remainder of the plant white throughout, the gills remaining white even after t*he salmon-rust-colored spores have traced a ring on the stipe. On the ground under birch, Ihlenfeld’s grove, September, Al¬ goma. Cortinarius violaceus Fr. Lanzi, Fung. Mang. PL 61, fig. 1. and Schaeff., leones, PI. 3, illustrate this common species. Among grass in open places, Detjen’s woods, September, Algoma. Paxillus corrugatus Atk. Easily identified by Atkinson’s figure. Mushrooms, PL J+8, 1900. The spores are yellowish-ochre. On decayed logs, Schmeiling’s woods, August, Algoma. Rare. Paxillus atrotomentosus Fr. Under white cedar along banks of .Lake Michigan, Braemer’s flats, August, Algoma. Paxillus involutus (Batsch.) Fr. The pileus is frequently 15 cm. broad. On the ground among needles under dense growth of young coniferous trees, Schmeiling’s woods. A very much smaller and more slender variety showing rusty-purple stains on the stipe and pileus was found on logs, Krohn’s Lake, September, Algoma. Bolbitius fragilis Fr. The gills are watery and deliquesce after one or two hours but they do not dissolve. The margin of the pileus is striate. On dung, after rains, Ray’s pasture, June, Algoma. Agaricus campestris L. Rare. Kashbom’s pasture, September, Rio creek. Agaricus haemorrhoidarius Schulzer. The pileus is beautifully adorned with pointed scales. The flesh of both the pileus and stipe turns rose-red immediately after being bruised. On the ground under leaves of beech and maple, Blahnik’s grove, September, Algoma. Agaricus placomyces Pk. Hard, Mushrooms, p. 315, fig. 256, gives a good figure of this plant. It grows in groups in pastures under oak trees; July, Fluno’s bluff, Mauston. Agaricus silvicola Vitt. The fresh specimens are white as figured by Rolland, Atlas Champ., PI. 72, fig. 160. They turn yellow in' drying without being bruised. Cooke, Illust., PI. 529. Common in woods, but Dodge — Fungi from the Region of Kewaunee Co., Wis. 823 never occurs in plowed grounds or fields around Algoma. Stony Creek Foscora; Krohn’s lake, August, Algoma. Agaricus subrufescens Pk. The pileus is whitish, covered with soft scales formed by bunches of short hairs, broad conical, 8-10 cm. broad. The lower surface of the large annulus which hangs down about 4 cm., is pinkish and furiuraceous. The stipe is hollow, en¬ larged at the base, 3 cm. thick at the lower end, flattened at the apex. Said to be similar to A. fabaceus. Under beech, Blahnik’s grove, July, Algoma. Stropharia semiglobata Batseh. It is extremely difficult to find any two characters differentiating this species from 8. stercorarius Fr. They vary toward each other constantly. Forms with hollow stipes frequently have spores 10-12 x 16-20 mic. Comparing figures, Sow. Eng. Fung., PI. 2J/-8, Grev., Scot. Crypt, 6:344, and Cooke, Illust., PI. 113 , 114, the external characters seem to be similar. Common on dung in pastures, Erdman's farm, June to October, Algoma. Hypholoma appendi culatum Bull. Common in lawns after rains, June, Mauston and Algoma. Hypholoma candolleanum Fr. The pileus is dark-brown, being hjrgrophanous even in dry weather. Scattered along roads in woods, June, Fluno’s farm, Mauston. Hypholoma incertum Pk. On debris of old lumber piles in groves, Blahnik’s July, Algoma. Peck vid. Hypholoma perplexum Pk. Densely clustered on saw-dust, ve¬ neer factory, November, Algoma. Hypholoma rugocephalum Atk. A very characteristic species with spotted gills somewhat ochre-colored. The spores are purple-black, inequilateral, pointed, 7-8 x 9-10 microns. The gills and spores indi¬ cate a relationship to the genus Panaeolus. On the ground, solitary, in paths and open woods, Devine’s, September, AJgoma. Hypholoma sublateritium Schaeff. Distinguished from the re¬ lated species by the solid or stuffed stipe and the soapy taste of the flesh. In clusters or scattered over the grass around maple stumps, Schmeiling’s grove, October, Algoma. Psathyra maestiger B. & Br. The pileus is 2 cm. broad and high, date-brown, hygrophanous. The characteristic breast-shaped pileus is well shown even in the dried plants. The stipe is 0.4 x 7-15 cm., brittle, fiocculose at the apex. Remnants of a veil cling to the margin of the pileus, although there is no ring on the stipe. The spores are deep- purple, blunt elliptical, 4-6 x 8-10 microns. In black mould in a hol¬ low log, by a roadside in open woods, September, Casco. Fsilocybe foenisecii Pers. On lawns and meadows, July, Algoma. Psilocybe spadicea Schaeff. On rubbish heaps, Blahnik’s grove, September, Algoma. 824 Wisconsin Academy of Sciences , Arts , and Letters. Coprinus atramentarius Fr. Common in dense clusters under alder in pastures and in newly made lawns, June to August, Algoma. Coprinus comatus Fr. It required four days for one plant to reach maturity, when it was 25 cm. broad. Perry’s lumber yard, Aug¬ ust, Algoma. Coprinus ebulbosus Pk. (Coprinus picaceus ebulbosus Pk.). Hard, Mushrooms, p. 33 6,fig. 274, gives a good figure of the specimen found in cemetery woods, June, Madison. Coprinus ephemerus Fr. There is little substance to the gills or caps. The species grow in hot-beds and around horse stables; each day’s crop turns to ink and disappears in a short time. April to June, Algoma. Coprinus micaceus Bull. The gills are purple-brown in most of the Algoma plants. Peck says that the spores are sometimes blackish- brown. The gills do not deliquesce unless the air is moist. On lawns, dirt-covered poles in pastures and around stumps in woods, May to August, Algoma. Coprinus ovatus (Schaeff. ) Fr. A form which springs up in gar¬ dens and soon turns black. The ring is inconspicuous and the stipe deeply rooting. July, Mauston. Coprinus plicatilis Fr. This species grows in mulching under rose bushes. It is well illustrated by Sowerby, Eng. Fung. PI. 364. Eppling’s yard, July, Algoma. Panaeolns papilionaceus Fr. Common on dung in groves, June, Schmeiling’s, Algoma. Panaeolus retirugis Fr. This differs from the preceding species in having large fragments of the veil attached to the margin of the pileus, which is wrinkled and not cracked into areas. Figures by At¬ kinson, Mushrooms, PI. 11, fig. 4 5, Gille't, Champ. Fr. On dung, Detjen’s pasture, June to November, Algoma. BOLETINEAE. Boletinus paluster Pk. [ Boletinellus paluster (Pk.) M.] The spec¬ imens are not as bright red as figured by Peck, Kept. 23, PI. 6, figs. 4~6. In Sphagnum swamps, Blahnik’s, November, Algoma. Boletinus pictus Pk. The ochre-colored spores and larger, more angular pores distinguish this species from B. spectabilis wThich grows in the same locality. Under cedar and tamarack, Ahnapee river swamp, September, Algoma. Boletinus porosus (Berk.) Pk. [Boletinellus merulioides (Schw.) M.] A species with large, angular, golden-yellow tubes. Shaw’s swamp, September, Foscora. Bodge — Fungi from the Region of Kewaunee Co., Wis. 825 Strobilomyces strobilaceus Berk. In dense woods around Maus- ton, June to September. Not found at Algoma. Boletus bicolor Pk. [Ceriomyces bicolor (Pk.) M.] Not common. North side of Mile Bluff, August, Mauston. Boletus Americauus Pk. Among grass in open places, Detjen’s swamp woods, September, Algoma. Boletus chrysenteron Bull. [ Ceriomyces communis (Bull.) M.] Along banks in gulleys and ravines, July, Mauston; in open groves, Krohn’s Lake, August, Algoma. Boletus Olintonianus Pk. The Bohemians call this the “butter mushroom.” Common under tamarack after the first rains in Septem¬ ber. Algoma. Boletus cyanescens Bull. \Gyroyorus cyanescens (Bull.) M.] Fre¬ quently found with two or three joined together at the base of the stipe. In sandy soil, Robinson’s bulff, June, Mauston; Stony Creek, September, Foscora. Boletus elbensis Pk. The entire plant is whitish-gray. The pileus is covered with a brown glutinous substance. The flesh is thick, but is so soft and spongy that the Bohemians will not eat even the young specimens. The tubes are large, angular and frequently compound. Their arrangement in irregular radiating rows would suggest that the species should be placed in the genus Boletinus. The stipe is clothed with a furry coat somewhat resembling that of Strobilomyces strobila¬ ceus. The flesh of both stipe and pileus sometimes changes color to a blue-green when bruised, but this character is not at all constant in the plants found growing several seasons in the same location. It is a very distinct species and one easily identified. Under tamarack and cedar in low swamps along the Ahnapee river, September, Algoma. Peck vid. Boletus edulis Bull. ■[. Ceriomyces crassus (Batt.) M.] The lilac- purple stains on the stipe and pileus are present where the plants have been bruised as usually described for B. eximius. The tubes are green¬ ish-white, the young forms having the mouths stuffed. The stipe is never enlarged at the base and is always delicately reticulated, at least on the upper half, thus suggesting B. affinis. We have referred speci¬ mens, collected in the same locality, with pileus deeply cracked into pyramidal areas, to B. frustulosus. Under boards, logs and in grassy places, under beech and maple along the border of Blahnik’s grove, August, Algoma, Boletus felleus Bull. •[ Tylopilus felleus (Bull.) M.] Heuer’s woods, August, Algoma. Small forms in low grounds, Stewart’s swamp, July, Mauston. Boletus frustulosus Pk. •[ Ceriomyces frustulosus (Pk.) M.j In these specimens the pileus is whitish, or tinged with brown, cracked 826 Wisconsin Academy of Sciences , Arts , and Letters. deeply into polygonal areas, showing tho white flesh underneath. They agree exactly with “Type No. 1” of the species collected by Under¬ wood, and it may he that the description should be enlarged to include the forms listed above under B. edulis. Plants growing in dry sod where there was little shade would naturally become deeply cracked. Under beech, south edge of grove, Blahnik’s, August, Algoma. Boletus glabeilus Pk. [ Geriomyces miniato-olivaceus (Frost) M.] Under pine, along pasture borders, Fluno’s bluff, June, Mauston. Boletus luridus Schaeff. {Suillellus luridus (Schaeff.) M.] The stipe is* merely dotted with fine points and not reticulated, dark-red or yellow. The tubes are minute with uneven cinnabar-red mouths. The quick change of color of the flesh to dark blue when broken is very characteristic. Under beech and maple, Blahnik’s grove, August, Al¬ goma. Boletus n ire us Fr. A variety of the rough-stiped form which is white throughout. It is much smaller than B. scaber and has only a rough stipe in common with that species1 and B. punctipes. This white form seems to be a distinct species with constant characters. Under alder and tamarack, Detjen’s swamp, September, Algoma. Boletus piperatus Bull. •[ Geriomyces ferruginatus (Batsch.) M.] Where snails had eaten the tubes, the flesh was rose-pink. The tubes at the margin are 5-6 mm. long, giving the plants a blocky appearance. Murrill, Mycologia, PI. 19, fig. 2, gives an excellent figure of this spe¬ cies. Common on mossy hummocks, Blahnik’s grove, August, Algoma. Boletus Russellii Frost [Ceriomyces Russellii (Frost) M.] North side of Mile Bluff, August, Mauston. Boletus scaber Bull. •[ Ceriomyces viscidus (L.) M.] Common in mixed woods, Ihlenfeld’s, July to September, Algoma.- Boletus spectabilis Pk. The pileus is covered with a reddish fur¬ like tomentum which cracks into patches forming triangular scales which are easily rubbed off. In wet weather these patches are jelly- like. The lavender colored veil, which covers the tubes at first, melts into a jelly as the plant ages. The purple-brown spores are charac¬ teristic of the species. The Bohemians will not eat this Boletus. In swramps along the Ahnapee river, September, Algoma. Boletus subluteus Pk. In sandy soil under pine and oak, Fluno’s Bluff, August, Mauston. Boletus subtomentosus L. *[. Geriomyces subtomentosus (L.) M.] Common around Mile Bluff, July, Mauston. Boletus sphaerosporus Pk. This species was found growing abundantly in grassy places along the drive in the University grounds during the first weeks in June. The appearance of young specimens is uninviting owing to the purplish slime which covers the thick leath¬ ery veil extending from the stipe to the margin of the pileus. The Dodge — Fungi from the Region of Kewaunee Co., Wis. 827 edibility of the species was carefully tested. The flesh is solid, free from larvae and of excellent flavor when broiled or fried. Old plants are dry and spongy and would not be gathered for food. The annulus was not white in any of the specimens seen. Madison. Boletus versipellis Fr. The constant characters of this species as we find it which serve to distinguish it from B. scaler are the bright rusty-orange color of the pileus, the appendiculate margin of the same color as the pileus, the quick change of color of the flesh to a “cop¬ pery-red” or purple, the more coarsely roughened stipe, the dark points often arranged in reticulations, and the lighter colored and smaller spores. The pores may be either yellowish or white in young forms. The stipe becomes greenish or purple after being broken, finally be¬ coming blackish. In young forms the pileus is scarcely broader than the stipe when the latter is full grown at this period. E. Michael, Fuehr. Pilz. No. 4, Bresadola, Fung. Mang., Pll 93, Pat. Tab. Anal., fig. 666, Ric-hon, Atlas Champ., PI. 54, fig'c. 4> 5, 7, are all good illus¬ trations of these forms. Common under beech and alder, Ihlenfeld’s woods, July to September, Algoma. Boletus granuiatus L. [Rostkovites granulatus (L.) Karst.] Under pine and hemlock, Schmeiling”s woods, September, Algoma. POLYPORACEAE. Polyporus adustus (Willd.) Fr. •[ Bjerkandera adusta (Willd.) Karst.] Common on old logs and stumps, September, Kohlberg. Polyporus arcularius (Batsch.) Fr. On old limbs, Shaw’s woods, Foscora. Rare. Polyporus betulinus Fr. •[ Piptoporus suberosus (L.) M.] Com¬ mon on birch stubs, Devine’s woods, August, Algoma. Polyorus borealis Fr. [ Spongipellis borealis (Fr.) Pat.] On logs, Detjen’s woods, May, Algoma. Rare. Polyporus brumalis (Pers.) Fr. •[Polyporus polyporus (Retz.) M.] Common on old logs and sticks, Detjen’s, October, Algoma. Polyporus caesius (Schrad.) Fr. ■[ Tyromyces caesius (Schrad.) M.] Our forms are rather large for the species, frequently being 10-12 cm. broad. On logs, Heuer’s woods, September, Algoma. Polyporus chioneus Fr. •[Tyromyces chioneus (Fr.) Karst.] On dead maple, Schmeiling’s woods, August, Algoma. Common. Polyporus circinatus Fr. Sections of several specimens of fungi originally identified as P. tcmentosus showed the duplex character as¬ cribed to P. circinatus. Lloyd, Myc. Notes, p. 30, fig. 198, finds that there is a distinct difference, and that the two species differ, as Fries maintained. The color of the pileus in our forms varied from light 828 Wisconsin Academy of Sciences, Arts, and Letters. yellow to dark ferruginous brown. The stipe is usually eccentric. Under tamarack and pine, Detjen’s woods, November, Algoma. Bresa- dola vid. Folyporus elegans (Bull.) Fr. Some of these forms have an even and not umbilicate pileus with a thick blunt margin, and a short, more or less eccentric stipe, as figured by Bulliard, Hist. Champ., PI. 12J^. Other forms have a thin umbilicate pileus, 3 cm. broad, and a stipe up to 12 cm. long. Common on old limbs, Detjen’s, September, Algoma. Folyporus distortus Schw. [Abortiporus distortus (Schw.) M.] On old stumps of deciduous trees, September, Krohn’s Lake, Algoma, Mur- rill vid. Folyporus fiavidus Pk. [Grifola fractipes (B. & C.) M.] The pileus is 5-8 cm. broad, whitish to alutace'ous, faintly zoned, depressed and slightly tomentose at the center. The pores are small, white, and decurrent. Three or four stipes may arise from the common basal mass. Fellow’s woods, September, Foscora. Folyporus frondosus (Dicks.) Fr. •[ Grifola frondosa (Dicks.) M.] On old stumps, August, Kohlberg. Folyporus fragrans Pk. [Bjerkandera puberula (B. & C.) M.] On old stumps, Ihlenfeld’s woods, September, Algoma. Murrill vid. Folyporus fmnosus (Pers.) Fr. [Bjerkandera fumosa (Pers.) Karst.] At the base of a living poplar, Blahnik’s woods, August, Al¬ goma. Murril vid. Folyporus gilvus Schw. [ TIapalopilus cfilvus (Schw.) M.] Com¬ mon. On living maple, Devine’s woods, August, Algoma. Folyporus guttulatus Pk. [ Tyromyces guttulatus (Pk.) M.] On old coniferous logs, probably hemlock, Devine’s woods, August, Algoma. Peck vid. Murrill vid. Folyporus lac tens Fr. [ Tyromyces lacteus (Fr.) M.] On fallen timber, Devine’s woods, September, Algoma. Murrill vid Folyporus lentils, Berk. A small centrally stiped plant, 1-1.5 cm. broad and 5 cm. high, with large angular whitish pores which are decurrent. On limbs, Heuer’s woods, Algoma. Rare. Neumann vid. Folyporus officinalis Fr. [ Fomes laricis (Jacq.) M.] There is considerable doubt as to the correctness of the identification of the specimen referred to here on account of its having been collected in an apparently growing condition on a piece of slab of some coniferous wood lying in a damp woodshed. The context is chalk-white and has a very bitter taste like that of P. officinalis. July, Algoma. Folyporus osseus Kalch. Several pilei are closely imbricate, tapering downward to a common stipe-like portion. The flesh is soft and watery in fresh specimens, at first white, drying alutaceous and very hard. Shaw’s w oods, October, 1905. Krohn’s Lake, on con¬ iferous log, August, 1909, Algoma. Bresadola vid. Bodge — Fungi from the Region of Kewaunee Co., Wis. 829 - Polyporus picipcs Fr. [Poly poms fissus (Berk.) M.J. The pileus varies from 2 cm. to 20 cm. broad and from 0.5 mm. to 10 mm. in thickness at the center. The chestnut color of the pileus with the blackish center, and the hard, brittle flesh of dry specimens’ are con¬ stant characters. On logs, Krohn’s Lake and Belgian settlement, July and August, Algoma. Polyporus resinosus (Schw.) Fr. [Fames annosus (Fr.) Cooke]. A thin, non-resinous liquid is usually found hanging in drops from the pore surface of growing specimens. Such animals as mice and rabbits will eat plants remaining on stumps during the winter. They are too tough to eat even when well cooked. Common. On logs and stumps, Blahnik’s woods, July to September, Algoma. Polyporus Spraguei B. & C. [ Tyromyces Spraguei (B. & C.) M.] On decayed logs, Krohn’s Lake, September, Algoma. Murrill vid. Polyporus squamosus Fr. [Polyporus caudicinus (Scop.) M.]. One centrally stiped plant was collected from the top of a maple stump, Blahnik’s grove, July, Algoma. Polyporus subradicatus Murrill. The stipe is about 8 cm. long and only 4-6 mm. thick, otherwise the description given by Murrill, N. Am. FL, 9:63, applies well to this form. On the ground near a log, Otto’s woods, July, Algoma. Murrill vid. Polyporus sulphureus Fr. [Laetiporus speciosus (Batt.) M.]. Common. On logs, stumps, and on the ground, growing from buried sticks. < July to September, Algoma. Polyporus tomento'sus Fr. [Coltricia tomentosa (Fr.) M.]. Simi¬ lar to those identified as P. circinatus except that the flesh of the pileus is not duplex. The whole plant is dark ferruginous. On the ground among pine needles, Shaw’s woods, September, Algoma. Polyporus umbtell'atus (Pers. ) Fr. [Grifola ramosissima (Scop.) M.]. Rare. Detjen’s woods, September, Algoma. Neumann vid. Polyporus varius Fr. Gillet, Champ. France, Bolton, Hist. Fung., PI. 83, 168, Grev., Scot. Crypt., 202, represent these forms. The pileus is frequently 10 cm. broad with flesh 1-2 cm. thick, variously deformed and doubled. On logs, June, Blue Mounds; Heuer’s woods, October, Algoma. Polyporus sp. Pileus 5 cm. broad, deeply umbilicate, light drab, slightly squamulose, the margin strongly inrolled; flesh 1 mm. thick, white, fragile; tubes hexagonal elongated radiately, 1 x 1.5-2 mm. across and about 3 ,mm. long, decurrent; stipe central, brownish, 0.5 x 10 cm., rough tomentose toward the base; spores white, hyaline, smooth, ovoid, 5x6 microns. Peck refers the specimen somewhat doubtfully to P. lentus Berk. Although the plant was fully developed, few spores were obtained, and these differed materially from the spores of P. arcularius Schw. On the ground, growing from buried wood. June, Blue Mounds. 830 Wisconsin Academy of Sciences f Arts, and Letters . Gloeoporus conclioides Mont. Brought in on oak cord-wood, April,. Algoma. Merulius lacrymans (Jacq.) Fr. On under side of planks, Decker dock, June, Algoma. Merulius tremellosus Schrad. On bark of oak and on decayed logs, Tornado, September, Kohlberg. Polystictus biformis Klotz. [Coriolus biformis (Klotz.) Pat.]. On maple stumps, Danek’s woods, January, Algoma. Peck vid. Polystictus cinnabarinus (Jacq.) Fr. [Pycnoporus cinnabarinus (Jacq.) Karst.]. Figured by Bulliard, Hist. Champ., PI. 501, fig . 1. On trunks and limbs, June to October, Algoma. Polystictus cinnamomeus (Jacq.) Sacc. [Coltricia cinnamomea (Jacq.) M.]. Common in sandy soil, June, Hale hill and Mile Bluff, Mauston; Krohn’s Lake, July, Algoma. Polystictus conchifer Schw. [ Poronidulus conchifer (Schw.) M.]. Both forms common on dead limbs, Krohn’s Lake and Danek’s woods, October, Algoma. Polystictus fibrillosus Karst. [Pycnoporellus fibrillosus (Karst.) M.]. A form frequently reported as P. aurantiacus Pk. Occasionally plants become much faded writh age. Rare. On coniferous logs, Oc¬ tober, Awe’s grove, Foscora. Polystictus hirsutus Fr. [Coriolus nigro-marginatus (Schw.) M.].. Common. On dead limbs, Otto’s woods, November, Algoma. Polystictus pereimis (L. ) Fr. [Coltricia perennis (L.) M.] Well illustrated by Rolland, Atlas Champ., PI. 89, fig. 197. On the ground, Schmeiling’s grove, August, Algoma. Polystictus pergamenus Fr. The violet color of the pore surface of the young plant is a constant characteristic. Common on limbs, logs and standing trunks of frondose treees, September, Algoma. Polystictus pubescens (Schum.) Fr. [Coriolus pubescens (Schum.) M.]. The pileus is coarsely pubescent and the whole plant is white* with little change in drying. On decayed stumps, Krohn’s Lake, Sep¬ tember, Algoma. Murril vid. Polystictus versicolor (L.) Fr. [Coriolus versicolor (L.) Quel.]. Good figures by Hussey, Illust., PI. 24, Schaeff., Incones, PI. 263, 268 * and Rolland, Atlas Champ., PI. 96. Common. Danek’s woods, August, Algoma. Fomes applanatus Pers. [Elfvingia megaloma (Lev.) M.]. Sev¬ eral authors have held that the brown spores that are frequently found on the pileus in growing seasons are conidia which arise from the up¬ per surface.. They are in reality basidiospores that have been borne upward by air currents and deposited on the upper surface. Several isolated plants were thoroughly cleaned and paper tacked over the pileus. After a few days the papers were covered with the same Dodge — Fungi from the Region of Kewaunee Co., Wis. 831 spores but none were found on the pileus under the papers. There are .also several conflicting opinions as to the relation between the Amer¬ ican and the European forms of this species. Lloyd, Myc., Notes, No. 6, p. 60; Murrill, N. Am. FL, 9; 114; Moffatt, Bull. Nat. Hist. Surv. 7:108; Atkinson, Ann. Myc., 6: 17 9. Common on deciduous woods, Algoma. Fomes concliatus (Pers.) Fr. [ Pyropolyporus conchatus (Pers.) M.J. On dead alder, Perry’s woods, August, Algoma. Fomes connatus Schw. [Coltricia focicola (B. & C.) M.] On stub of partially decayed beech, Devine’s woods, August, Algoma. Fomes Everhartii Ellis & Gall. [ Pyropolyporus Everiuurtii (E. & Gall.) M.]. Originally figured in Journal of Mycology, vol. V, 1889, PI., 12. On old logs, Mile Bluff, July, Mauston. Fomes foinentarius (L.) Fr. [fflfvingia fomentaria (L.) M.]. The pileus is light colored and only slightly sulcate. Sow. Eng. Fungi, PI. 133, Gillet, Champ. Fr. PI. 46 7, are of this type. Devine’s woods, on birch, September, Algoma. Lloyd, Myc. Notes, pp. 22, 341, 373, PI. 194 > describes a rare form that has a hard, shining, black, strongly concentrically sulcate crust. He does not agree with Murrill that it is F. fomentarius of advanced age and indurated. The sulca- tions dip into the pore layers. Such specimens were found in June at Mile Bluff, Mauston. Fomes graveolens (Schw\) Cooke. [GloMfomes graveolens (Schw. M.]. Hard, Mushrooms, p. 405, fig . 334, figures the black, shining, overlapping pilei. Rare. On oak stub, Loomis woods, June, Mauston. Fomes igniarius (L.) Gill. [Pyropolyporus igniarius (L. ) M.] On oak, Coon Rock, July, Mauston. Fomes lncidus Leys. [Ganoderma Tsugae M.]. A variable spe¬ cies, either sessile or long-stiped. The upper surface is often covered with brown spores, as is that of F. applanatus. Atkinson, Bot. Gaz., 46:334, 1908, discusses the variations of this species and considers that the name Ganoderma pseudo-boletum (Jacq.) M. should be applied to the American plants. Common. On trunks and stumps of Tsuga canadensis, Krohn’s lake, August, Algoma. Fomes nigricans Fr. On decayed poplar log, Trumble’s ravine, July, Mauston. Fomes imgulatus (Schaeff. ) Sacc. The margin is yellow or red¬ dish, depending on the season. In the spring of the year the pore lay¬ ers are easily separated from the pileus. On fallen tamarack trunks, Detjen’s woods, April, Algoma. Fomes roseus (A. & S.) Cooke. On sidewalks, and on trunks of coniferous trees, Perry’s swamp, June, Algoma. Baedalea ambigua Berk. [Daedalea Aesculi (Schw.) M.] On fallen maple, Blahnik’s grove, August, Algoma. 832 Wisconsin Academy of Sciences , Arts, and Letters. Daedaiea confragosa (Bolt.) Pers. The pores are whitish-lilac in fresh plants and are fairly regular, but with age become split in lines forming gills. Such forms are sometimes called Lenzites cor- rugata. On fallen birch, Krohn’s lake, August, Algoma. Daedaiea obtusa (Berk.) Neumann. [ Spong ip ellis unicolor (Schw.) M.]. The pileus may be either hoof-shaped with a thick margin, or fiat-expanded with a thin margin. Full grown plants are ashy^white in wet weather, the yellow colors appearing only in the dried speci¬ mens. They make good substitutes for sponges. Common on oaks, August, Mauston. Baedaies qnercina (L.) Pers. On oak stumps, Fluno’s bluff, July, Mauston. Daedaiea unicolor (Bull.) Fr. [Cerrena unicolor (Bull. M.]. Common on oak and maple stumps, June, Mauston; Runke’s woods, August, Algoma. Favolus alveolaris (DC.) Quel. [ Hexagona alveolaris (DC.) M.]. Other names: F. europaeus; F. canadensis; F. boucheanus. On hick¬ ory and beech, Danek’s, June, Algoma; Heineman’s, August, Mauston. Favolus rhipidium Berk. Distinguished by its resemblance to Panus stipticus. On blocks of hewn timber, Coon rock, June, Mauston. Bolenia anomala (Pers.) Fr. Common on alder twigs, December, Perry’s swamp, Algoma. Poria Blytiii Fr. The pores are small, regular, cinnamon-colored. Awe’s, September, Foscora. Bresadola vid. Poria laevigata Fr. Perry’s swamp, December, Algoma. Poria salmonicolor B. & C. Covered the under side of a hemlock log for several inches. Krohns’ Lake, August, Algoma. Poria subacida Pk. Common on old logs, Detjen’s woods, March to August, Algoma. Poria vulgaris Fr. Krohn’s Lake, September, Algoma. Neumann vid. Poria nigra Berk. On oak log, Mile bluff, July, Mauston. Mur- ril, vid. Trametes odorata (Wulf) Fr. Differs from T. protracta Fr. in having much longer tubes, 4-8 mm., a blunt or sometimes rolled mar¬ gin, and in the color and character of the surface. Common. Otto’s woods, September, Algoma. Trametes protracta Fr. Well illustrated by Fries, leones, PI. 191. His figure shows zonate marks on the pileus although it is not so de¬ scribed. A cross section is triangular, showing a thin margin. Perry’s woods, October, Algoma. Trametes Pini (Thore) Fr. [ Porodaedalea Pint (Thore) M.]. Common on living spruce, Perry’s swamp, August, Algoma. Well fig¬ ured by Sicard, Hist. Nat. Champ., PI. 60 fig. 307, Dodge — Fungi from the Region of Kewaunee Co Wis. 833 Trametes rigid a Berk & Mont. Stony Creek, September, Foscora. Trametes serialis Fr. Common on logs, Det jen’s woods, April, Algoma. Trametes stereoides Fr. On dead limbs, Runke’s woods, October, Algoma. HYDNEAE. Hydnnm adustulum Banker ( Steccherinum adustulum Banker). A small species with a cream colored, pubescent pileus marked with brown zones. The stipe is eccentric in Algoma forms. On pieces of wood among needles in swamps, under Larix and Thuja, Ahnapee river, September, Algoma. Hydnnm caput-ursi Fr. [ Manina caput ursi (Fr. ) Banker.] The large tubercle is narrowed behind into a small point of attachment. The branches are short and thick, 2_3 cm. long. Fries, Incones, PI. 7, shows a good cross section view of the plant. A somewhat different form is figured by Peck, Rept., 51. PI. 56, fig. 8-12. Otto’s woods, September, Algoma. Hydnnm coralloides Scop. [ Manina coralloides (Scop.) Banker.] The whole plant branches into primary and secondary divisions, the first devoid of teeth except where they are on slight protuberances or abortive branches. May be confused with TI. caput-ursi on account of the massive branches and long pendent teeth. Atkinson, Mushrooms, PI. 67, fig. 185, 1900, has such a figure for H. caput-ursi. Schaeff, leones, PI. Uf2 TI. coralloides is a good illustration of our specimens. On oak and maple, Tornado, Kohlberg, September. Hydnnm laciniatum Leers. The teeth are short, flexible and slender, 2_5 mm. long. The branches are long, narrow, often anastom¬ osing, and having the teeth distributed uniformly on the lower sur¬ face. Bull., Hist. Champ., PI. 390 \ Peck, 48th Rept. PI. 2k fig. 11 IS, Atkinson, Mushrooms, 1900, fig 18k, Mcllvaine, Am. Mush., PI. 13k, represent the forms referred he're to H. laciniatum. Hydnnm erinaceum Bull. On oak, Tornado, September, Kohl¬ berg, Hydnnm fioriforme Schaeff. [ Hydnellum floriforme (Schaeff.) Banker). The color of the pileus varies from light yellow to reddish orange. Often reported as H. aurantiacum A & S. On the ground, Heuer’s woods, August, Algoma. Hydnnm graveolens Delast. [Phellodon graveolens (Delast.) Banker]. On the ground, Shaw’s woods, September, Algoma. Com¬ mon. Hydnmn rhois Schw. [8teccherinum rhois (Schw.) Banker]. On fallen limbs and on deciduous woods, September, Krohn’s Lake, Al¬ goma. On base of frog crates in zoological laboratory, June, Madison. 834 Wisconsin Academy of Sciences , Arts, and Letters. Hydnum ochraceum Pers. [Steccherihum ochraceum (Pers.> Gray]. Common. On decayed limbs, Perry’s woods, December, Al- goma. Hydimrn imlcherrimum B. & C. [Steccherinum pulcherrimum (B. & C.) Banker]. Young plants are pure white, sessile, sometimes imbricate. A white milk exudes from wounded portions. This piilk later becomes sticky and hardens, changing to reddish purple. Older plants are yellowish, turning reddish in drying. Pieces of wood are usually attached to collected specimens. Common on dead oak trees, birch stumps, and on living maple. Mile Bluff, June, Mauston; Otto’s woods, September, Algoma. Hydnum repandum L. Common. On the ground under beech, maple, etc., Schmeiling’s, June to August, Algoma. Hydnum septentrionale Fr. [ Steccherinum septentrionale (Fr.) Banker], Several pilei are closely imbricated forming a semiglobular mass attached at a narrow vertical line. Plants often fall off from the place of growth owing to their weight. On dead maple, Tornado, No¬ vember, Kohlberg. Hydnum velutinum Fr. [ Hydnellum velutinum (Fr.) Banker]. The whole plant is soft and spongy, rusty-brown, tomentose. The sub¬ stance at the upper portion of the stipe is convex-transversely zoned. The deformed and spongy stipe is well figured by Gillet, Champ. France, PI. 324, Pat., Tab. An., fig. 617, Bull., Hist. Champ., PI. 453. Sometimes referred to H. spongiosipes Peck. Common. Under pines, Detjen’s woods, September, Algoma. Irpex fuscescens Schw. (Irpex cinnamomeus Fr.) Common. On dead alder, willow, etc. Perry’s swamp, Algoma. Irpex lacteus Fr. On stumps, September, Casco. Irpex tabacinus B. & C. Almost entirely resupinate, covering the end of a large log, Tsuga canadensis. The teeth are long, 4-7 mm., whitish, seriate. The color of the plant is dark tobacco brown. Krohn’s lake, August, Algoma. Irpex tulipiferae Schw. On small dead limbs of various decidu¬ ous trees, Stony Creek, October, Algoma. Phlebia merismoides Fr. The spores are subglobose, smooth, white, minute, 3-4 microns. On under side of deciduous log. Detjen’s swamp, April, Algoma. Plilebia radiata Fr. Some forms do not show the radiating struc¬ ture of the folds. Common. On decayed logs,, Ihlenfelds’ woods, Sep¬ tember, Algoma. Dodge — Fungi from the Region of Keivaunee Co., W is. 835 THELEPHOREAE. Thelephora caryophyllea (Schaeff.) Pers. A thin, coriaceous, stipitate form with uneven or lacerated margin. The entire surface is smooth and silky. Saunders & Smith, Myc. Illust., PI. 41, figs. 7-12 ; Schaeff., leones, PI. 325. Blahnik’s grove, July, Algoma. Thelephora intybacea Pers. Soft spongy plants, unevenly colored purplish-brown, several growing together irregularly and climbing up on small bushes. Sowerby, Eng. Fung., PI. 213; Bull., Hist., Champ., PI. 483. In Sphagnum swamps, November, Algoma. Thelephora palmata Scop. On the ground, Hale’s woods, August, Mauston. Thelephora Schweinitzii Fr. Common on the ground in woods, June to September, Mauston and Algoma. Craterellus cornucopioides Fr. Mature specimens are sometimes not over 2 cm. tall and 0.5 cm. broad. Lanzi, Fung. Mang., PI. II, fig . 5, shows the more common large forms. On the ground, Van Deusen’s woods and Mile Bluff, August, Mauston. Stereum com plica turn Fr. Common on alder, Perry’s swamp, De¬ cember, Algoma. Stereum fasciatum Schw. On logs and stumps, June to Septem¬ ber, Mauston and Algoma. Stereum frustulosum Fr. On logs and stumps, Tornado, August, Kohlberg. Stereum hirsutum Fr. On fallen timber, Krohn’s Lake, August, Algoma. Stereum purpureum Pers. On fallen limbs of some deciduous Stereum radians Fr. The pileus is covered with silky hairs, tree, Krohn’s Lake, August, Algoma. radiately striate, 1-2 cm. broad. Seems to be similar to 8. sericeum Schw. On twi'gs and limbs, Blahnik’s swamp, July, Algoma. Stereum rufum Fr. On some coniferous stub, Perry’s swamp,, December, Algoma. Hymenochaete tabacina (Sow.) Lev. On dead limbs of willow. Perry’s swamp, December, Algoma. Hymenochaete ferruginea Bull. On logs, Blahnik’s swamp, July, Algoma. Bull. Hist. Champ., PI. 378. Coniophora suffocata (Pk.) Massee. The spores are subglobose, 8-10 microns, pinkish-ochraceous, completely covering the thin bladdery hymenium. When the spore mass cracks, the wThitish subiculum is seen as described by Moffatt, Bull 7, p. 11, Nat. Hist. Surv. Chi. On charcoal, spreading out on leaves, September, Algoma. Corticium cinereum Fr. On old maple limbs, August, Schmiel- ing’s grove, Algoma. 836 Wisconsin Academy of Sciences, Arts, and Letters. Corticium laeve Fr. On dead branches, Heuer’s woods, August* Algoma. Corticium lilacino-fuscum B. & C. On dead willow, Belgian set¬ tlement, September, Kohlberg. Corticium salicimim Fr. Common. On willow. Perry’s swamp,. August, Algoma. Cyphella pezizoides Zopf. On oak and maple leaves, June, Fos- cora. CLAVARIEAE. Oavaria amethystina Bull. Berkeley, Out., Pi. 18, fig. 2, shows a form with violet-colored branches having whitish tips. The much branched forms as figured by Sicard, Hist. Champ, PI. 61, fig. 315., are more common. Among grass under oak, Fluno’s Bluff, June, Mauston. Clavaria cinerea Bull. Bull., Hist. Champ., PI. 351{. Rare. Heuer’s woods, September, Algoma. Clavaria grandis Pk. This species seems to be near C. tsugina Pk, but has a very strong, heavy aromatic odor. On the ground among coniferous logs, Krohn’s Lake, August, Algoma. Clavaria coronata Schw. The spines are stouter and firmer than those of C. pyxidata which it resembles in having the cup-shaped tips to the branches. On decayed log, Blahnik’s woods, July, Algoma. Clavaria cristata Pers. Common. On decayed logs, Tornado, September, Kohlberg. Clavaria inaequalis Muell. Branches twisted and divided at the apex as figured by Sowerby, Eng. Fung., PI. 253. In groups under dense shade of alder, Stony Creek, September, Algoma. Clavaria pulchra Pk. Small plants, 2 cm. high, slender club- shaped. The spores are bright yellow. Similar to those growing on earth in palm tub and identified by Dr. Peck. Krohn’s Lake, September, Algoma. Clavaria pyxidata Pers. Common. On logs and woody earth, Krohn’s Lake, July to October, Algoma. Clavaria stricta Pers. On wood-strewn earth, Krohn’s Lake, Au¬ gust, Algoma. Clavaria tsugina Pk. Dark ochre to rusty brown, the tips whit¬ ish, sharp. Tendency to branch from one large, central, stipe-like por¬ tion. Abundant. On logs, Tsuga canadensis. Krohn’s Lake, August, Al¬ goma. Clavaria sp. Pure white plants 1—2 cm. high with slender branches. Solitary on leaves which were much decayed, Krohn’s Lake, August, Algoma. Bodge — Fungi from the Region of Ketvaunee Co.. Wis, 837 % TREMEL LINE AE . Exidia glandulosa (Bull.) Fr. Common on old limbs and cord- wood, March to November, Algoma. TremeUa albida Hud. On wet stumps and logs, Blue Mounds, June; Detjens’ woods, September, Algoma. TremeUa foliacea Pers. On dead limbs, Perry’s swamp, Decem¬ ber, Algoma; cemetery woods, June, Madison. TremeUa frondosa Fr. Oh living tamarack, Ihlenfield’s woods, September, Algoma. Tremella fuciformis Berk. [ TremeUa reticulata (Berk.) Farlow.] A large white, much-branched plant. On the ground, Runke’’s pasture, August, Algoma. Tremella intumescens Sm. Eng. Bot. Pinkish-watery when fresh, then tawny brown. The spores are oblong, curved. Very common on beech stumps after rains, Blahnik’s grove, August, Algoma. Tremella lutescens Pers. On old wood, Otto’s woods, June, Al¬ goma. Rare. Tremella mesenterica Retz. On oak bark, Mile Bluff, July, Mauston. Tremella mycetophila Pk. [ Exobasidium mycetophila (Pk.) Burt.] On the pileus and stipe of Collyhia dryophila, Krohn’s Lake, August, Algoma. TremeUa sebacea Pers. On grass, July, Algoma. NaemateUa encephala Fr. This specimen consists of about a dozen curving folds forming a brain-like aggregation 7cm. across. The nucleus of each fold is tough, white, elastic, 0.5-1 cm. wide and 2 cm. high, sometimes branched. The nuclei of the folds run together into a common base of similar consistency. Each fold is covered with a firm gelatinous layer 1-1.5 cm. thick, which is about the color of boiled starch and not flesh-colored as described by Fries, Syst. Myc., p. 227. Neither is it reddish-brown until dry. When soaked in water the cluster of folds swells to its original size and assumes a whitish color. The max¬ imum size has been given as. 3-6 lines, Alb. & Schw., Cons. Fung., p. 301, but this may refer to a single fold. This cluster of folds is plainly a single plant. A section through the plant resembles a section through a brain. The external appearance is likewise brain-like. On living tamarack at a point where a stub of a dead limb protruded. Detjen’s woods, April 1, Algoma. Tremellodon gelatinosum (Scop.) Pers. Common on hemlock logs and stumps, Krohn’s Lake, August; Schmeiling’ woods, September, Algoma. 838 Wisconsin Academy of Sciences , Arts, and Letters . Dacryomyces multiseptatus Beck. When moist the plants are bright golden-yellow, but turn orange when dry. The spores are yellow, curved, 6-9 septate, 6 x 20 microns. This may be Dacryomyces aurantia (Schw.) Farlow. Common on old stubs, and at the base of living tam¬ arack and spruce, Perry’s swamp, June to September, Algoma. Dacryomyces chrysocoma Bull. A form resembling a yellow dis- comycete when moist. On old sticks and limbs, Detjen’s woods, Sep¬ tember, Algoma. Dacryomyces deliquescens (Bull.) Duby. On decayed board, Schmeiling’s grove, June, Algoma. Calocera cornea Pers. Growing from cracks on logs and limbs in wet weather. Common at Krohn’s Lake and Schmeiling’s woods, June, Algoma. Guepinia spathularia (Schw.) Fr. On bark, Otto’s woods, Al¬ goma. GASTEEOMY CETES. H YMENOGASTRE AE . Hymenogaster rufus Vitt. Resembles a young puff-ball; 3 cm. broad, whitish, changing to lilac-purple without and within when bruised. The gleba is white, masked by an immense number of rusty- brown spores. The spores are roughly reticulated, subglobose or blunt- elliptical, 7 x 8-8.5 microns, with a blunt hyaline apiculus 1.5 microns long, and a large central oil globule 3-4 microns in diameter. Among needles, Schmeiling’s woods, September, Algoma. Bresadola vid. Rhizopogon roseum Bres. in litt. This plant differs from R. ruhescens in the character of the peridium and spores. The peridium is persistent, smooth, dark brown, devoid of adhering branched fibres. The cavities are minute. The spores are 3.5 x 12-13 microns. In sandy soil, partially exposed, under pine near “Stand rock,” August, Kilbourn. PHALLOIDEAE. Dictyophora duplicata (Bose.) Fischer. The pileus is very coarsely reticulated. The veil varies in length from 1 to 4 cm. In sand roads, swamps, and near stumps in wmods. Common. Blahnik’s grove, August, Algoma; Flunos’ pasture, June, Mauston. Ithyphallus Ravenelii (B. & C.) Fischer. The denuded pileus is scarcely wrinkled, not at all reticulated. There is a short, non-per- forated veil which extends about one-third the length of the pileus and Bodge — Fungi from the Region of Keivaunee Co., Wis. 839 can be seen by making a section of the pileus. The tapering stipe and characteristic pileus are shown by Lloyd, Myc. Notes, PI. 115, Atkinson, Mushrooms, PI. 74, fig. 202, 1900. Algoma. Phallogaster saccatus Morg. The hymenophore is composed of irregularly anastomosing bars and bands, pink or lilac. Spore mass green, foul smelling. On decayed poplar log, Fluno’s woods, July, Maus- ton. LYCOPERDACEAE. Calvatia caelata (Bull.) Morg. These puff-balls are usually beaker-shaped as figured by Hollos, Gast. Ungar., PI. id, the young forms having well developed rhizomorphs, PI. 15, fig. 12. The roughly warted or cracked peridium is not constant. Lloyd, Gast., PI. 36 and fig. 39 , shows the external markings. The sterile portion occupies one-half to three-fourths of the plant. Along roads and in pastures, September, Algoma. Common. Calvatia craniiformis (Schw.) Fr. The greenish-yellow spores and the greater proportion of the sterile base distinguished this plant from C. cyathiformis. There is no resemblance to a cranium. Schmeil- ing’s pasture at the edge of woods, August, Algoma. Calvatia cyathiformis (Bose.) Morg. The lilac-purple spores are echinulate and larger in diameter than the capillitial threads. The sterile portion occupies only a small part of the base. Perry’s pasture September, Algoma. Calvatia gigantea Batsch. Specimen 33 cm. across collected by Melvin Perry in the woods. The spores are light rust-colored. The sterile portion is small. M. Perry’s woods, September, Algoma. Lycoperdon cepaeforme Bull. In dry sterile places in pasture,. Mile Bluff, July, Mauston. Peck vid. Lycoperdon cruciatum Roth. Among moss and grass in swamps, under tamarack, September, Algoma. Lycoperdon gemmatum Batsch. Common. On the ground and: on decayed logs, Algoma. Lycoperdon perlatum Pers. Seems to be a species quite distinct from L. gemmatum. The manner in which the peridium tapers to a well-formed stipe is very characteristic. Cespitose, in sandy soil, Thompson’s woods, July, Mauston. Peck vid. Lycoperdon pusillum (Batsch.) Fr. Devine’s woods among grass, August, Algoma. Lycoperdon pyriforme Fr. Common. On logs and stumps, Det- jen’s woods, August, Algoma. Lycoperdon umbriimm Pers. In swamps after rains, under cedar and tamarack, Ahnapee river, September, Algoma, Peck vid. 840 Wisconsin Academy of Sciences, Arts, and Letters. Lycoperdon Wrightii B. & C. Peridium is white, covered with rough polygonal warts. Figured in Mycologia, November, 1909. Sandy soil, Mile Bluff, June, Mauston. Bovista pila B. & C- Common in all pastures, September, Al- goma. Bovista plumbea Pers. Rare. F. Robinson’s pasture, June, Mauston. Geaster hygrometricus Pers. The rough spores and branched capillitium of this species have been made the basis of a genus, As- traeus, Morgan. On ground, Fish Creek, August. Not common. Geaster limbatus Fr. This is often described as a black Geaster, but that is the color of only the inner peridium. Hussey, Illust., fig¬ ures a form in Plate 2 which has a light gray inner peridium. Krohn’s Lake, August, Algoma. Geaster minimus Schw. The peristome and sharp beak are char¬ acteristic. Perry’s swamp, August; Belgian settlement, September, Kohlberg. Geaster rufescens Fr. Common. Krohn’s Lake, August, Algoma. Geaster pectinatus Pers. The inner peridium tapers into a slen¬ der pedicel which has a distinct collar at the base, and is marked by several striae or ridges as figured by Lloyd, Geastrae, p. 15, figs. 20 22, and Hollos, Gast. Ungar., PI. 8. Both writers report that the species is a rare one. Along lake bank, Alaska, August, 1905; on upturned stump, Krohn’s Lake, August, Algoma, 1909. Geaster saccatus Fr. Well illustrated by Lloyd, Geastrae, fig. 74, for a variety of this species. Otto’s woods, June, Algoma. Geaster triplex Jung. This is the most common Geaster at Al¬ goma. Schmeiling’s woods, August. . X I DU L ABIE AE . Crucibulum vulgare Tul. Common. On old sticks and on cow dung, Warners’ grove, August, Algoma; Mile Bluff, June, Mauston. Cyathus striatus Hoffm. Grows in dense clusters on old wood, Trumble’s ravine, June, Mauston. These were of the form figured by Rolland, Atlas Champ., PI. 109, fig. 246. A much less strigose form nearly gray in color was found in a garden, Fellows’, June, Algoma. Cyathus stercorarius Schw.) DeTon. On dung, Mile Bluff, Mauston. Cyathus vernicosus DC. Common. In grain fields, Algoma. Dodge — Fungi from the Region of Keivciunee Co., Wis. 841 SCLERODERMEAE. Scleroderma cepa Pers. A Wisconsin plant is figured by Lloyd, Myc. Notes., p. 72, PI. SI. The outer surface is smooth and dark col¬ ored. The peridium is thick and hard. Seems to prefer growing along beds of gullies formed in ravines by spring freshe'ts. Trumble’s, June to September, Mauston. Bresadola vid. Scleroderma tenerum Berk. ($. verrucosum minor Bres. in litt.) . The peridium is soft and thin, the outer surface covered with delicate scales. The color varies from white to purplish when bruised. Ripe specimens are 0.5 cm. to 2 cm. broad. The spore mass may be lilac- purple or rust-colored depending on how wet they are or in what state of decay. Common. In grass under oak and on rich bogs under wil¬ low, Fluno’s bluff, June, Mauston. Scleroderma verrucosum Pers. Not common. Melchior’s grove, October, Algoma. Scleroderma aurantium Pers. ($. vulgar e Fr.). Some forms have no suggestion of a yellow color. Hussey, Illust., PI. 17, and Gil- let Champ. Fr., figure these rough varieties which grow in beds of Polytrichum, Fluno’s woods, June to August, Mauston. The New York plants are deep golden yellow, writk‘ much' thinner peridium and a longer stipe. Mycenastrum corium Desv. The outer peridium cracks into areas about one centimeter broad. The hollow shell remains a long time after the spores have all escaped. In pasture lands, along lake bank, September, Algoma. Secotium acuminatum Mont. Rare. Alaska Lake, Alaska, Sep¬ tember. ASCOMYCETES. Elaphomyces granulatus Fr. Fresh specimens of this species were found by Richard Detjen about January 1, while engaged in uprooting alders. He reported that as the alders were very large he thought the fungus was buried about six inches beneath the surface. The only other specimen reported for the state was collected at Superior by E. M. Gilbert. This latter specimen was infected with Cordyceps. Algoma. Nectria episphaeria (Tode) Fr. Parasitic on a species of Valsa on limbs of Fagus, Blahnik’s woods, August, Algoma. Distributed as no. 585c, Rehm, Ascom. Exs. Rehm vid. 842 Wisconsin Academy of Sciences , Arts , and Letters . Nectria cinnabarina (Tode) Fr. On old limbs of frondose trees, Schmeiling’s grove. August, Algoma. Nectria peziza (Tode) Fr. On decayed stumps, Detjen’s pasture, June, Algoma; Cory’s lawn, June, Madison. Sphaerostilbe cinnabarina Tul. In this species the perithecia were thickly scattered over the bark at the base of a stump. Well developed spores were found in the perithecia, but there was no evi¬ dence of a conidial form present. In cemetery woods. May, . Madison. Rehm vid. Seaver vid. Hypomyces apiculata Pk. On old leaves and rubbish, Krohn’s Lake, August, Algoma. Seaver vid. Hypomyces aurantius (Pers.) Tul. Completely covered large specimens of Polyp or us frondosus which were in a foul state of decay, cemetery woods, June, Madison. Hypomyces chrysospermus Tul. On Boletus scaber, B. chry senior on and B. subtomentosus. Specimens of Boletus bearing this fungus were frequently found firmly attached to roots of stumps or old sticks by the white mycelium covering the caps. If fresh specimens are left in the collecting basket a few hours, the fungus will attach itself to the basket. Common, June to September, Algoma. Seaver vid. Hypomyces lactifiuorum Schw. A large number of specimens of Russula delica were found in all stages of infection by this fungus, which is said to attack species of Lactarius. Uninfected plants had a mild taste and possessed no milk, and as the series between these and the fully infected forms was complete, there seems to be little doubt as to the identification. Among needles, sandy soil. Mile Bluff, August, Mauston. Hypomyces lateritius (Fr.) Tul. On Lactarius zonarius (La¬ marck) Fr., Dewey’s springs, August, Algoma. Hypomyces polyporinus Pk. On Polyporus versicolor, Krohn’s Lake, August, Algoma. Seaver vid. Hypomyces torminosus (Mont.) Tul. Common on Lactarius tor - minosus, September, Blahnik’s woods, Algoma. Hypocrea aurantiaca Pk. Specimens of Polyporus chioneus bear¬ ing this fungus vary in color from light yellow to deep purplish red. Krohn’s Lake, August, Algoma. Hypocrea sulphurea Schw. On old limbs, Schmeiling’s grove, August, Algoma. Seaver vid. Claviceps purpurea (Fr.) Tul. On rye, Kumm’s, Forestville. Cor dy ceps militaris (L.) Link. Growing from pupa within a cocoon buried under bark of coniferous log, Perry’s swamp, August, Algoma. Cordyceps militaris form Isaria farinosa Fr. On pupae of small moths (?), among needles in swTamps, Ahnapee river, September, Al¬ goma. Bodge — Fungi from the Region of Kewaunee Co., Wis . 843 Pleurage albicans (A. & S.) Griff. [Sordaria coprophila (Fr.) C. & DN.]. Immature specimens abundant on cow dung, Dewey’s springs, August, Algoma. Rehm vid. Pleurage vestita (Zopf) Griff. The spores are bluish black when mature, one end having a cylindrical appendage as long as the spore, the opposite end with several scarcely visible appendages. On cow dung, Schmeiling’s grove, August, Algoma. Sporormia minima Auersw. On cow dung, very common, Schmeil¬ ing’s grove, July, Algoma. Kosellinia aquila (Fr.) DN. var. glabra Sacc. On old twigs and limbs, Krohn’s Lake, August, Algoma. Rehm vid. Hypoxylon coccineum Bull. On limbs of Fagus, Krohn’s Lake, Au¬ gust, Algoma. Rehm yid. Hypoxylon coccineum, form Institale acariforme Fr. On decayed alder (?), Blahnik’s swamp, August, Algoma. Hypoxylon rubiginosum (Pers.) Fr. On old limbs in alder swamp. Perry’s, December, Algoma. Rehm vid. Daldinia concentrica (Bolt.) Ces. & DeNot. On old stumps and logs, common, June to September, Algoma. Plowrightia morbosa (Schw.) Sacc. On wild species of Prunus, June, Algoma. Ustulina vulgaris Tul. On hemlock stumps, common, Krohn’s Lake, August, Algoma. Rehm vid. Xylaria corniformis Fr. On decayed hemlock roots, Krohn’s Lake, August, Algoma. Rehm vid. Xylaria corniformis, form Isaria flabelliformis Schw. Very com¬ mon on old sticks, Schmeiling’s, July, Algoma. Xylaria digitata (L.) Grev. The conidial stage resembles in form X. corniformis , fruiting stage. On old roots, common, Blahnik’s woods, July, Algoma. Rehm vid. Xylaria hypoxylon (L.) Grev. Completely covering decayed oak log, and on the ground underneath. Loomis’ woods, July, Mauston. Xylaria polymorpha (Pers.) Grev. On stumps, Froemming’s lawn, August, Algoma. Rehm vid. Scorias spongiosa Schw. This fungus grows on alder infected with the alder blight, Schizoneura tessellata Fitch. Large masses of it are often found beneath the trees from which they have fallen. Abundant after a season of wet weather, Ihlenfeld’s woods, October, Algoma. 844 Wisconsin Academy of Sciences, Arts, and Letters. MYXOMYCETES. Arcyria incarnata Pers. Stony creek, October, Foscora; Fluno’s bluff, June, Mauston. Arcyria magna Rex. The ash-gray, tawny-gray sporangia are un¬ like any other of this region in color. On maple tree, corner West Johnson and Park streets, July, Madison. Arcyria nutans (Bull.) Grey. Heineman’s woods, June, Maus¬ ton, September, Foscora. Arcyria punicea Pers. Macbride makes this A. denudata (L.) Sheldon. Schmeiling’s grove, September, Algoma. Badhamia papaveracea Berk. & Rav. Stony Creek, October, Fos¬ cora. Badhamia utricularis (Bull.) Berk. Tornado, September, Kohl- berg. Rare. Cribraria aurantiaca Schrad. Stony creek, August, Foscora. Cribraria dictidyoides Cooke & Balf. Mile Bluff, June, Mauston; Stony Creek, July, Foscora. Ceratiomyxa fruticulosa (Muell.) Macb. Common on wet logs, June, Algoma. Biachea leucopoda Bull. & Rost. Shaw’s woods, September, Fos¬ cora. Enteridium rozeanum (Rost.) Wingate. The aethalium is 2 x 3 cm. across and 4 mm. thick. The hypothallus is white, 4 mm. wide. The spores are ferruginous, 7-9 microns, reticulated only on about three-fourths of the surface. On bark, Dells, May, Kilbourn. Fuligo varians Sommf. One specimen 25 cm. broad and 2 cm. thick w^as found on sawdust in icehouse, June, Mauston; common at Algoma. Fuligo violacea Pers. The aethalium is covered with a yellowish cortex, and the spores are purple-violet. McBride, N. Am. Slime Moulds, p. 24, reports that this species occurs everywhere but probably not distinguished from the preceding. On wood, June, Algoma. Hemiarcyria rubiforniis (Pers.) Rost. On oak and poplar bark, Dells, May, Kilbourn; common at Algoma. JLeiocarpus fragilis (Dicks.) Rost. On elm leaves and decayed wood, June to September, Algoma and Mauston. JLindbladia effusa (Ehr.) Rost. Fluno’s woods, June, Mauston. Bycogala epidendron (Buxb.) Fr. On old limbs, Ahnapee river swamp, September, Algoma. Jjycogala flavo-fuscum (Ehr.) Rost. Several large aethalia, 3-5 cm. long, which had grown the preceding summer, were collected Dodge — -Fungi from the Region of Kewaunee Go., Wis. 845 from a maple tree on which two other somewhat rare slime moulds, Arcyria magna and Reticularia lycoperdon, had been found. This tree is thoroughly infected with several other species of fungi. March, Madison; common on oak and maple, Mauston and Algoma. Reticularia lycoperdon (Bull.) Macb. July, Madison. Stemonitis Morgan! Pk. Schmeiling’s woods, September, Algoma. Stemonitis Smithii Macb. Mile Bluff, Mauston. Tilmadoche virdis (Bull.) Sacc. Hale’s woods, June, Mauston; Warner’s grove, October, Algoma. Trichia fallax Pers. Stony creek, October, Foscora. Tricilia favoginea (Batsch.) Pers. Shaw’s woods, September, Foscora. Tubifera ferruginosa (Batsch.) Macb. On same log with Lindbladia effusa, Fluno’s woods, June, Mauston. Tubifera stipitata (Berk. & Rav.) Macb. No. 417, Campus woods, June, Madison. TRANSACTIONS OF THE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS * VOL. XVII, PART II, NO. 2 MADISON, WISCONSIN O14 CONTENTS Page A Provisional List of the Parasitic Fungi of Wisconsin J. J . Davis- 846 Preliminary Report on a Collection of Ilepaticae from the Duluth-Superior District . George' II. ('o 'nklin, 985 The annual half- volume of the Transactions of the Wisconsin Academy of Sciences; Arts, and Letters is issued in six numbers, under the editorial supervision of the Secretary. The price of this number is 50c. 846 Wisconsin Academy of Sciences , Arts , and Letters. A PROVISIONAL LIST OF PARASITIC FUNGI IN WISCONSIN. J". J. Davis. The first enumeration of Fungi of Wisconsin of which I have knowledge, was published in the Deport of the Geological Sur¬ vey of Wisconsin 1873-9. It was. prepared by A. F. Bundy, M. D., and about thirty of the species there listed are parasitic. As Dr. Bundy’s collections were afterwards destroyed by fire this list has not been taken into account in subsequent enum¬ erations. In the Transactions of the Wisconsin Academy of Science, Arts and Letters, vol. 6, 106-144 (1884) a Prelim- nary List of Parasitic Fungi of Wisconsin appeared which was prepared by William Trelease, S. D., at that time Professor of Botany in the University of Wisconsin. Lists supplementary to this, prepared by the writer, were published through the same medium in vols. 9 , 153-188 (1893) 11, 165-178 (1897) Ilf, 83-106 (1903) and 16, 739-772 (1909). A demand hav¬ ing arisen for the replacement of these lists, some of which are now unobtainable, by a single list with a single host index, which should embody the present knowledge of the parasitic fungus flora of the state, the following enumeration has been made. It is a compilation of the Preliminary List of Dr. Tre¬ lease and the lists supplementary thereto1 with some changes that seem necessary to bring it more nearly into accord with present knowledge and practise. The opportunity has been used for additions founded, upon material collected since the last supplementary list was issued. The specimens upon which the previous lists were founded .are in part in the herbarium of Dr. Trelease at the Missouri Davis — A Provisional List of Parasitic Fungi. 847 Botanical Garden, St. Louis, Mo., and in part in my own her¬ barium which is now at the University of Wisconsin, with a few exceptions noted in the original entries. The more recent additions are based on specimens in the herbarium of the Uni¬ versity of Wisconsin or in that of the Wisconsin Agricultural Experiment Station, or in both. The nomenclature of the hosts is that of Gray’s Mew Manual of Botany, 7th edition and emendations made by the authors of the Manual in Rhodora 11, 33-61, (March, 1909). The authorities for the host names have been omitted as they can readily be found, if desired, in these publications. The arrangement of the species under the genera is in the order in which the hosts appear in the classifi¬ cation and under each species its hosts are enumerated in the same order. As some time may elapse before another general list is at¬ tempted this one has been made as concise as possible ; all extraneous matter in the way of notes and comments, which might later become superfluous, being rigidly excluded. It is hoped that this list will be of service both to those to whom the parasitic fungi are interesting forms of life with peculiar vital relations and to those who view them more espe¬ cially as disease-producing organisms and that with this new point of departure the acquisition of knowledge of the para¬ sitic fungus flora of Wisconsin will be accelerated. Corrections and additions will be gratefully received with a view to future publication. I wish to thank Dr. J. C. Arthur and Dr. E. D. "Kern of Purdue University for expert assist¬ ance in the Uredinales. University of Wisconsin Herbarium, Madison, Wisconsin. March, 1912. 848 Wisconsin Academy of Sciences, Arts , and Letters . PHYCOMYCETES CHYTRIDIACEAE SYNCHYTRIUM SCIRPI Davis On Scirpus atrovirens SYNCHYTRIUM ASARI Arth. & Hoi. On Asarum canadense SYNCHYTRIUM AUREUM Schroet. On Ranunculus recurvatus Viola pubescens Geum virginianum canadense Pedicularis canadensis Prenanthes alba SYNCHYTRIUM ANEMONES (DC.) Wor. On Anemone quinquefolia SYNCHYTRIUM DECIPIENS Farl. On Amphicarpa nvonoica PHYSODERMA MENYANTHIS DBy. On Menyanthes trifoliata CLADOCHYTRIUM MACULARE (Wallr.) On Alisma Plantago-aquatica UROPHLYCTIS MAJOR Schroet. On Rumex verticillatus UROPHLYCTIS PLURIANNULATA (B. & C.) Farl. On Sanicula marylandica gregaria Zizia aurea OLPIDIOPSIS SAPROLEGNIAE (Cornu) A. Fisch. On SaproTegnia thuretii ENTOMOPHTHORACEAE EMPUSA AMERICANA Thaxt. On a blue bottle fly. Davis — A Provisional List of Parasitic Fungi. 849 EMPUSA APHIDIS Hoffman On various aphides EMPUSA CULICIS A. Braun On CJiironomus EMPUSA MUSCAE Cohn. On house flies EMPUSA RHIZOPHORA Thaxt. On caddis flies EMPUSA SCIARAE Olive On Sciara EMPUSA GRYLLI Fres. On Caloptenus SAPROLEGNIACEAE SAPROLEGNIA THURETII DBy. On dead flies PERONOSPORACEAE ALBUGO BLITI (Biv.) O. Kuntze On Amaranthus retrvflexus hybridus blvtoides Acnida tuberculata ALBUGO PORTULACAE (DC.) O. Kuntze On Portulaca oleracea ALBUGO CANDIDA (Pers.) O. Kuntze On Lepidium virginicum Capsella Bursa-pastoris Cakile edentula Raphanus sativus (cult.) caudatus (cult.) Brassica alba (cult.) nigra Sisymbrium officinale Radicula palustris Gardamine douglassii 850 Wisconsin Academy of Sciences , Arts , and Letters. ALBUGO TRAGOPOGONIS (DC.) S. F. Gray On Iva xanthifolia Ambrosia artemisiaefolia Artemisia biennis Helianthus annuus Senecio aureus Cirsium muticum arvense Tragopogon pratensis porr'ijolius (cult.) PHYTOPHTHORA THALICTRI Wilson & Davis On Thalictrum revolutum dasycarpum PHYTOPHTHORA INFESTANS (Mont.) DBy. On Solanum tuberosum (cult.) BREMIA LACTUCAE Regel On Lactuca sativa (cult.) canadensis spicata PLASMOPARA HUMULI (Miyake & Takashashi ) On Humulus Lupulus PLASMOPARA PYGMAEA (Unger) Schroet. On Hepatica acutiloba Anemone canadensis quinquefolia PLASMOPARA RIBICOLA Schroet. On Ribes cynosbati oxyacanthoides prostratum triste PLASMOPARA GERANII (Pk.) Berl. & Be? Toni On Geranium maculatum PLASMOPARA OBDUCENS Schroet. On Impatiens pallida biflora Davis — • A Provisional List of Parasitic Fungi. 851 PLASMOPARA VITICOLA (B. & C.) Berl. & De Toni On Psedera sp. indet. VMis labrusca (cult.) vulpina spp. indet. PLASMOPARA AUSTRALIS (Speg.) Swingle On Sicyos angultitus PLASMOPARA HALSTEDII (Farl.) Berl. & De Toni On Eupatorium urticaefolium Solidago riddellii Erigeron annuus Silphium teretiinthinaceum trifoliatum integrifolium perfoliatum Ambrosia art emisiae folia trifida RudbecTcia laciniata Helianthus annuus occidentalis grosse-serratus divaricatus sttrumosus tuberosus Bidens frondosa vulgata connata cernua aristosa Erechtites hieracifolia PERONOSPORA SCHLEIDENI Unger On Allium Cepa (cult.) PERONOSPORA URTICAE (Lib.) DBy. On TJrtica gracilis PERONOSPORA POLYGONI Thuem. On Polygonum scandens PERONOSPORA EFFUSA (Grev.) Rabh. On Chenopodium hybridum album 852 Wisconsin Academy of Sciences, Arts, and Letters . PERONOSPORA OBOVATA Bon. On Spergula arvensis PERONOSPORA ALSINEARUM Caspary On Cerastium nutans PERONOSPORA FICARIAE Tul. On Ranunculus fascicularis pennsylvanicus septentrionalis PERONOSPORA CORYDALIS DBy. On Dicentra cucullaria PERONOSPORA PARASITICA (Pers.) Tul. On Draba caroliniana Lepidium virginicum Raphanus sativus (cult.) Brassica nigra arvensis RacDicula palustris Dentaria laciniata Cardamine douglassvi Arabis laevigata PERONOSPORA POTENTILLAE DBy. On Potentilla monspeliensis Geum canadense macrophyllum strictum rivale Agrimonia parviflora PERONOSPORA RUBI Rabh. On Rubus canadensis PERONOSPORA TRIFOLIORUM DBy. On Medicago sativa (cult.) PERONOSPORA VICIAE (Berk.) DBy. On Pisum sativum (cult.) Vicia americanaf PERONOSPORA EUPHORBIAE Fckl. On Acalypha virginica? Euphorbia maculata Davis — A Provisional List of Parasitic Fungi. 85 B PERONOSPORA FLOERKEAE Kell. On Floerkea proserpinacoides PERONOSPORA ARTHURI Farl. On Oenothera biennis PERONOSPORA HYDROPHYLLI Waite. On Hydrophyllum virginianum PERONOSPORA LOPHANTHI Farl. On Agastache srophulariae folia PERONOSPORA HEDEOMAE Kell. & Sw. On Dracocephalum parviflorum PERONOSPORA SORDIDA B. & Br. On Scrophularia marilandica PERONOSPORA GRISEA Unger On Veronica Anagallis-aquatica peregrina arvensis PERONOSPORA ALTA Fckl. On Plantago major Rugelii PERONOSPORA CALOTHECA D By. On Galium Aparine lanceolatum boreale triflorum PERONOSPORA LEPTOSPERMA DBy. On Artemisia biennis BASIDIOPHORA ENTOSPORA Roze & Cormi On Aster Novae-angliae Drummondii puniceus Solidago rigida SCLEROSPORA GRAMINICOLA (Sacc.) SchroeL On Setaria xtiridis italica 854 Wisconsin Academy of Sciences , Arts, and Letters. PRO TOMYCE TALES PROTOMYCES FUSCUS Pk. On Hepatica triloba acutiloba PROTOMYCES ANDINUS Pat. On Ambrosia trifida art emisiae folia Bidens frondosa connata cernua ASCOMYCETES PYREN OMY CE TALES PERISPORIACEAE PODOSPHAERA OXYACANTHAE (DC.) DBy. On Spiraea salicifolia tomentosa Pyrus coronaria Crataegus oxyacantha spp. indet. Prunus virginiana pennsylvanica pumila ameiiicana spp. indet. (cult.) PODOSPHAERA BIUNCINATA Cke. & Pk. On Hamamelis virginiana PODOSPHAERA LEUCOTRICHA (E. & E.) Salm. On Pyrus Malus SPHAEROTHECA MORS-UVAE (Schw.) B. & C . On Ribes cynosbati americanum Davis — A Provisional List of Parasitic Fungi. 855 SPHAEROTHECA HUMULI (DC.) Burr. On Mitella diphylla Physocarpus opulifoMus Potentilla palustris Geum canadense virginianum macrophyllum Ruins idaeus aculeatissimus tnflorus parviflorus Agrimonia gryposepala striata sp. indet. Rosa spp. indet. Rhus typUlna glabra Epilolium coloratum SPHAEROTHECA HUMULI (DC.) Burr. var. FULIGINEA (Sclilecht.) Salm. On Agastache scrophulariaefolia Prunella vulgaris Veronica virginica serpyllifolia Gerardia grandiflora Pedicularis lanceolata Plantugo major Bidens frondosa connata aristosa Erechtites hieraciffolia Taraxacum officinale Prenanthes alba UNCINULA SALICIS (DC.) Wint. On Salix spp . varii Populus spp . varii UNCINULA NEGATOR (Schw.) Burr. On Psedera sp. indet. Vitis spp. varii 856 Wisconsin Academy of Sciences , Arts, and Letters. UNCINULA CIRCINATA Cke. & Pk. On Acer Saccharum saccharmum rubrum UNCINULA MACROSPORA Pk. On TJlmus americana UNCINULA CLINTONII Pk. On Tilia americana MICROSPHAERA ALNI (Wallr.) Wint. On Corylus americana rostrata Carpinus caroliniana Betula pumila glandulfifera Fagus grandifolia Quercus alba macrocarpa rubra ellipsoidalis Lathyrus palustris venosus ochroleucus Ilex vert,icillata Nem'opanthus mucronata Ceanothus americanus Cornus alternifolia Syringa vulgaris (cult.) Cephalanthus accidentalis Lonicera tatarica (cult.) sullivantii dioica Viburnum acerifolium pubescens Lentago On Quercus rubra -var. EXTENSA (C. & P.) Salm. var. VACCINII (Schw.) Salm. On Kalmia polifolia Epigaea repens Gaylussacia baccata Vaccinium pennsylvanicum canadense Davis — A Provisional List of Parasitic Fungi. 857 MICROSPHAERA EUPHORBIAE (Pk.) B. & C. On Euphorbia corollata MICROSPHAERA GROSSULARIAE (Wallr.) Lev. On Sambucus canadensis racemosa MICROSPHAERA DIFFUSA Cke. & Pk. On Desmodium canescens paniculatum canadense Lespedeza violacea MICROSPHAERA RUSSELLII Clint. On Oxalis “ stricta ” corniculata ERYSIPHE GRAMINIS DC. On Poa pratensis Agropyran repens Gramineae vatfii ERYSIPHE AGGREGATA (Pk.) Farl. On catkins of Alnus incana ERYSIPHE POLYGONI DC. On Polygonum aviculare Ranunculus, delphinifolius abortivus acris Thalictrum dasycarpum Clematis virginiana Caltha palustris Aquilegia canadensis Parnassia caroliniana Lupinus perennis Astragalus canadensis Lathyrus venosus ochroleucus Amphicarpa monoica Geranium maculatum ERYSIPHE GALEOPSIDIS DC. Stachys tenuifolia aspera Chelone glabra 858 Wisconsin Academy of Sciences, Arts, and Letters . ERYSIPHE CICHORACEARUM DC. On Parietaria pennsylvamica Phlox paniculata divaricata DrummondU Hydrophyllum virginianum Lappula virginiana Verbena urticaefolia TeuciMum canadense Scutellaria lateriflora galericulata parvula Plantago major Rugelii Eupatorium purpureum perfoliatum urticaefolium Solidago canadensis Aster divaricatus drummondii laerils lateriflorus puniceus umbeilatus Inula Helenium Ambrosia artemisiaefolia Xanthium sp. indet. HeWopsis scabra Helianthus strumosus Dahlia sp. indet. (cult.) Helenium autumnale Oirsium discolor FHYLLACTINIA CORYLEA (Pers.) Karst. On Carya sp. indet. Corylus americana Ostrya virginiana Carpinus caroliniana Betula alba papyrifera Alnus incana Fagus grandifolia Quercus sp. indet. Hamamelis virginiana Crataegus sp. indet. Davis— -A Provisional List of Parasitic Fungi. 859 Zanthoxylum americanum Celastrus scandens Acer Saccharum Cornus stolonifera Fraxinus pennsylvanica DIMEROSPORIUM COLLINSII (Schw.) Thuem. On Amelanchier $pp. indet. DIMEROSPORIUM CONGLOBATUM (B. & C.) Ell. & Evht. On Arctostaphylos Uvar-ursi PARODIELLA PERISPORIODES (B. & C.) Speg. On Desmodium grandiflorum SPHAERIACEAE GNOMONIELLA CORYLI (Batsch) Sacc. On Corylus americana rostrata GNOMONIELLA FIMBRIATA (Pers.) Sacc. On Carpinus carolirtiana PHYSALOSPORA AMBROSIAE Ell. & Evht. On Ambrosia trifida artemisMfolia CRYPTOSPORELLA ANOMALA (Pk.) Sacc. On Corylus americana SPHAERELLA ZIZANIAE (Schw.) Ellis On Leersia oryzoides SPHAERELLA FRAGARIAE (Tul.) Sacc. On Fragaria virginiana vesca VENTURIA PULCHELLA On Chamaedaphne calyculata VENTURIA DICKIEI (B. & Br.) Ces. & De Not. On Linnaea borealis 860 Wisconsin Academy of Sciences , Arts , and Letters. HYPOCREACEAE HYPOMYCES LATERITIUS (Fr.) Tul. On Lactarius zonarius sp. indet. HYPOMYCES TORMINOSUS (Mont.) Tul. On Lactarius torminosus HYPOMYCES VIRIDIS (A. & S.) Sacc. On an undetermined mushroom HYPOMYCES LACTIFLUORUM (Schw.) Tul. On Russula delica Fr. HYPOMYCES CHRYSOSPERMUS Tul. On Boletus scaber chrysmteron subtomentosus HYPOMYCES AURANTIUS (Pers.) Tul. Oh Polyporus frondosus HYPOMYCES POLYPORINUS On Polyporus versicolor HYPOCREA AUR ANT I AC A Pk. On Polyporus chioneus CLAVICEPS PURPUREA (Fr.) Tul. On Secale cereafte (cult.) Triticum vulgar e (cult.) (Sclerotia only) CLAVICEPS SP. INDET. On Zizania palustris Phalaris arundinacea Oryzopsis racemosa Phleum pratense Agrostis hyemalis Calamagrostis canadensis Koeleria cristata Poa compressa Glyceria nervata Glyceria septentrionalis Davis — A Provisional List of Parasitic Fungi. 861 Agropyron repens Elymus canadensis striatus (Sclerotia only) CLAVICEPS NIGRICANS Tul. On Eleocharis sp. indet. (Sclerotia only) CLAVICEPS JIJNGI Adams On Jmncus nodosus (Sclerotia only) CORDYCEPS CAPITATA (Holmsk.) Lk. On Elaphomyces sp. indet CORDYCEPS HERCULEA (Schw.) Ell. & Evht. On larvae of Lachnosterna? CORDYCEPS MILITARIS (L.) Lk. “On pupae of small moths (?)” EPICHLOE TYPHINA (Pers.) Tul. On Andropogon furcatus Calamagrostis canadensis Koeleria cristata Elymus sp. indet. Hystrix patula HYPOCRELLA SP. INDET. On Podophyllum peltatum Eupatorium urticaefoltum DOTHIDEACEAE B ALANS I A HYPOXYLON (Pk.) Atk. On Calamagrostis canadensis PHYLLACHORA PTERIDIS (Reb.) Fckl. On Pteris aquilina PHYLLACHORA GRAMINIS (Pers.) Fckl. On many grasses PHYLLACHORA CYPERI Rehm On Cyperus Schweinitzti 862 Wisconsin Academy of Sciences , Arts , and Letters. PHYLLACHORA JUNCI (Fr.) Fckl. On J uncus tenuis PHYLLACHORA TRIFOLII (Pers.) Fckl. On Trvfolium pratense repens PHYLLACHORA LESPEDEZAB On Lespedeza capitata DOTHIDELLA TJLMEA (Schw.) E & E On TJlmus americana PLOWRIGHTIA MORBOSA (Schw.) Sacc. On Prunus serotina virginiana pennsylvanica americana MONTAGNELLA HELIOPSIDIS (Schw.) Sacc. On Aster sp. indet. Helianthus sp. indet. MICROTHYRIACEAE ASTERINA RUBICOLA Ell. & Evht. On Rubus idaeus aculeatissimus ASTERINA GAULTHERIAE Curt. On Gaultheria procumbens Arctostaphylos Uva-ursti ASTERINA PLANTAGINIS Ellis On Plantago Rugelii HYSTERIACEAE LOPHODERMIUM PINASTRI (Schrad.) Chev. On Pinus Strobus Banksiana Davis — A Provisional List of Parasitic Fungi. 863 DISCOMYCETALES PEZIZACEAE SCLEROTINIA TUBEROSA Fckl. On Anemone quinquefolia MOLLISIA DEHNII (Rabh.) Karst. On Potentilla monspeliensis PHACIDIACEAE PSEUDOPEZIZA SINGULARIA (Pk.) Pk. On Ranunculus sceleratus pennsylvanicus PSEUDOPEZIZA TRIFOLII (Biv. Bernh.) Fckl. On Trifolium pratense PSEUDOPEZIZA MEDICAGINIS (Lib.) Sacc. On Medicago sativa (cult.) PSEUDOPEZIZA REPANDA (Fr.) Karst. On Galium tinctorium FABRAEA ROUSSEAUANA Sacc. & Bomm. On Caltha palustris RHYTISMA SALICINUM (Pers.) Fr. On Salix spp. varKi RHYTISMA ILICIS-CANADENSIS Schw. On Ilex verticillata Nemopanthus mucronata RHYTISMA ACERINUM (Pers.) Fr. On Acer spicatum Saccharum saccharinum rubrum RHYTISMA PUNCTATUM (Pers.) Fr. On Acer spicatum Saccharum 864 Wisconsin Academy of Sciences, Arts, and Letters. RHYTISMA ANDROMEDAE (Pers.) Fr. On Andromeda glaucophylla RHYTISMA SOLIDAGINIS Schw. On Balidago spp. varii RHYTISMA ASTERIS Schw. On Aster spp. varii STICTIDACEAE KEITHIA THUJ1NA El. J. Durand On Thuya occidentals EXOASCACEAE TAPHRINA JOHANSONII Sadeb. On fruit of Populus tremuloides TAPHRINA COERULESCENS (Desm. & Mont.) Tul. On Quercus rubra coccinea TAPHRINA POTENTILLAE (Farl.) Johans. On Potentilla arguta EXOASCUS ALNI-INCANAE Kuehn On Alnus incana EXOASCUS CERASI Fckl. On Prunus nirginiana EXOASCUS PRUNI Fckl. On fruit of Prunus EXOASCUS DEFORMANS (Berk.) Fckl. On Prunus Persica (cult) l LABOULBENIACEAE LABOULBENIA GYRINIDARUM Thaxt. On ? Gyrinus Davis — A Provisional List of Parasitic Fungi. 865 DEUTEROMYCETES SPHAEROPSIDALES SPHAERIOIDACEAE PHYLLOSTICTA CARICIS (Fckl) Sacc. On Car ex trisperma (?) pennsylvanicus intumescens PHYLLOSTICTA RENOUANA Sacc. & Roum. On Typha laMfolia PHYLLOSTICTA CRUENTA (Fr.) Kickx var. PALLID I OR (Pk.) On Smilacina racemosa stellata — - -var. DISCINCTA (Davis) On Uvularia grandiflora OaJcesia sessilifolia PHYLLOSTICTA TRILLII Ell. & Evht. On Trillium cernuum PHYLLOSTICTA IRIDIS Ell. & Mart. On Iris versicolor PHYLLOSTICTA APICALIS Davis On Salix lucida PHYLLOSTICTA FAGICOLA Ell. & Morgan, On Fag us grandifolia PHYLLOSTICTA QUERCUS Sacc. & Speg. On Quercus alba macrocarpa PHYLLOSTICTA PHOMIFORMIS Sacc. On Quercus alba PHYLLOSTICTA ATRIPLICIS Desm. On Chenop odium album PHYLLOSTICTA NEBULOSA Sacc. On Silene noctiflora 866 Wisconsin Academy of Sciences , Arts , and Letters. PHYLLOSTICTA FATISCENS Pk. On Nymphaea advena PHYLLOSTICTA HAMAMELIDIS Cke. On Hamamelis virginiana PHYLLOSTICTA PYRINA Sacc. On Pyrus cormaria malus PHYLLOSTICTA SEROTINA Cke. On PrUnus serotina PHYLLOSTICTA PRUNICOLA (Opiz ?) Saec. On Prunus serotina nigra PHYLLOSTICTA DESTRUENS Desm. On Prunus virginiana PHYLLOSTICTA DESMODII Ell. & Evht. On Desmodium canescens PHYLLOSTICTA OXALIDIS Sacc. On Oxalis stricta PHYLLOSTICTA MINIMA (B. & C.) Ell. & Evht. On Acer spicatum saccharum rubrum PHYLLOSTICTA NEGUNDINIS Sacc. & Speg. On Acer Negundo PHYLLOSTICTA PAVIAE De'sm. On Aesculus Hippocastanum PHYLLOSTICTA LABRUSCAE Thuem, On Psedera vitacea Vitis vulpina sp. indet. (cult.) PHYLLOSTICTA SPERMOIDES Pk. On Vitis vulpina PHYLLOSTICTA VIOLAE Desm. On Viola sp. indet. Davis — A Provisional List of Parasitic Fungi . 867 PHYLLOSTICTA LUDWIGIAE Pk. On Ludvigia polycarpa PHYLLOSTICTA DODECATHEI Trel. On Dodecatkeon Meadia PHYLLOSTICTA SYRINGAE West. On Syringa vulgaris PHYLLOSTICTA APOCYNI Trel. On Apocynum cannabinum PHYLLOSTICTA DECIDUA Ell & Kell. On Radicula Armoracia Oeum canadense Aralia racemosa Steironema ciViatum Cynoglossum officinale Lappula virginiana Teucrium canadense Scutellaria lateriflora Nepeta hederacea Leonurus cardiaca, S tacky s palustris tenuifoftia Monarda punctata Lydopus unifTorus Mentha arvensis ccmadensis Veronica virgftnica Eupatorium perfoliatum Bidens frondosa Lactuca canadensis PHYLLOSTICTA HORTORUM Speg. On Solanum melongenum (cult.) PHYLLOSTICTA DIERVILLAE Davis. On Dier villa Lomcera PHYLLOSTICTA TINEOLA Sacc. On Viburnum pubescens PHYLLOSTICTA SIMILISPORA Ell. & Davis. On Solidago rigida PHYLLOSTICTA ASTERICOLA Ell. & EvM. On Aster umbellatus 'Wisconsin Academy of Sciences , Arts, and Letters . PHYLLOSTICTA RUDBECKIAE Ell. & Evht. On Rudbeckia laciniata PHYLLOSTICTA LAPPAE Sacc. On Lappa minor PHOMA MELILOTI Allesch. On Melilotus alba PHOMA UVICOLA B. & C. On Vitis (cult.) PHOMA CRYPTICA (Nits.) Sacc. On twigs of Loriicera sp. indet. ASTEROMA VENULOSUM (Walk.) Fckl. On Iris versicolor AMPELOMYCES QUISQUALIS Ces. On various Erysiphaceae ASCOCHYTA SPARTINAE Trel. On Spartdna Michauxiana ASCOCHYTA QUERCUS Sacc. & SpCg. On Quercus spp. indet. ASCOCHYTA RHEI Ell. & Evht. On Rheum rhaponticum (cult.) ASCOCHYTA OXYBAPHI Trel. On Oxybaphus nyctagineus ASCOCHYTA SILENES Ell. & Evht. On Silene antirrhina ASCOCHYTA (?) INFUSCANS Ell. & Evht. On Ranunculus abortivus ASCOCHYTA CLEMATIDINA Thuem. On Clematis virginiana - — - var. THALICTRI Davis. On Thalictrum dioicum ASCOCHYTA PISI Lib. On Pisum saftivum (cult.) Vicia americana villosa (cult.) Davis — A Provisional List of Parasitic Fungi. 869 ASCOCHYTA AMPELINA Sacc. On Vitis vulpina ASCOCHYTA CORNICOLA Sacc. On Cornus Arno mum ASCOCHYTA CASSANDRAE Pk. On Chamaedaphne calyculata ASCOCHYTA LOPHANTHI Davis. On Agastache scrophulariae folia ASCOCHYTA LEONURI Ell. & Dearn. On Lycopus americanus ASCOCHYTA TRELEASEI Berl. & Vogl. On Vernonia novel) or acensis SilpMum integrifolium ACTINONEMA ROSAE (Lib.) Fr. On Rosa blanda rubiginosa DARLUCA FILUM (Biv.) Cast. On various Uredinaceae STAGONOSPORA SMILACIS (Ell. & Mart.) Sacc. On Smilax herbaeea hispida SEPTORIA AQUILINA Pass. On Pteris aquilina SEPTORIA AGROPYRI Ell. & Evht. On Agropymn repens SEPTORIA BREVISPORA Ell. & Davis. On Bromus ciliatus SEPTORIA GRAMINUM Desm. On Panicum depauperatum Setaria viridis Poa annua SEPTORIA BROMI Sacc. On Calamagrostis canadensis Bromus secalinus •870 Wisconsin Academy of Sciences , Arts , and Letters . SEPTORIA EVERHARTII Sacc. & Syd. On Calamagrostis canadensis SEPTORIA PASSERINII Sacc. On Hordeum jubatum SEPTORIA CARICINELLA Sacc. & Roum. On Carex cephalaidea spp. indet. SEPTORIA RIPARIA Pass. On Carex (pennsylvanicaf) SEPTORIA SPICULOSA Ell. & Hoi. On Symplocarpus foetidus p SEPTORIA VIRIDI-TINGENS Curt. On Allium tricoccum SEPTORIA SMILACINAE Ell. & Mart. On Smilacina racemosa SEPTORIA TRILLII Pk. On Trillium recurvatum grandiflorum cernuum declinatum SEPTORIA SALICINA Pk. On Salix lucida SEPTORIA MUSIVA Pk. On Eepulus tremuloides balsam fera deltoides SEPTORIA CORYLINA Pk. On Corylus rostrata SEPTORIA OSTRYAE Pk. On Ostrya virginiana SEPTORIA BETULAE (Lib.) West. On Betula alba papyrifera pumila SEPTORIA ALNIFOLIA Ell. & Evht. On Alnus sp. indet. J)avis — A Provisional List of Parasitic Fungi. 871 SEPTORIA CANNABINA West. On Cannabis sativa SEPTORIA URTICAE Rob. On Laportea canadensis SEPTORIA PILEAE Thuem. On Pilea pumila SEPTORIA PARIETARIAE Davis On Parietaria pennsylvanica SEPTORIA RUMICIS Ellis On Rumex altissimus verticillatus SEPTORIA POLYGONORUM Desm. On Polygonum Hydropiper orientale (cult.) convolvulus cilinode spp. indet. SEPTORIA STELLARIAE Rob. & Desm. On Stellaria longifolia media SEPTORIA CERASTII Rob. & Desm. On Cerastium viscosum SEPTORIA MELANDRII Pass. On Lychnis alba SEPTORIA DIMERA Sacc. On Silene antirrhina SEPTORIA NOCTIFLORA Ell. & Kell. On Silene noctiflora SEPTORIA SILENICOLA Sacc. On Silene stellata SEPTORIA COPTIDIS B. & C. On Copt is trifolia SEPTORIA AQUILEGIAE Sacc. & Penz. On Aquilegia canadensis Wisconsin Academy of Sciences, Arts, and Letters. SEPTORIA PODOPHYLLINA Pk. On Podophyllum peltatum SEPTORIA LEPIDIICOLA Ell. & Mart. On Lepidium virginicum SEPTORIA DENTARIAE Pk. On Dentaria laeiniata Cardamine Douglassii SEPTORIA ALBICANS E. & E. On Saxifraga pennsylvanica SEPTORIA RIBIS Desm. On Riles Cynoslati americanum lacustre prostratum vulgare spp. Met. SEPTORIA GROSSULARIAE (Lib.) West. On Riles sp. indet. SEPTORIA AUREA Ell. & Evht. On Riles odoratum SEPTORIA SALICIFOLIAE (Trel.) Ell. & Evht. On Spiraea salicifolia tomentosa SEPTORIA CRATAEGI Kickx. On Crataegus sp. indet. SEPTORIA GEI Rob. & Desm. On Geum macrophyllum SEPTORIA RUBI West. On Rulus idaeus aculeatissimus occidentalis parviflorus allegheniensis hispidus SEPTORIA AGRIMONIAE-EUPATORII Bomm. & Rousa. On Agrimonia striata sp. indet Davis — A Provisional List of Parasitic Fungi . 878 SEPTORIA ASTRAGALI Desm. On Vicia americana SEPTORIA PISI West. On Pisum sativum (cult.) SEPTORIA PACHYSPORA Ell. & Hoi. On Zanthoxylum americanum SEPTORIA PTELEAE Ell. & Evht. On Ptelea trifoliata SEPTORIA RHOINA B. & C. On Rhus typhina glabra SEPTORIA SACCHARINA Ell. & Evht. On Acer Saccharum SEPTORIA NOLITANGERIS Gerard On Impatiens biflora SEPTORIA HETEROCHROA Desm. On Malva rotundifolia SEPTORIA SPHAERELLOIDES Ell. & Kell. On Hypericum punctatum SEPTORIA VIOLAE Desm. On Viola pubescens sp. indet. SEPTORIA HYALINA Ell. & Evht. On Viola spp. indet. SEPTORIA LYTHRINA Pk. On Ly thrum alatum SEPTORIA LUDWIG IAE Cke. On Ludvigia palustris SEPTORIA EPILOBII Cke, On Epilobium coloratum SEPTORIA OENOTHERAE West. On Oenothera biennis pumflla 874 Wisconsin Academy of Sciences, Arts, and Letters. SEPTORIA OSMORHIZAE Pk. On Osmorhiza claytoni Tmgistylis SEPTORIA UMBELLIFERARUM Kalchb. On Cicuta maculata Oxypolis rigidior SEPTORIA APII (Bri. & Car.) Chester On Apium graveolens (cult.) SEPTORIA SII Rob. & Desm. On Sium cicutaefolium SEPTORIA CRYPTOTAENIAE Ell. & Rau On Cryptotaenia canadensis SEPTORIA CORNICOLA Desm. On Cornus Amomum paniculata alt erni folia SEPTORIA CON SPICUA Ell. & Mart. On Steironema ciliatum lanceolatum guadriflorum SEPTORIA INCRESCENS Pk. On Trientalis americana SEPTORIA BESSEYI Pk. On Fraxinus americana SEPTORIA MENYANTHIS Desm. On Menyanthes trifoliata SEPTORIA ASCLEPIADICOLA Ell. & Evht. On Asclepias incarnata SEPTORIA CONVOLVULI Desm. On Convolvulus sepium Ipomoea purpurea (cult.) SEPTORIA DIVARICATA Ell. & Evht. On Phlox divaricata SEPTORIA VERBENAE Rob. & Desm. On "Verbena urticaefolia ha&tata Davis— A Provisional List of Parasitic Fungi. 875 SEPTORIA SCUTELLARIAE Thuem. On Scutellaria lateriflora versicolor galericulata SEPTORIA DRACOCEPHALI Thuem. On Draco cephalum parviflorum SEPTORIA RRUNELLAE Ell. & Hoi. On Prunella vulgaris SEPTORIA PHYSOSTEGIAE Ell. & EVht. On Physo+t *gia virginiana SEPTORIA GALEOPSIDIS West. On Galeopsis Tetrahit. SEPTORIA STACHYDIS Rob. & Desm. On Stachys tenuifolia asp era SEPTORIA LYCOPERSICI Spe’g. On Lycopersicum esculentum (cult.) SEPTORIA SCROPHULARIAE Pk. On Scrophularia marylandica SEPTORIA WILSONI G. W. Clinton On Chetone glabra SEPTORIA MIMULI Ell. & Kell. On Mimulus ringens SEPTORIA GRATIOLAE Sacc. & Speg. On Gratiola virginiana SEPTORIA VERONICAE Desm. On Veronica virginica? arvensis SEPTORIA LEPTOSTACHYA Ell. & Kell. On Phryma Leptostachya SEPTORIA PLANTAGINIS Pass. On Plantago major SEPTORIA PSILOSTEGA Ell. & Mart. On Galium circaezans tinctorium 876 Wisconsin Academy of Sciences, Arts, and Letters. SEPTORIA CEPHALANTHI Ell. & Kell. On Cephalanthus occidentalis SEPTORIA DIERVILL1COLA Ell. & Evht. On Diervilla Lonicera SEPTORIA SAMBUCINA Pk. On Lonicera hirsuta Sambucus canadensis SEPTORIA CUCURBITACEARUM Sacc. On Gucumis Melo (cult.) Citrullis vulgaris (cult.) Cucurbita maxima (cult.) SEPTORIA SICYI Pk. On Echinocystis lobata SEPTORIA SPECULARIAE B. & C. On 8 pecularia perfoliata SEPTORIA CAMPANULAS (Lev.) Sacc. On Campanula americana apamnoides SEPTORIA LOBELIAE Pk. On Lobelia cardinalis siphilitica spicata inflate SEPTORIA LIATRIDIS Ell. & Davis On Liatris scariosa spicata SEPTORIA SOLIDAGINICOLA Pk. On Solidago caesia' arguta canadensis serotina Aster shortii puniceus umbellatus SEPTORIA DAVISII Sacc. On Solidago canadensis serotina Davis — A Provisional List of Parasitic Fungi. 877 SBPTORIA INTERMEDIA Ell. & Evht. On Solidago si >. indet. SEPTORIA ATROPURPUREA Pk. On Solidago laUfolia Aster macrophyllus Drummandii vinineus SEPTORIA ASTERICOLA Ell. & Evht On Aster Drummondii SEPTORIA ERIGERONTIS B. & C. On Erigeron Philadelphia^ annuus ramosus SEPTORIA ERIGERONTIS BOLTONIAE Webber. On Boltonia aster aides SEPTORIA POLYMNIAE Ell. & Evht. On Polymnia canadensis SEPTORIA SILPHII Ell. & Evht. On Silphiunr integrifolium perfoliatum SEPTORIA BACILLIGERA Wint. On Ambrosia trifida SEPTORIA XANTHII Desm. On Xanthium sp. indet. SEPTORIA RUDBECKIAE Ell. & Hals. On RudbecTcia hirta. laciniata SEPTORIA HELIANTHI Ell. & Kell. On Helianthus annuus grosse-serratus hirsutus strumosus tuberosus spp. indet. SEPTORIA BIDENTIS Saec. On B idens frondlosa 878 Wisconsin Academy of Sciences, Arts, and Letters . SEPTORIA HELENII Ell. & Evht. On Helenium autumnale SEPTORIA CHRYSANTHEMI Allesch. On Chrysanthemum Leucanthemum SEPTORIA CACALIAE Ell. & Kell. On Cacalia atriplicifolia SEPTORIA LAPPARUM Sacc. On Lappa sp. indet. SEPTORIA CIRSII Niessl On Cirsium lanceolatum arvense SEPTORIA COMMONSII Ell. & Evht. On Cirsium muticum SEPTORIA LACTUCAE Pass. On Lactuca sativa (cult.) scariola pulchella SEPTORIA LACTUCICOLA Ell. & Mart. On Lactuca scariola canadensis SEPTORIA NABALI B. & C. On Prenanthes alba PHLEOSPORA CARICIS Ell. & Evht. On Carex (trichocarpa?) PHLEOSPORA ULMI (Fr.) Wallr. On Ulmus amcricana PHLEOSPORA RETICULATA Ell. & Evht. On Lathyrus venosus ochroleucus. PHLEOSPORA CRATAEGI (Kze. & Schm.) Wallr. On Crataegus sp. indet. PHLEOSPORA ACERIS (Lib.) Sacc. On Acer rubrum DILOPHOSPORA ALOPECURI Fr. On Calamagrostis canadensis Davis — A Provisional List of Parasitic Fungi. 879 LEPTOSTROMATACEAE LEPTOTPIYRIUM DRYINUM Sacc. On Quercus alba rubra LEPTOTHYRIUM GENTIANAECOLUM (DC?) Baeumf: On GenMana Andrewsii LEPTOTHYRIUM PERICLYMENI (Desm.) Sacc. - - var. AMERICANUM Ell. & Evht. On Lonicera canadensis obldn&ifolia PIGGOTIA FRAXINI B. & C. On Fraxinus nigra sp. indet (cult.) ENTOMOSPORIUM MACULATUM Lev. var. DOMESTICUM Sacc. On Pyrus americana Amelanchier spicata — - var. CYDONIAE Cke. & Ell. On Amelanchier canadensis spicata ENTOMOSPORIUM THUMENII (Cke.) Sacc. On Crataegus spp. indet. MELANCONIALES MELANCONIACEAE GLOEOSPORIUM CONFLUENS Ell. & Dearn. On Sagittaria lafiifolia GLOEOSPORIUM SALICIS West. On Balix jragilis longifolia GLOEOSPORIUM CARYAE Ell. & Evht. On Carya ovdta 880 Wisconsin Academy of Sciences , Arts , and Letters . GLOEOSPORIUM CORYL1 (Desm.) Sacc. On Corylus americana ro strata GLOEOSPORIUM ROBERGEI Desm. On Carpinus caroliniana GLOEOSPORIUM BETULARUM Ell. & Mart. On Betula nigra alba papyrifera GLOEOSPORIUM FAGI Desm. & Rob. var. AMERICANUM Ell. & Evht. On Fagus grandifolia GLOEOSPORIUM NERVISEQUUM (Fckl.) Sace. On Quercus alba macrocar pa rubra GLOEOSPORIUM SEPTORIOIDES Sacc. On Quercus velutina GLOEOSPORIUM THALICTRI Davis On Thalictrum dasycarpum GLOEOSPORIUM BERBERIDIS Cke. On Berberis vulgaris GLOEOSPORIUM RIBIS (Lib.) Mont. & Desm. On Ribes americanum prostratum vulgar e (cult.) triste spp. indet. GLOEOSPORIUM VENETUM Speg* On Rubus spp. varii GLOEOSPORIUM FRUCTIGENUM Berk. On apples GLOEOSPORIUM FRAGARIAE (Lib.) Mont. On Potentilla ntonspeTiensis GLOEOSPORIUM EVERHARTII Sacc. & Syd. On Vicia americana Davis — A Provisional List of Parasitic Fungi. 881 GLOEOSPORIUM DAVISII Ell. & Evht. On Vida, americana GLOEOSPORIUM LINDEMUTHIANUM Sacc. & Magn. On Phaseplus sp. indet. GLOEOSPORIUM SACCHARINUM Ell. & Evht. On Acer Saccliarum GLOEOSPORIUM APOCRYPTUM Ell. & Evht. On Acer Negundo GLOEOSPORIUM ARIDUM Ell. & Hoi. On Fraxinus americana PESTALOZZIELLA SUBSESSILIS Ell. & Evht. On Geranium maculatum MARSSONINA NECANS (Ell. & Evht.) P. Magn. On Pteris aquilina MARSSONINA APICALIS (Ell. & Evht) P. Magn. On Salix lucida MARSSONINA CASTAGNEI (Desm. & Mont.) P. Magn. On Populus alba tremuloides grandidentata candicans deltoides MARSSONINA JUGLANDIS (Lib.) P. Magn. On Juglans cinerea nigra MARSSONINA MARTINI (Sacc. & Ell.) P. Magn. On Quercus alba macrocarpa rubra MARSSONINA DELASTREI (DeLacr.) P. Magn. On Silene stelldta MARSSONINA CORONARIA (Ell. & Davis) On Pyrus coronaVia 882 Wisconsin Academy of Sciences, Arts, and Letters . MARSSONINA . POTENTILLAE (Desm.) P. Magn. On Potentilla argnta palustris MARSSONINA MELILOTI (Trel.) P. Magn. On MelUotus alba MARSSONINA VIOLAE (Pass.) P. Magn. On Viola sp. indet. MARSSONINA FRAXINI Ell. & Davis On Fraxinus nigra SEPTOGLOEUM SALICINUM (Pk.) Sacc. On Salix pedicellaris SEPTOGLOEUM POTENTILLAE Allesch. On Potentilla palustris SEPTOGLOEUM AMPELOPSIDIS Ell. & EvM. On Psedera sp. indet. SEPTOGLOEUM APOCYNI Pk. On Apocynum androsaemifolium CYLINDROSPORIUM SPARGANII (Pass.) Ell. & EvM. On Sparga?iium eurycarpum CYLINDROSPORIUM CALAMAGROSTIDIS Ell. & EvM. On Calamagrostis canadensis CYLINDROSPORIUM GLYCERIAE Ell. & EvM. On Glyceria nervata CYLINDROSPORIUM TRADESCANTIAE Ell. & Kell. On Tradescantia reflexa CYLINDROSPORIUM BETULAE Davis On Betula pumila CYLINDROSPORIUM THALICTRI (Ell. & EvM.) On Thalictrum dioicum dasycarpum CYLINDROSPORIUM HUMULI Ell. & EvM. On Humulus Lupulus Davis — A Provisional List of Parasitic Fungi . 883 CYLINDROSPORIUM CLEMATIDIS E1L & Evht On Clematis virginiana CYLINDROSPORIUM CIRCINANS Wint. On SanguimaAa canadensis CYLINDROSPORIUM CAPSELLAE Ell. & Evht On Capsella Bursa-pastoris CYLINDROSPORIUM RIBIS Davis On. Rides prostratum vulgare triste sp. indet. CYLINDROSPORIUM RUBI Ell. & Morgan On Rudus idaeus aculeatissimus CYLINDROSPORIUM PADI Karst. On Prunus pennsylvanica serotina virginiana sp, indet. (cult.) CYLINDROSPORIUM SACCHARINUM Ell. & Evht. On Acer Saccharum CYLINDROSPORIUM NEGUNDINIS Ell. & Evht. On Acer Negundo CYLINDROSPORIUM LEPTOSPERMUM Pk. On Aralia hispida nudicauUs CYLINDROSPORIUM ERYNGII Ell. & Kell. On Eryngium yuccifolium CYLINDROSPORIUM CICUTAE Ell. & Evht. On Cicuta maculata CYLINDROSPORIUM ZIZIAE Ell. & Evht. On Zizia cordata CYLINDROSPORIUM APOCYNI Ell. & Evht On Apocynum androsaemifplium CRYPTOMELA CARICIS (Corda) Sacc. On Car ex sp. indet. PESTALLOZZIA KRIEGERIANA Bres. On Epilodium angustifolium 884 Wisconsin Academy of Sciences , Arts , and Letters . HYPHALES MUCEDINACEAE MICROSTROMA JUGLANDIS (Bereng.) Sacc. On Juglans cinerea Carya ovata GLOMERULARIA CORNI Pk. On Cornus canadensis Lonicera canadensis oblongifolia PUSIDIUM PTERIDIS Kalchbr. On Pteris aquilina Aspidium marginale MONILIA CRATAEGI Diedicke On Crataegus spp. indet. MONILIA FRUCTIGENA Pers. On drupes of Prunus americana MONILIA SEAVERI Reade. On Prunus serotina MONILIA . ANGUSTIO'R (Sacc.) Reade On Prunus virginiana OVULARIA DESTRUCTIVA (Phill. & Plowr.) Massee On Myrica Gale asplenifolia OVULARIA OBLIQUA (Cke.) Oud. On Rumex crispus obtusifolius OVULARIA ISARIOIDES Sacc. On Staphylea trifolia OVULARIA PYROLAE Trel. On Pyrola elliptica americana SEPEDONIUM CHRYSOSPERMUM (Bull.) Fr. On Boletus sp. indet. r Davis — A Provisional List of Parasitic Fungi . 885 GONATOBOTRYUM MACULICOLUM (Wint.) Sacc. On Hamamelis virginiana BIDYMARIA DIDYMA (Ung.) Schroet. On Anemone virginiana canadensis Ranunculus recurvatus fascicularis septentrionalis penrvsylv amicus acris SEPTOCYLINDRIUM RANUNCULI Pk. On Ranunculus abortivus SEPTOCYLINDRIUM CONCOMITANS (Ell. & Hoi.) Hals. On Bidens frondosa MASTIGOSPORIUM ALBUM Riess var. CALVUM Ell. & Davis On Calamagrostis canadensis RAMULARIA CANADENSIS Ell. & Erht. On Caret v sp. indet. RAMULARIA ALISMATIS Fautrey. On AMsma Plantago-aquatica RAMULARIA SUBRUFA Ell. & Hoi. On Smilax ecirrhata RAMULARIA DIOSCOREAE E. & E. On Dioscorea villosa RAMULARIA UREDINIS (Voss) Sacc. On Salix frag Ms longifolia with Melampsora & Darluca RAMULARIA ROSEA (Fckl.) Sacc. On Salix discolor petiolaris RAMULARIA URTICAE Ces. On TJrtica gracilis RAMULARIA OCCIDENTALS Ell. & Kell. On Rumex sp. indet. Wisconsin Academy of Sciences , Arts, and Letters. RAMULARIA DECIPIENS Ell & Evht. On Rumex crispus RAMULARIA PRATENSIS Sacc. On Rumex verticillatus RAMULARIA RUFOMACULANS Pk. On Polygonum aviculare ampMbium Muhlenbergii cilinode RAMULARIA ACTAEAE Ell. & Hoi. On Actaea rubra RAMULARIA ARMORACIAE Fckl. On Radicula Armoracia RAMULARIA BARBAREAE Pk. On Barbarea sp. indet. RAMULARIA MITELLAE Pk. On Mitella diphylla RAMULARIA HAMAMELIDIS Pk. On Hamamelis virginiana RAMULARIA TULASNEI Sacc. On Fragaria virginiana vesca RAMULARIA MODESTA Sacc. On FragarMa virginiana RAMULARIA WALDSTEINIAE Ell. & Davia On Waldsteinia fragarioides RAMULARIA ARVENSIS Sacc. On Potentilla monspeliensis anserima RAMULARIA DESMODII Cke. On Astragalus sp. indet. Desmodium sp. indet. Lespedeza sp. indet. RAMULARIA OXALIDIS Farl. On Oxalis sp. indet. Davis — A Provisional List of Parasitic Fungi. 887 RAMULARIA PRINI Pk. On Ilex verticvllata RAMULARIA NEMOPANTHIS Cke. & Pk. On N emoparinithus mucronata RAMULARIA CELASTRI Ell. & Mart. On Celastrus scandens RAMULARIA IMPATIENTIS Pk. On Impaitiens pallida biflora RAMULARIA PUNCTIFORMIS (Schlecht.) v. HohEL On Epilobium angustifolium coloratum RAMULARIA RETICULATA Ell. & Evht. On Osmorhiza claytoni RAMULARIA HERACLEI (Oud.) Sacc. On Heracleum lanatum RAMULARIA STOLONIFERA Ell. & Evht. On Cornus stolonijera alternifolia RAMULARIA EFFUSA Pk. On Vaccinium canadense RAMULARIA MULTIPLEX Pk. On Vaccinium macrocarpon RAMULARIA LYSIMACHIAE Thuem. On Lysimacli\la thyrsiflora Steironema ciliatum (?) RAMULARIA BRUNELLAE Ell. & HoL On Prunella vulgaris RAMULARIA MENTHICOLA Sacc. On Mentha arvensis canadensis RAMULARIA VARIABILIS Fckl. On Verhascum Thapsus RAMULARIA VERONICAE Fckl. On Veronica peregrina 888 Wisconsin Academy of Sciences , Arts, and Letters. RAMULARIA PLANTAGINIS Ell. & Mart. On Plantago cordata Rugelii RAMULARIA VIBURNI Ell. & Evht. On Viburnum Lentago RAMULARIA SAMBUCINA Sacc. On Sambucus racemosa RAMULARIA VIRGAUREAE Thuem. On Solidago latifolia ulmifplia RAMULARIA SEROTINA Ell. & Evht. On SoDidago serotina RAMULARIA ASTERIS (Trel.) Barth. On Aster novae-angliae spp. indet. RAMULARIA RUDBECKIAE Pk. On Rudbeckia laciniata RAMULARIA VARIEGATA Ell. & Hoi. On Petasites palmatus RAMULARIA TARAXACI Karst. On Taraxacum officinale PIRICULARIA GRISEA (Cke.) Sacc. On Panicum sanguinale Setaria italica Leersia virginica PIRICULARIA PARASITICA Ell. & Evht. On Elymus virginYicus Hystrix patula CERCOSPORELLA PYRINA Ell. & Evht. On Pyrus cormaria CERCOSPORELLA APOCYNI (Ell. & Kell.) Trel. On Apocynum androsaemifolium cannabinum CERCOSPORELLA RETICULATA Pk. On Solidago serotiina Davis — A Provisional List of Parasitic Fungi. 889 CERCOSPORELLA CANA (Pass.) Sacc. On Erigeron annuus ramosus canadensis Aster puniceus DEMATIACEAE DICOCCUM NEBULOSUM Ell. & Evht. On Fraxinus americana CLADOSPORIUM AROMATICUM Ell. & Evht. On Rhus glabra CLADOSPORIUM TRIOSTEI Pk. On TrAosteum perfoliatum POLYTHRINCIUM TRXFOLII Kze. On Trifolium pratense repens PASSALORA FASCICULATA (C. & E.) Earl© On Euphorbia corollata FUSICLADIUM RADIOSUM (Lib.) Lindr. On Populus tremuloides grandidehtata FUSICLADIUM DENDRITICUM (Wallr.) Fckl. On Pyrus prunifolia aoronaria Malus FUSICLADIUM DEPRESSUM (B. & Br.) Sacc. On Angelica atropurpurea SCOLECOTRICHUM GRAMINIS Fckl. On many grasses SCOLECOTRICHUM MACULICOLUM Ell. & Kell. On Phragmites communis HELMINTHOSPORIUM TERES Sacc. On Hordeum vulgar e (cult.) 890 Wisconsin Academy of Sciences, Arts, and Letters . HELMINTHOSPORIUM GRAMINEUM On Hordeum vulgar e (cult.) HELMINTHOSPORIUM SATIVUM Pammel, King & Bakke On Hordeum vulgare (cult.) distichon (cult.) HETEROSPORIUM ALLII Ell. & Mart. On Allium canadense CERCOSPORA SEQUOIAE Ell. & Evht. var. JUNIPERI Ell. & Evht. On Juniperus virginiana CERCOSPORA SAGITTARIAE Ell. & Kell. On Sagittaria latfifolia hater ophylla CERCOSPORA ALISMATIS Ell. & Hoi. On Alisma Plantago-aquatica CERCOSPORA CARICINA Ell. & Dearn. On Carex rosea cephaloidea gracillima arctata CERCOSPORA SYMPLOCARPI Pk. On Symplocarpus foetidus CERCOSPORA CALLAE Pk. & Clint. On Calla palustris CERCOSPORA PONTEDERIAE Ell. & Dearn. On Pontederia cordata CERCOSPORA MAIANTHEMI Fckl. On Maianthemum canadense CERCOSPORA SUBSANGUINEA Ell. & Evht. On Maianthemum canadense CERCOSPORA MISSISSIPPIENSIS Tracy & Earle On Smilax hispida CERCOSPORA DIOSCOREAE Ell. & Mart. On Dioscorea villosa Davis — A Provisional List of Parasitic Fungi. 891 CERCOSPORA CYPRIPEDII Ell. & Dearn. On Cypripedium parmfLorum acaule CERCOSPORA BOEHMERIAE Pk. On Boehmeria cylindrica CERCOSPORA AVICULARIS Wint. On Polygonum aniculare erectum CERCOSPORA HYDROPIPERIS (Thuem.) Speg. On Polygonum Hydropiper CERCOSPORA DUBIA (Riess) Wint. On Gheriopodium album Atriplex patula CERCOSPORA BETAECOLA Sacc. On Beta vulgaris CERCOSPORA OXYBAPHI Ell. & Hals. On Oxybaphus nyctagineus CERCOSPORA NYMPHAEACEA Cke. & Ellis On Castalia tuberosa CERCOSPORA SQUALIDULA Pk. On Clematis virginiana CERCOSPORA MERROWAE Ell. & Evht. On lsopyrum biternaturm CERCOSPORA MENISPERMI Ell. & Hoi. On Menispermum canadense CERCOSPORA CAULOPHYLLI Pk. On Caulophyllum thalictr aides CERCOSPORA NASTURTII Pass. On RadicUla palustris CERCOSPORA ARMOR AC I AE Sacc. On Radicula Armoracia CERCOSPORA SEDOIDES Ell. & Evht On Penthorum sedoides 892 Wisconsin Academy of Sciences, Arts, and Letters. CERCOSPORA HEUCHERAE Ell. & Mart. On Heuchera sp. indet. CERCOSPORA RUBIGO Cke. & Hark (?) On Spiraea saUcifolia CERCOSPORA PYRI Farl. On Pyrus arbutifolia melanocarpa CERCOSPORA COMAR I Pk. On Potentilla palustris CERCOSPORA ROSAECOLA Pass. On Rosa Carolina CERCOSPORA CIRCUMSCISSA Sacc. On Prunus serotina CERCOSPORA ZEBRINA Pass. On Trifolium pratense repens hybridum CERCOSPORA DAVIS 1 1 Ell. & Evht. On Melilotus alba CERCOSPORA DESMODII Ell. & Kell. On Desmodium grandiflorum CERCOSPORA VICIAE Ell. & Hoi. On Vicia caroliniana Lathyrus venosus CERCOSPORA TUBEROSA Ell. & Kell. On Apios tuberosa CERCOSPORA MONOICA Ell. & Hoi. On Amphicarpa monoica CERCOSPORA GERANII Kell. & Swingle On Geranium maculatum CERCOSPORA ACALYPHAE Pk. On Acalypha virginica CERCOSPORA RHAMNI Fckl. On Rhamnus alnifolia cathartica Davis — A Provisional List of Parasitic Fungi . 893 CERCOSPORA CEANOTHI Kell. & Swingle On Ceanothus ovatus CERCOSPORA AMPELOPSIDIS Pk. On Psedera sp. indet. CERCOSPORA VITICOLA Sacc. On Vitis vulpina CERCOSPORA MICROSORA Sacc. On TUia americana CERCOSPORA ALTHAEINA Sacc. On Althaea rosea CERCOSPORA GRANULIFORMIS Ell. & Hoi. On Vi'ola spp. indet. CERCOSPORA LYTHRI (West.) Niessl On Lythrum alatum CERCOSPORA OSMORHIZAE Ell. & Evht. On Osnvorhiza longistylis CERCOSPORA SII Ell. & Evht. On Slum cicutaefolium CERCOSPORA ZIZIAE Ell. & Evht. On Zizia aurea CERCOSPORA PLATYSPORA Ell. & Hoi. On Taenidia integerrima CERCOSPORA API I Fres. var. PASTINACAE Farl. On Pastinaca sativa CERCOSPORA EPIGAEINA Davis On Epigaea repens CERCOSPORA CLAVATA (Ger.) Pk. On Asclepias incarnata syrdaca phytolaccoides CERCOSPORA OMPHACODES Ell. & Hoi. On Phlox divaricata CERCOSPORA LIPPIAE Ell. & Evht. On Lippia lanceolata 894 Wisconsin Academy of Sciences , Arts , and Letters. CERCOSPORA RACEMOSA Ell. & Mart. On Teucrium canadense Ambrosia trifida CERCOSPORA PHYSALIDIS Ellis On Physalis pubescens JieteropTiylla CERCOSPORA DIFFUSA Ell. & Evht. On Physats sp. indet. CERCOSPORA PENTSTEMONIS Ell. & Kell. On Pentstemon hirsutus CERCOSPORA GERARDIAE Ell. & Dtfarn. On Gerardia grandiflora CERCOSPORA GAL 1 1 Ell. & Hoi. On Galium Aparine tinctorium CERCOSPORA CEPHALANTHI Ell. & Kell. On Cephalanthus occidentalis CERCOSPORA ANTIPUS Ell. & Hoi. On Lonicera glaucescens hirsuta spp. indet. CERCOSPORA VARIA Pk. On Viburnum Opulus Lentago CERCOSPORA VERNONIAE Ell. & Kell. On Vemonlia i fasciculata CERCOSPORA PERFOLIATA Ell. & Evht. On Eupatorium purpureum perfoliatum CERCOSPORA STOMATICA Ell. & Davis On Solidago latifplia CERCOSPORA GNAPHALIACEA Cke. On Gnaphalium polycepUalum CERCOSPORA HfLIANTHI Ell. & Evht. On Helianthus occidentalis Davis — A Provisional List of Parasitic Fungi. 895 CERCOSPORA UMBRATA Ell. & Hoi. On Bidens connata CERCOSPORA MEGALOPOTAMICA Speg. On Bidens cernua FUMAGO VAGANS Pers. On Salix sp. indet. Quercus alba SARCINELLA HETEROSPORA Sacc. On Lonicera SuUivantii Corylus rostrata Cornus stolonifera STILBACEAE ISARIA ARACHNOPHILA Ditm. On Spiders GRAPHIUM GRACILE Pk. On Rubus idaeus var. aculeatissimus ISARIOPSIS ALBO-ROSELLA (Desm.) Sacc. On Cerastium vulgatum viscosum nutans TUBERCULARIACEAE TUBERCULINA PERSICINA (Ditm.) Sacc. On the aecia of various rusts TUBERCULINA DAVISIANA Sacc. & Trav. On SaMx cordata FUSARIUM HETEROSPORUM Nees. On Glyceria septentrionalis 896 Wisconsin Academy of Sciences, Arts, and Letters . BEMIBASIDII USTILAGINALES USTILAGINACEAE XJSTILAGO OSMUNDAE Pk. On Gsmunda regailis USTILAGO ZEAE (Beckm.) Unger On Euchlaena luxurians Zea mays USTILAGO RABEMHORSTIANA Kuehn On Digitaria sanguinale USTILAGO NEGLECTA Niessl On Setaria glauca USTILAGO STRIAEFORMIS (West.) Niessl On Phleum pratense Ely mus canadensis USTILAGO CALAMAGROSTIDIS (Fckl.) Clinton On Calamagrostis canadensis USTILAGO AVENAE (Pers.) Jensen On Arena sativa (cult.) USTILAGO LEVIS (Kell. & Sw.) Magn. On Arena satira (cult.) USTILAGO PERENNANS Rostr. On Arrhenatherum elatius USTILAGO LONGISSIMA (Sow.) Tul. On Glyceria grandis - var. MACROSPORA Davis On Glyceria septentrionalis USTILAGO SPERMOPHORA B. & C. On Eragrostis hypnoides megastachya USTILAGO MACROSPORA Desm. On Agropyron repens Davis — A Provisional List of Parasitic Fungi. USTILAGO TRITICI (Pers.) Rostr. On Triflicum vulgare USTILAGO HORDEI (Pers.) Kell. & Sw. On Hordeum vulgare USTILAGO NUDA (Jensen) Kell. & Sw. On Hordeum vulgare USTILAGO OLIVACEA (DC.) Tul. On Carex rostrata USTILAGO UTRICULOSA (Nees) Tul. On Polygonum pennsylvanicum USTILAGO OXALIDIS Ell. & Tracy On Oxalis stricta SPHACELOTHECA SORGHI (Lk.) Clinton On Sorghum vulgare SPHACELOTHECA HYDROPIPERIS (Schum.) D By. On Polygonum sagittatum CINTRACTIA CARICIS (Pers.) Magn. On Carex spp. vaVii CINTRACTIA SUBINCLUSA (Koern.) Magn. On Carex lanuginosa lupuMna rostrata var. utriculata CINTRACTIA JUNCI (Schw.) Trel. On J uncus tenuis SCHIZONELLA MELANOGRAMMA (DC.) Schroet. On Carex pennsylvanica SOROSPORIUM SYNTHERISMAE (Pk.) Farl. On Panicum miliaceum (cult.) Cenchrus carolinlanus Wisconsin Academy of Sciences , Arts , and Letters . TILLETIACEAE TILLETIA FOETENS (B. & C.) Trel. On 'Triticum vulgar e (cult.) TILLETIA TRITICI (Bjerk.) Wint. On Triticum vulgar e (cult.) TUBURCINIA CLINTONIAE Kom. On Streptopus roseus UROCYSTIS OCCULTA (Wallr.) Rabh. On Hecale cereal e (cult.) UROCYSTIS AGROPYRI (Preuss) Schrot. On Elymus virginicus canadensis UROCYSTIS CEPULAE Frost On AlUum Cepa ENTYLOMA LINEATUM (Cke.) Davis On Zizania palustris ENTYLOMA CRASTOPHILUM Sacc. On Phleum pratense Agrostis alba vulgaris ENTYLOMA NYMPHAEAE (Cunn.) Setch. On Castalia odor at a tuberosa Nymphaea advena ENTYLOMA MICROSPORUM (Ung.) Schrot. On Ranunculus septentrionalis ENTYLOMA RANUNCULI (Bon.) Schrot. On Ranunculus pennsylvanicus Anemone quinquefolia ENTYLOMA THALICTRI Schrot. On Thalictrum dioicum dasycarpum ENTYLOMA MENISPERMI Farl. & Tr tinct. In that case Trail should be cited as the author. Septoria salicifoliae (Trel.) E. & E. On Spiraea tomentosa the fum gus is epiphyllous and the sporules are barns in acervuli and much 984 Wisconsin Academy of Sciences, Arts, and Letters. resemble those of Septogloeum salicinum (Pk.) Sacc. collected at the same time and place. SepPoria sambucina Pk. The form on Lonicera is probably S. Xylo- stei Sacc. & Wint. Sporules 50-75 x 2/x. Beptoria umbelliferarum Kalchb. There is no apparent reason why the specimens on Gicuta and OxypoUls should have been referred to this species in the supplementary list except that I did not know what to do with them and the inclusive appearance of the specific name. Each host is represented by a single specimen and they do not resem¬ ble each other. TJromyces euphorbiae C. & P. This includes U. proeminens (DC.) Lev. on E. polygonifolia and E. Presin and U. euphorb iicola (B. & C.) Tranz. on E. maculata which are perhaps better considered as races. Puccinia momica (Pk.) Arth. Dr. Arthur informs me that theAeci- dium on Arabis lyrata was collected at Trempealeau, Wis., by J. M. Holzinger in 1890. Phyllosticta simillispora Ell. & Davis. What appears to be this fun¬ gus has been described by Saccardo under the name Leptothyrium tumiduliim n. sp. (Ann. Myc. 10, 3, 312.) These notes are to be continued in a subsequent publication. I have followed the Sydows in MonograpJiia Uredinearum in using the specific name trifolii to designate the TJromyces that occurs on Trifolium pratense. Kern (Phytopathology I: 1, 3 et seq .) and Arthur (N. A. Flora 7: 255) apply it to the form on Trifolium repens and use the specific name fallens for the rust on T. pratense. The proper dis¬ position of the form on Trifolium hybridum is not clear. Morphologi¬ cally it resembles the form on T. repens from which it differs in the absence of an aecial stage as does that on T. pratense. Liro did not succeed in transferring the rust from T. repens to T. hybridum by in¬ oculation. Septoria parietariae Davis (4th suppl. list of paras, fungi of Wis. p. 871) is probably not different from $. urticae var. parietariae Sacc. (Syll. Fung. 16: 971) of which I was not aware when the former name was proposed. Peridermium balsameum Pk. has been shown by Fraser to be, in part at least, the aecial stage of Uredinopsis. Fraser also finds that Caeoma abietis-canadensis is connected with Melampsora on Populus grandi- dentata. The “primary uredo” ( Uredo muelleri Schroet.) occurs on the hosts of Kuehneola uredinis (Lk.) Arth. ( E . albida (Kuehn) Magnus) in Wisconsin and might properly have been designated by the numeral MI” because of its aecial character. The same may be said of Phragmidium potentillae-canadensis Diet, which is placed in Kuehneola by Arthur. Conklin — Preliminary Report on a Collection of Hepaticae. 985 PRELIMINARY REPORT ON A COLLECTION OF HEPA¬ TICAE FROM THE DULUTH-SUPERIOR DISTRICT. STATES OF MINNESOTA AND WISCONSIN. Gteoege H. Conklin, M. D. The specimens in this report, were collected within the terri¬ tory which will hereafter be designated, the Duluth-Superior District. This District is confined by a circle with the Twin Ports, Duluth and Superior as the centre, and the distance of fifty miles more or less as a radius. Such a territory would in¬ clude a part of St. Louis County along the lake shore in Min¬ nesota and the whole of Douglas County, Wisconsin. The north¬ east corner of Carlton County, Minnesota, where the St. Louis Diver enters the dalles near the villages of Thompson and Carl¬ ton, and the vicinity of Lutsen, Cook County, Minnesota, one hundred miles down the north shore, are also included. The St. Louis River divides the District so that the two states of Wisconsin and Minnesota are about equally represented, and so far as observed the hepatic flora is very similar in the states of the District if similar habitat be chosen in collecting. The immediate topography of the two cities, however, is very dissimilar. Duluth, Minn., is situated on the ISTorth Shore Range of Lake Superior. This range extends from Carlton* Minn., on the southwest to the extreme northeast international boundary. This highland parallels the lake shore, and has an altitude varying from 1000 to 1500 feet above sea level. As Lake Superior is 600 feet above the sea, the ran Cephalozia lunulae folia, Riccardia latifrons and Lepidozia reptans are as¬ sociated hepaties. The next year it was found in quantity at South Superior. Some ten years previously a street had been laid out and ditched through a sphagnum balsam swamp, where cranberries and blue¬ berries still grew and bore fruit. During the summer of 19,11 the shady side of the cut peat of this ditch was lined with Mylia anomala, freely gemmiperous but lacking perianth. Ceph. pleniceps and Ceph . lumdaefolia were associated hepat- ics, and Drosera rotundifolia flowered freely among the sphag¬ num at the bottom of the ditch. 36. Lophocolea heterophylla (Schrad.) Durmot. No. 904 Chester Creek, Duluth, Minn., July 20, 1909. No. 630 Knife River, Minn , Aug. 1, 1909. No. 683 Carlton, Minn., Sept. 26, 1909. No. 379 Copper Creek, Douglas Co., Wis., Aug. 29, 1909. No. 760 Superior, Wis., July 18, 1909. No. 1174 Lutsen, Cook Co., Minn., Sept. 1911. 37. Lophocolea minor Nees. No. 655 Carlton, Minn., Sept. 26. No. 673 Black River, Douglas Co., Wis., Oct. 5, 1909. No. 519 French River, Minn., Oct. 5, 1TF09. No. 1192 Lutsen, Cook Co., Minn., Sept. 1911. Eightly named, Lophocolea heterophylla does not belie its appellation in the District. It is the most variable of all the species observed. Side by side the beginner can not believe that the large leaved fruiting plant growing on wet ground can be the same species, as the small bifid leaved, cephalozia-like plant, spreading out its delicate tracery on old bare wood. Learning to recognize the variability of this species, is one of the first real troubles to overcome by the student, for it is exceedingly com¬ mon and effects a great variety of habitat. Lophocolea minor confines itself to rocks along streams, usually of the higher altitudes, and is rather common in such places. It has been found along all the streams which cut the ranges. 1000 Wisconsin Academy of Sciences , Arts , and Letters. 38. Ghiloscyphus pallescens (Ekrk.) Dumort. No. 814 Oneota Ravine, Dulutk, Minn. No. 250 Copper Creek, Wis., Sept. 15, 1902. No. 591 Copper Creek, Wis., Aug. 5, 1806. No. 522 Gordon, Wis., Aug. 1907. 39. Ghiloscyphus polyanthus D. Corda. No. 458 Copper Creek, Wis., Sept. 15, 1902. No. 446 Woodland, Dulutk, Minn., May 30, 1909. No. 814 Knife River, Minn., Aug. 1, 1909. No. 718 Superior, Wis., Sept. 12, 1909. 40. Ghiloscyphus polyanthus rivularis Nees. No. 1013 Winneboujou, Brule River, Wis., Apr. 9, 1910. 41. Harpanthus scutatus (Web. & Mokr.) Spruce. No. 470 Solon Springs, Wis., July 1, 1909. No. 777 Oneota, Dulutk, Minn., July 27, 1909. No. 620 Black River, Douglas Co., Wis., Oct. 5, 1909. No. 822 Knife River, Minn., Aug. 1, 1909. 42. Geocalyx graveolens (Schrad.) Nees. No. 445 Woodland, Dulutk, Minn., May 30, 1907. No. 860 Knife River, Minn., Aug. 1, 1909. No. 1194 Lutsen, Cook Co., Minn., Sept. 1911. No. 1030 Winneboujou, Douglas Co., Wis., April 9, 1910. Chiloscyphus polyanthus has its usual habitat. The variety, rivularis grew in a brooklet draining a dense swamp into the Brule River near Winneboujou, Wis. PelUa Neesiana and C onocephalum conicum were fruiting on the nearby logs and trailing their fronds, into the springy pools. The bed of the brook and submerged twigs and stones were covered with the variety fruiting. When collected again in June 1911 few perianths were found. Chiloscyphus pallescens is found rarely, having been collected in the three localities only. It fruited freely in 1909. Harpanthus scutatus deserves special mention because it oc curs so often in the District in the gemmiperous state. It humps itself into little cushions of pale, upward stems, very different from the ordinary form of growth. These gemmi perous branches resemble quite closely Cephalozia Francisci (Hook.) Dumort. in the crowded, rounded bifid leaves, closely Conklin — Preliminary Report on a Collection of Hepaticae. 1001 appressed to the stem. The subulate underleaves however on the horizontal parts of the stem, distinguishes the plant from the Cephalozia , hut these portions of the stem are often rotted away. The perianth of Cephalozia Francisci as well as its habitat on the ground distinguishes the species from Harpan- ihus scutatus which so far as observed grows on old wood. Geocalyx graveolens grows on old rotten wood preferably buried. At Lutsen the yellowish green color of the colonies distinguished the species at a glance from the vivid bright green of its common associate, Lophogiu incisa. 43. Cephalozia hicuspidata (L.) Dumort. No. 335 Minnesota Point, Duluth, Minn., Sept. 15, 1907. No. 783 Billings Park, Superior, Wis., July 5, 1909. 44. Cephalozia connivens (Dicks.) Dumort. No. 260 Gordon, Wis., Aug. 25, 1907. No. 1166 Lutsen, Cook Co., Minn., Sept. 23, 1911. No. 1017 Solon Springs, Douglas Co., Wis., July 1, 1911. 45. Cephalozia curvifolia (Dicks.) Dumort. No. 270 Cooper Creek, Wis., Aug. 29, 1907. No. 407 Solon Springs, Wis., May, 1907. No. 641 French River Whs., Oct. 3, 1909. No. 222 Albert, Minn., Oct. 1907. No. 865 Knife River, Minn., Aug. 1, 1909. No. 755 Oneota Ravine, Duluth, Minn., July 27, 1909. No. 679 Carlton, Minn., Sept. 26, 1909. No. 1176 Lutsen, Cook Co., Minn., Sept. 1911. 46. Cephalozia lunulae folia Dumort No. 743 Superior, Wis., Sept. 12, 1909. No. 860 Knife River, Minn., Aug. 1, 1909. No. 637 French River, Minn., Oct. 3, 1909. No. 1016 Solon Springs, Wis., July 1, 1909. No. 386 Spirit Lake Minn., Oct. 14, 1906. No. 309 Minnesota Point, Duluth, Minn., Sept. 15, 1907. No. 1172 Lutsen, Cook Co., Minn., Sept. 1911. 47. Cephalozia Macounii Aust. No. 1048 Black River, Douglas Co., Wis. No. 1053 Manitou Falls, Oct. 3, 1911. 1002 Wisconsin Academy of Sciences , Arts , and Letters. 48. Cephalozia pleniceps (Aust.) Lindb. No. 216 Superior, WHs., July 15, 1909. No. 1100 South Superior, Wis., Oct. 3, 1911. No. 1165 Lutsen, Cook Co., Minn., Sept. 23, 1911. No. 1058 Black River, Douglas Co., Wis., Oct. 3, 1910. 49. Cephalozia serriflora Lindb. No. 1048 Black River, Douglas Co., Wis. No. 1053 Manitou Falls. Cephalozia bicuspidata is one of the rare species in the Dis¬ trict. C. lunulae folia is very common on logs, and rotten wood in swamps and dense woods. Cephalozia curvifolia is very common on logs in the forest, preferring bark denuded logs and before the growth of mosses have invaded the host. Large logs have been observed covered with the species, green, brown or reddish in color depending upon the amount of exposure to the sun. Cephalozia pleniceps grows on cut peat on buried stump roots along old paths through cedar swamps. Cephalozia connivens in wet springy places on old wood. Cephalozia Macounii and Cephalozia serriflora collected only once, and growing together, were found thickly covering an old log in one of the most inaccessible places of the Black River gorge at Manitou Falls. Rarest of our tiny plants, they could not have chosen a place of greater security. 50. Cephaloziella myriantha (Lindb.) Schiffn. det. Douin. No. 687 Carlton, Minn., on rocks Sept. 26, 1909. No. 748 Stinson Ave. Swamp. Superior Wis., on ground and stump, Sept. 12, 1909. 51. Cephaloziella Sullivantii (Aust.) Evans, det. Douin. No. 749 Stinson Ave. Swamp, Superior, Wis., Sept. 12, 1909. Many forms of the composite Cephaloziella divaricata (Smith) Dumort. occur in this District. The two species above only have been determined from material sent Prof. Douin. TTntil his mougraph of the genus is available for study the bulk of material remains undetermined. Conklin — Preliminary Report on a Collection of Hepaticae. 1003 Cephaloziella myriantha occurs in the high alpine rocks in full exposure to sun. 52. Calypogeia Nee&iana (Massal & Carest. ) C. Mull. Frib. No. 1157 Winneboujou, Brule River, Douglas Co., Wis., May 7, 1911. No. 1128 Lutsen, Cook Co.,' Minn., Sept. 20, 1911. 53. Calypogeia Trichomanis (L.) S. F. Gray. No. 489 Hill Ave. Swamp, Superior, Wis., Sept. 12, 1909. No. 609 Billings Park, Superior, Wis., Nov. 14, 1909. No. 531 Copper Creek, Douglas Co., Wis., Aug. 5, 1909. No. 289 Solon Springs, Wis., Sept. 16, 1906. 54. Bazzania trilobate (L.) S. F. Gray. No. 160 Solon Springs, Wis., Aug. 26, 1906. No. 313 Gordon, Wis., Sept. 15, 1906. No. 317 Albert, Minn., Sept. 1905. No. 852 Knife River, Minn., Aug. 1, 1909. No. 565 Copper Creek, Wis., Aug. 5, 1909. No. 646 French River, Minn., Oct. 3, 1909. No. 1167 Lutsen, Cook Co., Minn., Sept., 1911. 55. Lepidozia reptans (L.) Dumort. No. 611 Billings, Park, Superior, W|is., July 5, 1909. No. 859 Knife River, Minn., Aug. 1, 1909. No. 216 Copper Creek, Wis., Aug. 24, 1907. No. 420 Chester Creek, Minn., May 11, 1907. No. 1173 Lutsen, Cook Co., Minn., Sept., 1911. 56. BlepTiarostoma trichophyllum (L.) Dumort. No. 580 Copper Creek, W’is., Aug 5, 1909. No. 778 Oneota, Duluth, Minn., July 27, 1909. No. 913 French River, Minn., Oct. 3, 1909. No. 838 Knife River, Minn., Aug. 1, 1909. No. 659 Carlton, Minn., Sept. 26, 1909. No. 734 Superior, Wis., Sept. 12, 1909. No. 1179 Lutsen, Cook Co., Minn., Sept., 1911, and Black River, Wis. 57. PtilidivM eiUare (L.) Nees. No. 690 Carlton, Minn., Sept. 26, 1909. No. 588 Copper Creek. Wis., Aug. 5, 1909. No. 1198 Lutsen, Cook Co., Minn., Sept., 1911. .1004 Wisconsin Academy of Sciences, Arts, and Letters. 58. Ptilidium pulcherrimum (Web.) Hampe. No. 917 Gordon, Wis., Sept. 15, 1908. No. 730 Superior, Wis., Sept. 12, 1909. No. 10Z0 Albert, Minn., Sept., 1905. No. 1021 Lester Park, Duluth, Minn., Oct. 17, 1906. No. 682 Carlton, Minn., Sept. 26, 1909. No. 166 Solon Springs, Wis., Aug. 26, 1906. N. 792 Oneota, Duluth, Minn., Aug. 15, 1909. No. 1199 Lutsen, Cook Co., Minn., Sept. 23, 1911. Calypogeia Trichomanis is not common. It prefers a gravel or sandy clay bank. C. Neesiana grows in swamps on wood or sphagnum, or woody peat, near wet springy bogs. Blepharostoma trichophyllum is usually found on logs mixed with other hepatics and mosses, but at the higher altitudes it grows on the ground along wood paths and at Black River, Wis., it was found in quite pure patches on the hat rocks one half way up the falls in the higher beds of the streams, where in high water it would, for a while, be submerged. Ptilidium pulcherrimum is one of the most common hepatics of the District. It grows on old wood, and rocks, and humus soil which usually covers the remains of an old log or stump. P. ciliare is found at the higher altitudes growing on the ground among rocks where it forms little cushions of upright growth of an inch or more in thickness. Bazzania trilob ata is common, and grows spreading out over the perpendicular surfaces of rocks, or mossy banks. In the swamps it grows in large tufts on the ground with usually a substratum of rock. Lepidozia reptans is the ubiquitous hepatic of the District and grows everywhere except on the trunks of living trees. 59. Trichocolea tomentella (Ehrh.) Dumort. No. 1198 Winneboujou, Brule River, Douglas Co., Wis., in wet sphagnum swamp. May 20, 1911. 60. 8 capania apiculata Spruce. No. 530 Copper Creek, Wis., Aug. 5, 1909. No. 1004 Wentworth, Douglas Co., Wis., Oct. 19. 1910. No. 152 Spirit Lake, Duluth, Minn., Oct. 14, 1907. Conklin — Preliminary Report on a Collection of Hepaticae. 1005 No. 382 St. Louis Bay, Superior, Wis., Aug., 1905. No. 1120 Lutsen, Cook Co., Minn., Sept. 20, 1911. 61. Scapania curta (Mart.) Dumort. No. 738 Superior, Wis., Sept. 12, 1909. No. 75'0 Oneota, Duluth, Minn., June 27, 1909. No. 651 Carlton, Minn., Sept. 26, 1909. No. 711 French River, Minn., Oct. 3, 1909. No. 635 Black River, Douglas Co., Wis., Oct. 5, 1909. No. 836 Knife River, Minn., Aug. 1, 1909. No. 899 Chester Creek, Duluth, Minn., July 20, 1909. No. 390 Copper Creek, Douglas Co., Wis., Oct., 1907. No. 1193 Lutsen, Cook Co., Minn., Sept., 1911. 62. Scapania glaucocephala (Tayl.) Aust. No. 620 Black River, Douglas Co., Wis., Oct., 1909. No. 1112 Solon Springs, Douglas Co., Wis., Aug. 6, 1911. No. 1195 Lutsen, Cook Co., Minn., Sept. 20, 1911. 63. Scapania irrigua (Nees.) Dumort. No. 735 Superior, Wis., Sept. 12, 1909. No. 1019 Superior, Wis., Oct. 20, 1908. No. 1009 Black River, Douglas Co., Wis., Oct. 3, 1910. 64. Scapania nemorosa (L.) Dumort. No. 643 Biack River, Douglas Co., Wis., Oct. 5, 1909. No. 911 Oneota Cliff, Duluth, Minn., July 27, 1909. 65. Scapania uml)rosa (Schrad.) Dumort. Nos. 347-825-827 Knife River, Minn., Aug. 1, 1909. 66. Scapania undulata (L.) Dumort. No. 1156 Lutsen, Cook Co., Minn. The Scapaniae have been the most interesting species to stud/ in the Duluth-Superior District. S. apiculata grows on hare moist wood not too old, in a spreading layer, usually gemmiperous and conspicuously alone. It was collected at Spirit Lake however in a thin mat, covering an old log, much mixed with mosses and Harpanthus scutatvs . In this instance the plants were crowded and upright and had much enlarged upper leaves on the fruiting branch es. S. curia is verv common in the rock crevices of all the streams cutting the hTorth Shore and Copper Ranges. It also occurs on wood in the old swamps adjacent to Superior and on old logs 1006 Wisconsin Academy of Sciences, Arts, and Letters. in deep woods about Solon Springs, W£s. It is very variable in size. S. irrigua is strictly a bog plant, and is common in suitable places. It undoubtedly occurs in the Minnesota swamps, but has not yet been collected from the State. S. glaucocephala , reported also from Minnesota by Prof. Hoizinger in 1897 has occurred but rarely in this collection. It was found at Black River in the upland woods of the gorge, growing on old wood associated with gemmiperous form of Earpanthus scut at us and Jamesonievilla autumnalis, — also at Wentworth, Wis. It has been found only at higher altitudes of the District. At Lutsen it was collected in quantity, grow¬ ing on old bare wet logs in deep woods. S. nemorosa is not common. It is found sparingly along mossy banks of the rock streams. In one locality however, at Oneota Cliff, Duluth, Minn., it grows in abundance, covering the perpendicular wall of rock to a considerable extent. S umhrosa is the rarest of the Scapaniae in the District. A few plants only were found on the cliff one mile up stream from Knife River, St. Louis County, Minn. 8. undulata has been observed but once at Lutsen, growing with the rare J. sphaerocarpa on rocks in a small brooklet drain¬ ing a cedar swamp. 67. Radula complanata Dumort. No. 573 Copper Creek, Wis., Aug. 5, 1901), on rocks. No. 751 Knife River, Minn., Aug. 1, 1909, on trees. No. 915 French River, Minn., Oct. 3, 1909, on rocks. No. 674 Carlton, Minn., Sept. 26, 1909, on rocks. No. 156 Gordon, Wis., Sept. 10, 1906, on cedar trees. No. 1197 Lutsen, Cook Co., Minn., Sept., 1911. 68. Radula obconica Sulliv. No. 963 Wentworth, Wis., Oct. 19, 1910, on tree in balsam swamp. No. 1137 Lutsen, Cook Co, Minn, Sept. 22, 1911. 69. Porella pinnata. No. 958 Carlton, Minn, on rocks, Sept, 11, 1910. Conklin — Preliminary Report on a Collection of Hepaticae. 1007 70. Porella platyphylla (L.) Lindb. No. 841 Knife River, Minn., Aug. 1, 1909. No. 922 Albert, Minn., Aug., 1905. No. 325 Lester Park, Duluth, Minn. No. 1023 Solon Springs, Wis., May, 1807. No. 324 Superior, Wis. No. 1196 Lutsen, Cook Cov Minn., Sept., 1911. 71. Gololejeunea Biddlecomiae (Aust.) Evans. No. 549 Copper Creek, Douglas Co., Wis. No. 384 Copper Creek, Douglas Co., Wis. No. 1055 Black River, Douglas Co., Wis., Oct. 3, 1910. Carlton, Minn., Sept. 26, 1907, rocks. 72. Lejeunea cavifolia (Ehrh.) Lindb. No. 674 Carlton, Minn., Sept. 26, 1909, rocks. No. 547 Knife River, Minn., Xug. 1, 1909, rocks. No. 1163 Lutsen, Cook Co., Minn., Sept., 1911. Radula complanata is common on rocks and humus cliffs and will sustain quite a full exposure to the sun. It grows on trees, cedar, balsam, tamarack, and birch. R. obconica has been found only on trees in dense wooded swamps at the higher altitudes. Porella platyhylla grows on rocks in shade, or mossy hanks, at the base of trees in dense woods. Porella pinnata grows only on rocks just above the high water line. Associated hepatics are, Frullania inflata and R. com¬ planata. Coloejeunea Biddlecomiae, is one of the smallest species in the District and grows on bare rocks and loose stones preferring a damp almost dark recess or cave or pile of stones deeply shaded by the overhanging bank. In these places it spread a thin film of grey green over large surfaces. The plants are al¬ most impossible to remove from the substratum. Once only was it found growing on humus ground. It was at the base of a densely wooded cliff at Copper Creek, with a trout pool and rapid at its base, that the patch of pale green showed itself, surrounded by flowering plants of Moneses grandiflora On© has only to add to the scene the murmuring of the wind through the pine tops, the splashes of brilliant sunshine and 1008 Wisconsin Academy of Sciences, Arts, and Letters. dense shadow of a summer’s day and the rippling of the brook to visualize the wood picture. There are many moments of ex¬ altation that are never forgotten by the collector, and it is the recollection of these which adds half of the pleasure of deter¬ mining the specimens themselves in later days. Lejeunea cavifolia has been collected only on the face of per¬ pendicular cliffs of sandstone at Knife Eiver on the Huronian slate at Carlton, Minn., and on the crumbling amygdeloid cliffs at Lutsen, Cook Co., Minn. It has not been found on the Cop¬ per Range, Wis. It would appear that the Copper Range has less stability of the cliff wall. At Black River and Copper Creek cleavage and fracture occur so frequently that the cliff loving species such as Frullania Asagrayana , Lejeunea cavi¬ folia , Lophozia ventricosa, L. alpestris and L. bicrenata fail to attach themselves. The other conditions of habitat such as alti¬ tudes, rock formation, dryness and moisture are similar on the two ranges. On the North Shore Range where these species occur, the rock surface shows from the weather staining and moss flora, evidence of great age. 73. Frullania Asagrayana Mont. No. 957 Carlton, Minn., Sept. 11, 1910, rocks. No. 498 Knife River, Minn., Aug. 1, 1909, rocks. No. 1142 Lutsen, Cook Co., Minn., Sept. 23, 1911, trees. 74. Frullania Bolancleri Aust. No. 1150 Lake Nebagamon, Douglas Co., Wis., Sept. 3, 1911. 75. Frullania Brittoniae Evans. Nos. 362-481 Solon Springs, Oct. 7, 1907, birch. No. 362 Gordon, Wis., Sept. 15, 1906, cedar trees. No. 1148 Lake Nebagamon, Sept. 3, 1911. 76. Frullania eboracensis Gottsche. No. 367 Gordon, Wis., Sept. 15, 1906, cedar bark. No. 506 Copper Creek, Sept. 1, 1907, poplar bark. No. 402 Albert. Minn., Aug., 1904, cedar bark. No. 355 Lester River, Oct. 7, 1906, rocks. No. 357 Nemadji River, Superior, Wis., ash trees. No. 360 Nemadji River, Superior, Wis., balsam bark. No. 1151 Lutsen, Cook, Co., Minn., Sept. 20, 1911. Conklin — Preliminary Report on a Collection of Hepaticae. 1009 77. Frullania Cnflata (Gottsche) Evans. No. 995 Carlton, Minn., rocks, Oct. 11, 1910; also Sept. 11, 1910. 78. Frullania Oakesiana Aust. No. 661 Carlton, Minn., rocks, Oct. 11, 1910. No. 1143 Lutsen, Cook Co., Minn., Sept. 23, 1911, trees. 79. Frullania Selwyniana Pears. No. 1140 Lutsen, Cook Co., Minn., Sept. 23, 1911, cedar trees. Order 5. Anthocerotaceae. 80. Anthoceros laevis L. No. 459 Black River, Douglas Co., Wis., Oct., 1906. No. 79 Billings Park, Superior, Wis. No. 1005 Black River, Douglas Co., Wis., Oct. 3, 1910. Frullania eboracensis is common throughout the range, and has the usual habitat of trees and rocks. Along the North Shore Range it is common on the cliff walls. Along the Cop¬ per Range it is found only on trees. F. Brittoniae is rare. It was collected at Solon Springs on a living hut fallen tree growing about 20 feet from the ground, and on a fallen dead birch above Indian Spring at Lake Neba- gamon, Douglas Co. Wis. ; also at Gordon, Wis. in a dense cedar swamp on living trees. Near Carlton, Minn, at Thompson on the St. Louis River an immense concrete dam has diverted the water through a canal to the lower levels. The season of 1910 was usually dry and when the place was visited in September and October practically all the water was thus diverted. For the first time perhaps the river channel was dry, and one could walk dry shod down the west gorge over burnished boulders, and collect along the water and spray lines of the river wall. It was here that F. inflata was found, covering the perpen¬ dicular wall of the shady side of the gorge with patches four and six inches across, now dry and dusty with silt. It will undoubt¬ edly disappear from the higher surfaces and become rare in a few years. Growing within a few feet, on the higher shaded rocks where collected F. inflata , F. Asagrayana ■, F. eboracensis, and F. OaJcesiana growing on rock. This is the first record ob¬ served of such habitat for F. Oakesiana. As the ledges where 1010 Wisconsin Academy of Sciences, Arts , and Letters. it grew once supported large trees, the occurrence of the species on rocks could easily come from contact. Frullania Asagrayana at Lutsen was found growing in dense mats on birches. At Carlton and Thompson it was collected on rocks in thin spreading colonies on the wall of cliffs. At Lut¬ sen F. Oakesiana grew on trees at the higher altitudes. Grow¬ ing in a cedar swamp near Lutsen was found glistening patches of the rare F. Selwyniana, which looks in the field like a minia¬ ture F. Asagrayana. F. Bolanderi very rare East of the Rocky Mts. was found growing on white ash at Lake Rehagamon, Douglas Co. Wis., Sept. 26, 1911. Anthoceros laevis L. is the only species of this genus yet found. Many sterile colonies of Anthoceros have been observed and other species doubtless occur. Superior, Wisconsin, December 31, 1911. Additions. During 1912 two additional species have been found — 81. Lophoria longiflora (Nees) Schiffn. No. 1208 In swamp near Black River, Douglas Co., Wis., Oct. 3, 1912. 82. 8 cap anici subalpina (Nees) Dumort. No. 1206 On logs head of stream, Manitou Falls. Black River, Douglas Co., Wis., Oct. 5, 1912. The following species are either rare or newly reported for Wisconsin or Minnesota. No. 1244 Scapania glaucocephala (Tayl.) Aust. on logs, Cusson, Wis., July 25, 1913. No. 1240 Cololejeunea Biddlecomiae ‘ (Aust) Evans, on cedar bark head of St. Croix Lake, Solon Springs, Wis., June 28, 1913. No. 1229 Cephalozia Macounii Aust. Lake Nebagamon, Wis., May 10, 1913. No. 1228 Cephalozia serriflora Lindb. Lake Nebagamon, Wis., May 10, 1913, and No. 1223A Briery, Pike Lake Road, Minn., St. Louis Co., July 13, 1913. No. 1239 Frullania Selwyniana Pears. Head of St. Croix Lake, Solon Springs, Wis., June 28, 1913. New to to Wisconsin No. 1238 Frullania Bolanderi Aust. Lutsen, Cook Co., Minn., Sept, 20, 1911. New to Minnesota. TRANSACTIONS , OF THE WISCONSIN ACADEMY SCIENCES, ARTS, AND LETTERS VOL. XVII, PART IT, NO. 3 MADISON, WISCONSIN A9H CONTENTS Page Species of Pholiota and Stropharia in the Region of the Great Lakes (With Plates LIX-LXYli) : -]§f . . c . . Edivard T. Harper, 101 1 Wisconsin Discomyeetes Bernard 0. Dodge, 1027 The annual half -volume of the Transactions of the Wisconsin Academy of Sciences, Arts, and Letters, is issued in six numbers, The price of this number is $1.00. Harper — Species of Pholiota and Stropharia. 1011 SPECIES OF PHOLIOTA AND STROPHARIA IN THE REGION OF THE GREAT LAKES. Edward T. Harper. Collections made on Heebish Island, Mich, in the autumn of 1911 have enabled us to add three plates to the photographs of species of Pholiota published in the Transactions of the Wis¬ consin Academy of Sciences, Arts and Letters, Vol. XVII, Part I, 470-502. We also give six plates of species of the closely related genus Stropharia found in this region with a synopsis of the genus and. the species reported from the United States. PHOLIOTA The Pholiota Togularis Croup. Pholiota blattaria Fr. Plate LIX Five plants of the Pholiota togularis group which seem to belong to this species were found growing by the side of drift- wood in sandy soil on the shore of St. Mary’s river and among chips near an old mill on Heebish Island, Mich., in October. Pileus thin, conic to broadly campanulate or subumbonate and expanded, smooth or slightly rugose, striatulate on the mar¬ gin, dark watery ferruginous, becoming paler in drying. La¬ mellae close, ventricose, rounded behind and very slightly at¬ tached to the stem, whitish, becoming rusty with spores, edge whitish and minutely denticulate. Stem equal or slightly en¬ larged below, fistulose, silky hbrillose below and white prui- 1012 Wisconsin Academy of Sciences , Arts , and Letters. nose above, pallid becoming brown toward the base. Annulus white, entire, striate with ridges on the upper surface, only slightly attached to the stem. Spokes ferruginous, elliptical 4 — 6x9 — 12**. The plants differ from Pholiota togularis in the dark ferru¬ ginous, striatulate, hygrophanous. pileus and the rounded lamellae only slightly attached to the stem. Fries’ remark that Pholiota hlattaria is “a G alera with a ring” fits our plants ex¬ actly. The plants are also very close to Pholiota rugosa Pk which is reported from Michigan by Kauffman. Dr. Peck says Pho¬ liota rugosa differs from Pholiota hlattaria in the colors, the adnexed lamellae and the larger spores. In our plants the colors seem to agree with the descriptions of Pholiota hlattaria, the gills are only slightly if at all adnexed and the spores are somewhat smaller than the measurements given for Pholiota rugosa, 6 — 7x10 — T2%** and if we may judge from Cooke’s illustration PI. 1173 about the size of the spores of Pholiota hlattaria. The striate annulus which is a striking feature of the plant and described by Peck is not mentioned in the descrip¬ tions of Pholiota hlattaria which we have seen but Pholiota togularis is said to have a striate annulus and the small variety Pholiota togularis var. filaris is so figured by Fries. Saccar- do’s Sylloge contains the remark that while very distinct Pho¬ liota hlattaria is easily confused wfith the small form of Pho¬ liota togularis. Peck suggests that Pholiota rugosa, Pholiota filaris and Pholiota togularis may all be forms of a single spe¬ cies. Pholiota hlattaria is reported from this country by Peck, Bep’t 39, p. 40, but it is not included among the Flew York species in Bull. 122. Section Squamosae. Pholiota fulvo-squamosa Pk. PI. LX Beautiful plants of the squamose type of Pholiota were col¬ lected on Keebish Island, Michigan, in October. They grew on Harper— Species of Pholiota and Stropharia. 1013 the ground in mixed woods attached to the roots of rotten stumps. Pileus convex or lenticular with the margin incurved, becom¬ ing plane, obtuse, covered with a tawny fibrous coat, tom into fibrous tufted squarrose scales, the lighter straw colored back¬ ground showing in the cracks, smoother and appressed scaly in wet weather, center darker and the fibrous coat less torn, mar¬ gin ragged but not striate. Lamellae broad, narrower toward the stem, adnate, whitish, becoming dark cinnamon, with a whitish minutely ragged edge. Stem even, solid, becoming stuffed or hollow, covered below the ring with white fibrous, tawny tipped, erect or reflexed scales, slightly floccose above the ring. Annulus membranous, broad, well defined, covered on the under side with a scaly coat like that on the pileus and stem, ragged on the edge, the upper surface striate with ridges where the veil tore from the gills. Flesh solid, white. Spores dark ferruginous brown 4 — 5x6 — 8/l The plants agree very closely with the description of Pholiota fulvo-squamosa Pk. to which species we have referred them,* We did not notice the radish odor nor the change to brown when the flesh was cut and there was only a slight collar, shown by the gills remaining attached to each other when separated from the stem, but the marked agreement in size, shape, the tawny, scaly coat covering the whole plant, including the broad under surface of the annulus, the size of the spores and the habitat leave little doubt of the identity of the plants. The type speci- ments of Pholiota fulvo-squamosa were collected about the base of oak trees at Lansing, Mich., by B. O. Longyear. The identification was confirmed by Dr. Peck. The Pholiota Marginata Group. Pholiota marginata Batsch. PI. LXI, A. The plants illustrated in Plate LXI, A. were collected on dead alders in October. The margin of the pileus when expanded was deeply and coarsely striate. Otherwise they agreed exactly with the plants referred to Pholiota marginata in the Trans. Wis. Acad. Sci. XVII Plates LIY and LY. 1014 Wisconsin Academy of Sciences, Arts , and Letters. Pholiota discolor, Pk. PI. LXI, B. The plants in Plate LXI B. grew on a poplar stump on Nee- bish Island, Mich., in October. . They showed the characteristic feature of Pholiota discolor, Pk. Pileus dark tawny brown, watery and viscid when moist becoming bright ochraceous yel¬ low when dry. In other respects the plants resembled Pholiota marginata. Peck's description of Pholiota discolor, 1ST. Y. state Mus. Bull. 122, p. 156, is as follows: ‘"Pileus thin, convex, becoming nearly plane, or slightly depressed, glabrous, viscid, hygro- phanous, cinnamon rufous and striatulate on the margin when moist, bright ochraceous yellow when dry. Lamellae narrow, close, pallid or whitish, becoming ferruginous. Stem equal, hollow, fibrillose, whitish or pallid, sometimes with a white myeeloid tomentum at the base, the annulus distinct, persistent, spores elliptic 5x7^2**. Pileus 8 — 16 lines broad, stem 1.5 — 3 inches long, about one line thick. Single or caespitose, decaying wood and prostrate trunks of trees in woods, not rare, July to October.” Peck remarks that it is separated from Pholiota autumnalis by the viscid pileus. Our plants seem scarcely more than a form of Pholiota marginata or Pholiota unicolor. STROPIIARIA The genus Stropharia is small. Less than twenty-five species have been reported from the United States. The plants of the group are characterized by purple brown spores, adnate lamellae, a well developed annulus and no volva. The genus corresponds to Pholiota in the rusty spored series, Armillaria in the series with white spores and Anellaria among the agarics "with black spores. In the purple brown series it is distinguished from Agaricus by the adnate gills and from Hypholoma by the veil remaining as a well developed ring on the stem rather than clinging in fragments to the margin of the pileus. But the dis¬ tinctions are not well marked in all the species. It is especially Harper — Species of Pholiota and Stropharia. 1015 difficult to draw the line between purple brown and rusty brown spores, and the method of tearing of the veil varies in different plants in the same species. The genus falls naturally into two groups: plants growing on the ground or on rotten wood, Mundae (clean), and plants growing on dung, Merdariae. Of the species growing on the ground some have a viscid pileus, Viscipelles, and others have the pileus dry and more or less squamose, Spintrigerae. The spe¬ cies growing on dung closely resemble forms of Panaeolus and are separated by their spore color alone. With the exception of Stropharia semiglobata the species or Stropharia are not common and have little value as food plants. Some like Stropharia aeruginosa are suspected of being poison¬ ous. As they grow on the ground and rotten logs they do little damage to other plants or to timber and hence have little economic significance. Synopsis of the Species. A. Growing on the ground, Mundae. I. With a viscid pileus, Viscipelles. The Stropharia depilata group. Pileus brown or yellow cov¬ ered with a thick glutinous pellicle and the stem usually covered with white, ffoocose, squarrose scales. Stropharia depilata (Pers.) Pis. LXII, LXIII. Related species: Stropharia hardii, Atk. The Stropharia aeruginosa group. Pileus covered with green gluten. Stem scaly or smooth. Stropharia aeruginosa ( Curt. ) PI LXIV. Related species: Stropharia albo-cyanea, Desmaz., Stropharia micro- poda, Morg. The Stropharia coronilla group. Pileus viscid but not glut¬ inous, stem smooth. Plants resembling those of the praec^x- dura group in the genus Pholiota. Stropharia coronilla, Bull. PL LXV A. Stropharia obturata, Fr. PL LXV1 ABC. Related species: Stropharia bilamellata, Pk. Stropharia mela- sperma, Bull. Stropharia drymonia, Morg. Stropharia caesifolia, Pk. 1016 Wisconsin Academy of Sciences , Arts , and Letters. The Stropharia squamosa group. Pileus viscid when moist and scaly. Stropharia squamosa, Fr. Stropharia squamosa, var auran- tiaca (Cke.) Pk. II. Pileus not viscid, dry and squamose, Spintrigerae. Stropharia caput-medusae, Fr., Stropharia schrader i, Pk., Stropharia magnivelaris, Pk., Stropharia feildeni, Berk. B. Growing on dung, Merdariae. The Stropharia merdaria group. Stropharia submerdaria, Britz. PL LXVI GUI. Stropharia stercoraria, Fr. PI. LX VII. Stropharia semiglobata, Batsch. Stropharia umbonatescens, Pk. PL LXV B. Stropharia siccipes, Karst. PL LXVI DEF. Related species: Stropharia merdaria, Fr. Stropharia siccipes Karst., Stropharia siccipes var. radicata Pk. Stropharia mammillata, Kalch. Description of the Species. A. Growing on the ground or on rotten wood. I. Pileus viscid. THE STROPHARIA HIPILATA GROUP. Stropharia depilata, (Pers.) FIs. LXII and LXIJX Plants of this species are frequent in the northern woods in autumn. We have collected them near Lake Rosseau, Ontario, and on Keebish Island, Miich'. They grow on the ground and on rotten logs and stumps. The plants are good size with the pileus very glutinous in wet weather and the stem covered with white curly doccose scales. The photographs show the average size but much larger plants occur. Pileus thick and solid, convex to plane or broadly umbonate, obtuse, smooth, even on the margin, very glutinous in wet weather, brown or yellow cinnamon, margin appendiculate with bits of the veil when young. Lamellae adnate with decurrent. lines on the stem, broad, white, becoming purple black. Flesh whitish, solid. Stem solid, becoming hollow with age, equal, squarrose below the annulus with white floccose scales, floccose Harper — Species of Pholiota and Stropharia. 1017 scaly above the annulus, whitish or yellowish. Annulus mem¬ branaceous with a ragged margin, white floccose below and striate with even ridges on the upper surface. Spores purple brown, 6 — 8x10 — 12^. Note — Stropharia hardii, Atk. in Hard’s Mushrooms, Edible and Otherwise, pp. 321-322, is based on plants similar to Stropharia depilata if we may judge from the description and photograph. The size, pale bright ochraceous pileus and transversely floccose stem suggest Stro¬ pharia depilata but the spores are only 3 — 5x5 — V and it is not said whether the pileus is viscid or dry though it appears viscid in the photograph. Stropharia aeruginosa, (Curt.) PI. LXIV. The plants photographed grew on the ground in a grassy place by a brush pile, Eeebish Island, Mich., October, 1911. They are smaller than Stropharia depilata but have a similar thick glutinous pellicle on the pileus and curly white scales on the stem. The gluten is bright green as in some species of Hygro- phorus but the plants become white or stained with red or yellow as the dry. Pileus convex to plane or umbonate, smooth or squamosa, even on the margin, covered with a thick green gluten which stains reddish or yellowish or fades to white in drying. Flesh watery white. Lamellae close, ventricose, broadly notched and linear decurrent on the stem, whitish turning to pink and dark brown mottled, Stem even or slightly enlarged and white myceloid at the base, smooth or silky above the annulus, floccose scaly below, greenish or bluish becoming white or more or less cinereous at the base. Annulus fibrous, stained with the spores, Spores dark brown with a rusty rather than a purple tinge 4— 5x8— 1 CP. Note — Stropharia alho-cyanea, Desmaz occurs in our region. It is smaller than Stropharia aeruginosa with a green viscid pileus but a white dry stem. It agrees with Stropharia aeruginosa in hahit and place of growth. The distinguishing marks are the small size and white dry stem. This is Stropharia pseudocyanea in Morgan’s Re¬ vision of North American species of Stropharia Jour. Myc. April, 1908, p. 74. Stropharia micropoda, Morg., Jour. Myc. April, 1908, p. 73, was described from plants growing subcaespitose on dead branches of oak and hickory at Preston, Ohio. The plants are about the size of Stro¬ pharia albo-cyanea and have the pileus covered with similar green 1018 Wisconsin Academy of Sciences, Arts, and Letters. gluten, the spores also are of the same size but the stem is pale yellow above, livid below and fibrillose scaly. The species appears to be very close to Stropharia aeruginosa. W. G. Stover suggests that it is a form of Flammula polychroa. The Stropiiaria Coeoxilla -Group. Stropharia coronilla, Bull. PI. LXV A. The plants illustrated grew on the ground in the grass near a garden, Madison, Wis., June, 1911. The general appearance is like that of Pholiota dura and the place of growth is similar so that the plants might easily have keen taken for that species, but there is no rusty tinge to the spores and the annulus has the ridges characteristic of Stropharia coronilla. Pileus fleshy, firm, hemispheric to convex and expanded, smooth and slightly viscid, even and white floccose on the mar¬ gin, sometimes appendiculate with pieces of the veil, whitish or yellow ochraceous, darker in the center. Lamellae broad, rounded and adnexed or very slightly notched at the stem, whitish becoming violet and purple black. Flesh firm, solid, white. Stem even or tapering slightly upward and narrowed to a point below, solid or stuffed, smooth, white or with yellow¬ ish tints. 4nntjltjs thick easily separating from the stem, sometimes adhering to the margin of the pileus, floccose below, with radiating ragged ridges on the upper surface which are at first white then stained purple from the falling spores, Spores purple brown or black 4 — Gx9 — 12/l In FT. Y\ State Mus. Bull. 122, p. 140, Dr. Peck gives a comparison between Stropharia bilamellata and Stropharia coronilla. Our plants agree with Stropharia bilamellata in the white or yellowish rather than the tawny ochraceous pileus, but in the other points of the comparison, stem pointed at the base, annulus sulcate plicate rather than with broad white gills, and smaller spores, our plants agree with Stropharia coronilla, hence we do not hesitate to refer them to the European species. The species is distributed in FT. A. F. 3511. My copy shows spores 5—6x8 — IV and the peculiar annulus. Harper— Species of Pholiota and Stropharia. 1019 Stropharia obturata, Fr, PI. LXVI ABC. I am indebted to Dr. W. S. Moffatt of Wheaton, Ills., for the photograph of this species. The plants grew on the ground among dead leaves in woods at Glen Ellyn, Ills., in September. Dr. Moffatt referred the plants with some doubt to Stropharia obturata but did not preserve the specimens. The plants agree well with the description of that species except that they are larger, often larger that the photograph and the stems do not taper downward. The spores are brown, 5x6/*. Stropharia obturata is described as follows : Pileus 1 — 2% inches broad, fleshy, quite thick, convex to plane, obtuse, nearly dry, even on the margin, becoming rimosely squamulose, light yellow. Flesh compact, white. Lamellae adnate without a tooth, whitish becoming purple brown, never rusty. Stem. 1 — 1% inches long, 3 lines and more thick, firm, stuffed, slight¬ ly attenuated downward, not scaly, white, Annulus thick, white, Spokes purple brown 4x7/* or 6x9^. We desire to include the photograph with our illustrations because it shows another form of a group of plants which need further observation. This plant, the one figured in Trans. Wis. Acad. Sciences Arts and Letters XVII Part I PI. XXV, Stro¬ pharia drymonia, Stropharia melasperma, reported from Xew York by Peck, Pholiota howeana, Pk. and several others are closely related and the differences between them not well known. Sylloge furthermore expresses doubt whether Stro¬ pharia obturata is distinct from Stropharia coronilla. Note — Stropharia melaspe'rma, Bull., reported from New York by- Peck, N. Y. State Mus. Bull. 105, p. 28, is a small plant with the pileus 1-2 inches broad and stem about 1 inch long growing in grassy places. The pileus is smooth, white or yellowish, viscid in wet weather, never rimose scaly, stem white or yellowish with a medial ring, Lamellae ventricose, rounded or emarginate. It appears to differ from Stro¬ pharia obturata in the pileus not being rimose scaly and the rounded gills. Stropharia drymonia, Morg., Jour. Myc. April, 1908, p. 73, was based on plants growing on and near rotten wood at Preston, Ohio. They were large plants with the pileus 2%-4 inches broad and the stem 3-6 inches long, pileus smooth and viscid, pale ochraceous, flesh thick and white and a smooth white stem. The gills were close, narrow, white becoming brown with small brown spores 3— 4x5— 6^. 1020 Wisconsin Academy of Sciences , Arts, and Letters. Stropharia caesifolia, Pk. Torr. Bui. 1895, p. 489, is a plant which, belongs to this group. Pileus one to two inches broad, convex, white with a brownish center. Lamellae rounded or emarginate blueish brown. Stem solid, white with a white annulus, spores 6 — 8x10 — 13 (i. The only characteristic mark of the plant was the color of the gills. The type specimens were collected by E. Bartholomew growing in sandy pastures in Kansas. The Stropharia Squamosa Group. Note — We have no photographs of Stropharia squamosa. The species seems to be a variable one. In N. Y. State Mus. Rep’t 44, p. 36, Peck remarks “Specimens (of Sropharia squamosa) collected near Salamanca agree very closely with this species, but they differ in having the pileus of a beautiful orange red color. In this respect and indeed in many other respects they agree better with the description of Stropharia thrausta, but disagree in having the pileus neithe'r hygrophanous nor glabrous. The plants are generally rather slender, though individuals occur having a stout stem and a pileus three1 or four inches broad. This is viscid and beautifully adorned with whitish superficial scales which are easily destroyed. The margin is often appendiculate. The lamellae are broad and subdistant and the stem is long, hollow, floccose squamose and annulate. The whole plant is fragile, but this may be due in a measure to the fact that it is apt to be infected by the larvae of insects. It is probably to be considered a variety of S. squamosa and is apparently equivalent to Agaricus thrautus var. aurantiacus of Cooke’s Illustrations.” Massee in Eu. Fung. FI. p. 210, gives Stropharia squamosa, Fr. with two varieties. Yar. thrausta (Ag. thraustus Kalch.) Slender, fragile, hygrophanous, not scaly. Spores 6x12 — 15//.. Var. aurantiaca, Cke. Pileus orange or brick red. II. Pileus with no viscid pellicle, dry and squamose. Note — As far as we know no plants belonging to this division have been collected in our region. Stropharia caput-medusae, Fr. is re¬ ported in Farlow’s Index. Stropharia schraderi, Pk. is described from specimens collected near Washington, D. C. Stropharia feildeni, Berk, and Stropharia magnivelaris, Pk. are from the arctic regions. B. Growing on dung. THE STROPHARIA MEKDARIA GROUP. Stropharia submerdaria, Britz. PL LXVI GHI. Stropharia merdaria, Pr. appears to have two forms a larger form with the pileus about two inches in diameter and a smaller form with the pileus half as broad. In Stevenson’s British Fungi the large form is described and the small form mentioned while the reverse is the case in Sylloge, the small form is de- Harper — Species of Pholiota and Stropharia. 1021 scribed and the large form mentioned. Stevenson gives 6x9 /* as the spores measurements and Sylloge 5x8/* noticing also the larger measurements 6 — 8x12 — 16/* of Karsten and Britzel- mayr. The latter author has described what appears to be the small form with large spores as Stropharia submerdaria. Mor¬ gan has reported this species from Preston Ohio and considers it a form of Stropharia merdaria. We have collected what appears to be the same plant growing on dung at River Forest, Ills, and Blue Mounds, Wis. The photograph is from the River Forest specimens. Dr. Moffatt has also colected the plant at Wheaton, Ills. The description of Stropharia submerdaria is given in Revis. Hymenomyc, III, p. 13. “Pileus 3 cm. broad, hemispherical, umbonate or de¬ pressed, dull yellow, Stipe 6 cm long, 4 mm thick, base either attenuated or thickened, fibrous, white, annulus scanty, Lamel¬ lae not crowded, yellowish brown, often denticulate, Spokes brown with a violaceous tint, dark violaceous in mass, acute at one or both ends, 6 — 8x12 — 14/*.” Our notes give the pileus as “cream color or yellow, lighter on the margin, deeper yellow on the umbo.” Dr. MoffatPs notes read “dark watery brown when young and moist becoming pallid tan.” The stem is minutely white floccose becoming glabrate, annulus scanty. The photographs show scarcely any remains of the annulus. The dark violaceous brown, almost vinous color of the spores is characteristic. The plants have much- in common with Psilocybe coprophila, Bull, which also grows on dung, but has no trace of an annulus, the gills are slightly arcuate and the pileus is white and downy when 'young. Stropharia stercoraria, Fr. PI. LXVIX. This, like all the other plants of the group, grows on dung or well manured ground. Pileus hemispherical becoming expanded, smooth, viscid, the viscid pellicle cracking as the pileus dries, even on the 1022 Wisconsin Academy of Sciences, Arts, and Letters. margin, whitish or various shades of cream color and yellow. Lamellae broad, adnate, sometimes with a broad shallow sinus, decurrent in lines on the stem, white becoming purple black. Stem stuffed with a pith, equal or enlarging and somewhat bulbous at the base, white or cream color, ffocculose below the annulus, viscid with the pellicle cracking as on the pileus. Annulus slight and evanescent, near the middle of the stem. Spores elliptical, dark purple, 10xT6^. This species is not so common as the folowing Stropharia semiglobata. It is distinguished by the more expanded pileus, the stuffed and more floccose stem, the larger size, larger spores and plane not clouded gills. In our observation these distinc¬ tions do not always hold good. The plants photographed have all the marks of Stropharia stercoraria except that the gills are clouded. We have found Stropharia semiglobata with spores as large as any ascribed to Stropharia stercoraria. Lloyd’s pho¬ tograph of Stropharia semiglobata in Hard’s, mushrooms fig. 260 resembles ours. We take Atkinson’s illustration, fig. 30 to be more typical Stropharia semiglobata. Stropharia semiglobata, Batsch. This is the most common species of Stropharia. It is found everywhere on dung and manured ground. Illustrations are numerous. Atkinson, Mushrooms, fig. 30 is a good photograph of the species. It resembles Stropharia umbonatescens, PL LXV A. except that the pileus is exactly hemispherical. Pileus fleshy in the center, hemispherical, not expanding, smooth, even on the margin, viscid, light yellow. Lamellae, broad adnate, whitish and becoming mottled purple brown or black. Stem equal, smooth, fistulose, ^viscid, light yellow, sometimes slightly enlarging at the base. Annulus a fibrous ring stained with spores. Spores elliptical 8- — 9x13 — IP* or larger. Harper — Species of Pholiota and Stropharia. 1023 Stropharia unbonatescens, Pk. PI. LXV B. The plants were collected on Yeebish Island, Mich., in Sep¬ tember. They agree well with Peck’s description, N. Y. State Mats. Bep’t 30 p. 41 . The plants are very close to Stro¬ pharia mammillata, Kalch, and probably belong to that species but the pileus is rather umbonate than papillate and the spores are elliptical rather than ovate or pyramidal as in the descrip¬ tion of Stropharia mamillata. Peck’s description reads : “Pileus at first conical, subacnte, then expanded and um¬ bonate, smooth, viscid, yellow, the umbo inclining to red¬ dish. Lamellae, plane, broad, at length ventrieose, blackish brown with a slight olivaceous tint. Stem equal, slender, hollow, generally a little paler than the pileus, Spores purplish brown, almost black, 10x15 — 18%^. Plant 3 — 4 inches high, pileus. G — 12 lines broad, dung in pastures, September.” Peck remarks that the plant has probably been confounded with Stropharia semiglobata and Stropharia stercoraria but that he has separated it on account of the peculiar pileus. Stropharia siccipes, Karst. PI. LXVI DEP. The plants photographed grew on cow dung in a pasture at Blue Mounds, Wis., in June. .The stems were dry and floccose and the whitish clay color of the caps was quite distinct from the yellow tints of Stropharia semiglobata. The species is described as intermediate between Stropharia stercoraria and Stropharia semiglobata, differing from the former in the shorter dry stem and the color and from the latter in the stuffed, dry, flocculose stipe as well as color. We have col¬ lected the species a number of times and also have specimens from Yew York state. Pileus slightly fleshy, from hemispherical to expanded, ob¬ tuse, naked, even, or pellucid striate on the margin, viscid, whitish clay color, yellowish when dry. Lamellae adnate or subdecurrent, clay color to fuscous. Stem stuffed, soon hollow, straight or flexuous, smooth, finely fibrillose, flocculose, sub- flocculose or pruinose above the distant, dry, incomplete an- 1024 Wisconsin Academy of Sciences, Arts, and Letters. nulus, pale, dry. Spokes ellipsoid, fuscous and pellucid 7—9x11—14/*. Note — Stropharia siccipes radiata Pk. N. Y. state Mus. Bull. 67 pp. 37 — 38 is a rooting form of Stropharia siccipes. Peck considers the roots due to the fact that the plant grew from manure buried in the earth. Prof. A. P. Morgan, Journ. Myc. April, 1908, removes Agaricus (Psilocybe) sullivantius Mont and Agaricus (Psalliota) foederatus, B. & M. to the genus Stropharia. Both species were’ described from plants collected in Ohio by Sullivant. Until something more is known of such doubtful plants it seems best to leave them in the genera in which the author placed them. Stropharia epimyces (Pk.) Atk. Plant World, June, 1907, has quite a history. It is probably the same as Pilosace algeriensis, Quel, as iden¬ tified by Lanzi, Fungi mang. e nocini. Tav. LXII f. 3. See note in Mycologia May 1913. Geneseo, Ills., Feb. 1911. Harper — Species of Pholiota and Stropharia. 1025 INDEX OF THE SPECIES. Page Pholiota blattaria . 1011 discolor . 1014 fulvo-squamosa . 1012-13 marginata . 1013 rugosa . 1012 Stropharia aeruginosa . 1017 albo-cyanca . . 1017 bilamellata . 1018 caesifolia . 1020 caput-medusae . 1020 coronilla . 1018 depilata . 1016 drymonia . 1919 epimyces . . 1024 feildeni . 1020 foederata . . 1024 hardii . . . 1017 magnivelaris . 1020 mammillata . 1023 melasperma . 1019 merdaria . 1020-21 micropoda . 1017-18 obturata . 1019 pseudo-cyanea . 1017 schraderi . 1020 semiglobata . . 1022 siccipes . 1023 var. radicata . 1024 squamosa . . 1020 var. aurantiaca . 1020 var. thrausta . 1020 stercoraria . 1021-22 submerdaria . . . 1020-21 sullivantia . 1024 umbonatescens . 1023 Plate LIX LXI B LX LXI A LXIV LXV A LXI I LXI 1 1 LXVI ABC LXYI D E F LXVI I LXVI G H I LXV B 1026 Wisconsin Academy of Sciences , Arts, and Letters. DESCRIPTION OF PLATES. Plates LIX. Pholiota blattaria, Fr. Plailts in different stages, of growth and part of a stem X4, showing the annulus. Plate LX. Pholiota fulvo-squamosa, Pk. Showing the stem, the upper and under surface of the pileus and part of a stem X4, showing the annulus. Plate LXI. A. Pholiota marginata, Batsch, showing the striate pileus, the gill surface and a young slender plant. B. Pholiota discolor, Pk., showing plants in different positions. Plate LXI I. Stropharia depilata (Pers.) A. Cluster of three young plants. B. Part of a stem X4, showing the annulus with the striate upper surface. Plate LXI 1 1. Stropharia deipilata. A. Young plant showing the method of tearing of the veil. B. Older plant with expanded pileus, showing the stem with squarrose scales below the ring and lines decurrent from the gills at the top. Plate LXIV. Stropharia aeruginosa (Curt.) Fr. A. Two plants showing the scaly stems enlarged and myceloid below, fibrous ring stained with spores, floccose scales below the ring, gills with broad sinus and decurrent lines and umbonate pileus. B. Viscid surface of a pileus. C. Gill surface and hollow stem. Plate LXV. A. Stropharia coronilla, Bull., different views of plants and part of a stem X4, showing the enlarged annulus. B. Stropharia umbonatescens, Pk., showing plants in various po¬ sitions. Plate LXVI. ABC. Stropharia obturata, Fr. Plant, upper surface of a pileus and section showing thick white flesh and stuffed stem. DEF. Stropharia siccipes, Karst., two plants and section show¬ ing the gills. GHI. Stropharia submerdaria, Britz. Showing two full grown plants and the gill surface. - Plate LXVI I. Stropharia stercoraria, Fr., A. Young plant showing the hemispherical pileus, the annulus with striate lines on the upper surface and the semibuiDous base. B. Surface of a pileus with the viscid coat cracking into areas. C. Older plant with ex¬ panded pileus showing the stem and gill surface. TRANS, WIS. ACAD. VOL,. XVII PLATE LIX HARPER — PHOLIOTA COCKAVNS. BOSroi PHOLIOTA BLATTARI A, FR. TRANS. WIS. ACAD, VOL. XVU PLATE LX HARPER— PHQLIOT A COCKAVNS BOSTON PHOLiOTA FULVA -SQUAMOSA. PK. ■HI TRANS. WIS. ACAD. VOL. XVII PLATE L.X I A. PHOLiOTA MARG1NATA. BATSCH B. PHOLIOTA DISCOLOR. PK. HARPER— PHOLIOTA COCKAYNE. BOSTON TRANS, W1S. ACAD. VOL. XVII PLATE LXl! HARPER— STROPH ARIA COCK AY N K , BOSTON STROPH ARI A DEP1LATA (PERS.) TRANS. WIS. ACAD. VOL, XVII PLATE LXIII B A STROPHARIA DEPILATA (PERS.) HARPER— STROPH ARIA COCKAYNE. BOSTON TRANS. WIS. ACAD. VOL. XVII PLATE LX IV HARPER— ST RQPH ARIA COCKAYNE. BOSTON STROPHARIA AERUGINOSA (CURT.) TRANS. W1S, ACAD. VOL. XVII PLATE LX V HARPER STROPH ARIA COCKAVNE. BOSTON STROPHAR1A UMBON ATESCENS, PK STROPHARIA CORONILLA, BULL, TRANS. WIS. ACAD. VOL. XVII PLATE LX VI A. B. C. STROPHAR1A OBTURATA FR. D. E. F. STROPH AR1 A SICCIPES. KARST G. H. L STROPH AR I A SUBMERDARIA BR ITS HARPER STROPHARI A COCKAYNE, BOSTON TRANS. WIS. ACAD* VOL. XVH PLATE LXVIl STROPHARfA STERCORARIA. FR. HARPER- STROPH ARIA COCKAYNE, BOSTON Bodge — Wisconsin Discomycetes. 1027 WISCONSIN DISCOMYCETES B. 0. Dodge. The following list is based on specimens collected in Wiscon¬ sin by the writer and others whose names are indicated in the notes accompanying the species, and the specimens are incor¬ porated in the herbarium of the University of Wisconsin. Much difficulty has been encountered owing to the unsatisfactory con¬ dition of the generic descriptions and through our lack of know¬ ledge of the species of the Discomycetes occurring in North America. Until the North American species have been more fully compared with European species, any such list must be of a tentative nature. Several local papers dealing with the Discomycetes of this country have been consulted freely in preparing this list. A number of American species have been described by Cooke and by Phillips & Plowright in various volumes of Greviliea. As early as 1876 Parlow began listing the fungi from the region about Boston. He notes some 25 species of Discomycetes in his “List of fungi found in the vicinity of Boston” (Bull. Bus¬ sey Inst, vol. 1:404-454, 1876; vol. 2: 224-252, 1878), and later under “Notes on the Cryptogamic flora of the White Mountains” (Appalachia, vol. 3:232-277, 1884), he furnishes an additional list of 12 species of this class. The “Catalogue of the Pacific coast fungi” (Harkness and Moore, 1880) con¬ tains a list of 140 species. Earle (ContriK U. S. Nat, Herb., vol. 6: 150-263, 1901) brings together all of the species of the Alabama Discomycetes noted in the “Preliminary list of Ala¬ bama fungi’ ’ of Underwood and Earle (Alabama Exp. Sta. Bull 80, 1897), those mentioned by Atkinson in “Some fungi from Alabama’'' (Bull, Cornell Univ., vol. 3: 1-50, 1897), and spe- 1028 Wisconsin Academy of Sciences, Arts, and Letters. cies collected in that state since the publication of the previous lists. About 75 species are included in Earle’s list. Morgan (Discomycetes of the Miami valley, Jour. Mycol., vol 8 : 179-192, 1902) has described several new species from that region and has given the synonymy as he understood it of the 120 species listed. Miss Bachman has discussed about 70 species of Discomycetes from the vicinity of Oxford, Ohio (Proc. State Acad. Sci., vol. 5: 19-61, 1908). The Minnesota Discomycetes have been well described by Miss Hone (Minne¬ sota Helvellineae. Minn. Bot. Stud., 3: 209-321, 1904; Pezi- zales, Phaci diales, and Tuberales of Minnesota. Minn. Bot. Stud., 4: 65-132, 1909). Her papers include about 100 spe¬ cies, several of which are illustrated. A local paper which is of great help to a student beginning the study of this group has been issued by Seaver (Iowa Discomycetes, Bull. Lab. Hat. Hist. State TTniv. Iowa., vol. 6: 41—21*9, 1910). His keys to the families, genera, and species, and also his illustrations show¬ ing the diagnostic characters of the species which he has noted are especially helpful. The “Report of the State Botanist, 1908” (H. Y. State Mus. Bui. 131) contains a list of 135 new species of Discomycetes from America that have been described by Peck. A complete monograph of the Horth American Geoglos- saceae was issued by Durand (Ann. Myc., vol. 6, 1908). Very complete bibliographies of the literature dealing with the Dis¬ comycetes of America may be found in certain of the papers cited above. The writer wishes to acknowledge his appreciation of the services rendered him by Dr. H. Rehm in determining a large number of the species. The descriptions of all the new species which have been sent to Rehm from ‘Wisconsin by the writer and others are copied here without change except where there was evidently a misunderstanding of the data furnished by the collectors. The types in all cases are in Rehm’s herbarium. The collection first men¬ tioned after the description is the one sent to hiim This Ina- terial was divided and a part was retained in the herbarium of the Hni versify of Wisconsin. I have made these specimens the basis of comparison for other collections. The species are ar¬ ranged according to the classification given in Rehm’s “Discomy- cotes.” Dodge— Wisconsin Discomycetes. 1029 DERMATEACEAE. Cenangmm furfuraceum (Roth) Be Not. Specimens with apothecia up to one centimeter broad were found on old alder limbs about January 1. The ascl were well developed but the spores were not mature. These fprms are figured by Koth, Cat. Bot. vol. II, Pi. 9, fig. 2; Sacc., Fungi Ital., pi. ISIS. Perry’s woods Algoma, 1909 (Dodge) Bresadola vid. Cenangium populneum (Pers.) Rehin. On small decayed limbs, Schmeiling’s swamp, Algoma, August 1909 (Bodge). Rarschla lignyota (Fr.) Sacc. On ash log, Krohn’s Lake, Algoma, September 1912 (Dodge). BULGARIACEAE. Orbilia clirysocoma (Bull.) Sacc. These specimens are similar to those figured by Fatouillard, Tab. An., no. 2*93. On old logs, Blahnik’s grove, Algoma, July 1907 (Dodge). Orbilia coccinella (Sommf.) Karst. Gregarious on old pieces of wood. Star lake, August 1901 (no. 46, Overton); No. 344, Edgewood, July 1903 (Rehm vid.); Awe’s woods, Algoma, August 1905 (Dodge). Rehm vid.; Blue Mounds, July 1907. Orbilia delicatula Karst. The apothecia are sessile, orange colored, one millimeter across, very much crowded. On blocks of ash, Blahnik’s grove, Algoma, August 1909 (Dodge). Rehm vid. Orbilia epipora Karst. On pore surface of Forties fomentarius, Devil’s Lake, July 1904. C'oryne uraalis (Nyl.) Sacc. On insect gall. Blue Mounds, June 1907; Superior, September 1907 (Gilbert). Bulgaria polymorpha (Oed.) Wett. A tough, black gelatinous Discomycete frequently found on oak cordwood. It is well figured by Hussey, Illust. pi. 32; FI. dan., pi. %61i. 1030 Wisconsin Academy of {Sciences, Arts, and Letters. Berkley, Out, pi. 22, fig. 7. Devil’s Lake, September 1904 (Harper) ; Blue Mounds, September 1904; Devil’s Lake, June 1905; Madison, July 1905; Madison, July 1906 (Gilbert); Algoma, May 1906 (Dodge); Blair, August 1906. Bulgaria rufa Schw. The byinenium checks like that of Vrnula Craterium in the partly dried plant. Madison, 1903; Devil’s Lake, July 1903; Burlington, July 1903 (Denniston) ; Blue Mounds, August 1903; Watertown, Aug¬ ust 1903 (Marquette); Cemetery woods, Madison, July 1904 (Bennis- ton); Devil’s Lake, September 1904; Devil’s Lake, June 1905; Devil’s Lake, July 19 05 (Harper); La Crosse, July 19 06 ( Jolivette) ; The Dells, Kilbourn, July 1907 (Harper); Algoma, June 1906 (Dodge). MOLXilSIACEA® MoIMsia cinerea ‘(Batsch.) Karst. On wet logs, May 1904; Krohn’s Lake, Algoma, August 1905 (Dodge). Mollisia cinerea (Batsch) var. obscura Rehm in MU. East Madison, September 1903 (no. 406, Harper). Rehm i rid. Mollisia cinerascens Rehm. Blue Mounds, July 1907 (Harper). Mollisia uda (Pers.) Gill. The apothecia sometimes cohere in chains and are olivaceous-gray when dry. (Dodge). Rehm vifi. Pseudopeziza Trifolii (Bernh.) Fckl. On leaves of red clover, Fairview farm, Mauston, September 1912. (Dodge). Pseudopeziza Delmii (Rabin) Fckl. On leaves of Potentiila norvegica L., Madison; La Crosse (Pammel). Pseudopeziza repanda (Fr.) Karst. On Galium trifidum L., Racine (Davis). Pseudopeziza singularia Peck. On Ranunculus Pennsylvanicus L., Vilas county (Davis). Dodge — Wisconsin Discomycetes. 1031 HELOTIACEAE Pezizella subcinerea Rehm (Ann. Myc., 2: 37, 1904; 9, 1907). Apothecia scattered broadly sessile, at first globose then ureeolate, orbicular, disk subcinereous, exciple glabrous with elongated cells at the base, context almost prosenchymatous toward the margin, yellow¬ ish, hyaline within, waxy, when dry involute, 1-2 mm. in diameter. Asci clavate, rounded at the apex, 50-55x6-7 mic., 8-spored. Spores oblong, straight or slightly curved, 1-celled, hyaline, 6-8x2 mic., dis¬ tichous. Paraphyses filiform, hyaline, septate, prominent, 3 mic. thick. Pore of ascus I-f. On decayc-d wood, Madison, 1902 (no. 325, Harper). Differing from Mollisia cinerea in the structure of the thicker apothecia. Approach¬ ing Pezizella subcarnea (Schum.) Rehm. Known only from the type locality and collected but once. Arachiiopeziza Aurelia (Pers.) Fckl. These specimens show the spores have appendages as figured by Rehm, Disc., p. 694, figs. 1-5. Currey, Linn. Trans., XXIV, PI. 51, figs. 15, 16, and Patou illard, Tab. An., fig. 285, represent these forms ex¬ cept as to the appendages of the spores. On acorn cups, Devil’s Lake, July 1903. Cliolorsplenmm aeruginascens (Nyl.) Karst. The spores of these plants are only 1 — 1.5x6 — 7 mic. and have two to four greenish granules. So far as I find this species differs from the following only in the size of the spores. In the mature spores wre find, that there is a distinct septum, the v.7all appearing in sections as a fine straight line. On oak stub, Mauston 1909 (Dodge); on dead alder limbs, Serrahn’s swamp, Algoma, September 1909 (Dodge). Cliorospleniimi aeragmosum (Oed.) De Not. Like the preceding species this blue-green fungus colors both heart and sap wood a greenish blue. The mature spores, 10-14x2.5-3.5 mic., are also septate as figured by Saccardo, Fungi Ital., PI. 1348. Boud- ier, leones Myc., pi. 4S5, shows the general appearance of the' species as we find it. Blue Mounds, July 1902 and August 1903; Crandon, August 1903 (^Neuman); Eagle Heights, July 1904; Ladysmith, August 1905; (no. 360, Neuman); Detjen’s swamp, Algoma, August 1905 (Dodge); Devil’s Lake, July 1907; Blue Mounds, August 1908; Lake Nehagaman, August 1908; Krohn’s Lake, September 1912 (Dodge). 1032 Wisconsin Academy of Sciences , Arts, and Letters. Clilorospleniiiin chlora (Schw.) Massee Probably belongs to another genus. The species is known to me on¬ ly by the specimens identified by Rehm. Blue Mounds, October 1902; Blue Mounds, September 1903 Rehm vid. Cholor o spleni um versiforme (Pers.) De Not. The color of the apothecium distinguishes this species from the two preceding. It varies considerably, being purplish-brown, rusty-yellow, very dark-olivaceous, or deep bottle-green. It is generally larger. The disk may be as much as four centimeters broad, and like the othersi it is either cup-shaped or irregularly developed, often ear-shaped, and tapers downward, forming a much wrinkled, depressed, stem-like por¬ tion 1-2 cm. long. In drying the dark lustrous olive colors are much more evident, or they may dry rusty-yellow, while the others are gen¬ erally brilliantly colored when dry. Persoon, leones et Descr., PI., fig. 7 figures the dark-olive forms. The color of the exterior of fresh speci¬ mens is wen shown by Berkeley, Out., pi. 2, fig. 6*„ but the interior is too bright green for our forms. Mature spores often show a fine clear-cut septum not mentioned in descriptions. Logs on which some specimens were found had been recently cut across and it was noticed that portions of the wood were colored blue-green. As the mycelium of this species is said by preceding authors not to possess this characteristic, careful examination was made of other logs from which specimens had been col¬ lected. In a few cases the color in the wood could be traced directly to the fruiting bodies, but in general the colored portions were rather deep seated. I have also collected fine specimens from Fort Lee, N. J., where the more decayed parts of an ash log were deeply colored yet only slight traces of the color were found in contact with the apothe- cia; still I am convinced that it was due to this species rather than to either of the others accidentally present. Homewood, August 1903; Sturgeon Bay, July 1906 (R. Allen); Blue Mounds, July 1906 (Gilbert); as Coryne viridescens Rehm, Blue Mounds, August 1908; Krohn’s lake, August 1909 (Dodge); Rehm vid., Seaver vid. Otto’s woods, Sep¬ tember 1912 (Dodge). Ciboria fuscocinerea Rehm (Ann. Myc., 7: 525, 1909). Apothecia gregarious, sessile, at first globose and closed, then cyathi- form, finally the disk more or less explanate, orbicular, with a very thin margin, sometimes umbilicate in the middle, 0.3-1 cm. in diame¬ ter, with a cylindrical stipe, glabrous without, attenuated and tawny towards the base, 0.5-0.7 mm. thick, 1-5 cm. long, context hyaline ashy, finally alutaceous-fuscous, waxy, and prosenchymatous. Ascl cylindrical, rounded and thickened at the apex, 150x10-12 mic., 8- spored. I-f. Spores oblong-clavate, obtuse at the upper apex, often Dodge — Wisconsin Discomycetes . 1033 subcurved, 1-celled with a large central oil globule, hyaline, 20-24x5-6 mic., monostichous. Paraphyses filiform, septate, hyaline, 2.5 mic. thick, apex obtuse, 3 mic. thick. On decaying wood of conifers buried in the ground. “A very beautiful discomyeete with large spores similar to Ciboria Dallasiana E. & E. (Sace. Syll. XVIII, p. 45), but different in the color of the disk and does not have spindle-shaped spores; the paraphyses are also different.” Small plants are similar in appearance to what is commonly called Geoyyxis nebulosa (Cooke) Sacc. In mature plants the apothecia are nearly plane or salver-shaped. The writer found the spores were often larger than the measurements given by Rehm. The spores of G, nebu- losa are rough (Cooke, Mycog. fig. 163), while those of Ciboria fusco- cinerea are perfectly smooth. See also under Tarzetta cinerascens Rehm. No. 1853, Rehm Ascom. Exs.„ Krohn’s Lake and Perry’s swamp, Algoma, August 1909 (Dodge.) Ciboria pachyderma Rehm. Madison (no. 419, Harper). Rehm vid. Ciboria pygmaea (Fr.) Rehm. These specimens were at one time identified as Dasyscypha pygmaea by Morgan. The figures in Linn. Trans . XXV, p. 432, pi. 55 , figs. 7—9 , IS , seem to be fairly good for these forms. Devil’s Lake, July 1903; Madison, June 1906. Ciboria renispora (Ellis) Sacc. On oak leaves, Palmyra, October 1903 (Harper) Rehm vid. Ciboria snlfurella (E. & E.) Rehm. Durand, Bull. Tor. Bot. Club, 29: 461, 1902, gives a good description of this species. The characteristic sulphur color is entirely lost in drying and the specimens generally become dark brown, almost black. This no doubt accounts for a second description of the species under the name C. tabacina Ellis & Holw. in Bull. No. 3, Minn. Nat. Hist. Surv., p. 35, 1886, where it is stated that the description of the colors, etc., was taken from the dried specimens. An examination of the type specimens shows that the species are identical. The type material distributed as no. 1880, Rehm Asc. Exs. as C. tabacina (?), were all collected on ash petioles, Perry’s swamp, Algoma, August 1909 (Dodge) Gtborfa snbrabescens (Rehm.) Ann. Myc., 7; 524, 1909. Apothecia gregarious, occasionally many closely aggregated together on the thickened bark of decaying roots, at first globose, closed, then 1034 Wisconsin Academy of Sciences, Arts, and Letters. cyathiform, thickly margined, 1-4 mm. in diameter, folded and in¬ volute when dry, tapering downward into a cylindrical subcurved stipe 1-2 cm. long, 0.5-1 mm. thick, exterior glabrous, pale rubescent, di¬ lute alutaceous when dry, whitish pruinose waxy, context prosenchy- matous. Asci cyiindrical-clavate, rounded at the apex, 60x5 mic., 8 — spored. I-f-. Spores rod-shaped to subclavate, straight, 1— celled, hya¬ line, 7— 8x1.5 mic., distichous. Paraphyses filiform, subacute, slightly protruding, hyaline, 2—2.5 mic. The specimens sent to Rehm were growing on decayed roots, Madi¬ son, 1909. Rehm, 1. c., says that this species could be classed among either the Ciborias or the Helotiums, and is near G. tenella Karst, in color, but that species has spores 3 mic. broad. Helotium cupreum Bres. differs in color, while Helotium fusco-'brunneum Pat. & Gaill. has a very short stipe. Devil’s lake, June 1906, July 1909; no. 1852, Rehm Ascom. Exs., Cemetery woods, Madison, June 1909 (Dodge).; Algoma, August 1909 (Dodge). Helotium anreum Pers. On decayed wood, Blue Mounds, June 1903, no. 335; Morgan vid. Helotium cifcrinum (Hedw.) Fr. Judging from the large number of collections in the university her¬ barium this species is the one most commonly found and most easily identified. No. 319, Madison, September 1901, Peck vid.; Superior, September 1907 (Gilbert); Burlington, August 1905 (Denniston); Al¬ goma, July 1909 (Dodge), Rehm vid.; various other collections from Blue Mounds, Devil’s Lake, Madison, Milwaukee, and Parfrey’s glen. Helotium citrimmi var. lenticulare Bull. The following specimens seem to be somewhat different from the preceding species on account of the sessile apothecia cohering in chains, or forming a compound apothecium 1—2 cm. long. Such speci¬ mens as are mentioned by Rehm, Disc., p. 490, were collected at Fort Lee, N. J. These were light yellow and formed a compound apothe¬ cium about 1.5 cm. in diameter. Madison, October 1900; Star Lake, August 1901 (Overton) ; Watertown, August 19D3 Marquette) ; Blue Mounds, September (Harper); Devil’s Lake, October 1904 (Marquette); Algoma, 1905 (Dodge); Blueberry, September 1907 (Overton). Helotium epiphyllum (Pers.) Fr. Blue Mounds, August 1903 (R. A. & A. M, Harper). Helotium foliicolum Schroet. On midrib and petiole of alder, leaves in muddy places, Perry’s swamp, Algoma, August 1909 (Dodge) ; Rehm vid. Dodge — Wisconsin Discomycetes. 1035 Helotmm fructigeimm (Bull.) Karst. On acorns, hickory nut shells, etc., Several sessile form:* have been collected at Blue Mounds, Mauston, and Algoma. Typical forms with stipes 1-3 cm. long as figured by Sowerby, Eng. Fung., pi. Ill; Bulliard, Herb. Franc., pi. 228, are perhaps more abundant. Rehm vid. Helotmm imberbe (Bull.) Fr. The apothecia are 1-3 mm. in diameter, waxy white, either nearly sessile or tapering into a stipe 1 cm. long. Figured by Bulliard, Herb. Franc., pi. 467, fig. 2. On small maple limbs under leaves, Otto’s woods, Algoma, August 1909 (Dodge); Rehm vid. Helotium limonicolor Bres. Bresadola, Fung. Trid., pi. 195, fig. 3, represents a form found on Thuja orientalist, which is undoubtedly the same as those found here on leaves of Thuja occidentalis. Blueberry, September 1907 (Over- ton); Perry’s swamp, Algoma 1909 (Dodge). Helotium scutula (Pers.) Karst. Figured by Saccardo, Fungi Ital., pi. 1339-1340 ; Patouillard, Tab., An. fig. 93. No. 118. Palmyra, October 1901, Rehm vid.; Blue Mounds,. September 1904; Casco, September 1905 (Dodge); Algoma, August 1909 (Dodge), Rehm vid. Helotium sordidatiun Karst. & Starb. The specimens dry a blackish brown. The spores are clavate, sharply pointed at one end, and not guttuiate. This collection was identified by Dr. Rehm as H. phyllophilum (Desm.) Karst., which ac¬ cording to his description (Rehm, Disc., p. 796) does not have pointed spores but the spores often do have two large oil globules. We find the size of the spores to be 17-19x4 mic. The short asci, 80 mic., dis¬ tinguish the species from H. epiphyllum (Pers.) Fr. Helotium sublenticulare (FI. dan.) Fr. On dead alder limbs, Fellow’s woods, Foscora, August 1905; Rehm vid. Sclerotinia Candolieana (Lev.) Fckl. A good figure of the species will be found in Ann. Sci. Nat. 20: 233, pi. 1, fig. 4, 1843. Among decayed leaves under Geranium maculatum, Cemetery woods, Madison, June 1909 (J. Dodge) ; Rehm vid. Sclerotinia fructigena (Pers.) Norton. Very common on old plums University of Wisconsin orchard, Madison, May 1909 (Arzberger). 1036 Wisconsin Academy of Sciences , Arts , and Letters. Sclerotinia tuberosa (Hedw.) Fckl. Milwaukee, April 1905; Madison, May 1909 (R. Allen); Cemetery woods, Madison, June ( J. Dodge) ; The Dells, Kilbourn, June 1909 (Dexter). Sclerotinia Wisconsinensis Rehm (Ann. Myc., 6: 317, 1908). Apothecia from a suborbicular sclerotium convex below in upper part plain or umbilicate, exterior black, interior white, wrinkled when dry, 3-6 mm. broad, 2.5-3 mm. thick, in clusters of 2-5, rarely solitary. At first spheroid, then disk-shaped, with a thin margin, 1.5-3 mm. broad and high, yellowish-brown, glabrous, when old tawny brown with a long stipe. Stipe cylindrical, about 0.15-0.2 mm, thick, expanding belpw the excipulum, 2-3 cm. long, glabrous, erect, curved, brownish-yellow' Apo- thecium with the stipe longitudinally wrinkled when dry, the disk var¬ iegated whitish. Asci clavate, apex rounded, 150-180x12-15 mic., 8— spored. I-f. Spores fusiform, more or less rounded at the the ends, generally with one or two large oil globules, hyaline, 20-22x7 mic., monostichous, rarely distichous. Paraphyses filiform, projecting, ob¬ tuse, septate, hyaline, 3-4 mic thick. In damp woods, Madison, March 1908 (no. 75, Arzberger). “The specimens were slightly imbedded in earth mixed with decayed plants and small dry twigs of ash. Isopyrum biternatum and Os- morrhiza longistylis grew abundantly in the neighborhood, but Arz¬ berger found no connection between these plants and the sclerotia, though this must probably be assumed to exist. &. gracilis Clements (Sacc., Syll. XVI, p. 723) is distinguished by its larger lobed sclerotia and its spores 26-32 mic. long.” Dasyscypha Agassizii (B. & C.) Sacc. Common on Abies balsamea of brush piles, Blahnik’s woods, Algoma, 1909 (no. 1854, Rehm. Asc. Exs., Dodge) ; near Duluth, May 1908 (Gil¬ bert). Dasyscypha nivea (Hedw.) Sacc. Eagle Heights, October 1904 (Denniston); near Duluth, May 1908 < Gilbert). Laclmella corticalis (Pers.) Fr. On bark at base of living poplar, Ihlenfeld’s woods, Algoma, Septem¬ ber 1909 (Dodge). Rehm vid. Lachnum ciliaris (Schrad.) Rehm. On oak leaves, Blue Mounds, July 1904; campus, Madison, June 1909 and Boudier, leones Myc., pi. 327, no. 238, give good figures. Krohn’s lake, Algoma, Amgust 1909 (no. 1856, Rehm. Asc., Dodge) ; Devil’s lake, June 1909. Plicaria foadia (Pers.) Fckl. Some forms of our plants show a purplish or even violet tinge. Fig¬ ures usually given for the American forms agree well with the large plants found in woods; cf. Boudier, leones Myc., pi. 283; Berkeley, Out., pi. 23; fig. 4‘ Specimens distributed as No. 1860, Rehm Asc. Exs., from rich black soil near Krohn’s Lake are very small and almost black. These are quite different plants, but may be the same species. Blue Mounds, August 1903; East Madison, September 1903; Burling¬ ton, September 1903 (Denniston). Morgan vid. Eagle Heights, July 1904 (Denniston); Windsor road, May 1905 (Harper); Blue Mounds, May 1905; Devil’s Lake, July 1905; Sturgeon Bay, July 1905 (R. Allen) ; (?) Blue Mounds, August 1906 (Jolivette) ; Hammersley’s drive, August 1906; Blue Mounds, June 1907; Sturgeon Bay, August 1907 (R. Allen); Awe’s woods, Foscora, August 1905 (Dodge), Plicaria bsninneo-atra (Desm.) Rehrn. This species is well represented by Boudier, leones Myc., pi. 298, no. 380. Blue Mounds, 1903. i Plicaria chrysopela (Cooke) Rehm. On flower pot in grrenhouse, Madison, January (no. 414, Harper), Rehm vid. Cooke describes the spores as 12x6 mic., Mycog., p. 156. Rehm, Disc., p. 1005, gives the measurements 15-17x8 mic. The spores of these specimens are 19-20x10 mic. Pustularia vesiculosa is often i Dodge — Wisconsin Discomycetes. 1043 found on dung in greenhouses, and this specimen may be a small, less fleshy form of that species. Plicaria coeiiinieo-maculata Rehm (Ann. Myc., 2: 351, 1904). Apothecia chiefly globose, sessile with a narrowed base, disk sub- orbicular, explanate, distinctly margined, pale, exciple glabrous, con¬ text parenchymatous, made up of subcinerous cells, 25-30 mic. broad, slightly tawny, blue-spotted, when dry wrinkled, 3 cm. in diameter. Hypothecium especially blue-stained. Asci cylindrical, rounded at the apex, 180-200x10-12 mic., 8-spored. I-f. Spores ellipsoid, rounded at each end, epispore slightly roughened, 1-celled, enclosing the large oil drops, hyaline, 15-18x9-10 mic., in one row. Paraphyses filiform, septate, 3 mic. thick, hyaline, towards the apex up to 5 mic. thick. East Madison, 1903 (Harper). “The species is to be placed near Plicaria Howsei. So far as color is concerned it is nearest Peziza lividulae Phil. (Cf. Cooke, Mycog., pi. 7 2, fig. 277), but in the latter the color almost disappears in the dried out specimens.” In general appearance this species is certainly close to P. ladia, and I am inclined to think that perhaps all the violet-stained forms may be put together as a single species. On the ground, Parfrey’s glen, August 1906; Devil’s Lake, July 1905; Blue Mounds, June 1907 (Har¬ per) ; Blue Mounds, September 1903 (Harper); Alaska, August 1905 (Dodge). Plicaria pustulata (Hedw.) Fckl. Depauperate specimen, Devil’s Lake, July 1903 (no. 346, Harper), Morgan vid. P. pustulata var. minor Rehm, Devil’s Lake, July 1903, Rehm vid. The specimens from Eagle Heights, July i904, perhaps be¬ long here. Plicaria repanda (Wahl.) Rehm. As indicated below, a number of specimens sent to Rehm were iden¬ tified as this species. The Wisconsin forms agree well, so far as habit is concerned, with the figures by Bresadola (Fungi Trid., pis. 188,189 ), P. varia (Hedw.) Fr„ and P. repanda Wahl. Madison, September 1899, October 1899, (Rehm vid.), June and October 1907; Star Lake, Sep¬ tember 1901 (Overton); Homewood, August 1903; Milwaukee, August 1904; Eagle Heights, July 1905; Devil’s Lake, May 1905, July 1907 (Harper) ; Glens, July 1907; Blue Mounds, August 1909; Ihlenfeld’s woods, August 1909 (Dodge), Rehm vid. Plicaria violacea (Pers.) Fckl. On burned ground, Krohn’s Lake, September 1912. (Dodge). 1044 Wisconsin Academy of Sciences, Arts, and Letters. Galactinia subumbrina Bond. The spores are 10—11x17-20 mic., very coarsely warted, usually with two tubercles at one end as figured by Cooke, Mycog., pi. 108, fig. 885; Boudier, leones Myc., pi. 296, no. 80. Devil’s Lake July 1903; Blue Mounds, August 1903, September 1904; Milwaukee, July 1905; Ham- mersley’s drive, August 1906; Devil’s Lake, July 1907; campus, Madison, 1907. Galactinia succosa (Berk.) Sacc. Cemetery woods, Madison, July 1905; campus, Madison, June 1909 (Overton) ; Devil’s Lake, June 1909 (Harper) ; on the banks and beds of gullies in rocky ravines, Trumble’s woods, Mauston, June 1909 (Dodge), Rehm vid.; Blue Mounds, August 1909. Pustularia Stevensoniana (Ellis) Rehm. Cf. Ascom. Lojk., p. 3. De¬ scription given in Rehm, Disc., p. 1019. This is a common form around Madison on rotten logs especially of poplar. Bresadola’s figures (Fungi Trid., pi. 190) of P. varia (Hedw.) Fr. f. terrestris, with the exception of the figure in the lower right hand corner, are excellent representations, so far as habit is concerned, of Wisconsin forms which I have included here. Maple Bluff, Madi¬ son, June 1903 (no. 343, R. A. and A. M. Harper), Rehm vid.; Nelson’s woods, August 1903; Cemetery woods, Madison, July 1905; Parfrey’s glen, September 1905; Blue Mounds, August 1903, 1904; Devil’s lake, July 1904, June 1909; Crandon, August 1905 (Neuman); Sturgeon Bay, August 1907 (R. Allen); Blueberry, September 1907; Milwaukee, October 1907; Dorward’s glen, June 1909; in lumber yards and cellars, June to August, Algoma, (Dodge), Rehm vid. Pustularia vesiculosa (Bull.) Rehm. “Covered celery fields,” Milwaukee, July 1905 (Wansok) ; Madison, June 1907, on horse dung; in pastured woods, Krohn’s Lake, Algoma, June (Dodge) ; on burned ground, Cemetery w'oods, Madison, May 1909 (J. Dodge). Boudier, leones Myc., pi. 257, no. 62, represents ex¬ actly the external appearance of this last collection. Peziza umdrina Boud. is said to grow in burned places and is quite similar in its ex¬ ternal characters to those found here on burned ground. Tarzetta cinerascens Rehm. Ann. Myc., 2: 352, 1904. Apothecia gregarious, for the most part cyathiform, stipitate, but soon with the orbicular disk explanate, finally slightly convex, acutely margined, 0.5-1. 5 cm. broad, stipe subcylindrical 1-3 mm. long, 0.5 mm. thick, excipulum glabrous, parenchymatous at the base, yellowish, context prosenchymatous toward the margin, cinereous, drying yel- Bodge — Wisconsin Bis corny cetes. 1045 lowish-cinereous, subcoriaceous. Asci cylindrical, rounded at the apex, 150-180x10-12 mic., 8-spored. I+. Spores oblong, straight or subcurved, rounded at the ends, glabrous, 1— celled, one large oil glo¬ bule, hyaline, 20 — 22x5 — 5.5 mic., monostichous. Paraphyses filiform, 1.5 mic. thick, 2.5 at the apex, hyaline. On wood, East Madison, 1903 (Harper). “Similar in form and in iodine reaction to Geopyxis perforata (Karst.) Sacc., but differs in color and in spore characters. Very near Feziza nebulosa Cooke, Mycog., pi- 7 3, fig. 281. Exs. Ellis N. A. F., no. 437. The apothecia are always cyathiform and the spores are pointed at both ends, 30-35x5-7 mic., and according to Cooke they are slightly rough.” This species differs from Ciboria fuscocinerea mainly in the length of the stipe. The two forms are certainly very close together and per¬ haps should not be distinguished from Peziza nebulosa Cooke. As the number of the collections shows, this is a common and fairly abund¬ ant form and the material is reasonably uniform. Blue Mounds, August 1903, September 1908; Madison, September 1903; Blue Mounds, July 1908 (Gilbert); Parfrey’s glen, August 1908 (Arzberger). Of idea auricula (Sohaeff.) Rehm. Sturgeon Bay, July 1905 (R. Allen); Elkhart Lake, June 1909. t Otidea cochleata (L.) Fckl. Devil’s Lake, July 1905. Otidea Harperiana Rehm (Ann. Myc., 2: 34, 1904). Apothecia sessile, at first subcyathoid, vertically split on one side from the base, sublacerate here and there on the margin, finally con¬ torted, more or less explanate, not elongated laterally, narrowed towards the base in a slightly stipe-like fashion, disk undulate, reddish brown, excipulum umber bay, rugulose, velutinous, the cortex parenchymatous, made up of yellowish tawny subglobose cells about 30 mic. broad, 4-10 cm. in diameter, 1.5-5 cm. high, tapering into a short stipe, whitish at the base, and drying subcoriaceous, fragile. Asci cylindrical, rounded at the apex, 300x12-14 mic., 8— spored. Spores oblong, ellip¬ soid rounded at each end, one-celled, not guttulate, smooth, hyaline, 15 — 17x5 — 7 mic., monostichous. Paraphyses filiform, septate, 3 mic. thick, toward the apex 4 mic., hyaline. I-f . On the ground. Blue Mounds, June 1903 (Harper) ; “Near O. umbrina (Pers.) Bres1.; in color, size, and in the I — it is plainly different. On the contrary O. Harperiana tends toward Discina , 1046 Wiscomin Academy of Sciences, Arts, and Letters. but the apothecia are for tbe most part vertically split on one side and this seems to prevent putting it in that genus.” This is according to the description very close to 0. umbrina. I have not seen material of the latter species. The spores in the speci¬ mens left at Wisconsin appear to be roughened. Bresadola’s figures (Fungi Trid. pi. 180 ) represent the Wisconsin specimens perfectly as to shape, those of Boudier (leones Myc. pi. 330 ) less correctly. Madison, September 1903; Blue Mounds, August 1903. Otidea leporina (Batsch.) Fckl. Watertown, August 1903 (Marquette), Madison, October 190-7, Devil’s Lake, July 1907; Blue Mounds, August 1909. Otidea onotica (Pers.) Fckl. Blue Mounds, July 1905; Parfrey’s glen, August 1907; Devil’s Lake, August 1907. Otidea pleurota (Phil.) Sacc. The spores are 17x8.5 mic., with one long oil globule, irregularly warted. Iodine does not color the asci blue. Cooke’s figures (Mycog. pi. 97, fig. 351) represent this form very well. The spore measure¬ ments are distinctive. Blue Mounds, July 1905. Pseudoplectania melaena (Fr.) Sacc. The apothecium is light brown, chalice-shaped, and dries jet black. The short wrinkled stipe is clothed at the base with brown, non-septate hairs. Boudier, leones Myc., pi. 343, is an excellent figure of this spe¬ cies which seems to be rare in America. On decayed limbs, Parrman’s woods, Algoma, May 1905 (Dodge). Pseudoplectania nigrella (Pers.) Fckl. Superior, 1908 (Gilbert). Lachnea amphidoxa Rehm. On wet clay soil in low places frequented by cows, Blahnik’s woods, Algoma, August 1909 (Dodge) ; Rehm via. Laclmea Woolhopeia C. & Phil. ( Lachnea coerulescens Rehm sp. nov., in lift.). The specimens differ from typical forms described by Cooke, Gre- villea, 7: 75; Mycog., pi. 113, fig. W, in being abo'ut twice as large, 2—4 mm. across, and in the character of the soft brown hairs that cover the exterior. These hairs are brown throughout their entire Dodge — Wisconsin Discomycetes. 1047 length, are much longer, 0.2— 0.4 mm., and while they broaden abruptly in the basal cells, these cells, only one or two, are much longer than broad, 12—17x40—50 mic. The color of the apothecia, character of the asci, spores and paraphyses are typical of the species. Only a small collection of plants was made, and they are listed under the above name until more evidence may be obtained of the variations found in Wisconsin plants. On mossy humus at the base of a stump of Tsuga canadensis, Krohn’s Lake, August 1909 (Dodge). Lachnea coprinaria (Cooke) Sacc. On cow dung, Schmeiling’s grove, September 1912 (Dodge). Lachnea fusicarpa (Ger.) Sacc. Specimens from Blue Mounds (no1. 402, R. A. and A. M. Harper, Aug¬ ust 18, 1903) were identified by Rehm as Lachnea semitosta B. & C, var. pubida Berk. The spores are about 42 mic. long, and some of the apothecia are l%-2 cm. in diameter. Durand, Jour. Myc ., p. 28, 1906, discusses the variations and synonymy of the species, but accepts Mac¬ ropodia semitosta (B. & C.) Sacc. as a separate species. In almost any of the specimens in the University of Wisconsin herbarium one can find spores varying from 28 mic. to 40 mic. in length, a difference which is doubtless due to the degree of ripeness of the spores. As originally described, Macropodia semitosta has somewhat larger apothe¬ cia than M. pubida, but smaller spores than that species. Gerard describes P. fusicarpa as sessile. It is possible that a distinction can be found between the sessile and the stiped forms in this group which will he of more significance than the proposed distinction on the basis of spore size. It hardly seems probable that Cooke’s figure of Gerard’s material and that from Michener could be considered as belonging to the same species. Cooke’s figure, Mycog., fig. 113, is a good repre¬ sentation of many of the Wisconsin forms. The Dells, Kilbourn, Aug¬ ust 1906; East Madison, September 1903; Blue Mounds, August 1903; Parfrey’s glen, August 1907; Devil’s Lake, July 1907; Blue Mounds, September 1904. Lachnea Dalmeniensis (Cooke) Phil. Fresh specimens have rather blunt hairs which are hyaline to yel¬ lowish and not tawny yellow nor brownish as described by Cooke., Mycog., p. 84, pi. 39, fig. 151; Rehm, p. 1052. Boudier’s illustration of Lachnea theleboloides (A. S.) Gill., leones Myc., pi. 380, is a much better figure for our species in the fresh condition. On black soil under white cedar, Blahnik’s woods, Algoma, August 1909 (Dodge), Rehm vid. 1048 Wisconsin Academy of Sciences, Arts, and Letters. Lachnea hemispherica (Wigg.) Gill. On decayed wood, Madison, summer 1902, September 1903; Vilas’ woods, July 1904 (Dean) ; Hammersley’s drive, August 1906, June 1907; East Madison, September 1903, July 1907; Burlington, July 1902 (Den- niston), Elm Grove, August 1903; Homewood, August 1903; Blue Mounds, August 1903; Eagle Heights, October 1904 (Denniston); Devil’s Lake, July 1905, July 1907; Eagle Heights, August 1906; Stur¬ geon Bay, July 1907 (Allen and Jolivette) ; Luis River, July 1897; Krohn’s Lake, Algoma, August 1909 (Dodge), Rehm vid. Lachnea intermixta (Karst.) Rehm. The specimens show considerable variation in color, young forms being either olivaceous, orange, or reddish-brown. The figures of Peziza maurila'bra Cooke, Grevillea, 6: 64; Cooke., Mycog., pi. 109, fig. 388; Boudier, leones, pi. 389, are very similar to these forms which grew abundantly on burned places. Cemetery woods, Madison, June 1909 (J. Dodge), Rehm vid.; Devil’s Lake, June 1906. Lachnea livida (Schum.) Sacc. (?). Blue Mounds, October 1902 (no. 3, Harper), Rehm vid; this specimen seems to be similar to large pale forms of L. scutellata. Vilas’ woods, October 1903 (Harper). Lachnea Lojkaeana Rehm. On wet clay soil, Blahnik’s woods, Algoma, August 1909 (Dodge). Lachnea melaloma (A. & S.) Sacc. Fresh specimens are bright orange, 2—4 mm. in diameter, with cel¬ lular outgrowths bunched together on the exterior as stated by Phil¬ lips, Disc., p. 109. Of. Patouillard, Tab. An., fig. 275; Boudier, leones Myc., pi 387, no. 252. Devil’s Lake, July 1907; on the grounds under balsam fir, Blahnik’s grove, August 1909 (Dodge), Rehm vid. Lachnea pellita (C. & Pk.) Rehm in litt. Apothecium is attached to the soil by coarse, brown, secondary my¬ celium. The edge of the cup is much split and torn. The hairs and spores are well figured by Cooke, Mycog., p7., 31, fig. 119. On the ground, Blahnik’s swamp, Algoma, August 1909- (Bodge), Rehm vid. \ Lachnea pseudogregaria Rick. East Madison, September 1903 (no. 400, Harper), Rehm vid. Bodge — Wisconsin Biscomycetes. 1049 Lachnea scutellata (L.) Gill. Port Wing, August 1897 (Cheney); Florence, 1899 (Riley); Madi¬ son, June 1903 ( no. 334, Harper), Rehm via.; Elm Grove, August 1903; Blue Mounds, September 1903, July 1907; Rock Cut, May 1905; Devil’s Lake, June 1905; Fluno’s bluff, Mauston, June 1909; Schmeil- ing’s grove, Algoma, July 1905, August 1909 (Dodge), Rehm via.; Crandon, August 1905 (Neuman). Lachnea setosa (Nees.) Phill. Blue Mounds, August 1903 (R. A. and A. M. Harper), Rehm via.; Blue Mounds, August 1906; Madison, Vilas’ woods, October 1903 (Har¬ per); Alaska, June 1905 (Dodge). Lachnea stercorea (Pers.) Gill. The characteristic stellate hairs on the apothecium are figured by Cooke, Mycog., pi. 38, fig. 147-148; Boudier, leones, pi. 384. On cow dung, Stewart’s pasture, Mauston, June 1909 (J. Dodge), Rehm via. Lachnea umbrata (Fr.) Phill. On black clay soil, Blahnik’s swamp, Algoma, August 1909 (Dodge), Rehm via. Lachnea nmbrorimi (Fr.) Gill. La Chapelle, July 1897 (Cheney); Blue Mounds, June 1903 (R. A. & A. M. Harper), Rehm via., September 1908; Devil’s Lake, July 1903 (Harper), September 1904, June 1905, June 1907 Eagle Heights, October 1904 (Denniston) ; Sturgeon Bay, August 1906 (R. Allen & Joli- vette); Trumble’s ravine, Mauston, June 1909 (Dodge), Rehm via. Sarcoscypha albovillosa Rehm ( Ann . Myc., 2: 33, 1904). Apothecia scattered, at first cyathiform, then stipitate, 0.5 cm. high, disk scarlet, 7 mm. broad, stipe cylindrical, 1-2 mm. thick, the exter¬ ior covered with white, somewhat blunt, septate, hyaline hairs, 10 mic. at the basal expansion, 300x4—7 mic. Asci cylindrical, truncate at the apex, about 300x15 mic., 8-spored. Spores ellipsoid, with one large central oil globule, epispore hexagonally reticulate, hyaline, 18 — 21x10 — 12 mic., monostichous. Paraphyses filiform, apex somewhat curved, with golden oil drops, colored blue by iodine, 3 mic., expanding to 5 mic. at the apex On \the ground, Vilas’s woods, Madison, (Harper). “Near Aleuria RUenana Fckl., Symb. Myc., p. 325, pi. 5, fig. 1; Peziza splenaens Quel., Champ. Jura, p. 388, pi. 5, fig. 4.” The Wisconsin material agrees with what Boudier, (leones Myc., pi. 315), calls Peziza rutilans and is much nearer that species than it 1050 Wiscomin Academy of Sciences, Arts, and Letters . is to Aleuria Rhenana as figured by Boudier (leones Myc. pi. 314). It is, however, a good Sarcoscypha. Blue Mounds, September 1903, August 1908; Devil’s Lake, July 1904 (no. 422, Harper), Rehm vid.; Devil’s Lake, July 1905, 1907, June 1909; Awe’s woods, Foscora, August 1905 (Dodge) ; Madison, July 1905, June 1909, Parfrey’s glen,x September 1905; Fluno’s woods, Mauston, June 1909 (J. Dodge), Rehm vid.; Algoma, September 1912 (J. Dodge). Sarcoscypfaa coccinea (Jacq.) Cooke. Common on old limbs in early spring. Madison, May 1899 (Harper) ; Devil’s Lake, July 1903; Blue Mounds, June 1904 (R. A. and A. M. Harper); Schmeiling’s woods Algoma, April 1905 (Dodge); Helen- ville, April 1908; Milwaukee, May 1908 (Sherman); Star Lake, May 1909 (J. J. Brown). Sarcoscypha floccosa (Schw. ) Cooke. On basswood, Fuller’s woods June 1903, (no. 331, Harper, Rehm, Ascom., no. 1776, Ann. Myc.r p. 485, 1908) ; Devil’s Lake, July 1903; June 1906; Lake Waubesa, July 1903 (Denniston), East Madison, June 1904 (Harper); Blue Mounds, July 1904, June 1909 (Dodge); Trumble’s woods, Mauston, June 1909 (Dodge). Sarcoscypha occidentals (Schw.) Cooke. Madison, November 1901, Fuller’s woods, June 1903 (no 332, R. A. & A. M. Harper, Rehm vid.) ; Windsor road, July 1904; campus, July 1904; Fuller’s woods, June 1908 (Lutman) ; Blue Mounds, June 1903, August 1903, Rehm vid., July 1904, July 1905; East Madison, September 1903; Milwaukee, June 1904; Devil’s Lake, July 1905; Detjen’s woods, June-September 1909 (Dodge). Sepultaria avenosa var. Dodgei Rehm in litt. Distinguished from the species by the smaller apothecia and the spindle-shaped, smaller spores with two oil globules, Boudier, leones Myc., pi. 361, no. 412, shows spores with either one or two oil globules. Partly buried in soil among grass, Blahnik’s swamp, Algoma, August 1909 (Dodge). i Dodge — Wisconsin Discomycetes. 1051 ASCOJBOILACEAE. Ascophanus carneus (Pers.) Bond. On cow dung, Stewart’s pasture, June, Mauston, 1907 (Dodge); Schmeiling’s grove, August 1909 (J. Dodge), Ascophanus glaucellus Rehm. (Disc., p. 1080, fig. 5). On cow dung in open woods, Schmeiling’s grove, Algoma, August 1909 (J. Dodge). Ascophanus lacteus Cooke & Phill. On cow dung, Krohn’s lake, and Schmeiling’s woods, Algoma, 1909 (Dodge), Rehm vid. Lasiobolus equinus (Muell.) Karst. On cow dung, Nelson’s woods, Madison, May 1903, Rehm vid. Thecothens Pelletieri (Crouan) Bond. On cow dung, under dense growth of coniferous trees, Schmeiling’s grove, Algoma, August 1909 (Dodge); Madison (Overton). Jthyparobius sexdecimsporus (Crouan.) Sacc. On dry cow dung, Schmeiling’s grove, Algoma, August 1909 (Dodge). Saccobolus Kervemi Crouan. On cow dung, Blahnik’s grove, Algoma, August 1909 (Dodge). Ascobolus immersus Pers. Easily recognized by the large spores, 35x60 mic. in many plants. On cow dung, Blahnik’s grove, Algoma, August 1909 (Dodge). Ascobolus stercorarius (Bull.) Schroet. Common on cow dung, in dense shade, under coniferous trees, Krohn’s Lake and Schmeiling’s grove, Algoma, August 1909 (Dodge) 1052 Wisconsin Academy of Sciences, Arts, and Letters. RHIZINACEAE. Fsilopez'iza nummularis Berk. (Hook., Lond. Jour., 1847, p. 235). A species closely adnate to the wood upon which it grows. Super¬ ior, September 1907 (Gilbert). Psilopeziza orbicularis (Peck). Bull. N. Y. State Mus., vol. I, no. 2, pi. 2, figs. 4-6. A species closely related to the preceding in the manner in which the apothecia are adnate to the substratum. In very large plants the margin is somewhat free and has the whitish, slimy exterior so well described by Peck. On water-soaked logs, Detjen’s swamp, Al- goma, September 1909 (Dodge). GEOGLOSSACEAE. Microglossum olivaceum (Pers.) Gill. Superior, September 1907 (Gilbert). Microglossum rufum (Schw.) Und. Durand, Ann Myc., 6. 406, 1908 makes Geoglossum luteum a synonym of M. rufum. Devil’s Lake, July 1905 (R. A. and A. M. Harper) ; Blue¬ berry, September 1907. Tenderfoot Lake, September 1905 (Dennis- ton); Parfrey’s glen, September 1905; Devil’s Lake, July 1907 (Har¬ per); Devil’s Lake, August 1906; Sturgeon Bay, August 1906, 1907 (R. Allen). Geoglossum velutipes Pk. Blue Mounds, August 1903 (no. 421, R. A. and A. M. Harper), Rehm vid.; Devil’s Lake, July 1905 (Harper); Algoma, September 1912 (Dodge). Geoglossum glabrum Pers. See Trans. Wis. Acad. Sci. 16; 1171 — 1190, 1910 (Jolivette). \ Spathularia clavata (Schaeff.) Sacc. On the ground among decayed pieces of wood, Ladysmith, August 1904 no. 210, Neuman; Carr Lake, August 1904; Brule, September 1905 (Overton); Tenderfoot Lake, September 1905 (Denniston); Sturgeon Bay, June 1906, August 1907 (R. Allen); Devine’s woods, Algoma, September 1905 (Dodge). Bodge — Wisconsin Discorruycetes. 1053 Spathularia velutipes Cooke & Farlow. On decayed wood among moss, Schmeiling’s woods, Algoma, Au¬ gust 1905 (Dodge); Muscallonge Lake, August 1904 (Harper); Stur¬ geon Bay, July 1905, August 1906 (R. Allen and H. Jolivette) ; Dells, Kilbourn, July 1906 (Harper) ; Krobn’s Lake, Algoma, August 1909 (Dodge). Leotia atrovirens Pers. ( L . chloroeephala Schw. ) The specimens all correspond very closely to descriptions and fig¬ ures as to the color of the species — dark green, drying black. Cf. Cooke, Mycog.,pZ. 102 fig. 368 ; Murrill, Mycologia, 2, pi. 17, fig. 3. Durand (Ann. Myc., 6:450) after a careful study of the species, bas¬ ing his final opinion partly on Boudier’s statement that there seemed to be a difference in the paraphyses, concluded that L. chlorocephala is not what European authors have called L. atrovirens. Warner’s grove, Algoma, August 1904 (no. 862, Dodge); Devil’s Lake, Septem¬ ber 1904 Parfrey’s glen, September 1905. Leotia lubrica (Scop.) Pers. Differs in its yellowish color from the preceding. Blue Mounds, August 1900 (Lutman), August 1903, September 1904, August 1908; Parfrey’s glen, August 1902, September 1906 (Joli¬ vette); Watertown, August 1903, (Marquette); Lone Pine Lake, Au¬ gust 1904 (No. 250, Neuman) ; Ladysmith, August 1905, (no. 366 Neu¬ man) ; Eagle Heights, August 1906; Sturgeon Bay, August 1907 (R. Allen); Blueberry, September 1907; Devil’s Lake, August 1908. Leotia stipitata (Bose.) Schroet. This form with a bright blue-green cap is accurately figured by Murrill, (Mycologia, 2, pi. 17, fig. 2.) Perry’s woods, Algoma, July — September 1909 (Dodge). Krohn’s Lake, Algoma, September 1912 (Dodge). HELVELLACEAE. Helvella atra Koenig. Tenderfoot Lake, September 1905 (Neuman) : Helvella crispa (Scop.) Fr. Good figures of these plants are given in Diet., Deutsch. Crypt., pi. 31; Barla, Champ. Prov. Nice, pi. IfS, fig. 1—5. Common, Dead Lake, September 1901; Eagle Heights, September 1903 (R. A. and A. M. Harper); Milwaukee, September 1903; Blue Mounds, September 1903; Devil’s Lake, July 1905; Baraboo, October 1907 (Mrs. English); Madi- 1054 Wisconsin Academy of Sciences f Arts, and Letters. son, October 1900, 1907; Ladysmith, August 1905; Bangor, September 1905 (Neuman); Tenderfoot Lake, September 1905; Blueberry, Septem¬ ber 1907; Alton, September 1909; Danek’s woods, Algoma, September 1904—1909 (Dodge). Helvella elastica Bull. Milwaukee, November 1903 (Thai); Lake Waubesa, July 1904; Cemetery woods, Madison, July 1904; Vilas’ woods, June 1905; cam¬ pus, July 1907; Blahnik’s woods, Algoma, September 1904 (Dodge); Devil’s Lake, June 1906, July 1907; Blue Mounds, July 1907 — 1909; Sturgeon Bay, August 1907 (R. Allen); Mile Bluff, Mauston, June 1909 (J. Dodge). Helvella Ephippimn Lev. The spores are 8 — 10x15 — 16 mic. Boudier, leones, Myc., pi. 236, no . 572, gives the spore measurements as 22 — 25x9 — 10 for Leptodia Cookeiana Boud., which he considers the same species as figured by Cooke, Mycog., pi. 43, fig. 169. Rehm, Disc., p. 1181, cites Cook’s fig¬ ure as1 excellent for H. Ephippium. Milwaukee, September 1903. Helvella fusca Gill. var. bresadolae Boud. A species with broad spores well figured by Bresadola, Fungi Trid. pi. 212. Locality and date of collection not stated. Helvella inflata Cum. Although neither Underwood, Dis. N. A. Heivellales, nor Hone, Minn. Helvellineae, mentions this species, it seems to be quite distinct from H. infula. H. inflata, commonly grows on the ground, is much larger, more bladdery or inflated. Krom, Schwamme, pi. 1 , fig. Ilf 17, gives good figures for the species. Star Lake, August 1901, August 1904, (no. 250, 292, Harper); Muscallonge Lake, August 1904 (no. 310, Har¬ per) ; Sturgeon Bay, August 1910 (R. Allen) ; Blueberry, September 1907; Superior, September 1907, (Gilbert). Helvella infula Schaeff. The margin of the pileus is attached to the stem, which is flattened and tapers downward as figured by Schaeffer, leones Fung., pi. 159, fig. 2; and by Cooke, Mycog., pi. 2, fig. 331f. On dry, exposed root of coni¬ ferous stump, Schmeiling’s swamp, Algoma, June 1905 (Dodge). Helvella lactmosa Afz. Blue Mounds, August 1903; Homewood, August 1903; Burlington, July 1903 (Denniston); Algoma, September 1904-1909 (Dodge); Eagle Heights, October 1906; Madison, July 1907 (no. 1251, E. T. Harper); Sturgeon Bay, August 1907 '(R. Allen); Milwaukee, October 1908; Dodge — Wisconsin Discomycetes. 1055 Helvetia pallescens Schaeff. These plants correspond well with the figures by Schaeffer, leones, pi. 322, and Bresadola, Fung. Trid. pi. Ilf6, in having a long, deeply sulcate stipe. On the ground among needles, Blahnik’s woods, Algoma, September 1804-1909 (Dodge). Rehm vid. Gy remit ra curtipes Fr. On the ground, Danek’s woods, May 1906. (Dodge). Gyromitra gigas (Krombh.) Cke. Barron, May 1906 (no. 1., Cheney). Verpa digitaJiformis Pers. Woods, near coal shed, Madison, May 1903; on ground in lawn, Wodsedalek’s, Algoma, May 1905 (G. Andregg). Verpa perpusilla Rehm. (Ann. My c., 7: 526, 1909). Apothc-cia gregarious, arising from a subterranean white mycelium, erect, stipitate, obtusely campanulate, apex often depressed, acute, margin not inrolled nor folded, exterior subfuscous, 0.5-1 cm. high, up to 2 cm. broad, stipe central, more or less cylindrical, 3 mm. thick, up to 5 mm. thick and sub-compressed at the base, solid, smooth, 1.5-5 cm. high, yellowish or whitish. Asci cylindrical, rounded at the apex, 200x14 mic., 8-spored. Spores ellipsoid, obtuse at both ends, one-celled, one large central oil globule, 15—20x9—10 mic., monostich- ous. Paraphyses filiform, gradually enlarging toward the apex to 8 mic., hyaline. “Verpa pusilla Quel. (Sacc., 8: 72, Cooke, Mycog., pi. 101, fig . 366 ) differs in the form of the cap, in the color of its under surface, spores without oil globules, and brown paraphyses.” Helvella elastica is often found in the same locality. Under tama¬ rack and fir, Blahnik’s woods, Algoma, August 1909 (no. 1857, Rehm Asc. Exs., Dodge). MoreheUa bispora Sorok. Probably identical with Verpa bohemica. The Madison forms show ridges of the hymenium markedly reticulated. Milwaukee, April 1905; Madison. Morcheila conica Pers. This species has frequently been called a variety of M. esculenta. The pileus is distinctly conical and brown, clearly different from the yellowish-olive, more or less rounded pileus of M. esculenta. Kromb- holz, Schwamme, pi. 16, fig. 7, 8, 10, represents the smaller forms, and 1056 Wisconsin Academy of Sciences, Arts, and Letters. fig. 12, for var. ceracea, the large forms. Under maple and pine, along edge of woods in pastures, Algoma, May-June 1905 (Dodge) ; Blue Mounds, May 1902; Windsor, Madison, May 1905. Morchella crassipes (Vent.) Pers. The long, thick, brittle stipe distinguishes the species from M. con * ica. Perry’s woods, Algoma, June 1905 (Dodge); Eagle Heights, May 1906; Blue Mounds, June 1906. Morchella esculenta (L.) Pers. In lawns and pastures and in oak woods. Cemetery woods, Madison, May 1903 (Harper); I. C. R. R., near Madison May 1906 (Denniston); Windsor road, May 1905; Rock Cut, May 1905; Minequah, May 1906; Algoma, June 1905 (Dodge). Morchella hybrida (Sow.) Pers. ( M . semilibero D. C.). Cooke, Mycog., pi. 85, fig. 321 , shows both the low and the high forms. Madison, June 1901 (R. A. Harper) ; Fuller’s woods, Madison, May 1908 (Arzberger) ; Milwaukee, May 1908 (Sherman). TRANSACTIONS OF THE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS ; ’ ' " ; > _ - - - j ' ' VOL. XVII, PART II, NO. 4 MADISON, WISCONSIN 1 9 1 4 CONTENTS Page Social Conditions in Southern Bavaria in the Thirteenth Century, as Shown in Meier Helmbrecht Martin 11. Flaertel, 1057 Development of the Vowel of the Unaccented Syllable in Italian . . Edward B. Schlatter , 1073 The annual half -volume of the Transactions of the Wisconsin Academy of Sciences, Arts, and Letters is issued in six numbers* under the editorial supervision of the Secretary. The price of this number is 25c. , I Haertel — Social Conditions in Southern Bavaria. 1057 SOCIAL CONDITIONS IN SOUTHERN BAVARIA IN THE THIRTEENTH CENTURY, AS SHOWN IN MEIER HELMBRECHT. Martin H. Haertel. “Meier Helmbrecht,” an epic poem 1934 lines in length, was written by Wernher der Gartenaere, a Bavarian, about 1250. 1 The problem which it treats, — the country boy who is dissatisfied with the humdrum life, the toil and monotony of farm work, the unostentatious clothing and simple manners of his family, and who longs for more of the brilliancy and ex¬ citement of a larger world — is strangely similar to one of our twentieth century questions. The course pursued by the thir- tenth century boy may be considered by some as being not es¬ sentially unlike the methods of the twentieth century youth; while the latter goes to the big city and endeavors to develop into a captain of industry, the former goes to the nearest court and casts in his lot with the robber knights. The conclusions of our author are the same as the teachings of our moralists: “Stay on the farm with your father and live in peace and con¬ tentment/’ A careful investigation by Heinz2 has located the scene on the Inn ; that is, on the present boundary between Bavaria and 1 W. Stower places the date at 1246 (Cf. “Das Kulturhistorische im Meier Helmbrecht von Wernher dem Gartner.” Bochum, 1891.) He argues from internal evidence, and his conclusions must be accepted with some reserve. 2 Cf. Friedrich Keinz, Helmbrecht und seine Heimat, Leipzig, 1887, pp. 6 ff. A map accompanies his demonstration. 1058 Wisconsin Academy of Sciences, Arts, and Lettres. Austria. Who the author Wernher was is not known. The only apparently definite knowledge we have of his station in life is that which he himself gives at the end of the poem, namely, that he was a Garienaere , or gardener, and even this title may have been assumed. The knowledge of classical and legendary lore that he displays in the poem suggests that he had read much of the literature of the day, — though he may have gathered this knowledge from wandering minstrels — and his bits of homely philosophy, which remind one occasionally of Poor Richard, indicate that he was a good observer of human nature and life. On account of this knowledge and philosophy it has been argued that, since he was a gardener, he must have been con¬ nected with a convent garden. Keinz1 argues that he was the “pater” gardener of the convent of Panshofen, located in the district indicated above. His arguments are not conclusive, however, and are rather strongly contradicted by the fact that in lines 780-781 the old peasant states rather doggedly that he gives the church an exact tithe, and not a penny more, and Would not take a priest into his house over night. Panzer2 tries to prove that, if the author was not a knight, he was at any rate a troubadour who wrote for the benefit of the occupants of the castles. He bases his supposition on the fact that the poet derides the peasant boy who strives beyond his station, and on the description of the tournaments and court customs of old. The complaints against present-day knighthood, and the uncomplimentary comparison of the knight of today with his fathers3 Panzer calls an “apparent artistic error,” overlooking the fact that such an error would, at the very least, cause the summary expulsion of the guilty poet from the castle. Reasoning from the character of the poem, its general ten- 1 L. c., pp. 9 ff. 2 Cf. Panzer’s edition of the poem, Halle a. S. 1906, pp. xi, xii. K. Schiffmann, expresses the same view; cf. Zeitschrift fur osterreich- ische Gymnasien, LV., 8, pp. 709 ff. 3 LI. 913-1035. (Line references to the poem are based on Panzer’s edition.) Haertel — Social Conditions in Southern Bavaria . 1059 dency, rather than from incidental references that might be accidental, it seems probable that Wernher was an intelligent old peasant living in the comfortable circumstances described in his poem, who felt it incumbent upon himself to give a bit of good advice to the young people, who were showing a tendency to drift away from the habits of their fathers ; or he might have been a minstrel, who depended for his subsistence, not on the gifts of the lords and ladies of the castle, but on the munificence of peasant audiences. Stower1 considers the question as to the identity of the author of no importance. But it would surely be of deep significance if a peasant or peasant minstrel in the thirteenth century should feel sufficiently independent to write a poem which be¬ trays a well-defined contempt of knighthood, and also indif¬ ference to the church. On one point, all critics and commentators agree — that Wern- her, whatever his station in life may have been, was thoroughly conversant with the manner of living and trend of thought of the thirteenth century, and has given to posterity a valuable account of the social conditions of his time. I. The Peasant. 1. Family. Meier, or Farmer, Helmbrecht is a wealthy old peasant, who has a family consisting of his wife2, at least one daughter3, and several sons4. He does not own his farm, but holds it in lease from a nobleman, to whom he pays his rent regularly5. The leasehold to his farm he has inherited from his father, and wishes to hand down to his son6. The father is theoretically absolute master in his house. When young Helmbrecht wishes to leave, he must get permis- 1 L. c. p. 1. 2 L. 124. 8 L. 117. 4 L. 364. 6 LI. 916 ff. 6 LI. 441, 543 ff., 914. 1060 Wisconsin Academy of Sciences, Arts, and Letters. sion from his father1. A father may also give his daughter away in marriage2. His wife addresses him as here wirt 3. In one respect, however, the women are independent; they have property of their own, and can dispose of at least the income as they wish, as is shown by the fact that the mother and sister buy a gorgeous outfit for the boy4. The source of this inde¬ pendent income is not stated, but it may be the morgengaber\ The wife is a help-meet to her lord and master; she must do such work as gather in the flax and dig turnips6, and look for the calves7. The son bears the same name as the father8 ; he is a servant of his father9, and, as stated above, subject to his authority. Concerning the position of the daughter nothing is said, ex¬ cepting that she must marry the man whom her father selects10, and has some income of her own11. A close relative is the godfather, from whom the child might even inherit certain qualities12. The servants that are men¬ tioned are called kneht (servant) and freewoman13, and may be related to the master.14 2. Pood. The staple article of food on the peasant’s table is porridge1^. Poor people make this porridge with water16. Bread is made of rye17 and oats18. Of vegetables are mentioned cabbage19 and 1 LI. 227, 424. 2 L. 280. 3 L. 731. 4 LI. 117, 123, 131 et al. 5 LI. 1327 ft. The morgengabe is a gift made by the husband to his wife the morning after the wedding. 6 L. 1361. 7 L. 1391. \ 8 L. 24. There is nothing to indicate that this is the usual custom. 9 LI. 22, 614. 10 L. 280. 11 LI. 117 ff. 12 LI. 481, 1379. 13 LI. 711, 1088. 14 L. 717. 15 LI. 454, 473 et al. 16 LI. 1240-1241. 17 L. 461. 18 L. 479. 19 L. 1604. Haertel — Social Conditions in Southern Bavaria. 1061 turnips.1 As sheep, swine and cattle were raised,2 mutton, pork and beef must have been common articles of food. A feast for an especially joyous occasion is described as follows3: First course, sauerkraut, which has been packed away with meat, both fat and lean; second course, a good mellow cheese, and a goose that has been roasted on the spit; then one fried chicken, and one boiled chicken. Besides these, there were many other dishes, the character of which is however not indi¬ cated. When the son comes home after a long absence, his father can offer him nothing better than fried or broiled chick¬ en.4 Fish is mentioned as a special luxury for the nobleman,5 likewise the Austrian clamirre® and white buns.7 Cake is mentioned only as being present on the table of the robbers at the wedding feast.8 The Bavarian peasant is temperate in drinking, according to Wernher, for, when Helmbrecht wishes to give his son a feast, he has nothing to drink but water ; but, if he had had any wine, his son would have had it set before him.9 Wernher empha¬ sizes this lack of wine, which is plentiful among the knights. After the returned son has been home for a week, he has to draw his belt up three notches because he has had no wine.10 Beer is occasionally mentioned.11 The man of the thirteenth century was a big eater12, but it was considered bad manners to loosen one’s belt at table13 or to blow the foam off the beer before drinking14. Before sitting down to a meal, a well-bred man washes his hands15. *L. 1361. 2 L. 282. 3 LI. 867 ff. 4 L. 772. 5 LI. 462, 783, 1606. 6 L. 445. The clamirre is a sandwich enclosing calves’ brain or fruit, the whole being baked in lard. 7 L. 478. 8 L. 1548. 9 LI. 891 ff. 10 L. 1118; also see 1. 793. 11 LI. 1401 et al. 12 LI. 1552 ff. 13 L. 1152. 14 L. 1166. 15 LI. 861, 784. 1062 Wisconsin Academy of Sciences , Arts, and' Letters. 3. Clothing. Of ordinary clothing for men the following articles are men¬ tioned: an undershirt1, trousers2, which are held in place by a belt3, shoes4; especially tine was a pair which young H,elm- brecht gave to the servant, because they had straps5; a coat0, a mantel7 and a cap8. When the young man dressed up for a dance, or to appear among the knights, he was gorgeously at¬ tired. As Wernher was prompted to write by a desire to dis¬ courage extravagance, his description of the suit is probably exaggerated ; still, it is fair to conclude that an undue amount of money and produce was spent on dress. The boy’s fine clothes, instead of being made of home-spun9, consist of fine linen, so closely woven that seven weavers gave up the job before it was finished10. This was ornamented with fur of lamb and goat, the whitest in the land.11 He wears at times a coat of mail with a sword12. Besides this, he has a fine jacket13, to make which his mother cut up one of her own skirts14, and also bought some blue cloth15. He owns two gar¬ ments that are provided with large pockets for his knife16. His shoes are made of Cordova leather17. Special pains are taken to describe the buttons18. Along the back, from belt to collar, is one gilded button next to the other ; a similar row of silver buttons runs down the front from chin to belt; three crystal (glass ?) buttons of medium size hold the 1 L. 710. 2 LI. 321, 710. 3 LI. 179, 1121, 1152. 4 L. 321. 5 L. 1081. 6 LI. 596, 673. 7 L. 673. 8 LI. 14 et al. 9 L. 390. 10 LI. 133 ff. 11 LI. 143 ff. 12 L. 149. 13 L. 157. 14 LI. 165 ff. 15 L. 169. 16 L. 153. 17 L. 321. 18 LI. 178 ff. Haertel — Social Conditions in Southern Bavaria. 1063 coat shut in front; his whole chest is covered with small but¬ tons, yellow, blue, green, red, black, and white. Whenever he dances, these buttons glisten so that maid and matron follow him with loving glances. Another feature that is irresistible to the ladies is a series of bells, fastened to the sleeve at the shoulder, which tinkle as he dances.1 11 But his greatest glory is the appearance of his head. His hair falls down to his shoulders in heavy curls2 ; he catches it up in a cap3, which is a masterpiece of personal ornamentation. This cap is divided by a double row of birds4 into four sections, which are filled with embroidered figures. Over his right ear is pictured a bit of ancient history5, the fall of Troy, and the flight of Aeneas ; over his left ear are scenes from the Chanson de Roland 6; in the rear, scenes from German minstrel poetry, Helche, Wittich, Dietrich of Bern ; in front are several sets of dancers7. The figures are embroidered in silk8. Wprnen’s clothing does not receive much mention. Short skirts are worn9, shirts10, mantels1 xand a jacket12. Furs are used13. Lace is more fitting for the child of a nobleman14, as also a silk scarf15. Over the head a cloth is worn16. A red ribbon should also be mentioned.17 The ordinary clothing is made of homespun18, the fine clothing of linen19. 1 L. 2 lift. 2 L. 10. * L. 14. 4 L. 35. BL. 42. •L. 61. 7 L. 95. 8 LI. 59, 96. 9 LI. 677, 1337, 1449. 10 L. 1337. 11 LI. 679, 1285. 12 L. 1449. 13 LI. 679, 1285; fox pdt, 1. 1067. 14 LI. 1077-1078. 15 L. 1075. 18 L. 1088. 17 L. 1089. 18 L. 390. 19 L. 1285. 1064 Wisconsin Academy of Sciences, Arts, and Letters . 4. House and yard. The peasant’s home is very simple. There is the principal living room, and a chamber, probably used for storage1, and located directly under the roof. A cellar is mentioned2. In the living room is a large stove3, which provides the most comfortable sleeping place when it is furnished with bolster and pillow4 ; also> . a table5 and a bench6. There is a bed7 ; linen sheets are unknown8, so a newly-washed shirt is laid on the bed9 for the benefit of the returned! prodigal. For preparing food, several utensils are used — a spit10 (judg¬ ing from this, the stove must have had an open fire-place), a pan11, a pot (for boiling the chicken mentioned above), dishes12, beakers13, spoons14. For storing valuables, the peasant has stronlg iron boxes15. Candles are known16, but it is not stated that peasants use them in the home. Around! the house and barn is a fence17 ; the gate is locked18. 5. Products. The farmer raises grain — wheat, rye, and oats, as is shown by the varieties of bread that are in use (see above). The grain is threshed by means of flails19. The crops are at times injured by strangers who ride through the fields.20. Stock is 1 Ll. 853, 837. 2 L. 1847. 3 Ll. 856, 1616. 4L. 854.v e L-. 1560. 6 L. 1617. 7 L. 1046. 8 L. 1043. 9L. 1044. 10 L. 874. 11 L. 1398. 12 L. 1554. 13 L. 1555. 14 L. 671. 15 Ll. 837, 1205. 16 L. 581. 17 L. 648. 18 Ll. 1213, 1792. 19 L. 317. 29 L. 1132 Eaertel — Social Conditions in Southern Bavaria. 1065 raised to a considerable extent— cattle1, sheep2, swine2, and goats3. Horses are raised4, but they are scarce, for the father promises to get one for his son, if he can find one for sale5, and eventually pays an enormous price for one— four good cows, two oxen, three steers, four measures of grain, sixty feet of homespun6. The author however laments the fact that the peasant was cheated in the transaction; the value of all this was ten pounds, while the animal was worth scarcely three. 6. Implements. Farmers’ implements are mentioned: flail7, plow8, which requires the service of two men, one to drive and one to hold the shares, a wagon9, a scythe10 and whetstone11, an axe12, and a hoe13. II. The Knight. 1. Degeneracy of the class into robbers. The poem shows clearly that the nobility of the thirteenth century was greatly degenerated. The old peasant complains that a knight who was the very poorest in former times would easily have been the best today14. There were large numbers of knights15, and his son would learn vicious habits if he were to associate with them16. They were poor, for at court on© finds only hunger1 and hard beds17. The knights with whom Helmbrecht came into contacts were robbers18 who were anxious 1 Ll. 395, 670. 2 Ll. 282, 1137. 3 L. 674. 4 Ll. 670, 1210. 6 LL 235 ff. 6 Ll. 390 ff. 7 L. 317. 8 LL 308, 545. 9 L. 266. 10 L. 1060. 11 L. 1057. 12 L. 1063. 13 L. 1066. 14 L. 964. 15 L. 292. 16 L. 294. 17 L. 284. 18 LL 653 ff. 1066 Wisconsin Academy of Sciences, Arts, and Letters. to have as retainers only such as could ride and fight1, and Helmbrecht candidly states, when he takes leave of the family, that he expects to gain his livelihood by violence2. While these robbers were severely punished3, their vocation was gen¬ erally recognized as a regular means of earning a living. The honest old peasant fitted his son out with a horse and other necessaries of the robber4, and it was a lady at the castle who gave Helmbrecht’s companions their fanciful names, which characterized them as expert robbers5. The knights still retained a little of their old feeling of honor, for Helmbrecht says that he would not be worthy of a lady’s love if he did not avenge a breach of good manners6. But they were far below their ancestors in morality, for the old peasant remembers how courteous and honest they were in former times7. Then they amused themselves with tourna¬ ments8; they danced9, and listened to the minstrel’s music10. iSrow they spend their time in drinking and flirting with the waitresses11. 2. Brutality. These robber knights persecuted not only their enemies, but everyone who had anything that was worth stealing, not even sparing their own relatives12. The servants of the church were not safe from their depredations13. From the peasants they stole the stock14, and took even the clothing from the women15, at times stripping their victims, of every shred oif clothing16 ; they 1 LI. 656 ff. 2 LI. 366, 3 T9. 3 LI. 1669 ff. 4 LI. 390 ff. 5 L. 1218. 6 L 1169. 7 LI. 921 ff.; 1. 966. 8 L. 927. 9 L. 940'. 10 L. ’943. 11 LI. 986 ff. 12 LI. 1196. 13 L. 1070. 14 L. 670. 15 LI. 677, 1200, 1839. 16 LI. 1201, 1869. Haertel — Social Conditions in Southern Bavaria. 1067 also tortured people1. Helmbrecht tells how he dragged peas¬ ants through the hedge by their hair2, gouged out. the eyes of some, beat others, tied some by hands and feet and threw them into ant-heaps, hung some up in the smoke, pulled the hair from their beards with tongs, scalped others, broke their bones, and hung some up in the willows by their feet3. In the cold¬ est of weather they tore every shred of clothing from men and women4 ; once Helmbrecht tied a babe up in a sack while1 it was sleeping, and, when it. cried, threw it out into the snow5 ; another time he ravished the daughter of a peasant6. The regular cry of the knight is7: “Bide, knight, ride; stab and strike ; mutilate all those who can see ; chop off that man’s foot and this man’s hands; catch a rich man, and hold him for a hundred pounds ransom.” 3. Belation of knight to peasant. Helmbrecht’s course showed that there was practically no difference between the well-dressed young peasant and the knight. There must have been some degree of social equality, for a knight acted as godfather to young Helmbrecht8. Still, there was some haughtiness in the attitude of the man who lived at court towards the peasant, for, when Helmbrecht came back home, he at first refused to permit his father to touch his horse9. III. Social Life. 1. Religion, morality, education, and superstition. The attitude towards the church was not a respectful one. The old peasant complains that no attention is paid to the ban10. One might infer that the priests were preaching a cru- 1 Li. 1243 fti 2 L. 372. 3 LI. 1243 ff. 4 L. 1198. 5 LI. 1853 ff. 6 L. 18(55. 7 LI. 1028 ff. 8 L. 488. 9 L. 766. / 30 L. 1019. 1068 Wisconsin Academy of Sciences, Arts, and Letters. sad©, but not finding willing listeners1. Old Helmbrecht him¬ self paid the church his exact tithes, and nothing more; he would not even give a priest a night’s lodging2. The robbers, as has been mentioned, did not spare the priests3. This does not mean, however, that the people were not religious. When the peasants killed young Helmbrecht, they gave him time for confession4. The poet attributes FTeidhart’s poetic skill to God5. God performs miraclesi6, and is the avenger of wrongs7. When the young man leaves home to seek his fortune as robber, he blesses the family8 ; likewise, when he leaves his companions in the castle, he commends them to the care of God9. Greets ings and leavetakings are often made the occasion for a bless- ing10. On account of the purpose of the poem, the commandment, “Honor thy father and thy mother,” is emphasized11. Father’s advice' is best of all12. The peasant takes pride in the fact that he has been honest and has done his duty13. That man is to b© honored who does his work14, and the best work is that to which one has been born15 ; young Helmbrecht need not be ashamed of his position, for the honest farmer is the rock on which the wealth of the country is based16. The honest man is respected everywhere17, and, even if he is bom of lowly parents, he is better than a dishonest man of high birth18. There must, how¬ ever, have been much immorality in the lives of the people. Farmer Helmbrecht and his wife were a respected pair. Still, 1 Li. 561 ff. 2 LI. 255,780 ff.( 3 Lr. 1070. 4L. 1902. BL. 218. 6 L. 1639. 7 L, 1650. 8 L. 641. 9 L. 695. 10 LI. 715, 1453 ff. 11 LI. 757, 1692. 12 L. 333. 13 LI. 250 ff. 14 L. 487. 15 L. 289. 16 LI. 543 ft. 17 LI. 528 ff. 18 LI. 487 ff. Haertel — Social Conditions in Southern Bavaria. 1069’ their children knew that the mother had intercourse with noble¬ men, and gloried ini the fact that the old man was probably not their father1. The gorgeous cap was made by a nun, who had fled from the (convent on account of her beauty2. This hap¬ pened frequently3. Nowhere does the poet warn the young people against immorality. Possibly this immorality was due to the system by which the fathers were permitted to arrange all marriages. Love is never mentioned, and apparently the only motive for marrying was to better one’s condition4. But the people were not en¬ tirely without finer feelings, for it was natural that young Helmbrecht should grow homesick5, and when he approached the house, his sister ran out and embraced him6. The wife honored the body of her dead husband by burning incense at his grave for a year7. The father’s heart was broken when he turned his crippled son from his door8, and the mother secretly gave him some bread9. Education was not thought of. Young Helmbrecht was proud of his ability in naming four oxen, and says that it is due to his great, cleverness10. The only schoolmasters men¬ tioned are Hellsack and Shake-the-Box, who taught him to steal11. From the minstrels the peasants had picked up a knowledge of classical history12, and other subjects treated in the songs13 14. After Helmbrecht had associated with court peo¬ ple, he was able to use phrases from Latin, Italian, and Flem- J 1 u is n . Ain uneducated person is superstitious. The old peasant was 1 Ll. 1374, 1386. 2 L. 10*9. 3L. 112^ 4 Ll. 1282 ff. BL. 690. 8 L. 719. 7 L. 1306. 8L. 1776. 8L. 1812. 10 L. 828jj, 11 L. 1190. 12 Ll. 45 et al. 13 Ll. 62, 76. 14 Ll. 722 ff. 1070 Wisconsin Academy of Sciences, Arts, and Letters. worried by bis dreams1. The bride Gotelint was troubled by forebodings of evil2. It was generally believed that, before an officer of the law, the robber was helpless3. When the peasants were about to kill Helmbrecht, one of them gave him a bit of earth in lieu of the host of the sacrament.4 2. Weddings. Marriages were arranged by the parents (see above). They were based, not on love, but on a desire for wealth and com¬ fort5. The bride’s father provided a dowry6, and the husband presented his wife with a substantial gift7. When the future husband learned that he had been accepted, he bowed in the direction of his fiancee’s home.8 A great wedding feast was prepared9 to which all strangers were welcome10. The musi¬ cians received presents from both bride and groom11. A priest was not necessary for the ceremony, which was very simple. A wise old man asked the groom three times whether he would take the woman as wife, and then asked the bride three times whether she would accept the man as husband. On receiving affirmative replies, he pronounced them man and wife. The audience, which was standing in a circle around them, burst into song. The last act of the ceremony was that the husband stepped on the wife’s foot.12 3. Criminal courts. The proceedings of the criminal court were very simple. Five court-servants captured the gang of robbers at a wedding feast13. The theory that a robber loses his strength in the 1 LI. 580ff. 2 LI. 1575ff. 3 LI. 1260ff., 1620, 1641. 4 L. 1904. 6 LI. 280, 1282. 8 L. 280. TL1. 1327ff. 8 L. 1461. 9 LI. 1463ff. 10 L. 1543. 11 L. 1610. 12 LI. 1507ff. 18 L. 1613. Haertel — Social Conditions in Southern Bavaria. 1071 presence of an officer of the law held good, for, despite the great number of people, including ten mighty fighters, there was no resistance. Some crawled into the stove1, others slipped under the bench2. But they were all captured, and were forced to carry to the court the hides of the oxen that had supplied meat for the feast.3 This booty was the property of the judge.4 This particular judge was an honest man. Unfortunately there were some who could be bribed to free the worst robber in the world5. There was no need of defence, as the guilt of the prisoners was evident6, and all ten were condemned. Nine were hanged, but one, as the tenth, belonged to the sheriff. This one was blinded, and was deprived of one hand and one foot7, not an unusual punishment8. Poor Helmbrecht, blinded and crippled, was led away by a boy9. Helmbrecht’s father would have nothing to do with him10, and all peasants hated him11. Eventually he was cap¬ tured by a band of peasants, who, after taunting him for a time, beat him cruelly, and finally hanged him12. There was no one who would cut him down and bury him at the crossroads, as a good wife would have done.13 4. Business. Money is mentioned14, but ordinarily trade was carried on by an exchange of products. The escaped nun, who made the cap, received a sow, many eggs and cheeses15 16. TTo farmer had a coat that wvas worth two eggs more than that of young Helm- *L. 1616. 2 L. 1617. 3 L. 1656. 4 L. 1668. 8 LI. 1673ff. 6 L. 1669. 7 LI. 1688ff. 8 LI. 1314ff. °L. 1708. 10 L. 1710. 11 L. 1771. 12 L. 1909. 13 LI. 1300ff. 14 LI. 355, 399, 1334, 1884. 16 LI. 117ff. 1072 'Wisconsin Academy of Sciences, Arts , and Letters. brecht1, but the mother had to sell many hens and eggs be¬ fore she could pay for the cloth.2 Rent was paid in cheese and eggs3- The following tradesmen and artisans are mentioned: tail¬ ors4, fiddlers5, weavers6, innkeepers7, smiths8, merchant9. XL. 172. 2 L. 221. 3 L. 917. 4 Lr. 142. 5 LI. 103, 1609. 6 L. 138. I 7 L. 998; female, 1. 1002. 8 L. 1065. *L. 1074. Schlatter — The Development of the Vowel. 1073 THE DEVELOPMENT OF THE VOWEL OF THE UNAC¬ CENTED INITIAL SYLLABLE IN ITALIAN BY EDWARD B. SCHLATTER The University of Wisconsin INTRODUCTION. 1. This study does not pretend to contain anything new. It rather collects and arranges facts, most of which were already known and discussed by various scholars. It is hoped that the title will not prove misleading. The term “Italian” has almost as clear a connotation as the term “French.” As an Old French dialect, by the vicissitudes of political history, became “French,” so an Old Italian dialect, by the vicissitudes of lit¬ erary — as well as political, mercantile, and artistic — history, became “Italian.” As one may study the historical develop¬ ment of French and neglect, except incidentally, the other Old French dialects, one may do the same for Italian. In the thir¬ teenth century, without ceasing to be the handmaiden of every¬ day service, the Florentine dialect took on the dignity of a lit¬ erary language and its vocabulary thereby acquired the charac¬ teristics of any other such language and comprises words of varying respectability, from the most illiterate to the most lit¬ erary, pedantic, or exotic. The term “Italian,” therefore, as used here, means the language which developed from spoken- — or Vulgar — Latin in Florence. So the expressions “Floren¬ tine” and “Italian” are used here more or less interchangeably, —Florentine having a rather more local connotation when ap¬ plied to the old language. In the thirteenth, fourteenth, and fifteenth centuries, the term “Italian” was, of course, not so ex¬ act as it is today. Because of neighboring dialects and for var- 1074 Wisconsin Academy of Sciences , Arts, and Letters. ions other reasons, there was less fixity of form in words, where¬ as now Florentine has finally expelled most of the dialectal forms from the Italian language. 2. The major part of the material collected is from Petroc- chi’s Dizionario universale della lingua italiana; some words have been gathered by the investigator personally from Italian authors and from others. Petrocchi’s abbreviations, which I have had occasion to turn into English for the sake of greater uniformity, are the following: “volg.” (“volgare”), I have un¬ derstood as “illiterate” and so translated it; “non pop.” (“non popolare”), as “literary;” “pop.” (“popolare”), as “popular,” that is, the mean between “volgare” and “non popolare” or “letterario” (for example, such a word as is used generally by all, even by a very highly educated Italian and a careful speaker in his unguarded moments) ; “L. M.” (“lingua morta”), as “obsolete;” “cont.” (“del eontado”), as “peasant;” “mont.” (“delle montagne”), as “of the mountains,” meaning the hills more or less close to Florence. Abbreviations of my own will, I hope, be intelligible to the reader. Other abbreviations are of a standard kind: Ronr^Romania, ZRPh— Zeitschrift fur romanische Philologie, ALL=Archiv fiir lateinische Lexiko- graphie, AG=Archivio Glottologico, M.-L=Meyer-Lubke, etc. The references to Meyer-Liibke’s Grammaire des Langues Romanes are, of course, as the title indicates, to the French translation, Paris, 1890-1906. In the notes, figures above the line refer to editions. 3. A very large number of words were, of course, discarded for various reasons. It was impossible, as well as unnecessary, to include all the derivatives of words discussed; when it is stated, for example, that fedele owes its irregular E in the ini¬ tial syllable to the influence of the accented E in fede, the same explanation hold true, of course, without mention for fedelta, fedelissimo, fedelmente, fedelone, and the like. Miany words had to be put aside, because of the uncertainty of their deriva¬ tion or of its exact form. In some of these cases, I found de¬ rivations which did not appeal to me, in others I did not find the derivation suggested anywhere. Doubtless the majority Schlatter — The Development of the Vowel . 1075 of these cases would have added little or nothing in the way of data.1 Other words were omitted through uncertainty of provenance. Petrocchi’s abbreviations are occasionally insol¬ uble or ambiguous, owing to the fact that his table of abbrevi¬ ations is not complete and to the fact that he does not always persist in the use of a single abbreviation to denote the same thing. 4. The results of the investigation seem to show that, if the Florentine language had developed without let or hindrance, it would to-day present only four vowels in the initial unaccented syllable: I from Classic Latin I, Y, E, AE, OE ; A from Classic Latin A, or from AIJ when the following syllable contained ac¬ cented U; O from O, tJ, except when the following syllable contained I, a palatalized consonant, or voiced S ; and U from IT, ATT (except in the case mentioned above), and from O and IJ when the following syllable contained I, a palatalized con¬ sonant, or voiced S. The reasons, in order of importance, per¬ verting this development may be divided into four classes: 1, the influence of allied forms, accented on the vowel involved;1 2, the immense influence exerted by Latin;2 3, dialect intru¬ sion ;3 and 4, the other usual perverting phenomena of language, of which the most common for Italian is perhaps apheresi3. The influence of Latin and dialect has finally become almost nil and the language has now rid itself — except in the case of learned words — of a very large majority of such forms. 5. As to dialects, the Tuscan only are touched upon and they, only incidentally. Sections 37, 75, and 84 are added merely for comparative purposes. A complete treatment, or even a §3. Note 1. Examples of such words are: baeria, belletta, berlin- gaccio, bieco, diaci, fazzoletto, frollo, frugare, boffi, caendo, rigno, scilinguagnolo, a vanvera, etc. It is to be remembered that such words as frollo, boffi, etc., cannot be discarded offhand because they are accented on the first syllable; many such words originally did have an unaccented initial syllable, -cf. pdcchia, from apecchia, dritto, from diritto, et sim. §4. Note 1. This influence, which involved such an immense num¬ ber of words is at once plain from such forms as suonare, chiedeva, etc., which still persist. 2. For the old language, too much stress can scarcely be laid on this cause. No other language ever had Latin so constantly with it. Cf. 520, note 11. 3. See §§ 37, 75. and 84. 1076 Wisconsin Academy of Sciences, Arts , and Letters. satisfactory summary, was impossible for two or three reasons, — these dialects do not pertain directly to the subject and the ma¬ terial is too uncertain. What material is one to select to be sure that it is trustworthy ? Even if we can feel reasonably certain of having a text as the writer originally wrote it, all the old poets have many literary or dialectal forms, — Rustico di Filippo has such words as merze, auciso, sengnore, caunosciuto, etc.* — and, as for the prose-writers, the most unlearned, as soon as he took a pen in his hand, seemed to feel within him the spirit of the Roman of old and Latinized his words, if he was not already confused by dialectal forms. What little material of my own I have used for examining the dialects has been largely gath¬ ered, on the basis of reliability, from Monaci’s Crestomazia and from editions of documents in the various journals, — -the Archivio Glottologico, the Propugnatore, the Archivio Storico, the Zeitschrift fur romanische Philologie, and so on. Many of the documents which were examined are not mentioned in the following pages, because they added nothing new or ap¬ peared of dubious reliability. So the treatment of the dialects, such as it is, is most discouraging and probably there will never be an entirely satisfactory treatment. However, whatever may be the objections in detail to the conclusions as to the dialects and also as to the development in Italian, there seems to be no sufficient cause to doubt the general laws of develop¬ ment. 6. The objection may be made that chronology has not been strictly followed. My excuse, insufficient as it may seem to some, was the fear of further complicating an intricate sub¬ ject by robbing it of the advantage of an occasional alphabetic arrangement. It is the writer’s impression — an impression not capable of indubitable demonstration — that the early docu¬ ments represent the Florentine dialect in the actual process of certain phonetic changes, which only later completed their de¬ velopment, — this appears to be the case in certain instances of vacillation between E and I.1 In general, however, the state §6. Note 1. Parodi seems to hold the same view. In a discussion of the language of the Frammenti di un lihro di hanchieri fiorentini Schlatter- — The Development of the Vowel. 1077 of the initial unaccented vowel does not seem to have materially changed, phonetically, in Florence, since the beginning of lit¬ erary times, — except, of course, the driving out of most of the Latin and dialectal forms, save in literary or foreign words. FTo living language probably changed less, phonetically, than-5 Italian during the past six or seven centuries. 7. Perhaps it may be objected that I have not taken into ac¬ count the difference between a completely unaccented vowel and that which is under the secondary stress. I had thought of the distinction, but the vowels under these two different conditions seemed to develop in the same way, with only a few possible exceptions. The distinction in development be¬ tween the two forms Florenti9e> Fiorenze> Firenze and florentinu — ■> fiorentine is very clearly caused by the second¬ ary accent. It is not so clear in the double forms (in the old language), desiderare and disiderare. One might assume theoretically that the forms in I are due to forms accented on the second syllable' — disidero, disiderano, etc. — and that the- forms in E are due to forms in which the first syllable had a< secondary accent — desiderare, desiderio, etc. Yet this theory is quite impossible of proof and one may just as well sustain* that the forms in E are all due to a process of dissimilation.. And what is to be said of such forms as del, nel, etc., beside il ? And of mi, beside me ne etc. ? The vowel in all was orig¬ inally accented: del u, the development is evidently not uniform, although the majority of examples show u. One might cite P. Haberl, in ZPPh XXXIV 147, but I don’t think he is right.” Pa- rodi, also, in Giorn. Stor. X 182-3, says : “Si noti che il fioren- tino dice uliva, ufficio, non oliva, officio, e oosi mulino, fru- mento, ed ora anche ugni eosa, urecchio, pumpiere, scudella, ecc.” The material is certainly very contradictory and per¬ haps my zeal to obtain as formal rules of development as pos¬ sible carried me further than was wise. I Y (long) 1. Classic Latin I Y (long) > Vulgar Latin I > Italian I.1 §7. Note 1. See §20, note 6. Parodi, 1. c., pp. 187-8, says: “Xo os- servero che e importante il veder gih qui stabiliti il ed i; che nel fiorentino questa e regolare, nonostante cio che dice il D’Ovidio (AG IX, 100), pe'rche igli potrebb’esser bene in esso la forma originaria; che el inoltre, contro cio che cornu nemente si crede, e frequentissimo nei testi fiore'ntini del secolo XIV e XV, dimodoche senza dubbio questa forma, che e quella che normalmente si attenderebbe da “ille,” fu anche nei secoli anteriori ben viva. Tuttavia che i sia rifatto su il, ch’e poi un prodotto della tendenza italiana ad i atono, secondo la teoria del Diez, perfezionata dal Caix e dal D’Ovidio, vien confer- mato dal prevalere d’il, i (e di in-, anziche en-) anche nel piu antico senese.” §1. Note 1. It was thought best not to group together the develop¬ ment of i and i. As a matter of fact, although the results in Flor¬ ence are regularly the same, the principal difference lies in the ex¬ ceptions; the double forms from I are rare, whereas from i they are very numerous, — see under §§3, seq. Schlatter — The Development of the Vowel. 1079 —There are very few cases of clearly popular words, uninflu¬ enced by allied forms wherein the accent is on the I and which would, therefore, tend to preserve the I, anyway. Further¬ more, it is not possible, in many cases, to distinguish between popular and literary words, since in the latter the result was the same. In the following two groups of examples, both con¬ tain popular and literary words, hut the second has only words under the influence of allied forms, accented on the I, or of analogous words, — these are suggested in the parentheses. Ex¬ amples: — first group , citta, civile, crivello, diverse, dividere, divino, ghirlanda (and illiterate grillanda), Italia, livello, mili- tare, m'iracolo, principio, rivale, sipario, sirena, stipendio, vi- cino; second group, chinare (chino, etc.), cimiere (cima), dire, etc. (dice, etc.), divertire (di — in composition, — see §§11 and 12), fiducia (fido), figliuolo (figlio), finire (fine), fissare (fisso, ’etc.), girare (giro, etc.),' gridare (grido, etc.), invemo (in — in composition, — see §19), liberta (lihero), limare (lima), livore (livido), mirare (miro, etc.), ridicolo (ridere), stridore (stridere), tirare (tiro, etc.), trillare (trillo, etc.), vihrare (vibro, etc.), vilta (vile), visitare (visito, etc.), vi¬ vace (vivere, etc.). 2. Exceptions. (a) Influence of E. — The development to E, instead to I, in the following exceptions seems due, at least in part, to the following It1: gerfalco (obsolete for girfalco), from gyr(are) -falco (common Eomance: cf. the French gerfaut) ; cerusico2; meraviglia, a common Eomance development from *mirabilia, for Classic mi-; serena, for sirena, from sirena, from cruprjv , but here confusion with sereno and a tendency to vowel har¬ mony would also be of influence; bergantino, for brigantino, from a base hriga; gherbello (usually crivello),3 from cribellu-; §2. Note 1. Cf. §§21, 22, 49. 2. According to Petrocchi, circusico still lives in the Montagna pistoiese. 3. Evidently distorted by some analogy. See Caix, Studi, No. 10(i. Crivello is perhaps semi-liter ary; the popular word is vaglio. Thert is also the form garbello. 1080 Wisconsin Academy of Sciences, Arts, and Letters. ternita, a peasant word for trinita (confused with etemita or with terno)4. (b) Influence of Labials. — To preceding or following la¬ bial consonants are attributable the cases which follow: dovi- zia, dovidere (now obsolete), scioverno, a noun from sciover- nare, from *(e)xhibernare ; rubaldo, probably through a form robaldo, with contamination of rubare5; funire, an Aretine form for finire6; Classic Latin pipilare, a verb expressing the peeping of chickens, apparently developed > pibilare> pivi- lare> pivolare> povolare> puvolare> piiolare> pugolare, — the forms pigolare, pugolare, p'iulare (Lucchese), piuli (a peas¬ ant word), piolare (Pistoiese), piolio (peasant word), are found.7 (cl Double Fobms. — There are some exceptions to the rule, which are perhaps to be explained by the assumption that 1 was confused with 1 and developed under the same conditions (see §20 seq.) ; additional influences have had a bearing in some cases. Examples: premizia (Matt. Villani), for prim- izia ; cesoie, for cisoie ; cesello, for cisello8 ; letigio, leticare, letigare, etc., and litigare, etc. ; legnaggio and lignaggio9. Two other exceptions have no I-forms; se, from si, and vendemmia. In the last case the analogy of vendere and a tendency to vowel- assimilation might have had influence. Pestellino (illiterate), for pistillino, English pistil — unless it is a Vulgar Latin form 4. In the last three cases, there was probably no stage *birgan- tino, *ghirbello, *tirnitil, the passage being direct from brigantino to bergantino and similarly in gherbe’llo and ternita. 5. This is M. -L.’s suggestion, although he assumes a different etymology, see M. -L., Ital. Gram., §128. For the etymon, see Zac- caria, pp. 397-8. 6. Through a form fenire, -cf. Old French fenir. See Grandgent, Introd. to Y. L., §229 (4). Pieri, AG XII 114, mentions for Lucca fonire (and fenire; funire at Pisa), promaio, and ciovile. 7. For -il- to -ol-, cf. the development of sufolare, §2 (e). 8. Cisoie is the commoner form today and the dictionary of Tomm. e Bell, states that it is also a peasant form as well as cisello. M. -L. considers cesello vowel-assimilation (Ital. Gram., §135), but Grober (ALL I 546) demands a form in I for cisoie and a form in E (from AE) for cesoie. It is possible that both forms are from CAE-, whence cisoie for Florence, and cesoie, dialectic (see §37), although French ciseaux points to i. 9. M.-L. (Ital. Gram., §123) says that legnaggio is not Tuscan; an analogy of legno seems possible. Pucci uses linaggio in his Centi- loquio. For se, cf. Grandgent, Introd. to V. L., §229 (4). Schlatter — The Development of the Vowel . 1081 in pi — is perhaps merely a popular etymology from pestare, — that is, pestellino (“pestle”), so pestellino, because of its shape, for pistil. (d) Apheresis. — The following are aphetic forms: vaccio, from vivaciu-10; verno, yernare, vernino, etc., from hibernu-, etc.* 11; ritto, rizzare, from directu-, etc.; Sidero (13th and 14th centuries), for Isidoro12. (e) Other Cases. — Epenthesis occur in filinguello, filun- guello (flinguello and fringuello are also found), from frin- gillu-, with change of suffix; and syncope in dritto, drizzare (from directu-, etc.), and gridare (from *quirltare). The ex¬ tra syllable of avaccio, for vaccio, was apparently caused by a lingering memory of the original lost syllable (see §2 (d)) and a was chosen to replace it, either through analogy of words be¬ ginning av- or through analogy of adverbial expressions made with the preposition a13. Vlrone, for airone, aghirone, ghir- one (from OH Germ, heigir) seems to be a plain derivative of virare14, =girare. Many converging forces are found in the development of sibilare, sibillare, sufilare, sufolare, zufulare, zufolare, ciufolare, subillare, sobbillare, etc., — analogy of suf- flare, confusion with the prefix sub-, even without analogy to sufilare, the tendency of a vowel, especially I, to become O be¬ fore L (cf. nobole, angiolo, scandolo, etc.15), whence, by as¬ similation, partial or complete, 0 or XT in the initial syllable10. Viburnu- gives viburno (learned), riburno17, and vavorna18. The common obsolete (?) use of fornire for finire is merely a 10. This apheresis is purely arbitrary, like Maso, for Tommaso, et sim. 11. The process was: lo iverno> lo’verno, cf. OI> O, § 85. 12. Igoggi, mod. peasant word, is apparently from hic-hodie; if so, goggi (Montalese') is an aphetic form of the same, — see Salvioni, ZRPh XXII 472. 13. In this latter case, however, one would expect avvaccio, with two v’s. 14. Cf. English veer. 15. See M.-L., Ital. Gram., §119. 16. For these words see Ascoli, Miscellanea Caix-Canello 427 (pre¬ viously printed in AG X 1-17), Biicheler. Rhein. Mus. XLII 584 Canello, AG III 382, Flechia, AG III 154. 17. From vivurno, by dissimilation of v-v and confusion with the Italian prefix ri-. 18. Explanation? Cf. French viorne. See Grober, ALL. VI 142. 1082 Wisconsin Academy of Sciences , Arts , and Letters. confusion of the meanings and forms of the two words. The following forms are dialectic: melitare (Livorno and Pistoia; for militare: mecello (Arezzo, “capezzolo della mammella”), according to Caix19, from a form *miccello, “quasi piccola miccia o lucignolo”, from myxa, y,v£a; chinche (and chin- chesia, “chiunque,” in Guittone, et al., and living in Aretine), where the unaccented I became accented by the contraction.20 E £ 1 AE OE Y (short) 3. Classic Latin E E 1 AE OEi Y (short) > Vulgar Latin E (closed or closing) > Italian I, Except Before R, in which Case the Development was to E. — This was the result in Florence1, and although the I-development is difficult to prove in all cases, because of the insufficiency of uncontaminated doc¬ uments, yet practically all the exceptions which show E are at¬ tributable in the modern language to learned influence and in the old language to the influence of Latin or of dialects, of which some very close to Florence gave E or I and others regu¬ larly E (see §37). It has seemed expedient to treat this com¬ plicated part of the subject as follows: The Prefix RE-, §§4-10; The Prefix DE-, §§11-15; The Prefix EX- and Words of Similar Form §§16-18; Other Words, §§19-20; Before R, §§21-24; Latin Bis, §25 ; Other Exceptions, § §26— 36; Dialects, §37. 4. The Prefix RE-. — The regular result was RI- before consonants and R — the E being elided — before vowels. 5. Examples of the development of RE- before consonants: ribattere, riconoscere, ridurre, rifatto, rigettare, rilevare, ri- manere, rinunziare, ripiegare, risapere, ritoccare, rivolgere, etc., etc. 19. Studi, No. 410. 20. Cf. the debelopment of IU-I, §85. Fieri, AG XII 145 gives ragato (at Pisa), for rigato, -a case of vowel assimilation. The other cases mentioned by Fieri (ansegna, anvoglia) are results of the ag¬ glutination of the A of the fern, article, -see §32. For ancisa, men¬ tioned in this connection by Pieri, see §72. §3. Note i. For the dialects, see §37. Schlatter — The Development of the Vowel. 1083- 6. Exceptions to §5*: (a) In modern Italian. These are practically all literary words : some express ideas not known to the popular language, others have more popular forms or did have them in the old language. reboantd, recalcitrare, more usually rl-, recapitare, more common than ri- ( still ri- seems the pop. form), recapitolazione, more usually ri-, recedere, lit., hut ri- repeats ce- dere, recensione, recentd, but Andrea Lancia ri-, recesso, lit., but ri- in Egnazio Danti, recidere, ri- lllit. and ricidenda in Cellini. recidivivo, leg. and lit, cf. rica- dere, recingere, lit. for ri-, recipiente, ri- a peasant word, reciproco, reclamare, French? cf. riohia- mare, recluso, cf. richiudere, recognizione, or ri-, recon dito, ri-, obsolete, recrementizio, med. term, recriminare, legal, recrudescenza, med., recubare, redargulre, but ri- in Ariosto, redattore, redenzione, redibizione, legal, redigere, redimere, riscattare is the pop. word, redire, poetic, cf. also forms ac¬ cented riede, etc., referire, pop. ri-, refezione, uncommon or jocular, reflesso, more pop. ri-, reflusso, illiterate rl-, refocillare, more com. ri-, refrazione, more com. ri-, refrenare, usually raffrenare, ref rescare, usually rinf rescare, refugiare, pop. ri-, regredire, literary, reietto, lit. for rigettato, relative, relegare, “to relegate” illit. ri-, religare, usually ri-, religione, but ri- frequent in Old Italian, ri- in Old Sienese and rilesgione in Guittone, reluttante, lit., more com. ri-, re'mancipazione, reminiscenza, not pop., §6. Note 1. The number of learned words in modern Italian show¬ ing re- is very large; the list contains only a few typical examples. The greater part of the remarks after the exceptions are Petrocchi’s and they purpose to show that ri- is distinctly the phonetic develop¬ ment for Florence. For example, when ridarguire is mentioned as found in Ariosto, my implication is this: redarguire is decidedly a learned word, but even so a form with the regular development to ri- is found — for instance, ' in Ariosto — doubtless, investigation would Bhow ri- in this word in other writers, by whom this rare and literary word has been used. Again, ref rescare is purely literary and inas¬ much as it expresses a more or less popular idea it has a popular form, rinfrescare. The same kind of implication holds for the exceptions under (b) : the forms in re- are found scattered side by side with the forms in ri-; for example, we are likely to find ri- even in Jacopone da Todi and re- even in Dino Compagni; but this is exceptional. When Jacopone used ri-, it was pure Florentine; he regularly used re-, which was the regular form for his dialect as well as the Latin and literary form. Similarly, when Compagni uses re-, it is decidedly an exception and not a Florentine form, developed phonetically. 1084 Wisconsin Academy of Sciences , Arts, and Letters. remissione, pop. rimessione, remontu£r, French, remontolr, removere, pop. rl-, remunerare, more com. ri-, renitente, legal, renunziare, usually ri-, repellere, lit. and sclent., repentaglio, ri- obsolete, replicare, cf. forms accented rfe-, replica, etc., ri- a peasant word, cf. ripiegare, different sense, repulsa, usually ri-, requisire, bureaucratic, illit. ri-, rescindere, more pop. risecare, resecare, and ri-, the former lit., the latter semi-pop., resdzione, surgical term, resolute, lit. for ri-, respingere, but ri- repeats spin- gere, respirare, ri- in the Montagna, restauro, cf. ristoro, restio, cf. resto, etc., and ri- obsolete, restituird, ri- obs., restringere, ri- repeats stringere, resultare, usually ri-, resupino, lit., but ri- obs., resurgere, lit., cf. risorgere, retrarre, lit. for ri-, retribuird, the old language has ri- and re-, retundere, rintuzzare is the pop. word, revisione, but ri- obs. Remark. — The following are notable exceptions to the above : re- is the popular form. Perhaps these forms are an attempt to imitate the learned. The words do not contain es¬ pecially popular ideas or the ideas are usually expressed by other words. recusare, illit. for ri-, recuperare, pop. for ri-, repetere, illit. for ri-, reprensione, pop. for ri-, repudiare, pop. for ri-, repugnanza, pop. for ri-, resuscitare, more pop. than ri- and is a peasant word and living in the Montagna, retentiva, illit. for ritenitiva. (b) In Old Italian. The following are a few of the many old words in re- ; many of them were also used by Florentines, but apparently by learned or dialectic interference. rebutto (G. Giudicd di Messina, 13th cent.), = “ributta- mento”, recagnare ( Sannazaro ) ,/ = “‘irin- cagnare”, recappare (Sacchetti), but rica- pare (Cavalcanti), recatto (G. Giudice et al.), for ri- catto, receperd (Jacopone), for ricevere, recevire (Ristoro d’Arezzo), for ricevere, recherere (Guittone), for richie- dere, recoldre (Sannazaro), redamare (Castiglione), but ri- ( Jacopone), refuggio, (G. Villani), refutaggio (D. Compagni), for ri- fiuto, rdmirare (Boiardo), for ri- remuggire (Ariosto), for ri-, remuno (Sacchetti), for rimuner- azione, repatriare (Doc. Art. Sen.), for ri-, repennare (Guittone), for ri-, repensare (Boccaccio), for ri-, reporre (Bembo), for ri-, rdprobare (Jacopone), for ripro- vare. 7. Examples of the development of RE- before vowels. Schlatter — The Development of the Vowel. 1085 There are no cases of modern words except before a and i : rad- doppiare, radunare, rammentare, rammaricarsi, rannuvolare, rassegna, rincrescere, ringraziare1. In the older language we find also cases like repilogare (for riepilogare) , risaminare (for riesaminare), rempiere (for riempire) : cf. also riscire (Lucca, for riuscire). 8. Exceptions to §7 : (a) In modern Italian: reagire, rein tegr are, reiterare, and a few others, — all literary words. There are no forms in re-o ■or re-u. (b) In Old Italian: realdire (Bembo, for riudire), reedifi- care (Gr. Viliam), reinvitare (Castiglione), and a few others, — none in re-o or re-u. These are mostly literary, partly per¬ haps dialetic. 9. The cases of modern words beginning with ri-vowel are very numerous : riamare, rianimare, riarmare, riedificare, ri- entrare, riornare, riunire, etc. These are all new compounds with the Italian prefix ri-. 10. A special development of the prefix RE occurs in Arez¬ zo, Siena, and elsewhere. Apparently by a kind of vocal¬ ization of the R, there developed ar- and ara-, — for example re- placere> repiacere> r’piacere> arpiacere or arapiacere. So we find arpiacere, arcacciare, aravere (for riavere), archiedere, argire (~“ritornare,” for rigire), arescire (for riuscire), aren- trare (for rientare), arcoverare, arcomperare, arcomensare (for ricominciare), arvolere, arversare, artrovare, artogliere, arsa- gliare (for risalire), arquisizione, arprendere, amunziare, ar- minare (for rimenare), armettere, armagnenza (for rimanen- za), armanere, arliquia (for reliquia), aramortire (for ammortire, for ammorzare), arenunziare, aribellare, ar- venuto (=“divenuto”, for rivenuto). Arnione (cf. Erench §7. Note 1. Examples of words in the modern language with the pre¬ fix from RE-AD are legion. In many cases they are more or less mod¬ ern compounds. It is to be noted, too, that the prefix has in many cases lost its force and to express repetition a form in ri- is likely to be used. Compare radunare, “piu generico che adunare”, rasciugare, "rinforza asciugare”, rabballinare — “abballinare”, rammannare, "‘rinforza ammannare”, racquattarsi, literary for “acquattarsi”, rac- cozzare, = “accozzare”, raccostare, = "accostare o riaccostare,” racco- sciare, literary for “accosciarsi”, raccontare, raccomandare, raccoglier*, etc., etc. Cf. in French rassembler, ramasser, rencontrer, etc. 1086 Wisconsin Academy of Sciences, Arts, and Letters. rognon) from *renione-? occurs in Hicolo Eorteguerri and Brac- ciolini, both of Pistoia1. 11. The Prefix DE-. — The development is similar to that of RE-, but the prefix was by no means so common or so popu¬ lar1 : DI before consonants, D — E, being elided— before vowels. 12. Examples of the development of DE- before consonants,, words of the old language and of the modern: (the preposi¬ tion di,) dieatti, dichi arare, difendere, digiuno, digrignare,. digrumare, dileguare, dilettare, dilombarsi, diluviare, diman- dare, dimen are, dimenticare, dimorare, dinoccolato, dirazzare,. dirotto, discendere, disegno, disertare, dispetto, divenire, etc. 13. Exceptions: (a) In modern Italian, — all more or less literary: debellare, literary, decadere (dicadimento in G. Vil¬ iam), decapitare (di- in G. Villani). decidere, declamare, declinare (dichinare in Dante, Bibbiena, G. Villani, Sae- chetti, Pucci), decollare, literary (di- in G. Vil¬ lani, dicollazione in M. Vil¬ lani ) , decremento (dicrescenza in Cel¬ lini), decretare (dicreto in G. Villani, M. Villani, Passavanti), deferire, not pop., usually diffe- rire (from dis-; diferire in Cavalcanti), deficiente, not very pop., deformare, more com. sformare (di- Jacopone), defraudare (di- living in the mountains), degradare (di- is used for the literal meaning, and di- in Dante and M. Villani), de'liberare (de- and di- in the old language with di- more fa¬ vored), delitto (also in Dante, di- in Pucci and living in the mountains), denegare, not com. for negaro (di- in G. Villani, Varchi, Berni, Guicciardini, cf. di- nie'go, mod., for rifiuto). deporre (di- in Boccaccio, Dante,. Varchi, G. Villani, Sanna- zaro), deposito (di- in G. Villani), depravare, not pop. (di- in Caval¬ canti), deputare, not pop. (di- in Boccac¬ cio, G. Villani, Bibbiena, liv¬ ing in the Montagna), deridere (di- in Boccaccio), derivare (di- in Bembo, Passa¬ vanti, Varchi, G. Villani), derubare (dirobare in Guittone,. dirubare in Dante), descrivere (di- Boccaccio, Passa¬ vanti), desistere, not pop., destituire, determinare (di- in Dante, G. Giudice, Varchi, Boccaccio), detrarre, not pop. (di- G. Villani, Pucci), devoto, divoto is the popular form. §10. Note 1. See M.-L., Gram. d. L, R., I, §367. Ascoli, A. G., II, p. 447, gives examples of re- > ar- in Aretine territory; for this phenome¬ non, cf. also. Gascon. §11. Note’ 1. Dis- was tbe popular prefix, often reduced to s-. See §17 and Grandgent’s Introd. to Vulgar Latin, §25. Schlatter — The Development of the Vowel . 1087 (b) In the old language,— mostly by literary influence: debaccare (from Latin debac- chari ) , decervellare (di- mod. and dis- popular), declarare (mod. dichiarare), deguastare (di- in Jacopone and Pucci), delettare (Cavalcanti, Jacopone, Bibbiena, Guittone, Folgore da S. Gimignano, Vasari; but di- mod. and in Jaco¬ pone, Dante, G. Villani, Boc¬ caccio, G. Giudice, Andrea Lancia, Guit¬ tone), debmare (Sacchetti, di- in the Dittamondo), demembrare (di- mod. and G. Giudice, Cavalcanti, G. Vil¬ lani ; mod. more commonly smembrare), departire (Guittone; mod. di- but not com.; di- in Guittone, G. Giudice, Bibbiena, Dante), dependente (mod. di- and in Cel¬ lini), de’podestare (dipot- in Pucci), depopolare (di- M. Villani, Bib¬ biena; mod. spop-), deradicare (di- Boccaccio, Bibbi¬ ena, Dittamondo), derupare (mod. di- and Caval¬ canti, G. Giudice, M. Villani, Guicciardini), descende're Giving in the moun¬ tains, mod. di-, usually scen- dere; di- Ariosto, Guicciar¬ dini, and the Montagna pia- toiese), deservire (in the Boezio; di- in G. Villani, Bocc., Berni, Sacchetti), desiderare (also mod. and living in the Montagna pistoiese, di- Bocc., Dante, Varchi, Pe- trarca, Cavalcanti, living in the mountains), desperanza (mod. di- and in G. Giudice, the Dittamondo, Bib¬ biena, G. Villani, Cellini, Ca¬ valcanti, Machiavelli, Guic¬ ciardini, Varchi, et al.), desponsare (disposare mod. and Dante, M. Villani, Bibbiena, Cavalcanti, et al.), destillare (mod. di-), deverginare, devorare (mod. di- and Jacopone, Pucci, et al.)1. 14. Examples of the development of DE-vowel: da (DE¬ AD), dello (D(E)-ILLITM)1, dinanzi, donde, dove2. §13. Note 1. Under the exceptions given in §13, as well as those given in §6 and elsewhere, the investigator’s effort has been to set the material before' the reader as it appears. For that reason, out of a large number of exceptions, all of which could not and needed not be mentioned, he chose typical examples. The provenance of some of the exceptions, in the old language was, unfortunately, not always ac¬ cessible. Furthermore, everyone knows the unreliability of most of the old texts. Yet the general deductions seem to be as before stated; first, the development for Florence and hence for the modern language was I; secondly, practically all the exceptions in modern Italian are plainly learned; thirdly, the numerous double forms in the old lan¬ guage all seem attributable to learned or dialectal influence with a very strong preponderance, besides, in favor of I. When Boccaccio uses securo and sicuro on the same page’, with sicuro he uses Flor¬ entine and with securo he is confused by the frequency with which he has heard securo among his acquaintances who do not speak Flor¬ entine and by the' Latin which he has studied and which was ever present with him in a hundred daily connections. §14. Note 1. For the E in del, see §20, note 6, and the Introduc¬ tion, §7. 2. For E in hiatus, cf. also Napoli (Neapolis). 1088 Wisconsin Academy of Sciences, Arts , and Letters. 15. Exceptions t© §14: dealbare, deambulare, deargentare,. dearticolato, deaurare (cf. dorare), deiscere, deonestare, deo- struente, — al] literary and all obsolete except the last, a medi¬ cal term. 16. The Prefix Ex-, E-, Words Beginning with S-im- ptjea, Es-, Is-, et sim. Tbe prefix E- before any conson¬ ant except S gives only E-, never I-, for tbe season that all sncb words are literary: editore, educare, egestione (“liter¬ ary”1), egregio, egresso (“pedantic word for uscita”), elon- gare (— “dilungare”), elucidare, emanare (“not popular”) emettere (“not popular”) emigrare, eminente (“not popular”), enorme, enunciare (“literary”), erigere, erizzare (“obsolete for rizzare”), erogare (“not popular”), erompere (“literary”), enutrire (“=nutrire”), evaginare (=“sguainare” ) , evanire (=“svanire”), evaporare (“more com. svaporare”), evellere (“svellere”), evento (“not popular”), evidente, eviscerare (— “svi seer are”), evitare (“usually scansare, schivare”), evi- zione (“a legal term”), evocare (“not popular”), evoluzione (“not popular”) evomente (— “' vomitante” ) , etc. 17. In connection with an S, however, tbe case is different. S-impura in Vulgar Latin acquired a prosthetic I (or E), whence IS- (or ES-) ; and EX-, or E- before S-, produced IS- (or ES-) ; furthermore, words commencing with ES-, IS-, AES-, OES-, HES-, et similia, all produced IS- (or ES-), and by confusion of the meaning and form of DIS- (misunderstood for di-s- (DE-EX-), BIS-, we have an immense group of words, which in Vulgar Latin began with IS- (or ES-) and which in Italian eventually began with s-consonant, by loss of the initial I- (or E-). This S, therefore, is of various sources, sometimes a resultant of several forces1. In all these cases the old lan¬ guage had usually s- (occasionally is-, and dialectic or literary §16. Note 1. The remarks are Petrocchi’s. §17. Note 1. Cf. strattare, bistrattare, = “maltrattare” but the source of the s- of strattare, is DIS-, BIS-, EX-, melted into Italian S-. So this Italian prefix has several meanings: negative (sballare, = “contrario d’ imballare”), intensive or pejorative (sbeffa, = “rinforza beffa”), sometimes both (sbarrare, 1. = “impedire (con sbarra)”, 2. = “spalaneare (gli occhi)”; sbandire, 1. = “rinforza bandire”, 2. =“contrario di bandire”), etc. See M.-L., Italienische Gram., §144. Schlatter — The Development of the Vowel . 1089' es-) and the modern has only s- or by learned influence es-, ex¬ cept a few cases from INS-, like iscrizione, i sol are, ispettore, ispirare, istante, istigare, istinto, istituire, istrumento (but normally strumento), instruzione. These last, with their de¬ rivatives and half a dozen words like Islamismo, Israele, iso- gono, are the only words now commencing with is- and the ob¬ solete words are are rare2. 18. A few cases of this numerous group will be sufficient to exemplify : (a) Cases of Resultant ES-, E-. — Of these, those which are still in use are purely literary and those which are obso¬ lete are mostly literary and partly perhaps dialectic: ebollire, eccellente, eccentrico, eccezione, eccidio, eccitare, elaborare,. elargire, elegante, eleggere, elevare, elidere, emenda, emun- gere, enucliare, enunciare, erompere, esatto, eschiudere (but schiudere is the modern form) escludere, esclamare (but scla- mare, popular modern), esempio, espegnere (obsolete for spengere), esperienza (but sperienza is illiterate modern), espiare, espirare, esplicare (cf. spiegare), esplodere, esploratore (sploratore is a more popular modern form), espressione (but spresso, illiterate for espresso), esprofesso, esteriore, estrarre (but strarre, modern illiterate), evitare. If these words are not strictly and admittedly learned (including esempio') cer¬ tainly the E is due to the influence of those who were acquainted with Latin and felt the necessity and correctness of E, not I, and their influence prevailed over the less educated. (b) Cases of Resultant S. — sbadare, sbadigliare, jeba- gliare, sbalordire, sbatacchiare, sbattere, scomodare, sdraiare, sfaccendare, sgranare, sgretolare, sgusciare, slattare, smammo- larsi, spavento, spedire, squasi (for quasi, a peasant word)1. 2. Except also the survival occasionally of i before s-impura, after certain consonants, as in iscuola , etc., — but these cases are now few and considered pedantic, although many are thoroughly popular in Tuscany. §18. Note 1. Also found at Pisa, — see Pierl, AG XII 153. 1090 Wisconsin Academy of Sciences, Arts , and Letters, (c) Cases of Doublets. — The regular form in s- is placed first, whether obsolete or modern : schermidore, modern, eschermidore, in Cavalcanti; schifare and schivard, modern, eschifare, in S. Cater ina; scialare, modern popular, esalare, modern literary; sciame, modern, esciame, obsolete; sciugare, illiterate, asciugare, mod. (prefix confu¬ sion) ; sciutto, in Jacopone and living asciutto; modern; among the peasants and at Siena, scluso, mod. illit., scremento, mod. illit., scrizione, mod. illit., scrude’re, mod. peasant, spansivo, obsolete, specialmente, mod., sponere, illit., sporre, pop., spotico, pop. “padrone spotico”, sprete, peasant, spugnare, obsolete, stanza, 14th century, state, pop. (and sta), stigare, 13th-16th centuries, stimare, mod., stituire, illit. and peasant, stituzione, illit. and 14th cent., straneo, Cavalcanti, straordinario, mod., stravagante, mod., stremamente, popular, stribuire, 14th century, strigare, mod., strione, obsolete, struire, illit., struziond, 13th and 14th centur¬ ies. The examples, listed in the three classes above, seem to in¬ dicate the development of all these forms to I. This develop¬ ment was thwarted in two ways: first, the regularly tendency to drop the I2 3, and secondly, the learned (and occasionally dia¬ lectic) tendency towards E. 19. Other Words. — The development is to I, as usual. Ex¬ amples : cicala, disagio, discorrere, disdire, disfare, dispiacere, 2. Escaiolo, etc., preserve the E by analogy with esca; escire, escita, “more popular than uscird, etc.”, by esco, esci, etc., — cf. scire (13th century). 3. Of course, the reasons for this dropping are very simple: elision of the weak I after a word ending with a vowel would explain most cases, — lo istesso lo ’stesso. In this particular case, l’istesso happens to be still fairly common, beside lo stesso. Cf. §85. escluso, mod. lit.; escremento, mod. literary; iscrizione, mod.; escludere, mod. literary; espansivo, mod. literary; espezialmente, obsolete; esporre, semi-literary ; despotico, dispotico, mod. ; ex-prete ; espugnare, mod.; istanza, mod.; estate, mod. ; istigare, mod.; estimare, mod., not popular; istituire, mod.; istituzione, mod.; estraneo, mod. lit.; estraordinario, obsolete; estravagante, obsolete; estre'mamente, mod.; distribuire, mod.; estricare, obsolete; istrione (from HI STRIONE-) ; istruire, mod. ; Schlatter — The Development of the Vowel . 1091 disturb are, ginestra, ginocchio, il, the preposition in, in- in compounds (inciampicare, indietro, insieme, intanto, etc,), mi, misura, nipote, prigione, si, ti, etc. 20. Exceptions : (a) Words influenced by allied forms, in which the accent is on the first syllable. Such exceptions are exceedingly nu¬ merous, especially in verbs and in words with any of the many Italian suffixes, — for example, pedaggio, pedagna, pedagnola, pedale, pedaleggiare, pedaliera, pedana, pedata, pedina, pe- dona, etc., etc., influenced by piede, — and piedaccio, etc., where even the diphthong intrudes itself into the initial syllable. This kind of analogy is rarely counteracted by the regular develop¬ ment, although there are quite a number of cases where the regular form appears in the old language sporadically or dia- lectally (cf. under (c.) ). In the doublet gittare and gettare (<*jectare), both the regular and the analogical forms have survived1. Learned influence may also have had some bear¬ ing in several cases : bellezza, bellimbusto, etc (bello)2: benandare, benedire, benche etc. (bene) •; dendare (benda) ; beone, bevanda, bevao- qua, beveraggio (bevere, bere) ; ciechezza, etc. (cieco) ; creare (creo, etc. : eri’are in Dante, Cavalcanti, Petrarca, Pucci, et al. and living among the peasants); diecina (dieci; but cf. dici- annove) ; dentale, etc. (dente) ; destare (desto, etc.) ; deschetto annove) ; dentale, etc. (dente) ; destare (desto, etc.) ; deschetto (desco) ; destrezza (destro) ; dettare (detto, etc.) ; densita (dense) ; empire (empio, empiere, etc.) ; entrare, etc. (entro, etc.) ; embriciata (embrice) ; fremente (fremere) ; fedele, etc. (fede) ; freschezza (fresco); fienile; fievolezza; fregare; fre- nare; gentile (gente, or compare note 7 to this §) ; gesticolare (gesto) ; legame (lego, etc., learned; cf. li'ama in Dante da Maiano, lianza in M. Villani) ; melappio (mela) ; melassa (mele, miele; see D’Ovidio, Korn. XXV 302); mentecatto §20. Note 1. Here, too, however, the analogical form has about driven out the regular, and Petrocchi brands gittare as literary, — that is, the word has followed the example of most similar words by as¬ suming the analogical form entirely and gittare is assuming a smack of the antique and literary. 2. Cf. the regular form bilt^ in the old language. 1092 Wisconsin Academy of Sciences , Arts, and Letters. (mente) ; mestura (pop. for mistura ; mestolo, mescolo, etc.); mietitore (mietere) ; mescuglio (mescolo, etc.) ; menzogna (mento, menti, etc., now mentisco, etc.) ; mentovar© (mentovo, etc.); mendicante (mendico, mendichi, etc.; the substantive is accented mendico) ; messaggio (messo) ; megliore (meglio ; cf. migliore, the commoner form to-day) ; pensier© (penso, etc.) ; peperone (pope); peggiore (peggio; piggiore frequent in Old Italian); pettegolo (petto; derivation?); prezioso (prezzo) ; preghiera (prego, etc.) ; pelacchiare (pelo) ; pendio (pendere) ; reticolare (rete) ; seguire (seguo, etc.)3; sceverare (scevero, etc.) ; selvaggio (selva) ; senese (Siena) ; settimana (sette) ; sentire, sentimento (sento, etc.) ; sessanta (sei) ; sepale (siepe) ; stendardo (stendere) ; tenaglia (tengo, etc. ; the usual word is tanaglia, — vowel assimilation, see §26) ; tenere (tengo, etc.) ; tendenza (tendere) ; tempesta, temporal© (tempo) ; tremolare, tremendo (tremolo, tremo, etc.) ; veleggiare (vela) ; venturo (vengo, etc.) ; vestito (vesto, etc.) ; ventaglio, ventarola (vento) ; vezzeggiare (vezzo) ; vendetta (vendico, etc.) ; etc. (b) Learned words4. These are very numerous, some read¬ ily observed and incontrovertibly learned in the old language or in the modern, others not quite so discernible. Of the former, only a few typical examples are mentioned: betonica, cemento5, decente, edace, elastico, festino (from Classic Latin festinus), genuino, lepore, mediocre, nefando, penuria, sedurre, temulento, zedoario, etc., etc. The following are probably all learned to a greater or less degree; in some cases, other per¬ verting factors, such as vowel assimilation, may have assisted in preserving the irregular form. In a great many cases, forms in I existed sporadically. In regard to some of the words, a comparison of the same word in French, where learned words 3. Pucci uses siguire. Many of these cases would be aided in their perversion by other causes. 4. Learned words follow the foreign spelling to a greater or less ex¬ tent; normally e, ae, oe, are spelled e, i and y, i: delitto, economia, edi- ficare, fenomeno, mefitico, respiro. idea, idillio, immenso, minuto. The literary state of the i-forms can be discerned only by their use; these are of no importance to the present investigation. 5. English cement; even he're a form in ci- is used among the peas¬ ants. Schlatter-— The Development of the Vowel, 1093 are more recognizable, will show a learned or semi-learned de¬ velopment in that language.® benigno (also bendgno, obsolete; bene may have had some in¬ fluence, also)T, crepuscolo, decembre (cf. Fr. decembre), epitaf(f)io (illit. pitaffio), eterno, dziandio, febbraio (cf. French fdvrier), felice (semi-learned; Alice in G. Villani and living in some neighboring dialects), felino, frequentare, geloso ( semi-learned ) , gemello, generale and generoso (besides analogy of gdnere ) , leale (semi-learned, li'ale in the old language), legale (besides influence of legge), leggiadro (and influence of leg- giero, see §26), legittimo (li- in Bocc.), legume (cf. French legume), levriere (borrowed from French? li- also found, obsolete), lezione (besides influence of leg- gere), medaglia, memoria (cf. French memoire), meschino (borrowed from French), mestiere (borrowed from French), metallo (cf. French metal) melancolia (the more pop. form is mal- or man-), necessario (cf. French neces- saire, nicistk in Pucci and com. in old language) neghittoso (semi-lit., cf. snighit- tire, obs. for sneghittire), negletto, negozio, penisola, petecchia, petulante, pre- (cf. French pre-), precedere (precipitare, precise, preludio, preoccupare, prepar- are, preporre, presente, pre- servare, presumere, preten- dere, prevedere, etc.), scellerato (cf. French scelerat), secondo (si- in 13, 14th centuries, and living in the mountains and in Sienese; sigondo is used by the peasants), secreto (lit. and illit., sigreto is illit. and peasant; segreto is the' usual form), securo (lit. and illit.; siguro in use among the peasants; sic- uro is the usual form)6 7 8, severo (si- in the Yaldichiana) , spelonca (spi- in Fr. da Barbe- rino and living at Siena), spettacolo, teatro, tegame, tenzone (tincionare is a peasant word in Pananti), 6. It seems that the development to I must have ceased long ago, at least newly-formed words, or those which became’ unaccented rather late, do not appear to follow the rule; cf. (il, but) del (d’ellu), nel (in ellu), mel (m’ellu), sen (s’ende), — so eta, meta, que’, e’’ etc. Yet, besides il, there is the illit. form qui’ for quel (“qui’ coso”). See §85 and note 5 to same and Introduction, §7. 7. Certain words suggest a tendency to a development to E when the next syllable contains accented I: bellico, benigno, destino, felice, gengiva (but gin- illit. and peasant), gentild, genia, lentischio, meschi¬ no, nemico (vowel dissimilation? ni- very common especially among the old Florentine writers), quesire, redicolo (pop. and illit. for ri-), sentina, Tesifond (Dante, Inf. IX 48), trestizia (obsolete), vegilia (il¬ lit.), vescica. Delizia, fenice, penisola, veicolo, vestibolo, vestigio, are probably all literary and therefore not to be quoted in this connection. 8. On secreto and securo being illit. forms, cf. .§6 (a), Remark,. 1094 Wisconsin Academy of Sciences , Arts, and Letters. tesoro, veemente, vegetabile, veicolo, veloce, vescica, vespertilio, vestigio, veterano, vettovaglia, vettura. (c) Double forms. — A few only of many are given, with the intention that they may help to show the development. They largely belong to the old language; the modem has usually adopted one form or the other. In any case the i-form is th9 regular one and the e-form is a learned or dialectic intrusion. In some cases both are more or less learned. beato (mod.), biato* (Tancia)9; betulla (mod. lit.), cf. bidollo; (ac)cecare, cicare (obs.19); ceciglia (annal. of cieco), cicig- lia (both mod.) ; celendrare (Band. ant. lucch.), ci- (mod.); celeste (mod.), cilestro (Dante, Bocc., Poliz., G, Vill.) ; celice (Guittone), cilizio (mod.); cemeterio (mod.),cimi- (Bartoli); cetriolo (mod., anal, of cedro?), ci- (Redi, Forteguerri, Ala- manni) ; Creolo (mod.), criolio (Maga- lotti ) ; debilitare, di- (Bembo) ; decembre, di- (both mod.)* 11; denaro (but da- is preferred), di- (obs) ; despotico, dispotico (both mod. dis- preferred) ; destino, di- (Enzo Re) ; emprenato ( Jacopone12), impre- gnato (mod.); encendere (Cavalcanti, plainly dialectic), incendiare (mod.); enferta (Guittone), infermitd (mod.) ; enganno (Bindo Bonichi of Si¬ ena, Guittone), in- (mod.); fenice’, fi- (S'. Ag.); fedele, fi- (Bembo, G. Giudice, Ja¬ copone) ; felice, fi- (G. Villani et al.); festuca (mod. lit.), fistuga (Sac- chetti) ; geometria, giometrica (obs.), giu- metria (Pucci); Gregorio, San Gri- (Fiore di Fi- losofi, D’Ancona e Bacci’s Manuale, is 142); eguale, i- (Bocc., Dante, Centilo- quio, Tesoretto); leatico ( illit. ) , li- (peasant; both aphetic) ; legione, li- (obs.); lemosina, li- (both mod.; li- pre- 9. For E in hiatus> I, cf. cri’are, now creare by influence of creo, etc., li‘ale for le’ale, li'ama for legame, — all obs. 10. Petrocchi does not always give the exact provenance. 11. In the Ricordi di Matasala di Spinello senese (1233-1243; tea Monaci p. 36 seq.), the influence of learning seems quite well exempli¬ fied. This is a Sienese document, at which city the development wa* E or I (see § 37), but is interesting as collateral testimony. This document begins: “Anno Domini .M.CC.XXXIII. in kalen decenbre. cheste sono le sspese fatte del mese di dicenbre.” Decenbre is semi- Latin in a Latin expression, dicenbre is among the Italian words. In line 132, similarly, the writer says: “Anno Domini .M.CC.XXXVIII. in kalendis genuari” . . . Genuari, semi-Latin with the Latin expression,, whereas elsewhere’ he uses genajo (lines 21, 82, 102, 141). 12. Jacopone da Todi also uses empromettere, enante, enfrenato, en- semora, entanno (intanto), entenza, lenguaio. Folgore da S Gimi¬ gnano uses empergolato, emperiato (impero), enibriarsi. Cf. §37. 1095 Schlatter— The Development of the Vowel ferred), rimosina (Centilo- quio; all aphetic); lentiggine, 1m- (obs.) ; leone, 11- (illit. and Andrea da Barb., G. Vill., Dante, Maga- iotti); , leopardo, li- (illit. and Andrea da Barb.) ; letame, li- (obs.) ; letteratura, lit- (Camm. ; liter¬ ary in any case) ; Melano (Dante), Milano; menestrello (mod. lit.), mi- (Tratt. Pecc. Mort.); menore (obs.), mi- (mod.); mescolanza (mod. anal, of mes- colo, etc.), miscianza (G. Vil- lani ) ; mesenterio (mod. medical), mi- (Rucellai) : mesfatto (Guittone), mis- (mod.); messere, mi- (Siena and obs.); meslea (from French, Old Sien¬ ese), mis- (Ciriff. et al.); mestiere, mi- (Compagni, Centil., living in the mountains) ; nepote (mod. illit), ni- (usual mod. form, Cavalcanti et al.) ; nessuno (mod. influence of n6, Pecorone et al.), ni- (mod. illit.) ; pe’ (prep. mod. illit. for per), pi’ (illit. and peasant word) ; pellicciato (influence of pelle, mod.), pi- (Fr. Giord. et al.); pesello (Alamanni), pi- (mod.); pestilenza (mod.), pistilenz(i)a (G. Villani, Caval., Bocc., Varchi, living in the moun¬ tains) ; petizione (mod.), pi- (Caval. et al.); pettirosso, pi- (peasant and mod. Pistoiese) ; pregione (obs.), pri- (mod.); quesito, qui- (both mod., the lat¬ ter illit.) ; questionare, qui- (both mod., qui- more pop. and in Bocc.) ; registro (mod.), ligistro (obs.); reflente, ripentino (obs.); resia13 (illit.), risiarche (Chiosat. Dante; both aphetic) ; resipola, ri- (both mod., ri- pre¬ ferred) ; retaggio (mod. lit. poet.), ri- (obs.) ; rettorica, ritorica (G. Vill.); sedere, si- (Dante); seguire, si- (Pucci); sempatia (illit., and peasant), sim- (mod.) ; seniscalso (obs.), siniscalco (mod.), siscalco (Barb.); smemorato, (mod.), smi- (obs.); sneghittire, sni- (obs.) ; j spessezza, spissitudine (obs.); tenore, ti- (Tav. Rit.) ; tepore, ti- (16th century), ti&~ (obs.) ; trebuto (obs., but living in the mountains), tri- (mod.); trebuno (13th century), tri- (old/ and mod.) ; trefoglio (obs.), tri- (old and mod.), tra- (peasant, by con¬ fusion with the prepositions tra) ; vedovile, vi- (obs.); veneziano, vini- (13th-16th cen¬ turies) ; Venezia, Vinegia (Pucci et al.); vestire (by anal, of vesto, etc.), vistita (Maestro Francesco14); zenzania (14th century), zin- (14th century and peasant), zizzania, £i£ana. 21. BEFORE R. — The usual development is to E. 22. EXAMPLES : (a) bergamotta, berillo, berretta, bersaglio, bertuello (and bertabello; feriae augusti), ghermi- 13. Resia, resipola, retaggio, are also aphetic forms. 14. A Florentine, see Monaci, p. 309. 1096 Wisconsin Academy of Sciences, Arts, and Letters. nella, gherone,1 meraviglia ( <*mirabilia, Classic mirabilia), mercoledi, merenda, meriggio, merluzzo,2 the preposition per, derivatives of PEE- in composition (never>pir-; percuotere, perdonare, etc.), pericolo (and periglio), pernice, pertugio, sereno, smeriglio,3 terebentina, terrore, vergogna, vermiglio, verricello, verrocchio (cf. French verrou), verruca, veruno, bertoldo (German Berthold), ferraiolo. (b) learned words: eresia, eroe, gerarchia, geroglifico, mere- trice, merore, persona, sermone, verdetto, verecondo, veronica, etc., etc. (c) Words possibly influenced by allied forms: bergolare (bergolo; sororchia> seroccbia, by dissimilation of 0-0 to E-0), virtu (for vertu4).5 24. ER BECOMING AR. — This development seems to be sporadic, rather than local. Examples: iarsera, illit. for iersera; arrante, for errante1 2; areticare, — abestemmiare,” from eretico; aretaggio, for eretaggio; farnetico, from *ferne- tico, for frenetico ; starnutare, for sternutare ; parlato, for per- lato, for prelato (in Brunette’ s Tesoretto and elsewhere) ; parentorio (in Cavalcanti and Boccaccio), for perentorio ;* marcorella (beside mercorella), — “mercurialis annua;” star- lino, from English sterling; sargente, mod. illit. for ser- gente3.4 3. Cf. sberluciare and sbeffa; D.-H. states that the French balafre is derived from ba (Latin bis) and OHGerm. left'ur, lip; these words are probably of similar origin, therefore. 4. Both virtu and vertu were common in the old language and the lat¬ ter is now a peasant form; the reason that virtu has ousted the form in E is hard to surmise, although viro and many derivatives were very common formerly. 5. Soriani and Soria (common formerly) came into Italian when the Greek v was pronounced o, -cf. borsa, lonza, torsa, tomba, etc. Sci- rocco (Arabic schoruq) and sciroppo (Arabic scharab) are apparently secondary reductions, -cf. §85. §24. Note 1. Cf. English arrant. 2. Possibly parente influenced this word. 3. Such developments, accented as well as unaccented, are of course common to other languages, -cf. English dark, for clerk, sergeant, etc., the local pronunciation har, thar, etc., for here, there, etc., French par, marchand; see Schwan-Behrens, Gram, des Altfranzosischen, 7th ed., §84 A, and for Spanish, Menendez Pidal, Gramatica Historica Espanola, §18, 3). Pieri, AG XII 113, mentions at Lucca quarella, for querela, and gliarsera (among the peasants). 4. The letter R is often responsible for the passage of a contiguous vowel from before R to after, or vice versa; this seldom changes the vowel itself. Cf. the following: berlengo, “tavola, luogo da mangiare,” from bretling (cf. French brelan) ; robiglia, from ervilia (to erb-, to reb-, then by labial influence, rob-) ; treato (13th century and mod. peasant; this is only a shift of R from one syllable to the other), for teatro; parlato, perlato, for prelato; farnetico, from frenetico; stra- nuto (mod. pop.), for starnuto; spregiuro (14th century), for spe’rgiuro; sprifottia, for sperfottia (mod., — “disgrazia”), from *e-x- per-futt(u)ere; bertesca, for brettesca (see Foerster, ZRPh VI 113); pretuzza, for pietruzza; ghermire, from OHGerm. krimman (gremire in Bdrni) ; probably bertelle (cf. French bretelles) ; probably berloccbe Schlatter— The Development of the Vowel. 109£ 25. Latin Bis and Bi. — This prefix in some words appar¬ ently developed through the stages bes-, her-, bar-, ba-, and s- (the last by confusion with ex-, dis-, etc.1) and appears in Ital¬ ian as follows2: bisognare, from bi-sonium; biciancola, “specie d’altalena,” from ( ?) bis-ancola3; bilancia ; bicciacuto, “sorta di strumento offensivo,” from bis-acutu-; bernoccolo, bernoc- chio, birignoocolo ; sbillacco, for bislacco4, “stravagante senza garho, ne grazia, ne ingegno;” bistrattare, “maltrattare ;” biroldo,5 “salsicciotto ;” barocchio, “treccie ravvolte dietro al capo;5” barlume, “lume debole e incerto che non lascia dis- tinguer gli oggetti” (cf. Spanish vislumbre) ; and similarly to barlume, also barluzzo and bruzzico, in the expressions a bar- luzzo, a bruzzico, “la mattina avanti giorno ;” a bardosso and a bisdosso, “senza sella ;” stentare, stento, for bistentare * balordo;6 bislungo; bistondo; sberluciare, at Siena, '“alluc- ciare,” “guardar fisso qua e la avidamente,” and sbiluciare, same meaning.7 26. Vowel Assimilation. — Sanato, for senato; salvag- gio,1 but now usually selvaggio, by influence of selva; piata, piatanza, spiatato, for pieta, etc.; pataflio, for (e)pitaffio; maraviglia; amatita, from haematite-; marangone, from (in the expression “far berlicche e berlocche,” “barattar le parole,, non le mantenere;” cf. French breloque) ; in the case of an I, gril- landa and grelanda, for ghirlanda; in the case of an A, sbernare, for sbranarej in the case of an 0, scropire (peasant), for scoprire (but this is a'mere transference of the R from the second to the first sylla¬ ble). The forms areticare and aretaggio might belong to the group mentioned in §27 (a). §25. Note 1. See §17. 2. The development of form and meaning is not certain; see M-L., Gram. d. L. R., IT, §540, and Darmesteter, Mots Composes, 2nd edition, p. 122 seq. 3. According to Calx, Studi, No. 206; why not biciancola, from cianca, zanca? 4. For the etymology, see Korting, No. 1413, Caix, Studi, Nos. 207, 370. 5. From (?) birotulu-; cf. Caix, Studi, Nos. 204, 89, and Parodi, Rom. XVII, pp. 54-55. 6. From (?) bis-luridu- or (?) bi- rotulu-; cf. French balourd, Old French beslort. Sec C. Pascal, in Studi di Filol. Rom., VII 89. 7. Sbalurce in Romagna, sbarliisa in Lombardia; see Caix, Studi,. No. 151. Cf. French bevue and Italian svista. §26. Note 1. Perhaps the L was of influence; cf. Schwan-Behrens, Gram, des Altfranzosischen, 7th ed., §84 A. 1100 Wisconsin Academy of Sciences, Arts, and Letters. meragone ;2 danaro (the derived forms are very numerous) ; barbasso, from verbasco, with analogy of barba ;3 magrana, for (e)micrania; tanaglia, from tenacula; veleno and veneno; leggiero; medesimo, for midesimo; rognone, from ren-ione-;4 popone, for pepone (but perhaps this irregularity is due to labialization); uguagliare, uguale;5 6 ugiulare, from ejulare;® Greek ri0u/xaAA , Latin tithymallu- a plant, >titimalo, titi- maglio, totomaglio,7 tutumaglio, turtumaglio ; segreto, for sigreto (unless a learned or dialectic word) ; zanzara, from zinz-ula with change of suffix;8 stripicciare (15th century and mod. illit.), for stropicciare ; and apparently masagio, for mesagio, misagio, =“disagio.”9 27. Confusion of Prefix. — These are cases where a prefix has intruded itself into a word analogically in the place of an¬ other prefix or in the place of another more or less similar initial syllable. (a) Intrusion of Ad-: afficacia (efficacia) ; assaggiare ( strobbiare> strubbiare1 ; flobotomia, for flebotomia, derivative of Greek obbriaco and ubbriaco, for e(b)briaco; robiglia, rubiglia, etc., from ervilia, after the shift of E and R had pro- 3. For the etymology of spilungone, see Calx, Studi, No. 590. 4. Cf. the derived, depreciativ© meaning of English “smell.’* 5. See Delbouille, Rom. XYII 597-8; Caix, Studi, No. 59. §29. Note 1. Cf. Caix, Studi, No. 609; cf. §61 (c). 1104 Wisconsin Academy of Sciences, Arts, and Letters. duced revilia;2 rubello, robello (also contaminated with rubare,, robare) from rebello or ribello; rubaldo presents the same case. (b) Before M: romanere (Guinizelli et al.), for rimanere; romito, for (e)remito; somigliare (mod. illiterate sumigliare) ; domandare; ombnto (mod. popular, and umbuto a peasant word) for imbuto;3 domani, domattina, domonio (in the Vita S. Aless.), for demonio, dimonio; giomella (in the old lan¬ guage, but still living in the mountains, for giumella), from gemella;4 lumaca, from limax (possibly lume also influenced this word) ; lomia, lumia, for limia.5 6 (c) Before P : dopo, doppo, doppoi, from depost. 0 (d) Before V : rovello (“stizza rabbiosa”), from rebell-is7p piovano, la Lamagna> la Magna. Schlatter — The Development of the Vowel. 1105 from tvayyiXiov; ehiesa, giesa, clesia, etc., from iKKXrjala; pifania (mod. peasant), befania (mod. illit.), from epifania, from eVt^avcia — also Befana2; rondine, from hirundine-; leccio, “quercus ilex,” from *iliceu-, Classic I-3; saggio, sag- giare, from exagiu-, etc.4 5; matita, from ai/umrqs 6 ; timologia (14th century), for etimologia; guaglianza, gualivo, for egua- glianza, eguale, from aequale-, etc.; pistola, for epistola; cu- lomia, colomia (mod. peasant), for economia; snto, for es- suto; zotico, from iSiwtikos6; pilessia (mod. peasant), for epilessia ; patta, for epatta (English epact) ; patico. for epa- tico; Talia (13th century), Taliano (mod. peasant), for Italia, etc.7; pataffio, for (e)pitaffio; lisire, lisirvite, for elisire, elisir- vite; lastico, lasti'o (peasant), for elastico; yentuale, for even¬ tuate ; piteto, pitetto, for epiteto; pocrisia (Jacopone and mod. illit.), for ipocrisia; hernia, — “mantello di donna”, from Hi¬ bernia; mendanza, for ammenda ; clittica, for eclittica; com¬ pounds in which ECCE-EIJM (>ecco and eccu’) have entered, — quelui, queloro, (at Arezzo), cola, codesto, costa, cotale, co- tanto, colui, eosi, quinci, quindi, qui, et sim. ; burro, for eburro, — ‘avorio” ; likewise burneo ; riccio, from ericiu- ; ruca, ruchetta from eruca (in Horace; uruca is also a Classic form) ; rore, for errore ; ratio, in the expression (obsolete) “an- dar ratio”,— “bighelloni, oziando”, from *errativu-8; ruggine, from aerugine-; resipola, risipola, from epvc-urlXa^ retico, resia, risiarche, etc., for eretico, etc. ; romaiolo, ramaiolo, = “sorta di cucchiaio,” from aermariolu-; rame, from aerame-; ramarro, if derived from aeramen9 ; dificio, dificare, etc., for edificio, etc. ; 2. From the form accented epifhnia, as pana from pania, etc.; for the B, cf. bottega. 3. See Ulrich ZRPh XIX 576. and Grober, ALL III 143. 4. There is also a form esagio, “la 6a parte dell’oncia,” cf. Spanish ensayo, asayar, ensayar. See Canello, AG III 392, and Grober, ALL II 279. 5. Other non-aphetic forms are ematite, ematita, amatita; the “blood¬ stone”,— see Canello, AG III 392. 6. Semi-learned. See Calx, Studi, No. 68. Manage thought cf exoti- cus, but Diez doubted the development of X to Z. 7. “In ’Talia” is used in Andrea da Barberino; cf. also Pleri, AG XII, 153. 8. Cf. Old Spanish radio. 9. Cf., in English, the name copper-snake; but see Flechia, AG III 162. There are also the forms ramaolo and ramavolo in the Montagna pis- toiese. 1106 Wisconsin Academy of Sciences, Arts, and Letters. lemosina, limosina, etc., from eAc^/xoo-wr/; piscopo, vescovo, from episcopu-; micrania, migrana, magrana, etc., and emi- crania, from Kpaivryi ? a; briaco, from ebriacu- (also brio, bri- oso?); remito, romito, etc., from eremitu-, from w/*os ; rede, retaggio, redetare, etc., from erede, etc.; nestare, for innestare; nemico, from inimicu-; pittima, from €7ri^/xa; maginare, ma- gine (in Dante et al.), for immaginare, etc.; nentrare (peas¬ ant), from in-entrare; and, by analogy of this compound, nus- cire (peasant), from in-uscire10; forms from the pronoun ille,- lo, la, laggm, li ( < illic) , gli, gliene, gnene, et sim. ; nel, nello, etc., from in-illu-; ne, from ene luistico> luvistico> ruvis- tico, and rovistico (by analogy of rubo, rovo ?), — the forms lui- stico, ruistico, ruvistico, rovistico are found1. 32. Agglutination'. — A, from the definite or indefinite feminine singular article, became attached to the following words: ancudine, from (il)la incudine ; anguinaia, from *in- guinaria, from inguen; arete, for rete; aringhiera, for rin- ghiera, = “bigoncia1. 33. Syncope. — Scure, from Latin secure- (securis) ; tre- moto, for terremoto (terrae motu-), t’remoto, with analogy of tremare; frasca, from * siguro> si‘uro> suro. 2. Enl€ve was used in English by Maundey In 1400, see Oxford Dic¬ tionary, sub voce. 3. These are but a few of the numerous foreign borrowings of the old and especially of the modern language. §37. Note 1. See Introduction, §5. 2. Rom. XVIII 590. 3. Dead by 1280; his language is quite contaminated by the hybrid language of the Sicilian School. See Wiese, Altitalienisches Lesebuch, pp. 211-214. 4. Thirteenth century; see Monaci, p. 309. 5. Thirteenth century; see Monaci, pp. 488-492. 6. Dead in 1390; see Frizzi, Prop. XI, parte 2a, pp. 105-125. 1110 Wisconsin Academy of Sciences, Arts, and Letters. regular, even bilta, tinor (for tenore), criatura, but el (for il)7 frequently, reverenza (literary, as today) and riverenza, peni- tenza (literary, as today). Feo Belcari8; regular, even git- tare, dilicatamente, niuno, dimando, but desiderando (E, like the modern form probably by influence of the secondary ac¬ cent ?). Prato. — Compagnetto9 : perfectly like Florentine, except nejente (E by influence of ne) and leanza (a word common to the writers of the Sicilian School). GROUP 2. — Pistoia. — A document of 125910: regular!}' I, even dinari, but sengnoria, mesere (for messere), nessuno (influence of ne), nepoti. Meo Abbracciavacca r11 decidedly I, but messer (for messere), creato (by influence of creo, etc., like the modern Italian form) and criatura, entenda (probably by influence of the Sicilian School). Lucca. — Buonagiunta :12 usually I, but lealmente (and re- gina). Document of T26813: regularly I, but denari. An¬ other thirteenth century document:14 I, but occasionally de- (in composition). Document of 1330-1384 :15 regularly I, even chidirai (for chiederai), spidale, intrare (beside en¬ tered, for entrero), but denaio (beside dinari), despecto (but more often dispecto). Pieri’s article;1'’ seems to show a little less tendency to I than the sources just considered; but yet vissica (for vescica), iscire (peasant), ciglieri (for cellario, — all these forms have I in the following syllable, however), and 7. This form, which was common in old Florentine, seems to have hesitated to assume I longer than most words containing initial un¬ accented E, perhaps through the influence of such forms as del, egli, etc. See §20, note 6, and Introduction, §7. 8. 1410-1484; sde Albertazzi, Prop. XVIII, parte 2a, 225-248. For other Florentine documents, which howe'ver present nothing new, see Monaci, pp. 246, 273, 274, 280, 349, 354, 425, 519; for the 16th century, Cellini’s Vita. 9. Apparently a “giullare;” 13th century; see Monaci, pp. 94-95. 10. See Berlan, Prop. IX, parte la, 252-257. 11. Thirteenth century; see Monaci, pp. 194-195. 12. Thirteenth century; see Wiese, Altit. Lesebuch, pp. 208-210. 13. See Monaci, pp 327-328. 14. See Monaci, pp. 193-194. 15. See Bongi, Prop., 2a ser., Ill, parte la, pp. 75-134. 16. AG XII 107-134 and 161-180. The article largely concerns the modern dialect; however, as it mentions only non-Florentine forms it is not easy to judge of the others. Schlatter — The Development of the Vowel. 1111 spidale (and even pirucca, beside perrucca) ; but pepone, pre- gione, fenire, menuto, prencipio, celendrare, empossibolo, and among the peasants segura (for scure), seguro, defatti, defetto, and in tbe mountains degiuno. Salvioni’s notes on old and modern Lucehese;17 very decidedly I, - — criatore, distinn, dili- zie, dilicate, disidera, difinire, dilivransa, rispiro, ristituire, risistenza, riplicare, rigistrato, tinere, spiloncha, sicuri, tin- cione, diserto (and de-), dimeriti, dilegati, dicollare, dicapi- tati (and even virone, for verone). Fagnano:18 decidedly I: but emposte (besides imponere), nessuno, lealmente, seppellire (also sera, seranno, and less fre¬ quently sa-). A document of 1300 involving Pisa and Lucca:19 decidedly I, even midicina, rifictorio, disideramento, rimiti, pigiori, ri- cente, ligaltade, criato, mistieri (and sirebbe) ; but vettoria (beside vitt-). Pisa. — A thirteenth century document20 prefers I, but enten- da (beside intensa), temore, neente.21 Another document of about 1275 (?):22 regularly I, but de (beside di), leansa, en (rarely, usually in). Another of the thirteenth century:28 regularly I, but occasionally en (for in). Another of 1279 :24 shows I. Another of 1279 :25 regularly I,- divota, Biatrice, lione, ispitale, isciente (for uscente), Grigoro; but el (beside il), rebellione (beside ribelli), secundo (probably Latin), de (usually di), sepulto (Latin?). Pieri’s article:26 shows I, but greater inclination to E than in Lucca, -sigondo, sicura (for scure), issuto (and essuto), vissica, firire, dicina, iscire, mis- chino, pricisione (for pre-) pricissione (for processione, by 17. AG XVI 395-477. 13. 1391: sec Sforza, Prop. V, parte 2a, pp. 396-408. Fagnano ia four or five miles oat of Lucca. 19. See Barbi, in the Raccolta D’ Ancona, 241-259. 20. Monaci, pp. 78-80. 21. However, this is a conventional canzone, written by a troubadour. 22. Monaci, pp. 195-198. 23. Monaci, pp. 198-200. 24. Monaci, pp. 356-357, — not very illuminating for our purpose. 25. Monaci, pp. 357-359. 26. AG XII, pp. 141-180. See note 16 of this §. Yet such forms as firire, vissica, etc., at once suggest a tendency to umlaut caused by the accented I. 1112 Wisconsin Academy of Sciences , Arts , and Letters. confusion of the prefix pre-), spidale, mistieri, intrare, in- trambi, infiato; but securo, mesura, pegione, defatti, defetto, rechiedere, genocchione, bechierara, nepote, pregione, rebello, reparo, segnore, de, se (pronoun), menuto, besogno, desfare, desmontare, ensaccare, ensegna, embasciata, prencipio, trebuto, trestizia, treonfo, el (obsolete, now er), e (plural of el) (and gherlanda, scherlatto and schirlatto). GROUP 3. — Siena. — The forms in E seem to predominate slightly, but this dialect presents a greater confusion of the two than any other.27 GROUP 4. — Arezzo : shows E very decidedly.28 Citth di Gastello: prefers E, according to Parodi.29 Cortona:30 seems to show preference for E. A A 38. Classic Latin A A> Vulgar Latin A> Italian A. — There was no diffence in the development of Classic Latin A and A. Except for cases of apheresis, which, for cause, are especially numerous, A is very stable. (a) EXAMPLES of popular words: acciaio, aiutare, amore, animale, arrivare, avere, cappello, eavallo, famiglia, fatica, fafc- toio, lamento, lavoro, maestro, maggiore, mattina., padella, 27. See Hirsch, ZRPh IX and X. Hirsch concludes that the Sienese slightly favors the E and Parodi agrees with him (Rom. XVIII). Hirsch’s article needs rearrangement. Besides the sources for Siena mentioned by Hirsch, op. cit., one may also compare Silvagni, in the Bull, della Society filol. rom., Ill, and De Bartholomaeis, in the Mi¬ scellanea di lett. del medio evo, fasc. 1 Ceruti published the Battaglia di Mont’ Aperto in Prop. VI, pt. 1, 27-62. 28. Guittone (see Monad, pp. 168-192), althoughvery full of the style of the Sicilian School, seems to be more or less trustworthy, especially in his prose; he inclines to E', but I is exceedingly common. Ristoro, on the other hand, is an excellent source (see Monaci, pp. 362-368) hnd shows almost entirely E: el, dd, Restoro, en, re-(in composition), se (pronoun), etc., the exceptions are quite negligible. On the language of Guittone, see L. Rohrsheim, Beihefte zur ZRPh, XV, 1908. 29. Rom. XVIII, 617. I have not had access to Bianchi’s work. (II Dialetto di Citt& di Castello, 1888). 30. See Mazzoni, Prop. 2a ser., II & III. Cortona is in the province of Arezzo and the document concerned contains “Laudi del secolo 13°;’* however, it contains plenty of I’s and is quite learned. As one pro¬ ceeds into Umbria, E is the favorite (cf. the works of Jacopone da Todi); it is. therefore, quite embarrassing to find the Valdichiana — running S. E. between Siena and Arezzo towards Umbria — showing to-day, according to Petrocchi, such forms as sirvire, sivero, sintuto, trippie (for treppie), virsiera (for (av)versiera), vinire, vinuto! Schlatter — The Development of the Vowel. 1113 padule, parete, paura, pazienza, ragione, salassare, salute, sgabello, trattare. (b) EXAMPLES of learned words: ambascia, ambustione, anargiri, argemone, atellana, cattolico, clandestine, faccenda, faco-lta, favisse, flagello, frassinella, rangifero, scafandro, tra- pezio, valeriana. 39. Vowel Assimilation. — (a) A — I to I — I: sigrino, for sagrino;1 grimigna, for gramigna (at Pisa: see Pieri, AGr XII 144). (b) A — E to E — E : bestemmia, from ;2 chete- cunieno, for catecumeno (influence of cheto?) ; ellegrare (Guitr tone,) from ellegro, for allegro. Possibly assimilation and then further development of E to I : schiccherare, for squae- cherare.3 (c) A— -O to 0 — 0: notomia, for natomia, aphetic for ana- tomia; ottone, from *lattone- ; osogna (Sienese), for asogna;4 olocco (Lucchese), for alocco.5 Possibly assimilation and then further development (see §61 (d)): usoliere.9 40. Vowel Dissimilation. — A-A to E-A: Setanasso, for Satanasso; segace (14th century), for sagace.1 §39. Note 1. Turkish zagrl, Persian s&gar!. 2. Cf. M.-L., Ital. Gram., §130. “bestemmia mit e statt i under dem Einfluss des betonten e”; that is: blasfemia, biastemmia, bistemmia, bestemmia. 3. See Caix, Studi, No. 528. 4. See ZRPh IX 522. The Florentine form is sugna, aphetic (see §44 (a)). 6. The Florentine form is locco, loccaione; see §44 (b). 6. r=“Legacciolo”; according to Caix, Studi, No. 168: sadisfare, then by intrusion of so- (SUB), sodisfare and, by being misunderstood, soddisfare (sub-dis-fare'). 2. Latin AD sometimes entered by confusion into words, also, as shown at the end of this note. — Latin AD in composition regularly developed in two ways: (1) before consonants, the D assimilated to the following consonant, and (2) before vowels, AD remained un¬ changed. By the development of AD to an Italian preposition a, A was popularly added to many words commencing with a vowel and also to some words commencing with a consonant. This last case may have any one of three causes: (1) confusion with forms which have AD-vowol, (2) intrusion of dialectal forms wherein AD-conson- ant did not produce geminated consonants, or (3), in some cases, fail¬ ure to express the geminated consonants orthographically. Examples of these four types are as follows: (a) AD before consonants with D assimilated: abbassare, accorrere, addirizzare, afferrare, etc. (very numerous); (b) AD before vowels: adagiare, aderire, adirarsi, adoc- chiare, adunare, etc.; (c) A before vowels (the modern examples are popular forms, the obsolete v^ere probably the same) : aempiere, aen- tro, aescare, aesercitare, a'irare, a'izzare, aocchiare, aoliato, aombrare, aonestare, aoperare, aorare', aorbare, aormare, aornamento, aovare (from ovo, — ‘fare ovale”), auggiare, augnare, aunghiare, aumettare, aumiliare, aunc.inare, ausare; (d) A before consonants: adimandare, adunque, amenare, aserbare, asbassare (apparently: exbassare> sbassare> asbassare), astizzare (from stizzo, tizzo), astipolare, asem- prare, astagnare, astanco, aschierare, ascondere (apparently not ab¬ scondere, but *excondere), aroncigliarsi (Lucca), aritorzolato, asnello, ascarano, ane’ghittoso (cf. §27 (a) and note 3 to same). Although this composition with AD is naturally very common with verbs, it seems to have spread to some extent to nouns also, as seen in some examples in (d). The prefix, taken in all its forms is exceedingly common and popular and often added to wmrds without change of meaning, -cf. abbenche, abbastare, abbadare, abbisognoso, accagionare, accalognare, accambiare, arradunare, arricordo, etc., etc., all very popular or even illiterate. §42. Note 1. The same perversion exists in English; see the Ox¬ ford Dictionary, under aaron. 2. In Pliny; see Harper’s Latin Dictionary, under asio. Schlatter — The Development of the Vowel. 1115 for sornione,3 through susurrare; oprire, for aprire, through coprire ;4 formacia, for f armacia, through forma, formare ( ?)5 ; lumiero, for lamiera, through lume;6 zompare, a cross¬ ing of zampare and zombare;7 lucertola, for lacertola, through luce; valampa (— ' ‘vampa subitanea”), a combination of vampa and lampa;8 poltroniere (=“a lazy fellow”), in the sense of paltoniere (=“a ragamuffin”), is merely a confusion of similar ideas and words ; gracidare, a combination of cro- citare and graoillare;9 gelsomino (Persian jasemin ), through gelso;10 treppello (13th century, — “piccola quantita di soldati comandati da. un officiale inferiore”), for drappello, through treppiare, treppicare, trepilare (there is also vowel assimila¬ tion) ; grevare, for gravare, as greve for grave, by analogy of leve;11 (s)tronfiare, through gonfiare;12 the curious form fenacbisticopo, for fantascopo, arose through fantastico and ?1S 43. Labial Influence. — Domasco, for damasco;1 romaiolo (and ramaiolo), from (ae) ramariolu-.2 3. From Saturnus? 4. Uprire at Siena. The same thing took place in French ouvrir, through couvrir; yet there is a following labial both in the Italian and in the French', which may have aided in this development. 5. In this case there is a preceding labial. 6. Because of its brightness and power of reflection (?) ; here, too, a labial is adjacent. 7. A following labial is also here. 8. Cf. the somewhat analogous crossings in English; yowl, from yell and howl; splatter, from splash and spatter. Salvioni, AG XVI 442 gives falampa at Lucca as “falo e vampa.” 9. M.-L., Ital. Gram., §140. 10. The form gensumino seems to be assimilation of the 1 to the nasals in the latter part of the word. 11. A Vulgar Latin change, -Grandgent, Introd. to Vulg. Latin, §19'5 (4). 12. If the derivation is tra (ns) -inflare, as has been suggested, one would expect tranfiare; in Siena, there is the form trenfiare, by ana¬ logy of enflare. Gonfiare is derived from conflare. 13. For gettare, gittare, see §20 (a) ; the etymon seems to be *jectare, but se*e Cornu, Rom. VII 354, Sturzinger-, ALL VII 450. Another ana¬ logical form, which does not, however, disturb the regular development of A, is calamandrea (and calamandrina), a plant, =“camedrio,” from Xa/WSpvq. The original form seems to have been contaminated by such words as calab&, calamina (=“giallamina”), calamo, calama.gna, ealandra. §43. Note 1. From Aa/maa-Kog- but Arabic Dimashq. 2. Other possible labializations are mentioned in §42. Pier!, AG XII 113, records also Gromigna, from gramineu-, = “monte prCsso Lucca”. 1116 Wisconsin Academy of Sciences , Arts, and Letters. 44. Apiieresis. — These cases are many and will be grouped as follows: (a) feminine nouns, (b) masculine nouns, and adjectives, (c) verbs, (d) other words. (a) Bacoeca, for albicocca;1 badessa, badia, etc., from abba- tissa, etc.; bistarda from avis-tarda;2 3 bottega, from It bozzima, from diro^ixaf gaggia, from cUa/a a; gazza;4 go- mena;5 6 guglia, for obsolete aguglia, from * acucula ; labandina, for alabandina (a precious stone, from alabandina (scilicet gemma), from Alabanda, a city of Caria) ; labarda, from ala- bard a (whatever the form of the etymon, the Italian presup¬ poses alabarda, -cf. French hallebarde) ; Lamagna, for Ala- magna (and Magna, a double apheresis) ; lena, from obsolete alena; lodola, from alauda; mandorla, mandola, from dfJLvySaXr], dfxvySaXa; 8 manza, from amantia; marena (=“bibita fatta con siroppo di ciliege amarasche”) and marasco (and mara¬ schino), from amarus, with Romance endings; mirazione, for ammirazione; mista, for amista; morchia (—Tultimia feccia delPolio”), from *amurcula la bruotono, and finally change in gender. 11. See Caix, Studi, No. 227; cf. §61 (c). This word also means “rap- presentazione o farsa popolare”, from the custom of singing May songs and fastening a branch to the sweetheart’s door. 12. The forms alambico, alembicco, allimbicco, elembico, limbiccare, et sim., also occur; for the derivation, see the Oxford Dictionary, under alembic: “French alambic, adapted (ultimately) from Arab . al- anblq . Aphetized as early as the fifteenth century to lembeck, limbeck; full form scarcely appears again until the seventeenth cen¬ tury.” 13. See Ducange under alucus and alucari. 14. Caix, Studi, No. 152. 15. The noun regularly has the vowel, arancia; narancia Is also found. From Sandskrit nagaranga. 16. The E in re’matico is due to a confusion with the prefix re-, ri-, or perhaps the word was confused with reumatico, which, in the 13th century was sometimes reduced to rematico. 1118 Wisconsin Academy of Sciences, Arts, and Letters. astrologo; stronomo, for astronomo17 ; veggio (— “scaldino”)18. (c) Bergare, for albergare, from the form abbergare, where¬ in the LB has assimilated to BB (cf. §44 (a), note 1) ; cusare (in the Tavola Ritonda and elsewhere), for accusare; parte- nere, for appartenere ; sassinare, for assassinare (sasso may have had some influence) ; scoltare, for ascoltare (unless it is a confusion of prefix, — EX- for supposed AD-) ; scondere, lor ascondere ; uto, for auto, for avuto. (d) Senza (and sanza), if derived from absentia; sai, in the expression “so sai,” for “so assai”19. 45. Arbitrary Apheresis. — These cases are largely proper names, of which only a few are mentioned here. Meo, Mea, for Bartolommeo, -a; Tonio, Togno, for Antonio; Lena, for Maddalena ; Cecco, for Francesco ; etc., etc. ; ’gnamo, for andiamo; teste, testeso, if from ante -ist’ -ipsu-, as Korting 17. Also starlomaco, storlomia, istorlomia. The stages were probably as follows: astronomu(s), astronomo, stronomo (by apheresis or con¬ fusion with the resultant of the prefix EX- and other words commenc¬ ing with S-impura). stronomaco (by analogy of such words as mo- naco, indaco, calonaco, mantaco, sindaco, cronaca and also astrolago, prolago, folaga)., stornomaco (by metathe'sis of the R), storlomaco and storlomia (by dissimilation of N-M, cf. Girolamo) ; the form star* lomaco was produced similarly through starnomaco, from storno maco (O to A, by influence of the following R) ; the form istorlomia, after aphersis, has added a prosthetic I, by analogy of other words commencing with S-impura. 18. From *lapideu-, according to Guarnerio, Rom. XX 67 remark; laeg- gio is also found. But cf. Canello. AG III 386, Caix, Studi, No. 653, W. Meyer, ZRPh VIII 216. 19. Sai here is doubtless, from the usual ad-satis, and not merely satis. Nappo (— “mesciacqua d’argento o sim.”), from Germanic hnapp, later napf, presents nappo and anappo; the latter form seems to con¬ tinue in its initial A the German aspirate, the former neglects it. Abada (=3“femmina del rinoceronte”) has also the form bada, but the etymology is uncertain; see the Oxford Dictionary, under abada. Fogazza.ro (Piccolo Mondo Antico) uses the form (dialectally) giu- tarlo (for aiutarlo), although the preposition a precedes the expres¬ sion. Apheresis in which the vowel is undisturbed appears in aberin- to, for laberinto (cf. “6 un aberinto”); the form arbrinto also occurs; likewise, in the resultants of labrusca (sc. vltis; see Grober ALL III 274), averustio (at Pistoia), abrostine, abrostino (also abrosco, abros- tolo, ambrostolo, averusto, labrostino, lambrusco, raveTuschio, rave- rusto, — see Caix, Studi, No. 69); likewise in avornello, from laburnu-. The form appamondo, for mappamondo, is curious; if a form nap- pamondo could be found, then un nappamondo might easily have pro¬ duced un appamondo, — perhaps even un mappamondo may have assim¬ ilated to un nappamondo1 (cf. French nesple, natte, nappe, Italian nic- chio (from nvriXoS and juvr(i)\oS (?) ). — M.-L., Ital. Gram, (the Italian translation by Bartoli and Braun), p. 27, bottom). Schlatter — The Development of the Towel. 1119 claims; such exclamations as deddina (cf. a fe di Bio, fedde- dio, fediddio, affedibacco, affe dell ’oca, afieddieci, affeddedue, et sim.). 46. Agglutination. — -These cases usually arise from the passage of the final A of the definite or indefinite feminine article by confusion to the following noun: aasma, for asma (unless the speaker had the idea of imitating the difficulty of breathing experienced by the patient) ; Acchinea, for Chinea ; amagione, for magione; amandolino, for mandoline (through the form amandola), for mandola1 ; amarca, for marca; amor- tina, for mortina (“mortella,” fa’lena, a reduction of second¬ ary AI, -see §85), folena and fulena (through *fau(i)llena)3; Fetonte,3 from Phaetonte-, 4>ae'0wj/; Laumedonte, for Laome- donte; so Maumettista (Machiavelli), for Maomettista (Medieval Latin Mahometus, Mahumetus, Machumetus) ; so faumele (and favomele, =“favo* di miele,” “honey-comb”), from favus mellis4. The etymon West Indian or South American mahagoni (English mahogany, -also written in Eng¬ lish mohogeney in 167:1'; Linnaeus mahagoni) is uncertain; the Italian forms are mogano, magogano, mogogano, mogogon, — all modern. 48. Epenthesis. — Of A: in calabrone (=“sorta di ves- pone”), for *clabrone (not found in Petrocchi), from crabrone (Bembo), from crabrone- (Virgil, et al., ==“homet.”):1. 49. Influence of a Following E. — There are a few cases where A before E has weakened to E1. Smeraldo, from sma- ragdu-; cherovana, for caravana2; seracino, for saracino; guemire, guernitura, guernizione, sguemire, etc., for guarnire, etc., from *warn j an : guerire, etc., for guarire, from warjan; mercare (in the Montagna pistoiese), for marcare; ferale (=“fanale”), probably from <£dpo?; gerrettiera, for giarrettiera, from French jarretiere; gheretto (peasant and illiterate), for garetto (cf. French jarret) ; gherofano (peasant), for garo- 3. Cf. M.-L., Gram. d. L. R., II, §451: “-enus, -ena .... c’est & peine si -enus, -ena pent etre considere comme un suffixe ... On n’en est que plus surpris de trouver, en roman, quelques forme's nou- velles: . en toscan, folena (sans doute de favilla . . . ).” Palena, fo-, and fu- are all modern; see §78. For the single L, cf. colni, bulicare, puledro, balestra. Favalena is also found, — assimila¬ tion of vowels. On these words, see Caix, Studi, No. 323, and Flechia, AG II 341. Falena (“pesce”) is, of course, from <£d Xaau; — cf. Latin balaena. Fetonte, mispronunciation of Latin se? 4. Favomele (obsolete), remained for a time, by influence of favo, which has the same meaning and is still a modern word. §48. Note 1. According to M.-L., Ital. Gram., §145, epenthesis of A exists also in palanca, for planca; but the word seems to come from palanga, for phalanga (cf. French palan(gue), and see Grbber, ALL IV 426. From planca, there is the Italian plancia, a French borrow¬ ing, which is an obsolete military term, and in Piedmont, pianca. See also Caix, Studi, p. 183. §49. Note 1. This development is common in other unaccented posi¬ tions, — see M.-L., Ital. Gram., §§119, 129. 2. The O in cherovana, because of the labial V, — Persian karwan, Med. Latin carvana, caravanna, caravenna. Schlatter — The Development of the Vowel. 1121 fano3; ermellino, for armellino, from OHGerm. harmo, — cf. French hermeline; ferrana, from farragine- (farraggine also exists, — cf. Spanish herren) ; cerbottana (=blow-gun or reed”), from Arabic zarbatana (cf. French sarbacane, Spanish zarbatana, cerbatana, cebratana, — ciorbottana is in Cellini) ; sermento, for sarmento4. 50. AL to AU. — Development of AIL to AU takes place in auterrare, for alter ar (si) ; antezza (in Guittone), for altezza; antare (in Buti’s Comento and in the Bandi Lucch.), for altare • antrui and aultrui (in Guittone, — a combination of both spellings), — also under the accent, autro and aultro. This phenomenon seems to be connected with that of AU to AL, — see §82. 51. Foreign Words. — Overtura (French ouverture) ; frere (Fatti di Cesari) and friere (Tesoretto, — French frere) ; dom(m)aggio (French dommage) ; bodriere (and brodiere, by shift of It, and budriere at Florence, ■ — French baudrier1) ; busnaga and bisnaga (Spanish biznaga)2; tronvai (illiterate and peasant), for tranvai (English tramway)3; bedeguar ““spina bianca,” — from French)4; ciajera (Old French chaiere, from cathedra)5; oboe, oboe, and uboe (French haut- bois) ; merino (Spanish merinos, from maiorinus ?); someria ( from: F rench ? ) 6 7 ; ciaramella, ceramella ( F bench ? ) 7 ; clove tta 3. See §47. 4. Perhaps gherminella (=“inganno”) also belongs here, — see Calx, Studi, No. 336. Cherovana perhaps developed as follows: caravana, cheravana, cherevana (assimilation of vowels), cherovana (O through the V labial). Cerbottana, then, will have had a similar history, and ciorbottana would owe its first O to assimilation to the second. The words of German origin might owe their double forms in somd cases to doublets in German, one with the umlaut and the other without. Fieri, AG XII, 143, records Bernabe at Pisa. Berlina (=“gogna”) also is a case,, if derived from barellina, from bara, as Canello thought, — AG III 336. §51. Note 1. OHGerm. bald (e) rich; see Zaccaria, under budriere. 2. Pastinaca is the literary word; see Caix, Studi, No. 217. 3. This tronvai, unless the O is merely an obscure pronunciation, might have been affected by the analogy of trono, = “tono, fulmine, forza”, used in the 14th century and still among the peasants. 4. See the Oxford Dictionary, under bedeguar, — ultimately Persian badawar. 5. Cf. Canello, AG III 385. 6. See Canello, AG III 310; Grober, ALL V 456; Ronsch, ZRPh III 103. 7. See Ascoli, AG I 73, note 1. 1122 Wisconsin Academy of Sciences, Arts, and Letters. (in Sacchetti ; from OHGerm. kawa, through Old French choete, modern chouette), now reduced to civetta, — see §85. 52. Miscellaneous. — Ainino (“carta ainina” in Jacopone, ““eartapecora”), from agnlnu-, is a dialectal development (cf. the development of -agine- to -aina)1. For gennaio, see M. -L., Ital. Gram., §130, and Grober ALL III 142; the form gianuario is learned. Gesmino, from Persian jasemin, is per¬ haps the same case as gennaio. The forms- aitale and aiqquanto suggest at once Provencal, but the second is a peasant word, so that perhaps they are both dialectal developments of the same nature as the Provengal, -cf. also the northern form maitino, for mattino2. Armoraccio, for ramolaecio, is a shift of letters due to the R (and harmony of R-L to R-R), -cf. § 24, note 4. Trebuco is probably from the French, -cf. trehuchet, same meaning ; trahucco arose by the analogy of traboccare. Emiro, from Arabic amir, perhaps goes back to French also, -cf. Eng¬ lish emir, ameer, and admiral. Taupino, for tapino (from ra7T€tvos), may have been produced by confusion with the cases mentioned in §§72 and 67 end, — as for example, cano- scere and caunoscere were current, so tapino and taupino3. The double forms rabarbaro, reubarbaro, and rapontico, reupontico, have double etyma in ra- and reu-. Ilzamento (== alzamento), used by Ser Zucchero Bencivenni in his “Esposizione del Pater Roster e delPAve Maria” and registered by Petrocehi and Searabelli, is perhaps an error? Raugunare (Tavola Ritonda) is apparently a mixture of ragunare and raunare.4 O 5 LT IT 53. Classic Latin O O U> Vulgab Latin O (close or . closing) . 54. Classic Latin U> Vulgab Latin U (close). §52. Note 1. M.-L,., Gram. d. L. R., I, §295. 2. Cf. Bianchi, Dial, di CittS, di Castello, 1888, p. 32, remark. 3. Cf. Wiese, Altitalienisches Elementarbuch, §42 (2)? “Taupini” in an old Pisa-Lucca codex — see Barbi, in the Raccolta D’ Ancona p. 244, “taupinella . . . gente” at Cortona, in tbe province of Arezzo in an old document, — see Mazzoni, Prop. 2a ser., II, III. 4. See §83. Schlatter — The Development of the Vowel . 1123 55. The development of O O U U is much more complicated than that of E I, etc. At first appearance, these vowels seems to produce most erratically : O in some words, IT in others, and O or U indifferently in still others. The following, however, seem to he the laws of development: 56. Viulgar Latin 0 (< 5 o u) produced (1) normally O in Florence and in modern Italian; (2) U regularly in the fol¬ lowing cases, (a) when the next syllable contained an accented I, (b) when it contained an unaccepted I, (c) when the second syllable began with a palatalized consonant, and (d) when the second syllable began with voiced S; (3) U at least in many other cases among the illiterate and the peasants ; (4) 0 on U by contamination of various kinds (se© below). 57. Latin U produced Italian U, but here, too, there are many perversions of various cause1. 58. Examples of the Regular Development to G: bot- tega, cocolla, cocomero, cocuzza, colore, coltello, the preposition con, derivatives of th© prefix CUM- (comandare, compagno, comparire, comune, condurre, confuso, oonoscerei, consegna, contratto, convenire, cospetto, costume), conocchia1, contadino, derivatives of the prefix ECCU- (colui, costui, cotale, cotanto, etc.), dolore, formaggio, Giovanni, lo, lontano, momento, mo- nello, non, derivatives of the prefix OB- (obbedire, offesa, op- porre, osservare, ossesso, etc.), odore, onore, oscuro, polenda, derivatives of the prefix PRO- (profondo, promettere, prose- guire, etc.), sor (from seniore-, in such expressions as Sor Pas- quale), sorpendere, sorsaltare, spontaneo, derivatives of the prefix SUB- (sobbollire, sobborgo, sopportare, sospetto, so- stanza, sottendere, sotterrare (from sottoterrare), sottrarre, sowertire, etc.), tormento, toscano, etc. 59. The following are examples of the same, but the de¬ velopment might have been aided by allied or analogous forms, as indicated in the parentheses, and some are literary words: boccone, etc. (bocca), cortese (corte), crollare (crollo, etc.), 557. Note 1. See Introduction, §8. §58. Note l. Prom *colucula, colus; canocchia is used by Sacchettl, Lor. Med., and is the popular form to-day. See 567. 1124 Wisconsin Academy of Sciences , Arts , and Letters. dottore (dotto, literary), fondua (fondere), forchetta (forca), giocare (giuoco, etc.), giovare (giovo), giovenca (literary), monastero (literary?), morale (literary), orsacehio (orso), potere (puo, posso, etc.), provare (provo, etc.), robusto (liter¬ ary), rompeva, etc. (rompere), soffocare (soffoco), sorella (suora), volentieri, vorro, etc. (voglio, vuole, etc.), etc. 60. Perversions: (a) Exceptions due to analogous or al¬ lied forms: buttare (butto, etc.), fungaccio (fungo), fuocato (fuoeo), fuoruscito (fuori), lungaggine (lungo). (b) Ex¬ ceptions due to other causes: cuculo, euccu, cucuzza, appar¬ ently owing to a tendency to harmony of syllables, superbo probably literary, budello, analogy of budino or perhaps it is not Florentine, cuccagna, perhaps too recent to suffer the devel¬ opment, urlare, perhaps because of a vowel change in Latin, — French hurler would point to urlare obriaco, by labialization (see §29 (a)), then ubriaco and ubbriaco. Rustico di Filippi has sumigliato. 7. Usignolo, rusignolo, also belong here; see under (b). 1126 Wisconsin Academy of Sciences, Arts, and Letters. 62. Illiterate Development to U. The following words described by Petrocchi as “volgare”, “del contado”, and “ter- mine delle montagne” seem to indicate a much more general tendency of U among the lower classes: cucchieri (cocchiere), culiseo (colosseo), cultello, cultivare, Fullonica, (Follonica), mumento, prufessore, prumessa, prumettere, pruscenico (pro- scenic), prutesta, prutezione, pulenda, pu(v)esia, pu(v)eta, rubusto, rugantino, scultellarsi, spuntaneo, sputestare (spote- 6tare), subborgo, ubbliare, ubbligare and ubbrigare, udore, uf- fesa, unore, uperazione, upinione, urigine, zulfanello. 63. Double Forms: — The forms showing O and U are very numerous in the old language. In the modern, one form is usually favored. In many cases the confusion would very readily arise from accent-shifting in the various forms of the same or related words, — for example, pulvischio would 9eem to be the regular form and poivischio perverted by polvere. Forms accented on the first syllable have sometimes perverted the other forms and sometimes the reverse has happened. Be¬ sides these causes, literary influence and dialect intrusion are -ever present to add to the confusion. A; few examples of the many will suffice to show these types : boccellato is Lucchese, buccellato is Florentine ; boffetto is the regular form, buffetto is influenced by buffo; bolicame, influenced by bolle, etc., bulicame, regular and in¬ fluenced by forms buglire, bugliolo, etc. ; bolina, dialectic, bulina, regular1; bollire, .influence of forms accented on the 0, bullire, obsolete, is regular; bollente, modern, influence of forms accented on the 0, buglien- te, regular in Passavanti : borrone, burrone,2 both modern, the latter preferred (why?); bottega is Florentine, buttiga and bottiga are Old Sienese; -cocomero is the regular modern form, cucumero is used by San- nazaro ; ^soprire, influenced by copro, coprono, etc., cuprire is Sienese; §63. Note 1. From Dutch boelijn, a bowline. 2. Probably from Greek fioQpot; budrione at Modena. Schlatter — The Development of the Vowel . 1127 coratella, regular modern, curatella is the illiterate form and curata is used by Sacchetti probably by the same influ¬ ence3; corriere, irregular through correre, currieri is of the Mom tale; cosi, irregular by analogy with colui, cotanto, costa, cola etc., cusi in the Chron. Pis., 46, and living in the Montagna, pistoiese ; crostaceo, regular literary, crustaceo, irregular more literary ; . focile, obsolete and irregular through the influence of fuoco, fucile is modern and regular ; fondare, modern and regular, fundare in Machiavelli et al., literary ( ?) ; follone, in Giov. Yillani, fullone, both obsolete; forbondo, in the Centiloquio, furore, literary, analogy with furia ; giocare, regular modern, giucare, giuchevole, giucolare, in the old writers passim, may be a reduction of giuocare, etc., or a trace of the development mentioned in §62 ; monastero, modern and regular, munastero in Fr. da Barberino ; molino, perhaps semi-literary, mulino is the commioner and more popular form, both used to-day ; obbedire and ubbidire are both regular, the latter more popular, the former maintained also by analogy to the other deriva¬ tives of OB- (observe that there is no obbidire or ubbedire) occidere, common everywhere in the old language, formerly re¬ tained by analogy to the compounds of OB-, uccidere is the regular modern form; officiate, more literary than ufficiale ; oliva, semi-literary, uliva, the popular form; orsacchio, regular and also preserved by orso, ursacichio (obso¬ lete) is probably dialectic from a region where urso is used; porcellino, irregular through analogy with porco, purcellino is Aretine ; robicondo (obsolete), dialectic, rubicondo, mod. literary, rubi- 3. Cf. French cur6e. 1128 Wisconsin Academy of Sciences , Arts , and Letters. cante, rubicondare in Berni and the Ottimo Comento ; rollio, rullio, the latter the modem form* * 3 4 ; rogiada, in Boiardo, dialectic, rugiada, regular and modern; sogattolo, sogatto, sovatto, and sugatto5; soperbo, 13th century and living among the peasants, superbo, literary ; sostanza, sopportare, sobbolire, soffocare, etc., etc., are regular Florentine forms, but sustanza (13-16 centuries) ,suwer- tire (14), suttrarre (,13), suppprtare (Bern, bo), subbollire (Caro and Segneri di FRettuno), suffocare (Guicciardini), etc., etc., are numerous in the old language and may be dialectic, literary, or a trace of the illit. development men* tioned in §62. 64. Examples of the Development of Vulgar Latin IJ> Italian U : — These are taken at random and include lit¬ erary words, which have the same development: brucare, bru- ■eiare, bruire1, brunire, brusio, bubbone, butirro2, crudele, cu- rioso, custode, durare, frugale, frullana, frullare3, fuliggine, funerale, funesto, funzionare, fustaio, futilita, future, giudi- care, giumento, giurare, giustizia, lucignolo, ludibrio, luminel- lo, lunedi, lussuria, mucino, munerare, municipio, munire, museo, mustella, mutande, nutrire, plurale, prudente, prurito, puberta, pulcella, puleggio, pungiglione, punire, pupivori, pur- gare, purulento, puttana, rumore, rurale, struggeva, etc.4, stru- mento, su, truante, tubercolo, tutore, uligine,. umano, umore, uncino, unguento, unione, unire, upiglio,5 usare, ustilaggine, usurpare®. 4. Perhaps neither rollio nor rullio are Italian. 5. Diez: suhactn-; M.-L. accepts this etymology; why not a deriva¬ tive of soga? §64. Note 1. For the original vowel cf. Fr. bruire. • 2. Burro, the usual modern word, is from the French. 3. From *fluctulare. 4. From *destrugo. 5. From *ulpiculu-, diminutive of ulpicum (short initial u), used by 'Cato; see Grober, ALB VI 145 and D’Ovidio AG XIII 423. 6. As a matter of fact, it is tempting to gToup these words with the development of 5 il. If one were to remove the literary examples, those influenced by an allied or analogous form, and those conforming to the regular development of (as upiglio, mucino, etc.), there would be few exceptions left to explain. Cf. Grandgent, Introd. to "Vulg. Lat., §228. Schlatter — The Development of the Towel . 1129 05. Double Forms. — (a) The perversions in the following seem to have existed in Vulgar Latin: lordura, from lordo, from *luridu-, Classic lu, cf. French lourd; nodrire (now lit¬ erary and poetic, formerly very common), from *nutrire, cf. French nourrir, Classic nu-; ontuoso, obsolete for untuoso, from *unctuosu-, Classic unc-, cf. French oindre; orina and urina, from *urina and Classic u-, cf. Old French orina and Spanish orina; ortica modern, and urtica, obsolete, from *ur- tica and Classic ur-, cf. French ortie1; poleggio and puleggio, from *puleju- and Classic pu- ; polmonare and pulmonare, from *pul- and Classic pul-, cf French poumon; pontare (Sac- chetti et al.) and puntare, from *punctare, Classic punc-, cf. French point; scodella, modern, and scudella (living among the peasants and in the mountains), from *scutella, Classic scu-. (b) Some other preversions are dialectic; osanza, omore are found in Old Sienese; prodenza, omano, otilita in Alber- tano; giomente (for giumento) in Guittone; sprodente in the Valdichiana. (c) Other cases are dialectic or of doubtful cause: bolimia and bulimia (both literary), costodia (Lasca), lossuria (obsolete), moricciolo (Fior. di S’. Franc.), oncino (popular for uncino), osura (obsolete), polzella (for pulcella), rogumare (for ruminare), romor© (still used), scoiattolo, stro- mento (and stormento, sturmento)2. 66. Vowel Assimilation. — Tedesco, from Gothic thiudi- sko (todesco in Filelfo) ; micina (less comomnly micino, — whence, working backwards, also micio), if from Latin *mu- sio; silimato, for solimato, from sublimatu-; pricissione, an il- lit. and peasant word for processione1 ; filiggine, from fuli- gine-2; squittinio, from sc(r)utiniu-; stipidire, for stupidire; uguanno (a peasant word), from hocqu(e)-annu-, “quest’ anno”3; avannotto, “tutti i pesci di fiume nati di fresco,” is 565. Note 1. In any case the Florentine form would he urtica. 2. See Wiese, Altitalienisches Elementarhuch, §59, 3. §66. Note 1. Unless this is a case of confusion of prefix, pre- for pro-, in which case the development was precessione> pricessione> pricis¬ sione. Pricissionando, mod. Florentine, in Prop. V (part 1), p. 151-2. 2. Fuliggine is also in use. 3. M.-L., Ital. Gram. (Bartoli and Braun’s translation), §66: “1 ’u- d come 1’ombra proiettata dal gu della sillaba seguente.” There is also an aphetic form guanno, and a form unguanno with an epenthetic n, and uguannoto. Cf. the similar development of eguale to uguale. 1130 Wisconsin Academy of Sciences, Arts, and Letters. the same word, with assimilation to the a4*; saldo, etc., from solidu-, seem to have arisen in forms of the verb wher© the first syllable was unaccented, — said are, saldavano, etc.5 67. Vowel Dissimilation. — The dissimilation takes place between the same vowels and sometimes between similar vow¬ els, O and U : serocchia and sirocchia, from sororcula1 ; velumo and vilume, for volume; vilucchio and viluppo; bifonchiare (and sbufonchiare), for bofonchiare2 ; ligostra (and aligusta and arigusta), from locusta; inorare, for onorare, — the prefix in- probably assisted in this change ; bifolco, for bofolco, from bubulcu-3 4; Ridolfo (Dante, Purg. VII 94, — Scarabelli men¬ tions four forms: Ro-, Ru-, Ra-, and Ri-) ; tigurio (14th cen¬ tury), for tugurio; timulto (14th century), for tumulto; ri- more (Fr. da Barberino and a modern peasant form), for ro- more, rumore. A curious change, apparently of a dissimila- tive nature, took place in the following (it is noticeable that several of these cases commence with initial ca-) : canoscere (Pier delle Vigne, Guitt., et al., but living in the Montagna pist.), for conoscere; canocchia, for conocchia, from colucula, from colus; calostra (at Pistoia), for obsolete colostra, “the first milk after calving”; ramanziere, etc. (Passavanti, Ta- vola Ritonda) ; cavelle (in the old writers), for covelle (from ? quod vellis), both obsolete. Change from O to A before R, possibly also dissimilative, took place in arlogio, for orologio, argoglianza, argoglio, etc. for orgoglio, etc., tartaruga, evi¬ dently a reduplication (cf. Sienese tartuca)4. 4. In this case, uguannoto (see note 3) apparently produced a form aguannotto, whence avannotto, as avale from aguale for eguale. Caix mentions the Emilian form anguanin, “vitello d’un anno”, — cf. Eng¬ lish “yearling”. See Caix, Studi, No. 4. 5. Cravatta is not an assimilated form of crovatta; the etymon Is double: Croate, Cravate. For other cases of assimilation, some more doubtful, see Caix Studi, pp. 178-185. In an old text from Pisa-Lucca, there is peverta. and Actaviano, — see Barbi, in the Raccolta D’Ancona. §67. Note 1. This weakening is old, — see Grandgent, Introd. to V. L. §229 (6). 2. Bufo, in Virgil, — these all seem to contain the same root which is preserved in English puff. 3. See M.-Li., Ital. Gram.,' §11. 4. Derivatives of tortus — see Grober, ALL VI 128. Aricalco is also found for oricalco, where dissimilation cannot be alleged; the change here seems due either to the R or to assimilation of the vowels of the two syllables bearing the primary and secondary accents. Schlatter — The Development of the Towel . 1131 68. Confusion of Prefix. (a) Intrusion of Ad: aecupare (illit. and in the Montagna pist.), for occupare; addurare, for Latin obdurare; abrobrio, for obbrobrio; affogare, for Latin oflocare; assedio, for Latin obsediu-. (b) Intrusion of Prse- : preposito (Montalese), for pro- posito. (c) Intrusion of DE-: dimestico, for domestico. 69. Analogy. — Alicorno, confused with the form alifant© (for elefante; cf. §28), and liocorno, confused with lione, for unicorno; filucolo (a peasant term, “mulineilo di vento”), from folliculu-1; bonpresso, analogy of b(u)ono (cf. French beaupre) ; avvoltoio, from vulturiu-, analogy of avvolto, av- volgere; pedagra, for podagra, by analogy of p(i)ede; om- baco (at Lucca), evidently a crossing of opaco and ombra; ra- merino, from ros-niarinus, by analogy of ramo; maniglia, “handle”, a crossing of monile and mano ; manile, a crossing of monile and mano, likewise ; nunziale (modern popular, for nu- ziale), by analogy of nunziare; torraiolo and terraiolo are terms used of a certain species of pigeon, and, whether con¬ fusion or not, the former felt the influence of torre, the latter that of terra; frulletto, in the sense of “folletto”, by analogy of frullare; pulizione, for punizione, is perhaps a half humor¬ ous confusion with pulire; brunata, for brinata, by influence of brunire; sollalzare, = “alzare un poco”, and soalzare, for “sollazzare”, are confusions of the forms and meanings of the resultants of subaltiare and solatium; iscurita after apheresis, and other similar words received their initial I by the analogy of the resultant of EX-, etc.,- cf. Prov. escur and see §16 ; suci- diarsi (modem illiterate for suicidiarsi) is perhaps a popular confusion with sucido, sudicio, or a regular reduction of UI to TJ, — see § 85. tO. Apheresis. — Xaturally apheresis is here most common in the case of masculine nouns; but there are several other cases, also. Spedale, for ospedale; riso, from oPv£a; lezzo, §69. Note'l. See Caix, Studi, No. 319. This is really metathesis of vowels under the influence of filare: folliculu-> fullicolo> filucolo. 1132 Wisconsin Academy of Sciences, Arts, and Letters . = “puzzo,” from *olidiu-; leandro, for oleandro; ragano (in the Montagna pistoiese), for uragano; regamo, from dptyavov; leto, letare (at Lucca, =asudicio di stereo”), from oletu-1; probbio (G. Villani), brobbrio, etc. (in the old writers passim), for Latin opprobriu-; scuro, for oscnro; cagione, from occa¬ sions- ; bacio, from *opaci(v)u-2 ; micidiale, from *homicidi- ale-; vunque (13th and 14th centuries), for ovunque; Noferi, for Onofrio3; Loferno (Boccaccio), for Oloferne; puppula, bubbula, from a diminutive of upupa; suzzacchera, “sorta d’acetosa”, for ossizzacchera, from oxysaccharu-, from 6£v and o-aKxapov. Apheresis of an arbitrary kind occurred in the following: tavia (peasant and mountain word), for tuttavia; mentre, for domentre (obsolete), from duminteri(m), through *dementre- ; in the numerous derivatives from /3o/x/?v£, -vkos, the silkwork, — bigherino (a kind of lace), bigattiera (“edi- fizio o luogo dove si allevano bachi da seta”), bighellone (“a loafer”), bigio, etc.4; in names like Beppe, from Giuseppe, Nen- cia, Tancia, Beca, from Domenica, Menico, from Domenico, Maso, from Tommaso, Fazio, from Bonifazio, Mizio, from Do¬ rn izio, Nanni, Vanni, from Giovanni, etc.; friscello (“spol- vero”), from furfuricellu-5 ; bellico (the usual modem word), from umbellicu-.6 71. Syncope. — This contraction is likely to occur between a mute and an B: sprone, from Old German sporon, passing through sporone, sperone, sprone; friscello, from (fur)furi- cellu-1; bricco, = “asino” and “becco”, from Latin bur(r)icu-; pretto, for puretto, and priccio (at Siena, -cf. “villan priccio”), from puriccio ; f rana, from voragine-2 ; cruna, if from corona3 ; §70. Note 1. See Caix, Studi, No. 377. 2. For P> B, cf. bottega, bubbula; for the disappearance of the V, cf. natio (nativu-), ratio (errativu-), etc.; there is a dialect form ovich. SeO AG II 2 seq. • 3. Noferi is used in the following expressions: “far il Noferi” = “fare il nesci”, “essere, restare come ser Noferi,” = “sul lastrico”. 4. For bigio, meaning a color, cf. vermiglio from verme-. On these words, cf. Caix, Studi, Nos. 11, 72, 201, Flechia AG II 39, Parodi, Rom. XXVII 223, Nigra AG XIV 280. 5. See Caix, Studi, No. 326. 6. Ombrico, from lombrico, is a case of apheresis of the consonant L, by confusion with the definite article. §71. Note 1. See §70, note 5. 2. Cf. M.-L., Ital. Gram., §193. 3. M.-L., Ital. Gram., §§11 and 143. Schlatter — The Development of the Vowel . 1133 crollare <*corrotulare. More or les3 arbitrary contraction took place in Dante, from Durante; sustrissimo (illiterate, or ironical, or jocular), for “illustrissimo” ; Gianni, for Gio¬ vanni ; and cutrettola, from coda (cauda) -trepida4. 72. 0>AU. — This is a development peculiar to the south and is not Tuscan ; it seems to be merely the reverse develop¬ ment of AU>0 (see §78) : caunoscere, auriente, aunorare, au- lente, aulore, audore, auccidere, ausignolo, etc. Eeturning north, AIJ seems to have given AL in some cases ; this is ap¬ parently a learned pronunciation: alcidere (whence ancidere, as arcipresso (see § 28), then alcipresso, then ancipresso1.) 73. Foreign- Words. — Belluardo, by analogy of bello, and baluardo, by vowel assimilation (from French boulevard, from German bollwerk) ; estudiantina (Spanish) ; damerino, dami- gella, etc., (French) ; mufti, muesino, muezzino (Arabic) ; burocrazia (French) ; durlindana (French) ; luterano (Martin Luther) ; buffe (French) ; blusetta (French) ; rosbilfe and ris- biffe (the latter illiterate and peasant, — from English) ; toe- letta, toelette, toilette, toletta, tuelette (French); burgravio; burgensatico ; burro (French, — the Italian word was butirro) ; brulotto, brulottiere (French brulot) ; dozzina (French) ; bol- dro, buldro, buldroghe, etc. (English) ; buristo (a peasant and Sienese term, according to Caix, Studi FTjo. 239, from Ger¬ man wurst; buzzurro (“svizzero che vien in Italia d’invemo a vender bruciate, polenda, eoc.”, a recent word from German putzer?) ; bustorho “gli eruditi alemanni”, from Buxstorf, the name of three of them; forgone, “moving-van”, frugone, “truck”, furgone, “tender (French fourgon) ; foriere, furiere (French founder) ; orangutan, urango, orangutano, etc. (a modern borrowing from Malay orang houtan) ; etc. 74. Miscellaneous Cases. — For ginepro, from Latin ju- niperu-, see M. -L., Ital. Gram., §130, — this seems to be merely a secondary reduction of giu- to gi-, — see §85. Classic Latin 4. Other forms are cuccutrettola, cutretta, scuccutrettola, scutretto- lare: on this dubious word, see Flechia, AG II 325, remark 2. §72. Note 1. See Caix, Studi, No. 1. F. G. Fumi, in the Miscellanea Caix-Canello, pp. 95-99, concerning Q> AU, AO, and A, considers them all to be a confusion of the various dialect forms. 1134 Wisconsin Academy of Sciences, Arts, and Letters. coagulum and its derivatives have produced coagularsi (liter¬ ary), quaglio (regular), and caglio (from forms with atonic initial syllable, like cagliare).1 75. Dialects1. — Pieri states in reference to the O-U devel¬ opment in Tuscany today: “ . Quanto a questo fe- nomeno, il dialetto toscano che oggi vi mostra una piu spiccata inclinazione e senza dubbio 1’aretino ; di poco minore, il fioren- tino e il pisano ; meno di tutti v’ inclina il lucchese”.2 A con¬ sultation of numerous documents does not throw a great deal of light on the subject3. The cases in which Florence has U have already been detailed (§§61, 62). The old language does not seem to differ from the modern, except in less fixity of forms, due to influences (Latin, dialect), which have now in a large degree lost their force. Prato shows the same results as Florence. In Group 2 of the Tuscan dialects, Pistoia to¬ day has, according to Petrocchi, furitano, muscino (for Flor¬ entine moscerino), rumicciare (and romiociare in the Mon¬ tagna) ; in the thirteenth century4 we find cusi and quite regu¬ larly u (from ubi) ; otherwise nothing remarkable. In Lucca: thirteenth century document5 : u (from ubi) ; in a document of 12686: u (from ubi), Currado (invariably, seven times) ; in a document of 13 3 0-1 3 8 47: ugnomo (for ogni nomo), pucella (from puellicella), muglieri, but occidro, etc. (beside u-), ro* §74. Note 1. Peculiar cases, in which the vowel of the initial syllable is not disturbed are the following, (a) prothesis of a consonant in lusanza, for usanza; lunicorno, for unicorno; lusuraio (modern illit¬ erate and peasant), for usuraio; limicare (at Arezzo, "pioviscolare”) and lamicare (at Pistoia, by some analogy?), according to Caix, Studi, no. 42 from *humicare; (b) shifts of various kinds in: nuledi (peasant), for lunedi; fornire, from frumjan (cf. French fournir; Pieri, AG XII, 156, give's the Pisan form frumiare) ; tromento, for tormento; drottina, for dottrina; Orlando, for Rolando; grolioso, gro- liare (and grolia; in the old language and modern illiterate and peas¬ ant), for glorioso, etc. §75. Note 1. This § is based on the arrangement and documents of §37, which should be consulted. 2. See AG XII, 115, note 2. 3. The writer has consulted a great many without being able to draw very satisfactory conclusions. Some of them are mentioned in §37„ which see. 4. Monaci, pp. 160-161, 194-195, — very little here. 5. Monaci, pp. 193-4. 6. Monaci, 327-328. 7. Bongi, Prop. 2a ser., Ill, parte la, pp. 75-134. Schlatter — The Development of the Vowel . 1135 fiana, etc. (commoner than ru-) romore; Pieri’s article8: cu- gnato, cuscensia, cuglione, ruvina (all of which would be ex- peoted in Florence), but coscino, oncino, popillo, polcino, offi¬ ciate, molina, and pulenta, muneta, curtello (for coltello), scu- della and piomaccio. Lucca to-day also shows foritano, in dis¬ tinction to Pisa’s furitano. Fagnano9, in the fourteenth cen¬ tury seems to incline to O; obedire, offendere, soportare, of- fitio (twice), officio (three times), offictio, officali (sic), but ufficio (once), and uscita. In a Pisa-Lucca document of about 130010: cocina, notrica, soperbia, torbato, but hubediscio, du- lente, uulentieri (and uo), cusi, cului, cutale. Pisa: in a document of 1279* 11: incuminzi, lunedi and lonedi ; in a docu¬ ment of 127912 : docato, Corrado; Pieri’s article13: cocire (and eucire), cosino, scottino (for scrutinio), notricare, oncino, rofi- ano, but prutesta, muneta, mumento, cuscienza, unore, udorato, curtello (for coltello), scudella, cutale, culoro, cusi, all mod¬ ern forms, and cugnato, cunsegnare, old forms. Group 3, Si¬ ena, according to Hirsch14 and Parodi15, seems to refer U, but there is even greater vacillation than between the devel¬ opment to I and E. According to Petrocchi, the following are modern Sienese: sgrullata (for crollata), cumune, cus- tume, furitano, cuprire, cuprime, pultrone (for poltrona), Currado. Group 4, Arezzo: in the old language16: sustantia, sublime (perhaps both learned), murrano (for morranno), sutile regularly, suggiugare, unguento, mulino, ubidiscie, uci- dere, suficiente, unor (for onore), u (from ubi, — regularly in Guittone, but Pistoro has o), but scodella (in Pistoro), obbri- are (from ^oblitare), mogliere (besides au and ao, for regu¬ lar O17. Cortona has obedientia, Ioseppo, suave, and mun- ditia; but this document is literary and therefore untrust- 8. AG XII, — see §37, note 16. 9. See §37, note 18. 10. See §37, note 19. 11. Monaci, pp. 356-7. 12. Monaci, pp. 357-9. 13. AG XII. 14. ZRPh IX. 15. Rom. XVIII. 16. For the documents, see §37. 17. See §72. 1136 Wisconsin Academy of Sciences, Arts, and Letters. worthy.18 The Valdichiana, according to the few examples given by Petroochi, shows U decidedly: spruvisto (for sprov- visto), vultelere (for voltolare), vulintieri, urivuolo (for ori- olo, orologio), but sprodente (for *sprudente, for imprudente) . AU 76. Classical Latin AU has a double development. — 1. Al¬ ready in Vulgar Latin, AU, if followed by an accented U in the next syllable, became A1; 2. in other cases, AU produced U in Florence and hence in the Italian language. 77. Examples: (a) Of development to A: ascolta, from auscultat, whence spreading to the other forms of the verb, wherein the form was not AIT-tJ, ascoltare; agosto (Sant’ Agostino, agustale) ; agurio, (agura, aiirio, sciagura, sciaura, etc.) ; (b) Of development to U: uccello (AL. — This seems to represent a clerical pronun¬ ciation of AU, a phenomenon lasting , some time1: algelli, (es)aldire (G. Cavalcanti, S. Girolamo, Lorenzo de’Miedici, et al.), aldire, alditore, aldace (Cellini), galdente, galdere, etc., laldare, fraldare, et sim., altore, altorita2. furthermore, by confusion, wre have aultentico, aultorita, lauldare, gauldere, auldace. 83. Miscellaneous. — Ciausire, ciausimento, come directly from Provencal, from German kausjan1. In agumentare, for aumentare, is present the effort to destroy the hiatus in au- (cf. ra gun a re, for raunare, from re-a(d)-unare),- augumentare is a mixture of both forms, like raugunare. Aurispiceo, auru- spicio, etc., are confusion of aruspice and auspice. Aunito, “svergognato,” is a Provengal form. Asbergo, for usbergo (in the Intelligenza), is apparently prosthesis of A from the fem¬ inine article2. Cavicoli, a plural substantive, architectural term, from Classic Latin cauliculus, diminutive of caulis, “stalk,” perhaps arose through analogy with cavicchio. Chiusura, etc., came from the forms accented chiudo,3 etc. Mussoni, for monsoni, is apparently a modern borrowing4. 84. — Dialects. — There is not sufficient material for obtain¬ ing satisfactory results concerning the development of Au. Classic Latin ATI-tJ, having given A-tJ already in Vulgar Latin, Tuscan, — and Italy in general, — shows A. In other cases, 2. See §30 end. and §45. §82. Note 1. See Caix, Origini, §71; M.-L., Ital. Gram, §§100 and 125. 2. For these and similar forms, see Caix, Origini, §68. §83. Note 1. See Zaccaria, p. 87. 2. There was a feminine form, — cf. §81. Cf. also M.-L., Ital. Gram., §138. 3. Although this Is the regular development of AU in forms not ac¬ cented on the first syllable, cludere was a Vulgar Latin form, — see Grandgent, Introd. to V. L., §211 (2). 4. The French form is mousson, according to D.-H.: “pour mon- 80n . . . du port, mongao . . . arab, mausim”. Schlatter — The Development of the Vowel . 1139 Florence shows TJ ; GROUPS1 2 and 3 seem to have inclined and still to incline to O : at Pisa, odire2 ; Pisa-Lucca3 : oderai, odrai; Siena4: odesti, odire, odeste, odito, odendo ; GROUP 4: Arezzo : in Guittone, gaudere, lauzore, andito, auzida (possibly all forms due to Provencal influence), o (from aut5 * *), oreglie; in Ristoro, audire, audito, laudare, but uccelli, udire, ucelare, and o (from aut8). SECONDARY DEVELOPMENTS. 85. Certain vowel combinations of secondary growth re¬ duced regularly in Florence and apparently more or less gen¬ erally in Tuscany to monophthongs. The only groups of im¬ portance are the following: descending combinations, ai> a, ei> e, oi> o, ui>u; ascending combinations, ia, ie, io, iu, all> i. Examples : OF AI> A: a’, for ai1; da’, for dai, from dagli; qua’, for quai; ta’, for tai (tali); atare, for ait are (both now obsolete, superseded by aiutare, which was preserved by the forms ac¬ cented aiuto, aiutano, etc.); ma, for mai, from magi-s2; ma’, for mali3; tranare, popular for trainare; balia, from bailia; sattiche, an exclamation (=“che e, che e?”), probably from sai tu che; guadagnare, from *waidanjan; 1 ’ancudine, for la incudine; l’anguinaia, for la inguinaia; and many similarly, both obsolete and modern, — e. g., l’ha’nventata, et sim. (in Fucini).4 §84. Note 1. See §§37 and 75. 2. Pieri, AG XII. 3. Barbi, in the Raccolta D’ Ancona. 4. Hirsch, ZRPh IX and X. 5. Or from *ot: cf. Provencal o. §85. Note 1. The process was of course, a’ E : meta from meita (medietate-) ; eta, from eitk (in the old language passim, from aevitate-5) ; reta (in the old language passim), from reita; se’ (from sex, in such expressions as se Volte, secento, semila, etc.) ; me’ (in the old language), for meglio ; me’ (in Varchi), for mezzo6; me’, from mei (mod¬ ern illit., for miei,- “i me’ figlioli”) ; ne’; de’; be’; que’ ; tre (from trei, probably developing when used in unaccented posi¬ tion, but then there is re, from rei7) ; e’ (0: vo’ (from voiIJ ; su’ (“su’primi tempi”) ; Guglielmo, for Gui- gliemlo; piu, for p-iui (in unaccented position, as in piui bello> piu hello) ; vu’ (for vui, peasant form for voi,- “Vu’sapessi !”9). OF IA> I: sciliva (from scialiva mezzo; 2. m£-yu> mSio> me’; — cf. this §, note 8. 7. According to Professor Grandgent, possibly from such expres¬ sions as re' Filippo, etc. 8. As mediu- produced a doublet (see this §, note 6), so hodie:- first, 6-d’e> oggi; secondly, o-ye> oi. 9. Ua, ue, uo also lose their final vowel when used prosthetically, at least colloquially; cf. the following examples from Fucini: della su’ moglie, nella su’ casa, la su’ bambina, la tu’ povera mamma, la su’ Giuditta, du’ franchi, du’ mesi, du’ ossi, du’ posti, su’ padre, al su* cane. 10. In D’Ancona e Bacci, Manuale della letteratura italiana, new Cd., 1903, Vol. 1, p. 104, there is an extract from Jacopone, contain¬ ing the word desciliato (from descialivato I : piviere; pitanza (for pietanza; Sacchetti uses piatan- za, common formerly) ; Fucini uses mi’ frequently for mie. IO>I: Firenze12; firini13; fi’, for liglio; i’ for io; kriscello (now by syncope friscello), if from floriscellu-14. IU>I: scipare (14tli-l7tb centuries), for sciupare (tke U of the modern form kept by the influence of tke forms accented sciupo, etc.)15; pimaccio (13tk-15tk centuries), for piumaccio; piviale (pieviale in Bocc., eitker a transition form or a con¬ tamination witk pieve), from pluviale; gilemme (Trattato delle segrete cose delle donne), for giulebbe; possibly also ginepro, from juniperu-16. 11. See Hirseh, ZRPh IX 522. Since cescheduno also occurs, per¬ haps this is the original vowel: quisque-et-unu-. 12. Fiorentino preserved its first 0 apparently by influence of the secondary accent. See M.-L., Ital. Gram., §157; cf. also §7 of the in¬ troduction to this investigation. 13. See Flechia, AG II 57 note 2; Parodi, Giorn. Stor. X 183. 14. But cf. §§70, 71. 15. The etymology is a little uncertain, — see Korting, No. 3481, and the articles there mentioned. Both sipare and supare existed in Latin. 16. But cf. M.-L., Ital Gram., § 130. Similar reductions are found scattered through Tuscany, both in the old and in the modern words; see Pieri, AG XII (at Pisa, Chimento, for Clemente, questo ’ncanto, da ’mbrogliare, una ’nfamita, lo ’ncenso, onferno, ombuto, ompiego, but also maitina, bailia, meita, voitare), Hirseh, ZRPh IX 523 (at Siena, chimare, for chiamare, picere for piacere), Barbi, in the Raccolfa D’An- cona Pisa-Lucca, eitade, aitade), Flechia, AG II 57-58, note 2 (Pimonte, for Piemonte), Parodi, Rom. XVIII 601 (Old Sienese, gidicare, gi- gnore, giramento, gistrare, all for giu-), Parodi, Giorn. Stor., X 183 (Giseppe, scighatoio, for asciugatoic) . Guittone uses vo’ as a pro¬ tonic pronoun. Many similar cases might be cited. For piviale, see Foerster, ZRPh VI 377. TRANSACTIONS OF THE • 'I ' ■ rj _ ■ ' ,, - WISCONSIN ACADEMY SCIENCES, ARTS, AND LETTERS VOL. XVII, PART II, NO. 5 MADISON,, WISCONSIN CONTENTS Page Species of Hypholoma in the Region of the Great Lakes (with Plates LXXI1 -LXXXIV) - - - - Edward T. Harper 1142 The Organization of the Colony in Certain Four-Celled Coenobic Algae. (With Plates LXXXV-XCL and Seven Figures) - - Gilbert Morgan Smith, 1165 The Myxomycetes of Wisconsin - Alletta F. Dean, 1221 The annual half-volume of the Transactions Of the Wiscon¬ sin Academy of Sciences, Arts, and Letters is issued in six numbers, under the editorial supervision of the Secretary. The price of this number is 50c. 1142 Wisconsin Academy of Sciences , Arts , and Letters. SPECIES OF HYPHOLOMA IN THE REGION OF THE GREAT LAKES. EDWARD T. HARPER. The genus Hypholoma is characterized by dark brown or purple brown spores, adnate or adnexed lamellae and an evi¬ dent appendiculate veil. Plates LXXII B, LXXVII A and LXXXII E show the nature of the veil. It tears away from the stem as the pilous expands and remains banging in patches from the margin of the pileus. In plants with a fibrous uni¬ versal veil like Hypboloma lacrimabundum, PL LXXVII C the veil scarcely differs from the cortina in Cortinarius. The veil is so- fragile that it soon disappears and can be seen to ad¬ vantage in young plants only. A glance through the photographs will show the general ap¬ pearance of plants in the genus. There is no common type as in Myeena or Omphalia and it is sometimes difficult to decide whether a plant belongs to this genus or not. Dr. Peck has changed several plants described as Hypholoma to Psilocybe. Hypboloma ornella he changed to Pholiota omella. Plants in which the veil varies to annulate are apt to be placed in the genus Stropharia. Attempts hitherto made to divide the genus do not avoid this difficulty. It would probably exist with any arrangement as there are few sharp dividing lines in nature. The genus is divided into five sections. I. Fascicularia. Pileus smooth, dry, bright colored. IT. Viscid a. Pileus viscid. III. Velutina. Pileus fibrous or scaly. IV. Flocculosa. Pileus covered with fioccose scales. V. Appendiculata. Pileus hygrophanous. Harper— Species of Hypholoma . Il4& \J‘ ?fjQf Fascicularia, Velutina and Appendiculata are natural divi¬ sions and contain three distinct groups of plants. Viscida and Flocculosa are not natural divisions. Few species have been referred to them and viscid and floccose plants are found in the- other sections. We have retained them only because we did not wish to burden the other sections with unrelated forms. Our first aim has been to place all closely related species and var¬ ieties in natural groups. Our purpose is to encourage obser¬ vation and to this end we seek to accomplish three things: (a) To place the agarics in groups large enough to be easily recog¬ nized so that observers can identify their plants without too much labor and with a good degree of certainty, (b) To place in the groups all recorded species and forms that need to be¬ taken into account if one is to recognize the significance of the form he has collected, (c) To open up the lines of variation so that observation may be intelligently directed. We hope that such grouping will help in securing a phylogenetic arrange¬ ment which is the only final and scientific classification. The groups are based on the common well known species.. Almost everyone of these species is surrounded by a number of forms which have been described as species but whose exact af¬ finities need further observation. There are four large groups; in the genus Hypholoma: The brick tops in the section Fas- cicularia constitute the first. Our common species is easily dis- tinguished and we have associated with it the forms which need to be especially studied in relation to it. There are two^ groups in the section Velutina. One of the scaly forms based on Hypholoma lacrimabundum and another based on Hypholo¬ ma velutinum, a group which appears to be well characterized by the peculiar spores. All of the common hygrophanous forms in the section Appendiculata. with a single exception, have been placed in one group. The few remaining plants which appear to be without evident affinities are in the sections Viscida and Flocculosa. Two groups, the Hypholoma sublateritium group and the Hypholoma candolleanum-appendiculatum group are valuable* as food plants. The species are common and edible. The plants in the other groups are more rare. 1144 Wisconsin Academy of Sciences, Arts, and Letters. We have used photographs made at Sumner, Washington, for some species of which we had no negatives made in; our region. Two or three species have been included which have not yet been reported in the Great Lakes Region. Thanks are due to Prof. R. A. Harper and Dr. Bi. O. Dodge of Columbia University for examining species in Dr. Peck’s col¬ lection at Albany, X. Y. ; to Prof. C. E. Allen and Prof. J. B. ‘Overton of Madison, Wis. for the loan of literature from the University library and1 to others whose names are mentioned in the text for information and help of various kinds. Syxopsis of the Species. I. Fascicularia. Pileus smooth, dry, bright colored. The Hypholoma sublateritium group. Hypholoma sublateritium, Schaeff. Plate LXXII. Hjypholoma perplexum, Pk. Plate LXXIII. Hypholoma capnoides, Fr. Plate LXXIV. Hypholoma fasciculare, Huds. Plate LXXV. Related species: Hypholoma sublateritium var. squamosum, Cke. Hypholoma epixanthum, Fr. Hypholoma elaeodes, Fr. Hypholoma dispersum, Fr. II. Yiscida. Pileus viscid. Hypholoma ambiguum, Pk. Plate LXXVII. Hypholoma . Plate LXXYI. III. Velntina. Pileus fibrous or scaly. The Hypholoma lacrimabundum group. Hypholoma lacrimabundum, Fr. Plate LXXVII C. Hypholoma ecliiniceps, Atk. Plates LXXVII B, LXXVIII. Related species: Hypholoma rigidipes, Pk. The Hypholoma velutinum group. Hypholoma velutinum, Pers. Plate LXXIX. Related species: Hypholoma velutinum var. leiocephalum B & Br. Hypholoma boughtoni, Pk. Hypholoma rugocephalum, Atk. Hypho¬ loma pyrotrichum, Fr. Hypholoma delineatum, Pk. Harper — Species of Hypholoma . 1145 IV. Floceulosa. Pileus silky or floccose with separating scales. Hypholoma artemisiae, Pass. Hypholoma aggregatum, Pk. Hypho¬ loma aggregatum var. sericium, Pk. Hypholoma olivaesporum. Ell. & Ev. V. Appendiculata. Pileus hygrophanous. The Hypholoma candolleanum-appendiculatum group. Hypholoma candolleanum, Pr. Plates LXXX, LXXXIII B. Hypholoma appendiculatum, Bull. Form Hypho¬ loma incertum, Pk. Plate LXXXIII C. a. Pileus rugose wrinkled. Hypholoma leucotephrum, Berk. Plate LXXXI. b. Pileus cracked and split. Hypholoma cutifractum, Pk. Plate LXXXII. c. Pileus with a dark watery disk and light colored margin. Hypholoma madeodiscum, Pk. d. Thin pileus and slender striate stem. Hypholoma hymenocephalum, Pk. e. Long slender stems and narrow pilei. Hypholoma longipes, Pk. Plate LXXXIII A. Related species: Hypholoma campanulatum, Pk. Hypholoma californicum, Earle. f. Pileus floccose. Hypholoma appendiculatum var. flocculosum, Boud. var. lana- tum, B. & Br. Hypholoma flocculentum, McClatchie. Hypho¬ loma fragile, Pk. Hypholoma hololanigerum, Atk. g. Veil annulate. Stropharia irregularis, Pk. Stropharia longistriata, Murrill. h. Doubtful forms. j Hypholoma atrofolium, Pk. Hypholoma subaquilum, Bann. 1146 Wisconsin Academy of Sciences , Arts, and Letters. Description of the Species. 1. FASCICULARIA. THE HYPHOLOMA SUBLATERITIUM GROUP. The group contains five closely related European species all of which have been reported from the United States' : Hypholo- ma sublateritium, Hypholoma capnoides, Hypholoma epixan- thum, Hypholoma elaeodes and Hypholoma fascicular e. Dr. Peck added his own Hypholoma perplexum to the list and gave a key to the species in U. Y. state Mus. Mem. 4. He based the principal division on taste but the taste test is not to be relied on. Peck himself says in later reports that Hypho¬ loma suhlateritium is often mild tasting and Bresadola reports the same of that species in Europe. In his summary of the Hew York species of Hypholoma, U. Y. state Mus. Bull. 150, Peck reports only three species, Hypholoma, sublateritium, Hy¬ pholoma perplexum and Hypholoma capnoides. Mcllvaine in One Thousand American Eungi includes all the species but speaks of them as confused and perplexing. As far as our collections go the distribution of species appears to be about as follows : The small plants with yellow caps tinged with red found in clusters on coniferous logs in the northern woods are Hypholo- mai capnoides. Dr. Peck limits the species in the same way. The plants agree with Cooke’s Illust. 559, but are smaller than the descriptions call for and as some writers make Hypholoma capnoides a variety of Hypholoma sublateritium, observers should watch for forms more nearly resembling that species. Hypholoma fascicular© is found on th© Pacific coast where it appears to take the place of Hypholoma sublateritium with us. The latter species is not found there so far as w© have seen. Mur rill does not report it among the Agaricaceae from the Pacific coast. Hypholoma faaciculare was identified by Berkeley from early collections in Ohio, but Dr. W. G. Stover informs me that he does not think it has been confirmed in recent years. Harper — Species of Hypholoma . 1147 Dr. Peck separated the mild tasting forms of Hypholoma sublateritium and based on them a new species, Hypholoma perplex urn. It has usually been considered a form of Hypholoma sublateritium, compare Atkinson, Mushrooms, p. 27, but Peck retains the species in his later writings and bases it on other characters as well as taste. Wie have collected the form in the northern woods. It approaches in some respects Hypholoma epixanthum which is mild tasting and it is possible that Peck’s report of that species in Report 22 was based on this form. Peck does not include Hypholoma epixanthum in his summary of the X. Y. species and it seems to be little known in the United States, According to Cooke’s Illustration PI. 560 it is a bril¬ liant red and yellow plant of the size and habit of Hypholoma sublateritium. The gills are light yellow, becomming cinereous not purple or green, taste mild. It should be looked for on fir logs and stumps. We know nothing of Hypholoma elaeodes. It is said to be intermediate between Hypholoma fasciculare and Hypholoma sublateritium. Cooke PL 562/ figures it as a small dull colored variety of Hypholoma fasciculare. The figure shows a plant quite similar to our photograph of Hypholoma capnoides with more slender and flexuous stems. The abundant brick tops about' stumps and logs in Illinois, Wisconsin and Michigan we refer to Hypholoma sublateritium. The taste is mild or bitter. The plants are very common and much used for food. Hypholoma sublateritium, Schaeff. PI. LXXII. The plants are very common throughout our whole region. They grow in dense clusters about stumps and logs in woods and pastures. The species is illustrated by Cooke PI. 557. Our photograph of the young plants shows the character of the veil and the cobwebby covering of the caps. PiLEtrs 2-3 inches or more broad, fleshy, convex becoming plane, often irregular in crowded clusters, obtuse, glabrous, sometimes covered with a thin white cobwebby coat when young, 1148 Wisconsin Academy of Sciences, Arts , and Letters. dry, dark brick red or brown, paler on the margin especially when young. Flesh whitish or yellowish. Taste mild or bitter. Lamellae adnate, close, narrow, whitish to olivaceous and finally purplish brown. Veil membranous, torn, soon disappearing. Stem. 2-4 or more inches long, about % inch thick, equal or tapering downward, fibrillose becoming glabrous, stuffed to hollow, ferruginous below, pale above, striate at the apex. Spores 8-4 x 6-8y. Densely caespitose about old stumps, logs and roots. Late summer and autumn, often earlier, common, edible. NOTE. Hypholoma sublateritium var. squamosum Cke., Illust. 658, is shown in Atkinson’s photograph. Mushrooms Pl. 6. It has floccose scales in concentric rows near the margin of the pileus, Peck reports the same form from New York State. Hypholoma perplexum Pk. PI. LXXIII. The species was first described in X. Y. State Mus. Rep’t 23 p:. 99. It is illustrated and further described in X. Y. State Mus. Mem. 4 pp. 166-167 and PI. 60. It is also included in the summary of the X. Y. species of Hypholoma, X. Y. State Mus. Bull. 150 p. 78. Peck says it differs from Hypholoma sublateritium in its ‘‘smaller size, paler margin of the pileus, somewhat umbonate pileus, mild taste, paler and more slender stem which is always hollow even when young.” The plants in PI. LXXIII were taken from a cluster which grew at Xeebish, Mich. They had the peculiarities claimed for the species. “Pileus convex or nearly plane, sometimes umbonate, gla¬ brous, reddish or brownish red, usually yellowish on the margin. Flesh white or whitish. Taste mild. Lamellae thin, close, slightly rounded behind, adnexed, pale yellow becoming tinged with green, finally purplish brown. Stem rather slender, equal or nearly so, firm, hollow, slightly fibrillose, whitish or yellow¬ ish above, reddish brown below, Spores 3-4 x 6-8/a. Pileus 2.5-7 cm. broad, stem 5-7 cm. long, 4-8 mm. thick. Generally caespitose. On or about stumps or prostrate trunks of trees in woods or open places. Common, August to Xovember. Edible.” Harper— Species of Hypholoma. 1149 Hypholoma capnoides Fr. PI. LXXIV. The species grows on stumps and logs of coniferous trees in the northern woods. The average size of the plants is shown in the photograph. The European plants are said to have caps 1-3 inches broad hut we have not seen them so large. The Hew York plants as reported by Peck agree with ours. Ours also have the reddish tint in the center of the pileus noted by Peck. This agrees with the illustrations of Cooke and Fries but not with the descriptions which call for an evenly colored ochrace- ous or yellowish pileus. The stems in the cluster photographed are not as long as in Cooke’s figures but the length of the stem depends on the position of the plants. The plants from which our cluster was taken grew on a balsam log at Heebish, Mich, in September. Pileus 1-3 inches broad, convex or expanded, obtuse, dry, smooth, even on the margin, ochraceous or yellowish. Taste mild. Lamellae adnate with slight lines down the stem, sepa¬ rating, gray with a bluish tinge when young becoming brown or purple brown. Stem 2-3 inches long, 2-3 lines thick, nearly equal, hollow, curved or flexuous from position., silky, striate at the top, whitish, darker below. Spoees 4-5 x 7-8/*. Caespitose or scattered on logs of pine, spruce and balsam. Hypholoma fasciculare Huds. PI. LXXY. The photograph is from plants which grew on the ground and on logs at Sumner, Washington. The whole plant was yellow except the brown center of the pileus. The: disk was somewhat umbonate. The gills were yellow becoming greenish and finally olive brown. The plants photographed have stems shorter than usual and slightly thickened at the base as in var. robustior. In the dense clusters on logs the stems were long and slender and the plants agreed with Cooke’s figures PI. 561. Murrill re¬ ports the plant as very common on the Pacific coast. It seems to take the place of our Hypholoma sublateritium in that region. The taste is bitter and the plants are supposed to be poisonous. 1150 Wisconsin Academy of Sciences , Arts , and Letters. Pileus about 2 inches broad, fleshy, convex to expanded, umbonate, obtuse, even, smooth, dry, yellowish on the margin, reddish bay in the center. Flesh yellow, bitter. Lamellae adnate, close, linear, yellow, becoming greenish and olivaceous brown. Stem 2-5 inches long, 2-3 lines thick, hollow, slender, flexuous, fibrillose, yellow. Spores 3-4 x 6-7/l On stumps and logs and on the ground. II. Vjscida. Hypholoma ambiguum Pk.# PI. LXXYII A. The plants represented in PL LXXV1I A grew solitary on the ground in open woods at Sumner, Washington. They were very beautiful with the characters well defined. The pileus was convex, smooth, buff, evenly colored except on the very margin which was whitish like the veil. The margin was even and the pileus only slightly if at all viscid. The gills were close, adnate, whitish becoming dark brown with spores which measured 8 x 12/l The white veil hung in large reflexed flaps on the margin of the pileus. It was quite thick and with striate ridges on the upper surface as in species of Stropharia. The stem was bulbous at the base, stuffed, covered with a white floceose coat on a buff background. It was striate groved above the annulus and slightly striate with lines toward the base. I)r. Murrill recognized the photograph at once as Hypholoma ambiguum Pk. It appears to be a well known plant on the Pacific coast. Murrill in Mycologia Hov. T9 12 pp. 304-305 reports a large number of collections and says “It is one of the most striking and abundant gill fungi on the coast.” Peck’s description, Torr. Bull. June 1898, pp. 325-326, was based on plants collected in fir woods near Portland, Oregon. We give Peck’s description below but we should not have recog¬ nized the plant from the description. We are informed that the type specimens at Albany have been lost. “Pileus thin, convex becoming nearly plane, glabrous, sub- viscid when moist, straw color inclining to pale orange, the mar- * Mr. Sanford M. Zeller, Mycologia, May, 1914, makes a study of the development of this species and concludes that it belongs to the genuB Stropharia. Harper — Species of Hypholoma, 1151 gin in immature plants append! culate with the remains of the white thick veil which in very young plants -conceals the lamellae but which in mature ones wholly disappears. Flesh white. Lamellae close, adnexed, grayish at first, changing to dark brown where wounded, becoming blackish brown with age. Stem slender, equal, stuffed or hollow, squamose near the base, paler than the pilous. Spobes elliptical 7.5x12.5* — 1 5/* Pilous 5 — 13 cm. broad, stem 12—22 cm. long. Fir woods, Portland, Oregon, November. The dried plants have the general appearance of some species of Stropharia but the appendiculate character of the veil and the entire absence of an annulus indicate that the species is a Hypholoma.” Hypholoma . PL LXXVI. The plants shown in PI. LXXVI grew on the ground beside a log in open woods at Sumner, Washington. They were scattered in habit. The pileus was convex or campanulate becoming ex¬ panded with a slight umbo, slightly viscid when moist, innate fib¬ rous and fibrous scaly on the margin, yellow. Flesh cream color. The lamellae were close, ventricose, adnate or slightly decurrent, sometimes with a broad shallow sinus, white becoming purple brown with the spores. The veil was thick and fibrous covering the gills when very young remaining as a fibrous margin on the pileus when the plants were mature. The stem was equal or tapering slightly downward, hollow or stuffed, fibrous striate or scaly, smooth at the top, white above becoming yellowish red below. 'Spores purple brown, elliptical 8x12/*. The plants have many points in common with Hypholoma ambiguum as described by Peck and we would probably have referred them to that species if Dr. Murrill had not claimed it for the plant in PI. LXXVII A. The plants also agree well with the description of the European Hjypholoma dispersum but that species is not said to be viscid and our plants do not look like Cooke’s figure PI. 586. Fries leones 133 agrees better but there is not much evidence for such an identification. 1152 Wisconsin Academy of Sciences, Arts, and Letters . III. Veltjtina. The IIyphoeoma Lacrimabundum Group. Hypholoma lacrimabundum Fr. PL LXXYII B C and LXXVIIL Typical Hypholoma lacrimabundum is shown in Pl. LXXYII C. compare Atkinson’s fig. 28. The pileus is covered with tawny fuscous scales composed of tufted fibers on a whit¬ ish background. The flesh is whitish and also the fibers of the annulus. The plants are umber rather than tawny when dry. The plants in PI. LXXVIII differ somewhat. They are very large and dull tawny yellow with concolorous flesh and veil. The gills are very white floeoulose on the edges and the spores are smaller 3 — 5x7- — 8/*. The plants appear to be what Atkinson has described as Hypholoma echinieeps, Ann. My col. 1909 p. 371. They agree in the large size, Atkinson gives the dimen¬ sions 1 2 — 14 cm. high, 3 — 7 cm. across the pileus and the stem 8 — 12 mm. thick, in the densely scaly pileus of the young plants, in the ochraceous brown colors, in the ample veil which in our plants soon disappears and in the size of the spores and basidia. Spores 3.5 — 5x7 — 9a. Basidia 7x28 — 30/a. We did not ex¬ amine fresh plants for cystidia which Atkinson says are in clus¬ ters of 2 — 8 and 10 — 1 2/a thick, extending 30—40/a above the hy¬ men! um . Atkinson says the plants are similar to Hypholoma pyrotrichum but have smaller spores and more dense scales in the center of the pileus. The spores are not only smaller but entirely different in character from those of Hypholoma py¬ rotrichum which belongs to the Hypholoma velutinum group. Our plants are very close to Hypholoma lacrimabundum. Pl. LXXYII B shows an intermediate form which cannot be dis¬ tinguished in the photograph from LXXYII C except by the thinner stem. The plants grow in damp grassy places and in pastures and about stumps and logs in woods. The collection from which Pl. LXXYII 0 was taken was found by an oak stump in a pasture at Glencoe, Ill. The photograph has been published already by Hr. W. S. Moffatt in Bull. VII, Pl. XI of the Chicago Acad, of Sciences. Harper — Species of Hypholoma. 1153 Pl. LXXVII B is from a collection found at Devil’s Lake, Wisconsin and the large cluster in PI. LXXVII! grew on the ground in open woods at Heebish, Mich. Atkinson gives an extended description of Hypholoma lacrimiabundum in Mush¬ rooms, pp. 28 — 30 and figure 28. The usual brief description of the species is as follows : Pileus 1 — 3 inches broad, fleshy, convex or umbonate, ob¬ tuse, pileus squamose with tufted fibers, tufts dark fuscous with a tawny or yellowish tinge on a white background. Flesh whitish or tawny, Lamellae adnate or broadly sinuate, rounded when old, close, slightly ventricose, becoming dark purple and spotted with the blackish spores, often with drops of moisture on the edge. Stem 2—3 inches long, V2 inch or less thick, hol¬ low, scaly like the pileus below the annulus, smooth or white pruinose above. S pokes almost black 5 — 6x8 — 10/*. Atkin¬ son gives 7 — 8x9 — 11/*. NOTE. Hypholoma rigidipes, Pk. N. Y. State Mus. Bull. 139, p. 24, PI. Ill fig. 1 — 6, is based on plants found growing among tall weeds in September. Dr. Peck in Bull. 150, says “This species is well marked by its gregarious modes of growth. In the ornamentation of the pileus it is related to Hypholoma lacrimabundum, but it differs in its mode of growth, smaller size, more slender rigid stem and larger apiculate spores.” Prof. It. A. Harper says “The type of Hypholoma rigidipes has rather narrow spores slightly apiculate and slightly rough, not ex¬ actly like the spores of Hypholoma rugocephalum.” It may belong to the following group. The Hypholoma Velutinum Gkoup. The spores are the most diagnostic character in this group. They are almost black in mass, broadly oval, slightly inequila¬ teral or irregular, apiculate at each end, rough or echinulate and not pellucid under the microscope, 6 — 7x8 — 11/*. Plants sent me by Dodge which he had referred to Hypholo¬ ma rugocephalum Atk. have exactly the same kind of spores and they are so described by Atkinson. According to Dodge the spores of authentic specimens of Hypholoma boughtoni Pk. are the same though Peck does not describe them as rough or echinulate. Furthermore Dr. Dodge examined the spores of Hypholoma velutinum Pers. in Massee’s collection at the Xew York Botanical Garden and found them the same. As described 1154 Wisconsin Academy of Sciences , Arts, and Letters . in Sylloge they are not quite so broad and not said to be rough. M'assee’s figure of Hypholoma pyrotrichum Fr. also shows the same broad rough warty spores though they are dark brown in the illustration rather than blackish. But while the spores show remarkable agreement these four species vary in color and surface of the pileus. 'Hypholoma velutinum has a thick matted fibrous universal veil as in PL LXXIX and Cooke’s Illus. 563 and is lurid or tawny brown. Hy¬ pholoma pyrotrichum has the same kind of veil but is bright fiery tawny as shown in Cooke’s Illus. 564. Atkinson describes the pileus of Hypholoma rugocepholum as smooth, not hairg or scaly, slightly viscid and marked by strong radiating wrinkles. Peck says the pileus of Hypholoma boughtoni is glabrous or slightly fibrillose often concentrically or areolately cracking. Prof. IL A. Harper who has examined many of Peck’s type specimens of Hypholoma for me reports that the dried speci¬ mens of Hypholoma buoghtoni are the same as those of Hypho¬ loma rugocephalum. He says “the spores are broad, rough, black and apieulate and the specimens are the same in external appearance.” The illustrations of the different plants show the different ex¬ ternal characters as described. The spores are so diagnostic however that care should be taken by observers to see if the differences are not due to age or weather conditions. NOTE. Forms with different spore characters have been associated with this group and we mention them here though they probably be¬ long to another group. Hypholoma velutinum var. leiocephalum B. & Br. is said to be a smaller plant growing coespitose on stumps with a smooth ragged pileus. Dodge says specimens so labelled in Massee’s collection have spores entirely different. It has not been reported from this country. Hypholoma delineatum Pk. is placed in this group by the author who says “It has the general appearance of Hypholoma rugocephalum but differs in the narrow, obtuse and smooth spores and broader flask shaped cystidia. Hypholoma velutinum Pers. PI. The plants illustrated in PL LXXIX grew on the ground near a stump in a. pasture at Geneseo, Ills. They agree with the description of Hypholoma velutinuml, having a universal veil of matted fibers, an hygrophanous lurid pileus becoming Harper — Species of Hypholoma. 1155 tawny and finally clay colored when dry and the characteristic broad, rough, apiculate, opaque spores. It is the only form in the group which I have collected. Pileus 2' — 3 inches broad, fleshy, from ovate to campanulate and expanded, obtusely iimbonate, even on the margin, covered when young with a veil of appressed matted fibers becoming glabrate, hygrophanous, lurid when young becoming tawny and finally clay colored or isabelline. Flesh very thin, concolor- ous. Lamellae adnexed, easily separating, broad, not crowded, pallid with the edge white, becoming dark brown, black dotted. Stem 2—4 inches long, up to Vo inch thick, hol¬ low, equal, covered with a fibrous coat like that on the pilous below the annulus, white tomentose above. Colored like the pileus but lighter. Veil of fibrous tufts adhering chiefly to the mar¬ gin of the pileus, whitish becoming black with the spores. Spobes ellipsoid, oblique or irregular, apiculate, fuscous, not pellucid, 5x9- — 10/*. Basids 7 — 8x8 — 25/*. Cystids 9x40/*. NOTE. Hypholoma rugocephalum Atk. is fully described and illustrated in “Mushrooms” p. 30 and PI. 8. Hypholoma bough toni Pk. and Hypholoma delineatum Pk. are described in N. Y. State Mus. Bull. 150 pp. 82— -84. The former is figured in Bull. 139 PL II, figs. 1 — 7. IV. Flocculosa. As stated above the group is not a natural one. There is a whole series of forms in which the pileus is covered with sepa¬ rating floceose scales in the Hypholoma candolleanum-append- iculatum group and Hypholoma sublateritium also has a scaly form. We have no photographs of the plants which remain in the section. Hypholoma artemesiae Pass, is reported in Farlow’s index. Hypholoma aggregatum Pk. and var. sericeum Pk. are de¬ scribed in H. Y. State Mus. Bep’t 46 p. 106! and Bull. 54 p. 972, PI. 79, figs. 8- — 14. The plants are densely tufted and grow about the base of stumps. They are said to resemble Hy¬ pholoma candolleanum but are not hygrophanus. Hypholoma aggregatum is distributed in Shear’s H. Y. Fungi Ho. 13. Hypholoma olivaesporum Ell. & Ev. is a small plant about 1 inch high and y2 inch broad growing among sphagnum. It has 1156 Wisconsin Academy of Sciences, Arts, and Letters . free gills and the pileus is covered by a reddish gray furfur- aceous coat. Morgan transfers it to the genus Pilosace. V. Appendiculata. About half of the species of Hypholoma reported from the United States are in this section. All except Hypholoma hy¬ dro philmn which is reported from Michigan by Kauffman ap¬ pear to belong to a single group. We have named the group after the two common European species Hypholoma candollea- num and Hypholoma appendiculatum both of which are re¬ ported from this country. The Hypholoma Candolleanum- Appendiculatum Group. Hypholoma candolleanum Fr. PI. LXXX. Typical plants of the species Hypholoma Candolleanum Er. are shown in PI. LXXX. Compare also Cooke’s Illustration PI. 546. They grow scattered or in clusters on the ground or on very rotten logs in the borders of woods and bushy places. The plants photographed were collected at Sumner, Washington. The plants are acorn shaped at first as in D, becoming cam¬ panula te and expanded, often with the margin split and up¬ turned. The surface usually appears smooth but there is a slight universal veil which under favorable weather conditions appears as separating floccose scales on the pileus. This is true of all the species in the group. A few such flocci are seen on the young plant in D. The margin of the pileus is usually even but sometimes appears finely striate with long lines. Es¬ pecially is this true of the dried plants PI. LXXXIII B. The striate margin is noted in a number of plants in the group. The partial veil is a thin woven membrane seen also in I), which clings in patches to the margin of the pileus as it expands. This veil is characteristic and gives the name to the section. The gills, seen in C, are close and rather narrow, slightly ventricose, rounded and adnexed or broadly sinuate behind with a slight tooth connecting with lines down the stem. The gills are violo- ceous when young becoming purple brown in age and this is the Harper — Species of Hypholoma . 1157 chief diagnostic mark of the species. All other species in the group have the gills whitish at first. The stem is smooth and white, sometimes slightly floccose like the pileus, equal and fistu- lose. It is striate at the apex as in A and this is the second diag¬ nostic mark of this species. The spores are elliptical, dark brown* 4 — 5x8 — 9/a. The two marks by which the species is known are the gill color and striate apex of the stem. The plant does not appear to be well known. A tkinson mentions it very briefly and Peek reports it as rare in Hew York State. He is also doubtful about the color of the young gills and says the Europ¬ ean illustrations do not show them violaceous. It would appear however that Cooke’s Illust. 546 is intended to represent them so as contrasted with the white gills in PI. 547. The color of the young gills should be carefully noted by collectors and the distribution of the plants recorded. Hypholoma appendiculatum Bull. Hypholoma appendiculatum Bull, is the most common species in the group. It occurs everywhere, in lawns and pastures, on or near logs, stumps and buried roots. The species is dis¬ tinguished from Hypholoma candolleanum by the gills being whitish when young, becoming flesh colored and finally purplish brown. The stem also is more floccose and less striate at the apex though Hypholoma appendiculatum often has the apex of the stem somewhat striate. The exact relation of our plants to those of Europe is some¬ what uncertain. Atkinson, Mushrooms p. 27, and Murrill, Mycologia Jan., 1912, consider them the same species. Prof. Farlow, than whom there is no better authority, in a letter to me takes the same view. Peck separates the pale yellowish or whitish forms found scattered on lawns and makes them a new species. Ten of the collections at Albany are named Hypholoma incertum and only two Hypholoma appendiculatum, both of which are doubtful. The plants in our region vary much. Some are nearly white or pale yellow, others are deep hygroph- anous brown. Some are very caespitose and others single or scattered. I All the forms run together however. The pure 1158 ’Wisconsin Academy of Sciences , Arts , and Letters. white plant with floccose stem in Plate LXXXIII 0 we have labelled Hypholoma incertum though it is doubtful whether the form is separate enough to merit a distinct name; Illustrations of the species are common. Miurrill figures both the light and dark colored forms in Mycologia Jan. 1912. At¬ kinson, Mushrooms PI. 7 shows photographs of the floccose forms. Mcllvaine and Hard show very slender forms. Peck gives illustrations of Hypholoma incertum in X. Y. State Mus, Mem. 4 PL 60. A large number of forms more or less closely related to Hy¬ pholoma candolleanum or Hypholoma appendiculatum have re¬ ceived specific names. They differ chiefly in size, shape or color, in the split and cracked pileus, in the character of the universal veil (floccose forms) or in the character of the partial veil (annulate forms). a. Pileus rugose wrinkled. Hypholoma leucotephrum B. & Br. PL LXXXI. Plate LXXXI shows whitish plants with long flexuous stems which are deeply sulcate striate at the top. The pileus is rugose wrinkled. The plants grew in clusters on logs and on the ground at Sumner, Washington in June. The plant is illus¬ trated by Cooke, Pl. 548. The gills are whitish at first becom¬ ing grayish and almost black. The spores are 4 — 5x6 — 8/a. The form agrees with Hypholoma candolleanum in the striate apex of the stem and with Hypholoma appendiculatum in the whitish color of the young gills though they have no incarnate tinge. Wle have collected the species also in Stuart West’s yard at Geneseo. Ills. b. Pileus cracked and split. Hypholoma cutifractum Pk. PL LXXXII. Under certain weather conditions the plants in this group vcrack and split and the cuticle of the pileus peels off in patches from the flesh. A cracked form which Peck calls Hypholoma Harper— Species of Hypholoma, 115^ cmtifractum is shown in PL LXXXII. The plants grew in a yard among grass at Geneseo, Ill, in June. 1A perfect pilous could scarcely he found. The plants began to crack and peel as soon as they started to grow. Peck’s Hypholoma cutifractum, Torr. Bull. Dec. 1895 p. 490, was based on forms like this col¬ lected in Kansas by Bartholomew. The plant is distributed in, Pun. Col. 1303. The specimens in our copy are not much cracked. A series of cracked forms can probably be found cor¬ responding to each species in the group. c. Pilous with a dark watery disk and light colored margin. Hypholoma madeodiscum Pk. is described in X. Y. State * Hus. Rep’t 38 p. 88, and Bull, 150 p. 75. The characteristic feature which gives the plant its name is that the moisture es¬ capes from the margin of the pileus before it does from the disk. The plant grows on logs! with a scattered habit, has the young lamellae whitish and the stem striate at the apex. Peck has seen the plant but once. It suggests Hypholoma leucotephrum. In our photographs of that species the disk of the pileus is darker than the margin. d. Pileus thin, stem slender, striate. Hypholoma hymenocephalum Pk. is described in X. Y. State Mus. Rep’t 31, p. 34. It grows on damp ground among fallen leaves and is remarkable for the very thin pileus and slender stem. It has young gills whitish and stem] striate nearly to the top. The photograph of Hjypholoma incertum in Mjcllvaine PI. XCVII and Hard, PL XXXVII suggests this form though the.- illustration does not show a striate stem. e. Stem long, pilei relatively narrow. Hypholoma longipes Pk. PL LXXXIII A. Long stemmed plants are reported from the Pacific coast. The photograph was made from dried specimens of plants collected at Sumner, Washington. They agree exactly with Peck’s description of Hypholoma longipes, Torr. Bull. Hay, 1895, p. 204, even to the umbilicate apex of the pileus in 1160 Wisconsin Academy of Sciences, Arts, and Letters. dried plants. We have observed this character in Hypholoma candolleanum, PI. LXXXIII Bi. The apex is often perforate. The gills are whitish becoming nearly black, the apex of the stem is striate and the base very white myceloid. Spores 7%yfl2/A, quite large for the group. There are two more Californian species which Murrill, who has examined the type specimens says are very similar to Hy¬ pholoma longipes, Hypholoma campanulatum Pk. Torr. Bull. June, 1909, p. 336 and Hypholoma califomicum Earle. Bull. X. Y. Bot. Garden 2 pi. 344. The latter is larger than Hypho¬ loma longipes and has ventricose gills and smaller spores, 3x5 — 6/a. f. Pileus floccose, especially when young. Atkinson, Mushrooms, Pl. 7 shows the floccose form of Hy¬ pholoma appendiculatum. Bondier Icon. My col. I t. 137 figures Hypholoma appendicu- latum var. flocculosum. It is larger than the type with the pileus more sulcate and covered with soon disappearing flocei. McCIatchie. Proc. S. Cal. Acad. Sci., 1, p. 381 has named a very floccose form of Hypholoma appendiculatum; Hypholoma flocculentum. It appears, to be the most extreme form that has been noted. The flocei form a thick coat and are somewhat persis¬ tent. It must be very similar to Berkeley and Broome’s var. lanatum which is said to be “a curious form, densely woolly when young, traces of the woolly coat remaining at the apex when the pileus is fully expanded.” Another form is Hypholoma. hololanigerum Atk. Ann. MVcol. YII p. 371. The plants grew on rotten wood and the whole sporophore was covered with long white squamules. The plants are small and may be nearer the Psilocybe pennata group. Still another form is Hypholoma fragile Pk. X. Y. State Mus. Bull. 131, p. 22 and PL Y. figs. 1- — -7. It is a small plant which the author places in the section flocculosa. Dr. Peck suggests! the resemblance to Hypholoma incertum and the illustrations vconfirm this. It is however reported as not hygrophanous. These floccose forms are due to the greater or less development uf the universal veil and their appearance is probably largely Harper — Species of Hypholoma . 1161 determined by weather conditions. A whole series of them can probably be found. g. Veil annulate. In these plants the veil makes a ring on the stem instead of clinging to the margin of the pileus. They are of course de¬ scribed in the genus Stropharia. Such variations between an¬ nulate and appendiculate in the character of the veil often occur in the praecox-dura group in the genus Pholiota and elsewhere. Peck describes such a form as Stropharia irregularis, Torr. Pull. Jan. 1900, pp. 16- — 17. It had a slight annulus soon breaking into fragments and disappearing. The author ex¬ pressed the opinion later that it is a form of Hypholoma in- certum. Murrill in Mycologia, Hov. 1912, pp. 301 — 302, has de¬ scribed a form with a much more persistent annulus, Stropharia longistriata of which he says “Similar to Hypholoma appendieu- latum in general appearance but always furnished with a thick persistent annulus.” h. Doubtful forms. Hypholoma atrofolium Pk. Torr. Bull. Oct. 1896, p. 417 is of doubtful affinities. Mtirrill suggests that it may belong to the genus Psathyrella. Hypholoma subuquilum Bann. 1ST. Y. State Mus. 44 pp. 70 — 71 shows nothing distinctive according to the brief description except the small spores 4x5/*. Species Omitted. 1. Changed to Pholiota. Hypholoma omella Pk. (= Pholiota appendiculata Pk.) changed to Pholiota ornella Pk. 2. Changed to Psilocybe. Hypholoma nitidipes Pk. Hypho¬ loma phvllogenum Pk. Hypholoma squalidellum Pk. (Hypho¬ loma squalidum Pk.) Hypholoma modestum Pk. 3. Omitted in Peck’s summary of H. Y. species. Hypholo- mia sacoharinophilum Pk. Hypholoma hirto-squamulosum Pk. 4. Hypholoma camoropsis Mont., named from Sullivant’s collection, is omitted by Ohio mycologists. 1162 Wisconsin Academy of Sciences , Arts , and Letters , INDEX _ ^ , Plate Page Hypholoma aggregatum . 1155 aggregatum v. sericeum . 1155 ambiguum . . . LXXVII A 1150 appendieulatum . 1157-8 appendiculatum v. flocculosum . 1160 artemesiae . . . . 1155 boughtoni . 1154-55 californicum . 1160 campanulatum . 1160 candolleanum . LXXX-LXXXIII B 1156-7 capnoides . . . . . LXXIV 1149 cutifractum . LXXXII 1158-9 delineatum . . . . 1154 dispersum . 1151 echiniceps . . . . . . . LXXVII B LXXVIII 1152 elaeodes . 1147 fasciculare . . . . . . . . . . LXXV 1149 flocculentum . . . 1160 fragile . 1160 balolanigerum . 1160 hydrophilum . . . 1156 hymenocephalum . . . 1159 incertum . LXXXIII C 1157 lacrimabundum . . . LXXVII C 1152 leucotephrum . LXXXI 1158 longipes . LXXXIII A 1159-60 madeodiscum . . . 1159 olivaesporum . . . . . . 1155 perplexum . LXXIII 1148 pyrotrichum . . . 1154 rigidipes . 1153 rugocephalum . 1153, 55 sublateritium . LXXII 1147 sublateritium v. squamosum . . . 1148 velutinum . LXXIX 1154-5 velutinum v. leiocepbalum . . . 1154 Stropharia ambigua . . . 1150 irregularis . . . 1161 longistriata . 1161 For list of doubtful and omitted species see p. 1161. Harper — Species of Hypholoma , 1163 NOTE ON PHOLIOTA EREBIA Fr. (With Plate LXXXIV) Since publishing the photographs of Pholiota erebia in Part I, Plate XXX of this volume I have collected a number of plants closely con¬ nected with that species some of which are shown in Plate LXXXIV. Figures A-E are from specimens collected at Frankfort, Mich, in August 1913. They grew singly on the ground under beech and maple trees. They differ from the plants from Blue Mounds, Wis. shown in PI. XXX, in the scattered habit, less squamulose base of the stems and in the slightly shorter spores 5 — 6X9 — 11 /* instead of 6X12 — 14/*. They agree more closely than the others with the typical plants of Fries description the only noticeable difference is the less striate mar¬ gin of the pileus. The spore measurements also agree more closely with those given by Britzelmayr for Pholiota erebia, 4 — 6X10 — 12/*. The pileus was convex, subumbonate, slightly viscid, smooth, even or reticulated wrinkled, dark ferruginous brown when moist, becoming clay colored when dry, stem nearly equal, whitish, fibrous striate, veil apical, ample, membranous, Gills adnate, not crowded, grayish becom¬ ing rusty. The same plants were found also on logs of beech and maple. They often had the stems curved from position. The colors, characters and spore measurements were exactly the same as in the plants growing on the ground. Figure H shows one of these plants. Dr. W. S. Mof- fatt found similar plants on beech logs at Griswolda, Mich. He de¬ scribed the pileus as “honey color or pale tan, whitish on the margin” and gives the spore measurements as 4 — 5X8 — 9/*. These plants agree well with the description of Pholiota acericola Pk. N. Y. State Mus. Bull. 122 pp. 155-156. Figures F and G represent the plants found at Neebish, Mich, and mentioned in the previous article, p. 481 of these Transactions. They differ from both the Blue Mounds and Frankfort specimens in the more umbonate pileus, in the' distinctly striate margin of the pileus, in the rather more distant lamellae and in the distant annulus. The spores agree exactly in shape and size with those of the plants from Blue Mounds. 5 — 6X12—14/*. The distant annulus accords with the descriptions of Pholiota ombrophila. The Pholiota erebia group appears quite variable in Europe as well as in this country. I have already noted the caespitose forms with the base of the stems scaly and the forms with rugose wrinkled pileus both of which occur in this country. Britzelmayr illustrates a form which he considers a cross between Pholiota erebia and Pholiota togularis. He also describes several new species, Pholiota confoeder- ans, Pholiota praecavendus, Pholiota propinquatus etc. all of which are shown by their colors, characters and spore measurements to be very close to Pholiota erebia. His figures of Pholiota erebia are some¬ what larger and have thicker stems than the plants we have photo¬ graphed. It is however impossible to determine from the brief de¬ scriptions whether the variation in the group is similar to that among our plants. Edward T. Harper. 1164 Wisconsin Academy of Sciences, Arts, and Letters. EXPLANATION OF PLATES. Plate LXXII. Hypholoma sublateritium Schaeff. A. Cluster of mature plants. B. Young plants showing the veil. C. Young plants showing the cobwebby surface of the pileus. Plate LXXIII. Hypholoma perplexum Pk. A. Mature plant. B. Plant showing the attachment of the gills and the striate apex of the stem. C. Gill surface and hollow stem. D. Surface of pileus showing the umbo. Plate LXXIV. Hypholoma capnoides Fr. Cluster of mature plants. Plate LXXV. Hypholoma fasciculare Huds. A. Two mature plants. B. Young plants showing the appendiculate veil and fibers re¬ maining on the stem. C. Section showing gills and flesh. Plate LXXVI. Hypholoma . Plants in various stages of growth. Plate LXXVII. A. Hypholoma ambiguum Pk. Young plant showing smooth pileus, appendiculate striate veil, striate upper part of the stem, surface and bulbous base of the stem. B. Small plant of Hypholoma echiniceps Atk. showing surface of the pileus. C. Hypholoma lacrimabundum Fr. Young plant show¬ ing cortina like veil, surface of the pileus and of the stem. Plate LXXVIII. Hypholoma echiniceps Atk. A. Cluster of large plants. B. floccose edge of gills X 4. Plate LXXIX. Hypholoma velutinum Pers. A. Section showing flesh, gills, appendiculate veil and hollow stem. B. Cluster of young plants showing surface of the pileus and stem. Plate LXXX. Hypholoma candolleanum Fr. A. Striate apex of the stem X 4. B. Mature plant showing pileus and stem. C. Mature plant showing gill surface. D. Young plant showing acorn- shaped pileus and appendiculate veil. Plate LXXXI. Hypholoma leucotephrum B. & Br. A. Striate apex of the stem X 4. B. Large plant with thick shreddy stem, striate at the apex, gill surface. C. Young plants showing smooth stems, rugose wrinkled pilei and appendiculate veil. Plate LXXXII. Hypholoma cutifractum Pk. Plants in various stages of growth, showing splitting, cracking and peeling of the pileus. E. Young plant showing veil and section of the hollow stem. Plate LXXXIII. A. Hypholoma longpipes Pk. Two plants showing long slender stems with the base white floccose and the narrow pilei, taken from dried plants. B. Dried specimen of Hypho¬ loma candolleanum showing thin imbilicate apex of the pileus. C. Fully expanded white plant of Hypholoma incertum Pk. Harper — Hypholoma. Trans. Wis. Acad. Vol. XVII. Plate LXXII. Harper — Hypholoma. Hypholoma sublateritium Schaeff. COCKAYNE — BOSTON Hyphgloma perplexum Pk. Trans. Wis. Acad. Vol. XVII. Plate LiXXIII. Harper — Hypholoma. COCKAYNE — BOSTON Hypholoma capnoides Fr. Trans. Wis. Acad. Vol. XVII Plate LX XIV, Harper— Hypholoma. COCKAYNE - BOSTON Hypholoma fasciculare Huds. Trans. Wis. Acad. Vol. XVII. Plate LX XV. Harper — Hypholoma. COCKAYNE — BOSTON Trans. Wis. Acad. Vol. XVII Plate L/XXVI Hypholoma Harper — Hypholoma. COCKAYNE - BOSTON Trans. Wis. Acad. Vol. XVII. Plate LXXVIX. B — Hypholoma lacrimabundum Fr., Form Hypholoma echiniceps Atk. C — Hypholoma lacrimabundum Fr. Harper — Hypholoma. COCKAYNE - BOSTON Form Hypholoma echiniceps. Atk. Harper — Hypholoma. Plate LXXVIII Trans. Wis. Acad. Vol. XVT Harper — Hypholoma. Hypholoma velutinum Pers. Trans. Wis. Acad. Vol. XVII Plate LXXIX Harper — Hypholoma. COCKAYN! •BOSTON Hypholoma candolleanum Fr. Plate LX XX. Trans. Wis. Acad. Vol. XYII. o Harper — Hypholoma, COCKAYNE - BOSTON Hypholoma leucotephrum B. & Br. Harper — Hypholoma. COCKAYNE - BOSTON Hypholoma cutifractum Pk Trans. Wis. Acad. Vol. XVII. Plate LX XXII. Harper — Hypholoma. COCKAYNE - BOSTON Trans. Wis. Acad. Vol. XVII. Plate LXXXIII. Harper — Hypholoma. A — Hypholoma longipes Pk. B — Hypholoma candolleanum Pk, C — Hypholoma incertum Pk. COCKAYNE — BOSTON Pholiota erebia Fr. Trans. Wis. Acad. Vol. XVII. Plate LX XXIV. Harper — Pholiota, COCKAYNE - BOSTON Smith — The Organization of the Colony . 1165 THE ORGANIZATION OF THE COLONY IN CERTAIN FOUR-CELLED ALGAE Gilbert Morgan Smith INTRODUCTORY. The arrangement of the cells in a few-celled coenobic colony presents several interesting problems. There are various pos¬ sible combinations of the cells of a colony composed of four cells arranged in a definite symmetrical structure. If the individ¬ ual cells are spherical ( isoaxial ), their arrangement may be either in a linear series, a plane or a pyramid. Colonies of isoaxial cells with the cells regularly occurring in a linear series QCCO Eigure 1. Diagrammatic representation of possible combinations of isodiametric cells in a four celled coenobe. Shaded diagrams represent those arrange¬ ments which are known to exist in nature. .are unknown. Tdtracoccus boiryoides West is a type of colony whose cells are in a plane; C oelastrum microporum N a eg. constitutes the only known form with axially undifferentiated ■cells arranged in the form of a pyramid. If the individual cells have each a long and a short axis (i. e. are heteraxial) , many more colony forms are possible. The range of possible symmetrical arrangements is shown in Text "Figures 2 6. All normal coenobic colonies are symmetrical. 1166 Wisconsin Academy of Sciences, Arts, and Letters . Certain colonies may lose their symmetry either because of vari¬ ation in the position of certain individual cells, or because of the abnormal growth of certain cells. All such cases should really be classified with symmetrical forms, since each deviation is for a single generation only and the irregular coenobe gives rise in the next generation to symmetrical colonies. Classifying the arrangement of the cells in the coenobe ac¬ cording to the relationships of their long axes, we may divide colonies first into those the long axes of whose cells are all in a single plane ( coplanar colonies) and those whose long axes are not in a plane ( noncoplanar colonies). In the coplanar series the long axes may all meet at some one point, if they are pro¬ jected far enough, in which case they are called concurrent. cof/mcr non/wrtif/e/ Figure 2. Possible combinations of the four cells of a coenobe in a concurrent coplanar series. Shaded diagrams represent those arrangements which are known to exist in nature. Nonconcurrent coplanar colonies are those whose axes will not meet, no matter how far they are projected. The coplanar con¬ current forms may be further separated into those the long axes of whose cells lie in a single straight line ( colinear), and those whose axes meet at a common center (nonparallel). No four-celled colonial forms are known with the coplanar concur¬ rent colinear arrangement of the major axes of the cells; but among the coplanar concurrent nonparallel forms may be men¬ tioned Pediasfrum Bormnum (Turp.) Mengh., Crucigenia tet- rapedia (Kirch.) W. & G. S. West, and Tet vast rum Staurogen- iae forme (Schroed.) Chodat. In coplanar nonconcurrent forms Smith— Tlu Organization of the Colony. 1167 the major axes may be either parallel ias in those shown in Text Figure 3, or nonparallel , as in the forms shown in Text Figure Figure 3. Possible combinations of the four cells of a coenobe in a parallel nonconcurrent coplanar series. Shaded diagrams represent those arrange¬ ments which are known to exist in nature. 4. Scenedesmus Meyen may he cited as an example of the par¬ allel noniconcurrent coplanar forms, while certain species of Crucigenia , as C. rectangularis (hfaeg.) Gay should be classi- Figure 4. Possible combinations of the four cells of a coenobe in a nonparallel nonconcurrent coplanar series. Shaded diagrams represent those arrange¬ ments which are known to exist in nature. fled among the nonparallel nonconcurrenlt coplanjar forms. In the noncoplanar series the axes all meet at a certain point { concurrent colonies), or they may not ( nonconcurrent colo- 1168 Wisconsin Academy of Sciences, Arts and Letters. niesl. For the concurrent forms there is only the single possi¬ bility shown in Text Figure 5 A. The nonconcurrent nonco- planar forms may have their axes either parallel (Text Figure 5 B) or nonparallel (Text Figure 6.) The only known par¬ allel nonconcurrent noncoplanar arrangemjent of the cells, is that r\ ebb A B Figure 5. Possible combinations of the four cells of a coenobe in a colinear noncoplanar or a parallel nonconcurrent noncoplanar series. Shaded dia¬ grams represent those arrangements which are known to exist in nature. found in Tetradesmus wiscominensis Smith. There are no algae which can be regularly classified as nonparallel noneoncurrent noncoplanar forms, although, as will be later pointed out, Scenedesmns acutus Meyen may at times have the cellular ar¬ rangement shown in the shaded portion of Text Figure 6. Arranging the possible combinations of the four-celled coeno- bie algae in a table, we have the classification given below. All of these possibilities are illustrated in Text Figures 1-6, the shaded diagrams representing the forms known to occur in na¬ ture. I Cells Isoaxial. 1 — Linear colonies. 2 — Plane colonies : Tetraccocus botryoides West. 3 — Pyramidal colonies: Coelastrum microporum Naeg. II Cells Ileteraxial. 1 — Coplanar series. A — Concurrent forms. a — Colinear colonies. b — bJonparallel colonies: Pediastrum Bory- anum (Turp.) Meng., Crucigenia (Kirch.) W. & G. S. West, Tetras- trum Staurogeniaforme (Schrod.) Chodat. Smith — The Organization of the Colony . 1169 B — Eonconcurrent forms. a — Parallel colonies: Scenedesmus acutus Meyen. b — Ebnparallel colonies: Crucigenia rectangularis (Eaeg.) Gay. - 2 — Eoncoplanar series. A — Concurrent forms. B— Eon concurrent forms. a— “Parallel colonies; Tetradesmus wisconsinensis Smith. b — -Eonparallel colonies. Figure 6. Possible combinations of the four cells of a coenobe in a nonparallel nonconcurrent noncoplanar series. Shaded diagrams represent those ar¬ rangements which are known to exist in nature. In the present paper a form from each of the main classes will be taken up and discussed both with respect to the varia¬ tions that normally occur in the coenobe, and to the modifica¬ tions that can be produced in the cellular arrangement by altered environmental conditions. 1170 Wisconsin Academy of Sciences, Arts and Letters. Systematic Discussion The nomenclature for the systematic classification of the Protococcales is one which offers considerable difficulty, even when the form under consideration isi fairly well known. The Brussels Congress of 1910, according to the report of Farlow and Atkinson (16), decided that Ralfs’ “British Desmidieae” (1848) should be taken as the starting point for systematic work in the Desmidiaceae. In this work Scenedesmus and Pediastrum are classed as Desmidaceae. Whether it was the intention of the Congress that we should base our nomenclature for the systematic classification of these two genera on this work is a matter that is perhaps open to question, but in my work I have followed Ralf’s classification. The species of Scenedesmus studied were S. acutus Meyen and S. quadricauda (Turp.) Breb. The classification of the species of Pediastrum is a more difficult matter. Although Ralfs recognizes' the danger of using the: arrangement of the cells in the colony as a specific character, his system of classification is, based both on the shape of the cell and on the number of cells in the colony. Little reliance can be placed on this latter char¬ acter, since there is great variation, within specific limits, in both the number and the arrangement of the cells. Certain species are described by Ralfs in which the chief determining character is the fact that the number of cells is not a multiple of two. These so-called species are merely abnormal forms. The species of Pediastrum that I have obtained in my cultures agrees more nearly with the description of P. Boryanum (Turp.) Mengh. than with that of any other species. Obser¬ vations were also made on Pediastrum tetras (Ehrenb.) Ralfs. Senn (85) has gathered together the widespread literature on Coelastrum and monographed the genus. LEis work is espec¬ ially authoritative in that he had several species under cultiva¬ tion and so was able to determine the variation in appearance within each species. The species that I have had in my cul¬ tures is Coelastrum microporum IN’aeg. Smith— -The Organization of the Colony . 1171 Only one species of Tetracoccus is known, according to 'Will© (43). Tike cell dimensions of the form that I have studied are well within the limits set by West (42). Tetradesmus wisconsinensis Smith was originally described from the same material that was used for the study reported in the present paper. Material and Methods The forms, work upon which is reported in the present paper, were isolated by the general method first used by Beyerinck (5), and later by Chodat and G-rintzesco (11'), Chodat (8) (9), Grintzesco (17) (18), Artari ( 1 ) (2 ) , and others. The medium used was. a 2.0 per cent Knop’s solution in 2.0 per cent agar. The tube containing the nutrient agar was melted in the usual manner, and then a drop of water contain¬ ing the algae was added. In practice I have found it better to add very small portions of water, even inoculating the melted agar with a sterile needle dipped in water containing the algae, rather than to use the ordinary method of successive dilutions. The agar is then poured into Petri dishes in the customary manner. The growth of bacteria in the medium is comparitivelv rap¬ id: the algal colonies grow very slowly. The rate of growth is influenced hv heat and light. Ward (40) has shown that direct sunlight kills many algae, hut that they grow luxuriantly in diffuse light. Grintzesco (18) also found that growth was faster when the cultures were exposed continuously to an elec¬ tric light than when they were exposed to daylight. The same author found 20 degrees centigrade to be an optimum temperature for the growth of Scenedesmus acutns. Under ordinary summer conditions, the algal colonies become visible as small green dots in from eight to twelve days. All algal colonies do not develop at the same rate, and I have usually found that the first colonies to appear were those of Chlorella and other simple forms. For this reason it is best to let the plate cultures stand twenty days before trying to isolate the 1172 Wisconsin Academy of Sciences , Arts and Letters. different species. This is especially true in the case of the Cyanophyceae. The algae do not form colonies of characteristic appearance so that the species cannot be determined by macroscopical exam¬ ination. I have not found a report by any investigator who was able to determine his alga before isolating it in pure cul¬ ture. In my attempt to isolate as many forms as possible, the determination of the species in plate cultures containing a mix¬ ture of forms has been very important. The method used was to cut out a colony from the agar with a sterile needle and mount it on a sterile slide and under a sterile cover glass. A microscopical examination could then be made and the species determined. In this manner two to three hundred colonies could be examined in a day and perhaps only twenty of them re¬ tained for further study, thus saving the time necessary to trans¬ fer all colonies to an agar slant and to allow them to grow be¬ fore determining the species. If the alga on the slide was a species that was desired for further study, it was plated again by removing the cover glass from the slide and mixing the crushed colony with a drop of melted agar. This melted agar was then transferred to a tube containing melted agar and the whole mass plated again. The disadvantage of this method is that there is a loss of time in waiting for the second Petri dish culture to grow, and a danger of infection from the various manipulations. There is un¬ doubtedly some chance for bacterial infection from the slide and also in transferring the colony to the melted agar, but this is small enough to be neglected. The distinct gain from this method is that in case the culture is slightly infected in the ori¬ ginal Petri dish, the replating is apt to separate the bacteria from the algae, while a slightly infected colony put on a agar slant would prove a total loss. The method described above is especially valuable in the case of the rarer algae. My results show a distinct saving in the total time required for manipula¬ tion by the method here described, but if one wishes to obtain a pure culture of an alga, irrespective of the particular species, Smith — The Organization of the Colony . 1173 the method of inoculation directly on the agar slant is to be preferred. There is more or less confusion in the use of the term “pure culture.” According to the usage of some authors, a pure cul¬ ture is one that contains only one algal species ; others under¬ stand it to be a culture of a single algal species that is also free from other organisms, including bacteria and fungi. To dif¬ ferential between the two I propose the term unialgal culture- to designate one which contains but a1 single species of alga, but which may contain other organisms. The term pure culture is- reserved for one which contains a single species of alga, and is- absolutely free from all other organisms. The second series of Petri dish cultures would then be unial¬ gal cultures. After allowing these cultures time to develop, single colonies are again lifted out and inoculated on agar slants. The colonies should be removed from these cultures as soon as they become visible. This work has usually been done under a Zeiss binocular microscope. The work should be done in a special room where transfers are made, since any infection is fatal at this stage. By this method very small colonies are obtained, and the smaller bacterial and fungus colonies, which would ordinarily be overlooked, can be seen. Almost all investigators who have worked with pure cultures have noted that algae develop faster in a medium containing a small percentage of glucose than one which does not. Ac¬ cordingly, a third series of cultures is made by inoculating an agar medium, to which has been added 1 per cent of glucose, with colonies from the unialgal cultures. This series is made on agar slants instead, of Petri dishes. There are two advan¬ tages in the use of this medium. The glucose favors the devel¬ opment of fungi and bacteria, so that, if there are any in the culture they will soon appear. At the end of three or four days the infected cultures can easily be separated from those that ap¬ pear to be pure. Tn general, in spite of all possible precautions, many cultures will be infected. For the inoculation of the unialgal cultures from the Petri dish, it is usually best to 1174 Wisconsin Academy of Sciences , Arts and Letters. make about a dozen cultures on glucose agar. As a rule, about half of the cultures are uncontaminated at the end of two weeks. In earlier experiments the third inoculation was made into a medium containing agar and a mineral solution only, but the development was very much slower and it was more difficult to separate the cultures that contained bacteria and fungi. The purity of cultures was determined at first by plating a sample of the culture in a nutrient medium which was known to favor the development of bacteria, to see whether or not there were any bacteria present. Later this was found unnecessary, since all infected glucose-agar cultures are readily detected. Having obtained pure cultures, they can be preserved on the agar surface or in a liquid medium. I have preferred to keep iny cultures running in 200 cc. Erlenmeyer flasks containing about 50 cc. of the mineral solution to which 0.2 per cent of glucose has been added. This small proportion of glucose is better, since, as Artari has pointed out (3), the algae are apt to degenerate in stronger concentrations of glucose. The algae used in this investigation, which were grown in pure culture were Scenedesmus acutas Meyen, Scenedesmus guadricauda (Turp.) Breb., Dactylococcus infusionem Haeg., and Tetradesnvus unsconsinensis Smith. These algae were all collected from. Murphy’s creek where it flows past the Dane county fair grounds near Madison, Wisconsin. The unialgal cultures of these forms were obtained in August 1911, and the pure cultures in September of the same year. The observationsi on Pediastrum Boryanum (Turp.) Mengh. and Coelastrum microporum ISTaeg. were made on material in unialgal culture. These were obtained in unialgal culture in January 1913. The observations on Pcdiastrum tetras (Ehr.) Balfs, and Tetracoccus botryoides West were made on these organisms as they occurred mixed with other algae in nature; as yet I have not succeeded in obtaining them in unialgal or pure cul¬ ture. The material was collected from Murphy's Creek, and the Dane county fair grounds, in the summer and fall of 1912, Smith — The Organization of the Colony . 1175 and the spring of 1913. Drawings were not made at once, but the material was preserved in a 10 per cent solution of Am arm’s copper-lacto-phenol. The Isodiametric Series Although, from the morphological standpoint, the sphere is the simplest possible form that a cell may assume, this shape is found in but few cioenobie algae. This may be because the formation of autocolonies within the mother cell wall is a con¬ siderable advance over the condition of free-lying spherical cells, and because along with the development of this autocolonial habit there has gone almost necessarily an axial differentiation of the individual cells. It is true that certain of the Volvo- eales have symmetrical colonies composed of spherical cells but since these cells have a certain axial differentiation they have been excluded from consideration in this paper. Two coenobic algae with isodiametric cells are Tetracoecus botryoides West and Coelastrum micro porum Xaeg. Tetracoecus, A Plane Isodiametric Colony In Tetracoecus botryoides West, which is taken as a type of coenobe whose cells lie in a single plane, my observations were made on material as it was collected from a small, sluggish stream near Madison, Wisconsin. There is little variation in the arrangement of the cells when they are found in a single plane. They may be arranged either so that the outline of the coenobe is rectangular (Fig. 1 A, Plate LXXXV) or so that it is diamond shaped (Fig. 1 B). This difference in outline depends upon the manner in which the cells of the coenobe come in contact -with one another ; sometimes there is a small open space in the center of the colony (Fig. 1 A), in which case the colony is rectangular in outline, some¬ times two opposite cells of the colony are in contact with one another, and the remaining pair of cells are not in contact but are prevented from touching each other by the first pair (Fig. 1176 Wisconsin Academy of Sciences, Arts and Letters. 1 B), then the colony has the diamond shaped outline. All gradations between these two conditions are found. The cells in a single coenobe are all the same size ; but two coenobes may differ with respect to size of the constituent cells. This differ¬ ence results from differences in the age of the coenobe. Occa¬ sionally a colony is found whose cells are in two planes forming a pyramid with a three celled base and one cell for the apex (Fig. 1 C). These differences in colony form are due to differences in the manner of origin of the cells of a colony. According to West (42) multiplication takes place by the formation of four daugh¬ ter cells within a mother cell wall, the division of the mother cell contents being in two planes. This gives rise to the rectang¬ ular type of colony. In the formation of the pyramidal colony apparently the cleavages that formed the daughter cells have been not in two planes but in three. This pyramidal posi¬ tion of the cells suggests that the cleavage of the mother cell was not simultaneous but progressive. This view is strength¬ ened by our knowledge that progressive cleavage takes place in such nearly related forms as Scenedesmus acutus, S. quadri - cauda , S. obtusus , and Tetradesmus vnsconsinensis according to my results (36) (37) ; in Dictyosphaerium pulchellum Wood according to Senn (35) ; and according to Braun (7) in Pedi- a strum granulatum Ktzg. G. S. West (41) and W. West (42) emphasize the fact that there is always a division of the mother cells of Tetracoccus into four daughter cells. According to my observations, eight daughter cells are sometimes formed. Thus in Figure 1, Plate LXXXV, we have the remains of a mother colony showing two old cells and the daughter colonies derived from the divi¬ sion of live other cells, the old cell walls of the latter being still present. One of the cells of the mother colony has apparently been lost. Unfortunately this alga was not obtained in unial- gal culture, so that the percentage of eight-celled colonies formed could not be determined. It is probable that, as in Pediastrum. ,, Coelastrum, and Scenedesmus , the colonies with the larger num- Smith — The Organization of the Colony . 1177 her of cells are formed only under conditions very favorable for growth. Coelastrum, A Pybamidal Isodiametbic Colony. The cells of Coelastrum microporum ISTaeg. are not always perfectly spherical ; but since the axial differentiation is usually very slight and often quite negligible, it seems best to classify this species among those with isodiametric cells. Under ordinary conditions the cells of a Coelastarum colony are approximately symmetrically arranged, the cells being in tiers, each tier in one half of the colony corresponding to a tier of the same number of cells in the other half. In an eight-celled colony there are two possible symmetrical arrange¬ ments. The cells may either be in four tiers, the respective tiers containing 1—3 — 3 — 1 cells, or the cells may be in two tiers of four cells each. Both of these arrangements were found in the eight-celled colonies in my cultures. Figures 2, 6, and 13, Plate LXXXV, shows colonies whose cells are arranged in two tiers of four cells each. Figure 6 shows the most perfectly symmetrical colony, the small central intercellu¬ lar spaces being of the same size in the two tiers. In the colonies of this type shown in Figures 2 and 13 the cells in one tier are much closer together than are those in the other tier. Figure 2 shows a colony in which the tier of cells with the small intercellular space is below and the upper has a large in¬ tercellular space. Tn Figure 13 this arrangement is reversed. It may very well be that in these two cases we are not dealing with eight celled coenobes but rather with fragments of sixteen- celled colonies. The coenobes with the I — 3 — 3 — 1 arrange¬ ment of the cells have a single small central intercellular cavity (Fig. 10). This figure also shows the symmetrical nature of the 1 — 3 — 3 — 1 type of colony. In sixteen-celled colonies there are five possible symmetrical arrangements of the cells in tiers. There may be two tiers, each of eight cells ; or four tiers containing varying numbers of cells. The possible arrangements in four tiers are 1 — 7 — 7 — 1, 1178 Wisconsin Academy of Sciences, Arts and Letters. 2 — 6 — 6 — 2, 3 — 5 — 5 — 3, and 4 — 4 — 4 — 4. Of, these possible arrangements only two were found in my cultures, those of 3 — 5—5 — 3 and of 4 —4—4 — 4, the latter being much the more abundant. This latter arrangement is shown in the drawing of Senn (35). When the cells are so arranged that the differ¬ ent tiers contain respectively 3 — 5 — 5- — 3 cells (Fig. 7), there is a single large central cavity. This peripheral arrangement of the cells about a central cavity was first noted by Pringsheim (34). In my opinion, the variation in cellular arrangements in the eight and sixteen-celled colonies of C oelastrum . depends upon variations in the manner of cleavage of the mother cell which formed these colonies. Pringsheim (34) held that this cleav¬ age is simultaneous : Senn (35) is in doubt as to the method of cleavage but thinks that it is probably progressive. It seems to me highly probable that Senn is correct. Instances of prog¬ ressive cleavage among Protoccocales nearly related to Coelast¬ rum have been cited above in connection with the cleavage of ' T etracoccus . The 4 — 4 arrangement in the eight-celled coenobe would be brought about by three successive divisions at right angles to one another. The 1 — 3 — 3 — 1 arrangement in the eight-celled coenobe may result from the fact that the tertiary divisions are not in the same plane, but that within each half of the original mother cell one of these planes is at right angles to, and the other parallel to the primary cleavage plane. The different arrangements found in the sixteen-celled coenobes may be accounted for by similar variations in the manner of forma¬ tion of the cleavage planes. This variation in the planes of cleavage is of more import¬ ance in forms which produce nonmotile autospores than in those which have motile spores. In Pediastrum and Hydro- didyon it matters little in what planes the cleavage takes place, since it is the movement of the swarm spore which determines the position of the cells in the adult colony. However, Harper (20) holds that the manner of cleavage in the formation of the swarm spores of Hydrodidyon is one of the determining factors Smith— The Organization of the Colony . 1179 in their arrangement when they come to rest. In Scenedesmns and Tetradesmus there is a very slight movement of th© auto- spores duei to their elongation. Those of Tetracoccus and Coelastrum do not move but round up and develop into mature cells in situ. For this reason the manner of cleavage in Tetra¬ coccus and Coelastrum is the chief factor determining the shape of the adult colony. At times the cells of the coenobe are arranged, not in the form of a more or less hollow sphere, but in that of irregular plates (Fig*. 4), or in an irregular, somewhat branching plate¬ like mass (Fig. 17). Strictly speaking the cells, in such a case, do not lie in a plane like those of Pediastrum , but consti¬ tute a partially flattened mass some of whose cells are above or below the others. Such a condition suggests that, in making a mount of the Coelastrum material, the pressure of the cover- glass may have crushed and flattened a coenobe of regular form. I do not believe this to have been the case, since I have observed these flattened masses in material that was carefully lifted from the culture by means of a platinum loop and then examined in a hanging drop. In some of these irregular cell masses there has plainly been a rupture of the tender gelationous processes that ordinarily hold the cells of the coenobe together (Fig. 17) ; in others (Fig. 4) the remains of such processes cannot be seen. There are two possible explanations for these variations from the ordinary arrangement of the cells of the coenobe. In Stigeoclonium Livingston (25) (26) (27) (28) (29), investi¬ gating the cause of the change from the filamentous to the “Pal¬ in ella” condition, finds that it may be due to an increased os¬ motic pressure of the nutrient solution, or that it may be in¬ duced by the toxic action of certain compounds, either organic (as bog extracts) or inorganic (as copper salts). The change in the arrangement of the cells of Scenedesmns acutus from a symmetrical coenobe with the cells all in one plane to an in¬ definitely branching system, which has been called the “Dactyl- OGoecus stage” by Grintzesco (17), might well be cited as an¬ other instance of this kind, but I wall show in the discussion of 1180 Wisconsin Academy of Sciences , Arts and Letters. my results on Scene desmus acutus that this change really does not take place as Grintzesco supposed. Senn (35) does not re¬ port these irregularly branching colonies in Goelastrum, but he does describe a separation of the colonies into individual cells. This breaking down was especially abundant in cultures poor in oxygen in Senns cultures. I have also found isolated cells quite frequent in certain of my cultures. Possibly the varia¬ tion which I have described in; the form of the colony of Coel- astrum is due to some similar cause, hut I am of the opinion that neither a deficiency of oxygen nor a change in the osmotic pressure of the nutrient solution, is the chief factor involved. A more likely explanation is that of a mechanical rupture of the colony. It is well known that at times the oxygen formed in photosynthesis does not leave the vicinity of the plant but adheres it to the form of bubbles, large enough to be seen with the naked eye. This phenonomon may be observed both in filamentous algae and in aquatic seed plants such as Elodea. I have been able to demonstrate the presence of oxygen bubbles in connection -with Coelastrum, and believe that they are the cause for the rupture of the colony. The oxygen given off by the cells probably accumulates in the form of small bubbles both outside and inside the colony. Bubbles given off on the inside might very well coalesce and form a single large bubble, which when large enough would cause the rupture of the colony and the appearance of the “Palmella” condition above described. Several groups of four cells were observed in my cultures. Some of these are complete unbroken four-celled colonies (Pigs. 11, 14, 15), others are undoubtedly fragments of larger colon¬ ies (Pigs. 5, 8, T6). In the four-celled groups, which seem to be complete colonies, the cells are arranged in the form either of a plate (Pigs. 11 & 15), or of a pyramid (Pig. 14). The latter arrangement is less frequent. This variation in arrange¬ ment, like that observed in the four-celled Veltracoccus colony, is due to variations in the cleavage planes by which the daught¬ er ceils were formed. Smith— The Organization of the Colony . 1181 The, Axially Differentiated Series. COPLANAR FORMS. Pediastrum, A Honparallel Concurrent Colony. In Pediastrum the number of cells in the colony is normally •a multiple of two. Coenobia containing 8-32 cells are com¬ monest in Pediastrum Boryanum , while in Pediastrum tetras the number varies from 4-1 6. In P. Boryanum , however, the formation of coenobia that contain only four cells is by no means an abnormal condition. The number of cells in the eoenobium is largely dependant on the vitality of the mother cell which produced it. When the alga is growing under favor¬ able conditions, the coenobia formed contain comparatively large numbers of cells ; when environmental conditions are not so favorable, the number of cells is smaller. This same vari¬ ation in the number of cells in the coenobe, coincident with changes in external condition, has been observed in Scenedes- mus. In cultures of Pediastrum Boryanum that have been running for two weeks four-celled colonies are of rare occur¬ rence, but in the same cultures two months later four-celled colonies are comparatively abundant. When the alga is grown on a firm substratum, as an agar slant, many four-celled coeno¬ bia are present. The occurrence of four-celled colonies in na¬ ture is quite rare. In Pediastrum tetras, which I have ob¬ served only as it occurred in nature, four-celled colonies are quite abundant. Chodat and Huber (12) have cultivated P. Boryanum in different concentrations of Haegeli’s solution. They find that the more concentrated solutions inhibit the formation of swarm spores, and that the cells are apt to be arranged in rounded masses resembling Coelastrum. The swarm-spores become rounded forming cells which resemble hypnospores, the hypno- spores having a wall which, at times, may bear horns. Figures 27-30, Plate LXXXYI, show variations in arrange¬ ment in four-celled coenobia of Pediastrum tetras . The normal 1182 Wisconsin Academy of Sciences, Arts and Letters. condition is that shown in Figures 2 8. and 30, where the cells are arranged in one plane about a common center. The cells may all be in contact with one another at a central point, or there may be a small rectangular space with which they are all in contact (Fig. 30). In other cases a pair of cells opposite one another are in contact, and the other two cells are separated by the first pair (Fig. 28). This last described arrangement makes the outline of the coenobe more diamond-shaped than in the two former cases. Sometimes the cells are not all in the same plane (Fig. 29), but one cell is superimposed upon the others. In this the cellular arrangement is not coplanar concurrent but non¬ concurrent nonpara Ji el noncoplanar. That these irregular col¬ onies are abnormal is shown by the differences in the size of the cells (Figs. 27 & 29). When the cells are all of the same size the arrangment is nearly always regular; when they are not of the same size, the arrangement is irregular. These ir¬ regularities in size and arrangement suggest that the swarm- spores were not all as vigorous or as healthy, as those which formed the colonies of regular shape, and that, as a result of their more or less pathological condition, they were unable to arrange themselves in the normal position. Since Pediastrum Boryanum was obtained in unialgal cul¬ ture, the variations of the four-celled coenobes could be easily studied. The variations, in the case of P. Boryanum , may be either in the shapes and relatives sizes of the cells, or in their spatial relationships. As in P. tetras, a dwarfing of certain cells of the colony sometimes occurs, with a consequent irregu¬ larity in the arrangement of the cells (Figs. 24, 25). Nothing brings out more strikingly the fact that the cells of a colony are independent of each other, at least as far as nutrition is concerned, as the occurrence of colonies one or more of whose cells are dwarfed and wholly abnormal in appearance. An¬ other equally striking variation is that the “horns” of the cells in one colony differ in length from those of the cells in another colony. All conditions, from that of colonies whose cells have quite long “horns” (Fig. 18) to that of colonies whose cells Smith — The Organization of the Colony . 1183 have very short “horns” (Fig. 38), or wholly lacking (Fig. 32), may be found in a single uniaigal culture. One not familiar with the history of the cultures would say that Figures 34 and 35 represent different species. Such is not the case, however, since both of these colonies came from the same uniaigal cul¬ ture. System atists have not paid enough attention to this variation in the length of the horn, which is usually correlated with variation in the shape of the cell. The length of the horns is usually the same for the cells of a single coenobe, but Figure 21 shows a colony one of whose cells has quite long “horns,” the other cells have short “horns” and are polyhedral. This variation was not found in four-celled ceonobia, but was found several times in coenobia containing more than four cells. The systematic bases for the classification of species of Pedi- astrum are rather indefinite, but probably the surest points for the classification of species are the shape of the cells and the size of the horns. As a result of my cultures, I am convinced that a good many variations that have been considered marked enough to warrant specific differentiation are merely normal variations within the limits of another species. The exact cause of this variation I am unable to explain. A possible explanation is that differences in the length of horns of differ¬ ent coenobia are due to somewhat the same environmental con¬ ditions that cause different cells in a coenobe to form daughter colonies with different numbers of cells. This explanation, however, does not account for the variation in length of horns in different cells of the same coenobe. This variation in the length of horns is another proof of the independence of the individual cells. In cultures of Pcdiastrum Boryanum grown on agar slants there are more irregularities than in those grown in a liquid medium. In the former, the cells of the coenobe are rarely all in one plane, but are usually in a more or less flattened mass. These colonies fragment easily, so that in examining them in a mount in water one is sometimes in doubt as to whether one is examining a normal four-celled coenobe or a four-celled frag- 1184 Wisconsin Academy of Sciences , Arts and Letters. ment of a larger colony. Ordinarily the cells of four-celled colonies, or fragments of larger colonies, are in a plane but the long axes of the cells have no definite relationships (Figs. 20, 23, 25, 26, & 31). On the other hand, the cells of coenobia of more than four cells grown on agar slants are usually not in one plane but in an irregular mass When the culture medium is a liquid, the cells are more likely to be regularly arranged. In four-celled coenobia hav¬ ing the regular nonparallel concurrent coplanar arrangement,, there are the same differences as to the contact of the cells at the center of the colony that were described for Pedistrum tetras (Figs. 33-35). All gradations between the condition shown in Figure 33 and that in Figure 35 can be found. At other times the arrangement shown in Figure 33 is so exagger¬ ated that the nonpairallel concurrent coplanar arrangement is entirely lost, and the cells are arranged in an alternating man¬ ner that approaches the parallel nonconcurrent coplanar struc¬ ture found in Scenedesmus (Fig. 19). In comparing Figures 19 and 33 it should be borne in mind that this classification is based on the position of the long axes of the cells, and while there seems to be no great difference between these two colonies on a casual examination, the analysis of the relationships of the long axes show3 there is a marked difference. In still other cases, the cells are not at all in the same plane but one or two of them may be in a different plane from that of the other three or two. The cells that are not in the same plane may either be parallel to> the plane of the coenobe (Figs. 26 & 38), or in a plane at an angle with the plane of the coenobe (Figs. 18 & 37). Occasionally the cells of the coenobe have a regular- concurrent non coplanar arrangement (Fig. 36) so that the colony might easily be taken for one of Sorastrum rather than Pediastrvm, did we not. know the history of the particular colony under observation. Sometimes the cells form a linear series, with the cells all in one plane (Fig. 25), or in different planes (Fig. 22). Harper (21) has given an explanation for this variation in Smith — The Organization of the Colony . 1185 the cel] ul ar arrangement of Pediastrum . He believes that all swarm-spores are morphogenetically equivalent ; and that the dev¬ elopment of the horns is determined by cellular interaction. The arrangement of the cells in the form of a symmetrical coenobe results when the swarm-spores possess the normal motility ; hut when the vitality of the swarm-spores is diminished, as in old cultures in which the general vitality of the alga is lowered, or in cases where the motility of the swarm-spores is hindered by unfavorable conditions, such as the lack of water on an agar slant, the swarm-spores do not reach a regular symmetrical ar¬ rangement before they cease moving, the result being the forma¬ tion of an irregular colony. Practically all deviations from the normal, in the arrangement of the cells, may be accounted for by the failure of the swarm-spores to assume the regular ar¬ rangement before the completion of the period of swarming. Scenedmmus, A Parallel Nonconctjrrent Colony Scenddesmus acutus . Several investigators have studied the effects of external con¬ ditions upon the shape of the colony and of the individual cells in this form. The species has been studied in pure culture by Beyerinck (5), Grintzesco (17), Chodat (9), Tischutkin (38), and Artari (3) ; and in unialgal culture by Chodat and Malines- Go (13) (14), Artari (4), and Senn (34). Chodat and Malin- esco describe a remarkable series of transformations. At one stage there are individual cells which resemble those of Pleuro- coccus, at other times of A nki&trodesmus ( Raphidium) , and at still other times branching systems of cells which resemble those of Naegeli’s Dactylococcus. This statement has been somewhat modified by Chodat (9) in a more recent publication, but not wholly abandoned. Senn (35) stated, as a result of his obser¬ vations, that Scenedesmus colonies could not be changed into other forms by varying the cultural conditions. When the alga was grown in water half saturated with carbon dioxid or oxygen the colonies separated into individual cells, but did not take on the chain-like arrangement of Dactylococcus. Nutritive solu- 1186 Wisconsin Academy of Sciences , Arts and Letters. tions of different concentration had no effect on the form of the colony, but they did affect the individual cell, since Senn found the stronger the solution the more nearly spherical were the cells. Artari (4) studied Dactylococcus infusionum ISTaeg., as a separate form and did not obtain Secenedesjnus-like colon¬ ies, although he grew the alga under various conditions. One of the forms Beverinck worked with in his first pure cul¬ tures (5) was Scenedesmus acutus. Beverinck found that an abundance of organic food material cause the cells of S. acutus to lose their acicular shape and become more nearly spherical. He makes no mention of the formation of chain-like colonies. The cellular arrangement of Scenedesmus acutus underwent considerable modification in Grintzesoo’s pure cultures. He describes three different development phases. There may be the ordinary Scenedesmus coenobe of 2, 4, or 8 cells, all arranged in a single plane. At other times the cells exist singly, the indi¬ vidual cells resembling Ankistrodesmus (Baphidium). Again the cells are arranged end to end in the form of small branching chains of cells. An alga with acicular cells arranged end to end in a branching flament has been given the name of Dactylo¬ coccus infusionum by Haegeli (32). Grintzesco believes that the branching colonies he obtained in his cultures are wholly identical with the Dactylococcus infusionum of Haegeli. He therefore concludes that Dactylococcus infusionum is not a spe¬ cific form but merely a1 growth condition of 8. acutus. He finds that solid media, as agar or gelatin combined with a nutri¬ ent mineral solution, hinders the formation of the plate-like eoenobes of Scenedesmus but favors the formation of the Dacty¬ lococcus condition instead. When the alga is grown in a li¬ quid medium the ordinary eoenobes are formed in the first few days, but when the cultures are some weeks old they begin to have the cells arranged end to end in branching chains. If material forming chains of cells in an old liquid culture be put in a fresh liquid medium there is a return to the formation of the plate-like colonies for a while. He considers the Dactylo¬ coccus condition an adaptation for increasing the surface for res¬ piration when the medium is poor in oxygen, or rich in mineral matter. Smith — The Organization of the Colony. 1187 In my experiments I have grown Scenedesmus acutus under a variety of conditions and have been able to cause the dissocia¬ tion of the cells of the coenobe, to some extent, but have never obtained a cellular arrangement resembling the Dactylococcus condition found by Grintzeseo. Cultures have been kept under observation for nine months and at the end of that time many plate-like colonies were present, and although some isolated cells appeared there was not the slightest tendency toward the forma¬ tion of chains of cells. On the other hand, an alga was also isolated in the summer of 1911 that gave beautiful chains of cells with the regular Dactylococcus infusionum arrangement. Photomicrographs of this alga are shown on Plate XOX. Changes in the cultural conditions of this alga cause a cessation of the chain formation and a breaking down into isolated cells, recalling the ‘'B,aphi- dium” stage of Grintzeseo (Pigs. 133 and 134). There is never a formation of plate-like colonies. A slight approach to this may be found at times where two or three cells lie side by side but these cannot be regarded as regular Scenedesmus acutus coenobes (Figs. 130, 134-136). Under certain conditions the arrangement of the cells in a polygonal meshwork suggests Hy- drodidyon (Figs. 138-141), but these polygons never form a closed net as do the cells of Hydrodidyon. As a result of the work of Grintzeseo, West (41), Oltmanns (33), and Wille (43), abandon the Dactylococcus infusionum of Xaegeli and treat it as merely a physiological stage of Scenedesmus acutus. My observations show that the two species are distinct, both of them having a constant form, and that one never gives rise to the other. Comparing the coenobia of Scenedesmus , in a culture con¬ taining only the descendants of a single colony, more or. less variation will be found. That the number of cells in a colony varies from 2 to 16 is well known. The earlier systematise, Kuetzing (23) for example, were inclined to consider the four and the eight-celled colonies as belonging to different species, but this view is no longer held. It is generally agreed that en¬ vironmental conditions cause this variation in the number of 1188 Wisconsin Academy of Sciences, Arts and Letters. cells in the colony, the four-celled coenobes being much more common when the environment is less favorable. In colonies that have come from a common ancestry, as those in a pure culture, and which have been kept under the same cultural conditions all the time, there is considerable variation. The most striking difference is that the cells may be arranged in a linear series (Text Figure 7 A) or in an alternate or zig¬ zag arrangement (Text Figure 7 B). Associated with this variation in cellular arrangement is an eccentric arrangement of the pyrenoid. ture in 0.1% Knop’s solution, Figs. B & C from cultures in 1.0% Knop’s solution. When the cells have the alternate arrangement the pyrenoids are in, an alternate eccentric position, while when the cells are in a linear series the pyrenoids are eccentrically placed two by two. Besides these two general types there is a third which does not agree with the distinguishing character of the genus as described by Be Toni (39). Scene - desmus cells similar to those shown in Text Figure 7 C would not come under De Toni’s description (p. 563) ; “ . . . .cellulae . in seriam simplicem vel subduplicem lateraliter con- junctae.” This type has the long axes of the cells in two planes, the long axes of two of the cells having revolved through an arc of 90 degrees. This type is quite rare and may sometimes con¬ sist of only three, cells (Fig. 42 A &B, Plate LXXXVXI) in¬ stead of the usual four. This arrangement may possibly he considered an extreme case of the deviating type shown in Figure 45. Smith — The Organization of the Colony . 1189 Petri dish cultures were used to determine whether these dif¬ ferent types of coenobe would give rise to the same type of coen- obe. Here each colony in the agar medium is the descendant of a single coenobium and microscopical examination shows that the two common types of coenobium are always present. The alter** nate arrangement is most noticeable in Scenedesmus acutus, al¬ though found in S. obtusus Meyen and S. quadricauda . I have also obtained S. obtusus in pure culture and find that Collins (15) is perfectly justified when he says that the variety alter nans (Reinsch) Hansg. of this species is “merely a form, hardly worthy of a name.” In 8. quadricauda the alternate arrange¬ ment of the cells is the least pronounced of the three species studied. That a change in the composition of the nutrient medium does not affect the general arrangement of the cells in the coeno¬ be, although it may affect the individual cells, has been shown by Beyerinck (5) and more fully discussed by Serin (35). Col¬ onies grown in 0.1 per cent and 1.0 per cent Knop’s solution show both the linear and the alternate arrangement of the cells but there is a marked difference in the shape of the individual cells. (Compare Text figures 7 A and 7 B). When certain or¬ ganic compounds, as glycerine or glucose, are added to the nutri¬ ent solution there is a marked abnormal development of the individual cells, and a consequent abnormal appearance of the coenobe, but the fundamental axial relationships remain the same. Many of the abnormalities occurring under these con¬ ditions have been figured by Chodat (9). To; explain them he says that (p. 92), “the greater part of the forms obtained are accidental, that is they are the result of an unequal growth pro¬ duced by premature germination of the autospore within the interior of the mother cell.” Livingston (25) (26) (27) (28) (29) studied the cause which produces a change from the fila¬ mentous condition of Stigeoclonium to the “Palmella” condi¬ tion, where the cells are approximately spherical instead of be¬ ing cylindrical. In his earlier studies he considered osmotic pressure to be the sole controlling factor, since when the osmotic pressure of the medium is above a certain point the cells change 1190 Wisconsin Academy of Sciences, Arts and Letters. from cylindrical to spherical. Later he found that culture media with low osmotic pressure but containing traces of toxic substances, as copper or silver salts (27), or certain bog extracts (28), produced a change from the filamentous to the “Palmel- la” condition. By growing Scene desmus in mineral solutions of different concentrations I have also found that with the increase in the concentration there is a tendency for the cells of the coenobe to become spherical, this tendency being much more marked in Scenedesmus quadricauda than in S. acutus. In S. acutus I dp not have the cells approaching so closely to the spherical as Senn (35s) finds them. I have also found that in the more concen¬ trated solutions the cells are much more apt to be abnormally shaped. The different forms produced in the concentrated solu¬ tions by S. acutus are shown in Plates LXXXYII and LXXXVIII, the colonies of S', quadricauda grown under the same condition in Plate LXXXIX. In both of these algae there are two classes of malformations. One class consists of irregularities in the individual cells, mal¬ formations of this type being given in Figures 47, 60, and 61. Advanced cases of this sort lead to greatly distorted coenobia. In the other class there is almost a complete loss of the coordi¬ nate axial arrangement, although the cells of the coenobe re¬ main attached in an irregular mass. These abnormalities are especially abundant in colonies containng eight cells. It is al¬ most impossible to classify these abnormalities, as an examina¬ tion of Figures 48, 54, 55, and 41 shows. This general arrange¬ ment of the colony is comparable to the “Palmella” stage of Stigeoclonium, although the use of the term “Palmella” is per¬ haps hardly applicable to Scenedesmus. We have, however, the same sort of response to similar changes in extreme conditions that Livingston obtained with Stigeoclonium. The response is not so general, only occurring in isolated cases. The experiments show that external conditions cannot cause a change from one type of coenobe to another. There may be changes in the individual cells of the coenobe, or an almost com¬ plete inhibition of the development of the colony in its ordinary Smith — The Organization of the Colony . 1191 form;, but the general axial relationship® cannot be changed by external conditions. In another connection I have described the manner of forma¬ tion of the young colonies (37), suggesting that in the variation of the cleavage planes forming the daughter cells lies the chief cause for the variations in the cellular arrangement of the coe¬ nobe. The four daughter cells are formed by a primary trans¬ verse cleavage of the mother cell, this division being followed by simultaneous cleavage of the two daughter cells, at right angles to the primary cleavage plane. The four cells thus formed then elongate and become arranged in two tiers within the old mother cell wall. During the elongation of the daughter cells the planes separating them commonly become parallel to the long axis of the mother cell. In this way the linear type of colony is formed. At other times the planes of separation do not become parallel to the long axis of the mother cell but re¬ main at an angle to it. Under these conditions the cells of the coenobe will not have the linear arrangement, when they unroll, but the alternate arrangement. It is difficult to say why these separation planes become parallel to the long axis of the mother cell in some cases and do not in others. These cleavage planes vary considerably in the angle they make with the long axis of the mother cell and so as a result there are certain colonies of the alternating type that are much more pronounced than others. That the type of coenobe which will be formed can be pre¬ dicted before the liberation of the daughter colony is seen in cells just ready to liberate young coenobia (Figs 73-75, Plate LXXXVIII) . Figure 7 4 shows a cell thei contents of which will unroll into a coenobe whose cells are arranged alternately, while the cells of one of the young colonies in Figure 79 will form a linear series. All of the cells in a single colony do no produce the same type of coenobe but one cell may produce a coenobe in which the cells are arranged alternately, while the one next to it may produce the linear type of colony (Figs. 73 & 79). The colonies whose cells will be arranged in an irregular mass can also be determined at the time of the liberation of the young coenobe. Thus the young coenobe shown in Figure 69 will form a colony of the irregular type shown in Figure 59. 1192 Wisconsin Academy of Sciences, Arts and Letters . In connection with the normal cleavage of the cytoplasm cer¬ tain abnormalities in the manner of the formation of the second cleavage planes were described (37). In these abnormal cases the second cleavage planes are not formed at right angles to the primary cleavage plane, as is usually the case, but more or less parallel to the primary cleavage plane. When the daughter cells thus formed elongate and are liberated the colonies formed are similar to those shown in Figures 50 and 53. The extreme variation in cellular arrangement resulting from this abnormal cleavage is the rotation of one or two of the cells through an arc of 90 degrees so that the cells are in two different planes (Figs. 42 & 43). Figure 60 is due to another type of abnormality in cleavage. Here there has been the usual first cleavage into two daughter cells, but in the second clevage of these cells there has been the failure to complete the cleavage in one of them. The be¬ ginning of this cleavage is shown in the notch at the top of the central cell. In the maturation of the cell, the elongation, and the formation of two pyrenoids has taken place in the usual manner. The nuclei of this cell were not seen but it seems likely that such a cell would possess two nuclei. Figures 61 and 62 show three-celled coenobes in which one cell is much larger than the other two. Such abnormalities are probably duo to the complete inhibition of the second cleavage in one of the daughter cells. The liberation of the young colony from the mother cell wall is accomplished by the longitudinal splitting of the wall and the unrolling of the young colony. When the colony is first liber¬ ated the cells are not in one plane, as in normal mature coe- nobia, but in the form of a curved plate (Figs. 69, 73, 79, and 81). Usually after the liberation there is a growth of the coenobe so that the cells form a flat plate. Some colonies do not become flattened but remain curved during their entire ex- istance. All gradations may be found in mature colonies be¬ tween a flattened plate and one that is markedly curved (Figs. 86, 93-95). The cells of the colony are held together by a gelatinous material that forms the outer layer of the cell wall. Smith — The Organization of the Colony . 1193 Either on account of the lack of this material, or on account of a rupture of it during the liberation of the young coenobe, in certain colonies the cells are not completely united but there may be two halves of the coenobe that are only partly joined (Fig. 45). At other times the two halves of the coenobe may be completely united but these halves are at an angle with each other (Fig. 97). Briefly summarizing the causes for the variations occurring in the cellular arrangement of the four cells of Scenedesmm acuius we may catalogue them in the following manner: I. formal Variations. Variation in the elongation of the daughter cells caus¬ ing either the linear or alternate type of coenobe. II. Abnormal Variations. 1. Cellular monstrosities. 2. Irregularities in the formation of the second clevage planes. A. Formation of cleavage planes in unusual directions. Bi. Incomplete formation of cleavage planes. 0. Failure to form second cleavage planes. 3. Irregularities occurring in liberation of young colonies. A. Failure of colony to unroll completely and a resultant curved colony. B. Partial fragmentation of colony during liber¬ ation. I Scenedesmus quadricauda. There is the same normal variation in the arrangement of the cells of the coenobe of Scenedesmus quadricauda that there is in the coenobe of S. acutus, although in the former the linear type of colony is much more abundant that the alternate type. The alternating character of the cellular arrangement is not so sharply marked as is the case in S. acidus. In another con¬ nection I have pointed out that there is a difference between 1194 Wisconsin Academy of Sciences , Arts and Letters , the manner of cleavage of 8. acutus and 8. quadricauda (37). In the former there is a change in the position of the primary cleavage plane so that the second cleavage planes, which are formed at right angles to it, are laid down at varying angles to the long axis of the mother cell ; in 8. quadricauda the primary cleavage plane remains at right angles to the long axis of the mother cell. This causes the second planes, which are like¬ wise formed at right angles to the primary cleavage plane, to be formed parallel to the long axis of the mother cell. The elongation of the daughter cells is not always equal and when this does occur the alternating type of colony is formed. The number of horns in a four- celled colony varies. Norm¬ ally there are four, one at each end of the terminal cells, but sometimes horns appear on the central cells. On account of this variability in the position of the horns Kirchner (22) has described certain forms which De Toni (39) calls varieties, but which Collins (151 and Migula (31) consider forms un¬ worthy of varietal rank. Besides the form typicus Kirchner recognizes setosus , in which there are projections on some of the median cells; horrid, us, with projections on all cells, and abund ans , with projections on the middle as well as the ends of the terminal cells. Migula (31) also includes with these forms Naegeli (Breb.) Babenh., which is characterized by pear- shaped cells that are irregularly arranged. I have found all of these variations in pure cultures from a single strain. The occurrence of one or more horns on the middle cells of the coe¬ nobe ( setosus ) is much more common that horns on all of the cells (horridus), or more than two horns on the terminal cells (abundans). 1 was unable to isolate any of these forms in pure or unialgal culture, a fact which suggests that the pres¬ ence of more than four horns in the coenobe is a variation that persists for a single generation only and is unworthy of being named. The presence of horns on the median cells of the coenobe is of interest from the morphogenetic standpoint. At one stage in the reproduction of the alga there are four daughter cell 3 arranged lengthwise within the mother cell wall. This group Smith — The Organization of the Colony . 1195 of cells then unrolls so that they all lie in one plane. There are different combinations possible in the unrolling of these cells, so that a particular cell may he either terminal or median in the mature coenobe. I was unable to distinguish any horns on the cells of the young coenobe before the rupture of the mother cell wall, but have found stages similar to that which Senn (35) has figured, where he shows that the two cells lying next to the split in the mother cell wall form horns while the other cells do not. If the splitting should occur on the other side of the mother cell wall, the two cells that are the inner pair in the first case would be the outer cells and consequently deyelope horns while the other cells did not. Thus we have a totipotence of every cell similar to that which Harper (21) has described for Pedias- trum , where he finds every cell of the coenobe capable of form¬ ing spines and that only the marginal cells are able to do so easily, but that the inner cells of the coenobic plate form them when they can. The formation of horns in Scenedesmus quad - ricauda may well result from some interaction between the cells which is of the nature of a contact stimulus and response. As a result of the totipotence of the cells we have the stimulus causing horns to be formed on the median cells of the coenobe as well as the terminal cells. A much greater response to changes in external environment is shown by Scenedeismus quadricauda than S. acutus . This is especially the case where cultures are made in a nutrient solution of comparatively high osmotic pressure. All of the drawings in Plate LXXXIX, were made from colonies of S, quadricauda grown in 1.0 per cent. Knop’s solution to which T. O per cent, sodium chlorid had been added. The nutrient medium affects both the shape of the individual cell and the cells of the colony. In the individual cells monstrosities ap¬ pear more frequently than they do- in S. acutus. These mon¬ strosities are not so much in the 'form of abnormally shaped cells as in the form of giant cells. Xormally these cells are from 3-8 by 4-12 microns but in cells that have been grown in solutions of high osmotic pressure the cellular measurements 1196 Wisconsin Academy of Sciences, Arts and Letters . may reach 15 bv 20 microns. The shape of the cell varies from nearly spherical (Fig. 104) to ovoid (Fig. 103). The majority of the cells are ovoid. Chodat (9) has figured a large number of aberrant forms of Sce7iedcsmus quadricauda that were obtained chiefly on solid media, agar and gelatin, containing glucose, cane sugar, gly¬ cerine or some other organic compound. Some of his draw¬ ings show cells that are quite similar to what I have described, above for S. acutus , in that there has been the same sort of failure to complete the normal cleavage. He also finds that in some cells horns do not develop© in the usual manner, but thick buttons are formed instead. The cells bearing these but¬ tons are irregular in shape. Chodat finds that the outer gela¬ tinous covering of the cell wall may also be thickened, the covering showing a iamellated appearance in extreme cases. I have found that there is sometimes an inhibition of the formation of the characteristic horns. Some coenobia com¬ posed of giant cells have horns that appear quite normal (Fig. 114), while others have no horns, or merely a small nodule at the ends of the terminal cells (Fig. 99). There is considerable fragmentation of the coenobia in cul¬ tures in solutions of high osmotic pressure and isolated cells are quite frequent. These single cells are usually giant cells rather than those of normal size. The formation of the free cells is due to the failure of the coenobe to form the gelatinous material that binds the cells together. Senn (35) has already shown that in Scenedesmus there is an inhibition of cell di¬ vision in the .jsre concentrated culture media. These large cells in my cultures are filled with oil and an immense number of starch grains. Apparently the concentrated medium does not hinder the process of photosynthesis, but does hinder the assimilation of starch after it is formed. This increase in size may be due, to a certain extent, to the formation of large amounts of starch. Unfortunately material from cultures con¬ taining these large cells was not fixed and stained, so that I am unable to state the exact nature of the cell contents: but from the appearance of occasional giant cells in normal cul- Smith — The Organization of the Colony . 1197 tures, which have been fixed and stained and found to be bi- or tetranucleate, I am inclined to the view that the giant cells in question have more than one nucleus. If this be true then the more concentrated culture media do not inhibit the divi¬ sion of the nucleus but do inhibit the cytoplasmic cleavage that normally follows nuclear division. The excessive growth may then be a result of the maintainance of the nucleocytoplasmic relationship. In colonies composed of giant cells a cleavage to form young colonies was not observed. Besides causing a formation of giant cells, that apparently do not divide, the concentrated culture media also influence the shape of the colonies in cells that do divide. Some of the col¬ onies, usually those composed of smaller cells, have the normal cell arrangement (Fig. 114), although irregularities in this* arrangement may occur (Figs. 99 & 113). In these cases the cleavage of the cytoplasm takes place in the normal manner and then there is the elongation of the daughter cells to form the characteristic ovoid cells. After the maturation of these cells, liberation of the young colony and its unrolling is wholly nor¬ mal. In other cases the cleavage and maturation of the cells takes place as usual, up to the time of the liberation of the young colony from the mother cell wall, but then there is no unrolling of the young colony but the four cells remain within the mother cell wall (Figs. 101, 102, 108, 110). Again, the whole mass of cells is liberated from the mother cell wall, but there is no unrolling of the colony but the four cells have the parallel nonconcurrent noncoplanar arrangement that is char¬ acteristic of I Tetradesmus (Figs. 101, 112, 115). Some colon¬ ies are surrounded by the old mother cell wall (Fig. 106) but usually the wall is lacking (Figs. 112 & 115). These colonies are not necessarily all in the same plane but one or more colon¬ ies may be at an angle to the others (Figs. 101 & 115). Many colonies remain attached to the mother cell wall after liberation. This may persist for two or three generations so that masses of cells are formed (Figs, 101 & 108). This formation of irregular cell masses, which is accompanied by a change in the shape of the cells from the ovoid to* the more 1198 Wisconsin Academy of Sciences , Arts and Letters . > nearly spherical, is the nearest approach to a true “Palmella” condition that has been found in any of the forms studied. It is noteworthy that such a parenchymatous mass of cells is formed in response to exactly the same stimuli that Livingston used in his earlier work on Stigeoclonium (25) (26). ISToncoplanar Forms. } Tetradesmus, A Parallel Nonconcurrent Colony. Although when viewed from the standpoint of the classifica¬ tion of the relationships of the long axes of the cells, T&trades - mils is not very closely related to Scenedesmus, yet from the phylogenetic standpoint these two forms are very closely re¬ lated. This is especially true when Tetradesmus Wisconsin- ensis and Scenedesmus acutns are compared. I have shown (36) (37) that the manner of formation of the daughter colon¬ ies in these two forms is very similar, up to the point of the liberation of the young colony from the mother cell wall. At this point the young colony of Scenedesmus unrolls and the cells become arranged in a plate, while the colony of Tetradm- mus does not unroll but the cells retain the same relationship that they had within the mother cell wall. We should therefore naturally expect much the same varia¬ tions to occur in Tetradesmus as in Scenedesmus and this ex¬ pectation is realized. There is again the variation in both the individual cells and the arrangement of the cells in the coenobe. There is the same rounding up of the cells in con¬ centrated culture media that there is in Scenedesmus acutus . As in S. acutus the cells do not become completely spherical but retain their acute apices. The Tetradesmus cells are much more pointed at the apex than are cells of S. acutus when this rounding occurs (Fig. 118, Plate XO). Cells of coenobia grown in nutrient solutions of compara¬ tively low osmotic pressure also show variations from the normal. These irregularities may be either in the size or the shape of the cell (Figs. 116 & 117). The walls of the cell also show variations in that the end may form short blunt horns in some instances (Fig. 116). Smith — The Organization of the Colony . 1199 The variations occurring in the position of the cells in the coenobe correspond to the linear and alternate arrangement in the Scenedesmus colony. A plane passed through the ends of all of the cells is at right angles, (Fig. 125), or at an angle (Fig. 118), to the long axis of the coenobe. This variation in the arrangement of the cells is due to the same sort of vari¬ ation in cleavage that oecurrs in Scenedesmus acutus. In connection with the description of Tetradesmus (36) the statement was made that there was always four cells present. A very few cases have since been found of two- and three- celled colonies. The formation of the two-celled colony is due to the elimination of one series of cleavages. Figure 122 shows that there may also be a rotation of one of the daughter cells through an arc of 90 degrees. To explain such a change we must assume a change in the polarity of the daughter cell before the elongation takes place. Certain other abnormalities are connected with the liberation of the young colony from the old mother cell wall. One might expect that some of the colonies would unroll and take the form characteristic of Scenedesmus but this has never been found. The cells are ordinarily attached along the middle third of their length (Fig. 119) but sometimes the attachment is in the terminal third and the rest of the cell lie free (Fig. 124). Such an arrangement may be due to an arresting of the libera¬ tion of the young coenobe and a pressing together of the por¬ tion of the colony that has not been liberated. Eventually the colony becomes free but the unusual cellular arrangement persists. Discussion. The study of the variations occurring within the limits of any particular species naturally leads to a discussion of the doctrine of polymorphism. The historical side of the question has been thoroughly reviewed by both Grintzesco (17) and Chodat (9) and reference may be made to the work of these authors. The earlier view, expressed by Kiitzing (24), that there could be a change in algae as great as a passage from one 1200 Wisconsin Academy of Sciences , Arts and Letters. genus to another, has been more and more restricted until the recent polymorphists believe that- this variation is confined to a few species. The change in the concept of polymorphism has been due to more accurate methods of study, notable the application of the pure culture methods first used by Beyer inch (5). It is noteworthy that the most aggressive of the modern polymorphists, Hansgirg (19) and Borzi (6), did not use the method of pure cultures, and that Chodat, who began his work with cultures that were not pure (10) (13) (14), modified his views considerably (9) when he did apply this method. His latest extensive monograph deals largely with the variations in the cell that can be caused by changes in the culture medium. He concludes (p. 165) that there are certain algae which by their extreme variability merit the name polymorphs, if by this term one wishes to imply that a plant can present several different phases without changing its nature. Consequently one is able to some extent to defend the thesis that algae are polymorphic. But their polymorphism is the same order as that shown by many of the higher plants. As in the higher plants there are some that are quite plastic and others less so. Lotsy (30) has proposed (p. 177) the term Biaiometamor- phosis to cover those cases in which the form changes as a re¬ sult of changes in external conditions ; the variations in Seen &- desmus acutus described by Grintzesco (17) being a case of this type. To my mind the term, although cumbersome, is l etter than polymorphism, since the term has been used by many authors in many different senses. The latest view of Chodat (9) is more a concept of Biaiometamorphism than poly¬ morphism. In the biaiometamorphic results observed in my unialgal cul¬ tures, there has been little change in the cellular relationships but a considerable change in the structure of the individual cells. The variations occurring in the arrangement of the cells are chiefly dependant on the variations in the manner of cleavage of the mother cells. In the cells in which the auto- spores are not motile, or only slightly so. (Tetracoccus, Coelas- trum, Scenedesmus and Tetradesmus) there is a marked influ- Smith — The Organization of the Colony. 1201 ence in the variation of the cleavage of the mother cell on the position of the cells in the coenobe. When the autospores are motile (Pediastrum) there is little influence in the manner of cleavage of the mother cell on the arrangement of the cells in the colony, but the variations in the cellular arrangement are largely biaiometamorphic. The fact that these variations are not uniformly present in all of the colonies of a culture shows that a distinction should be made between variations in the external environment and changes in internal conditions of the cell. Possibly it would be better to distinguish between internal and external biaio- metamorphosis. External conditions can be varied but the internal conditions cannot be controlled and when variations are laid to changes in internal conditions we are using a phrase which gives us absolutely no concept of the actual processes in¬ volved. Since we have this great divergence in different coenobia that are all descendants of a single cell and which, at least in a liquid medium, have been kept under the same conditions of temperature, light, and chemical environment we must say that a greater importance, must be attached to internal that external conditions. The internal conditions in the cell are constantly changing and as a result the four cells formed from a single mother cell are not alike in internal condition and the colonies formed are not wholly alike. It is this constant change in the cell that is the main cause for whatever variation occurs in the process of reproduction. Summary. The arrangement of the cells in coenobic algae may be classi¬ fied conveniently according to the relationships of the cell axes. Pure cultures or uni algal cultures should be used for study¬ ing the variations occurring in any given species. The marked variation described by Grintzesco for Scene - desmus acutus was not found in my pure cultures. Changes in the environment produce changes in the indi¬ vidual cells of the coenobe (Biaiometamorphosis), but have small effect upon the special interrelationships of the cells. 1202 Wisconsin Academy of Sciences, Arts and Letters . The variations in cleavage of the mother cell are little af¬ fected by external conditions. [When the autospores are motile they are influenced by ex¬ ternal conditions through the influence on the motility of the zoospores. The variations occurring in the cultures of the algae studied are not sufficient to warrant any assumption of widespread polymorphism among the algae. I wish to express my thanks here to Professor Charles E. Allen for his kind criticism during the progress of the inves¬ tigation and in the preparation of the manuscript. BIBLIOGRAPHY. 1. Artari, A. ITeher die Entwicklung der griinen Algen unter Ausschluss der Bedingungen der Ivohlensaure- Assim¬ ilation. Brill. Soc. Imp. des Hat. de Moscou. H. S. 13: 39-47. 1899. 2. Artari, A. Zur Ernahrungsphysiologie der griinen Algen. Ber. d. dent. hot. Gesell. 19: 7-9. 1901. 3. Artari, A. Der Einfluss der Konzentration der Narhlos- ung auf die Entwicklung einiger griinen Algen. I. . Ja.hr. Wiss. Bot. JO: 593-6;13. 1904. 4. Artari, A. Lntersuchungen ueber Entwicklung und Sys- tematik einiger Protoeoccoideen. Bull. Soc. Imp. des Hat. de Moscou H. S. 6 : 222-262. 1892. 5. Beyerinek, M. IV. Culturversuche mit Zoochlorelleu, Ri- chengonidien und anderen niederen Algen. Bot. Ztg. JcV: 725-783. 1890. 6. Borzi, A. Studi algologici. Ease. I Messina 1883. Ease, II Palermo. 1895. 7. Braun, A. The phenomenon of rejuvenescence in Hature. Translated by A. Henfrey. Ray Society. London. 1853. S. Ohodat, R, Cultures pures d’algues vertes. de Ovanophy- cees, et de Diatomacees. Arch. sc. phys. et. Hat. Hist. Geneve. 65- 1904. Smith — The Organization of the Colony. 1203 9. Chodat, E. Etude critique et experiment ale sur le poly¬ morphisme des algues. Memoire publie a 1’ occasion du juble de ? Uni ver site de Geneve. 1909. 10. Chodat, B. On the polymorphism of the green, algae and the principles of their evolution. Ann. of Bot. 11 : 97-121. 1897. 11. Chodat, E., et Grintzesco, J. Sur les methodes de cul¬ ture pure des Algues vertes. Actes du Congr&s In¬ ternational de Botanique. 157-162. Paris. 1900. 12. Chodat, E., et Huber, J. Eecherches experimental sur le Pedistrum Boryanum . Bull. Soc. Bot. de Suisse. 5 : 1-15. ,1905. 13. Codat, B., et Malinesco, O. Sur le polymorphisme du Scenedesmus acutus Meyen. Bull. Herb. Boiss. 1 : 184-190. 1893. 14. Chodat, B., et Malinesco, O. Sur le polymorphisme du Eaphidium Braunii et du Scenedesmus caudatus Corda. Bull. Herb. Boiss. 1 : 640-643. 1893. 15. Collins, F. S. The green algae of Horth America, Tufts College Studies. 2: 79-480. 1909. 16. Earlow, W. G., and Atkinson, G. F. The botanical cong¬ ress at Brussels. Science. ±7. S. 32 : 104-107. 19,10. 17. Grintzesco, J. Eecherches experiment ales sur la morpho¬ logic et la physiologic de Scenedesmus acutus Meyen. Bull. Herb. Boiss. II. 2: 217-264, 406-432. 1902. IS. Grintzesco, J. Contribution a 1‘etude des Protococcalees. Ghlorella vulgaris Beverinck. Bev. Gen de Bot. 15: 1-19, 67-82. 1903. 19. Hansgirg, A. TTeber den Polymorphismus der Algen. Bot. Cent. -22; 277-406. 1885. 20. Harper, B. A. The organization of certain eoenobic plants. Bull, of the Univ. of Wis. Sci. Ser. 3: 279-334. 1908. 21. Harper. B. A. Morphogenesis in Pediastrum. Science. H S. 37: 385-386. 1913. 22. Kirchner, O. Algen in Cohn, Kryptogamenflora von Schlisien. Breslau. 1878. 1204 Wisconsin Academy of Sciences , Arts and Letters. 23. E/uetzing, F. T. Synopsis Diatomacearum. Linnaea. 8: 527-620. 1833. 24. Kuetzing, F. T. Umwandlung niederer Algenformen in hohere. Haarlem. 1841. 25. Livingston, E. E. On the nature of the stimulus which causes the change of form in polymorphic green algae. Bot. Gaz. 80: 289-317. 1900. 26. Livingston, E. E. Further notes on the physiology of polymorphism in green algae. Bot. Gaz. 32: 292- 302. 1901. 27. Livingston, E. E. Chemical stimulation of a green alga. Bull. Torrey Eot. Club. 32: 1-34. 1905. 28. Livingston, B. E. Physiological properties of hog waters. Bot. Gaz. 39: 348-355. 1905. 29. Livingston, B. E. Uotes on the physiology of Stigeodon - him Bot. Gaz. 89: 297-300. 1905. 30. Lotsy, J. P. Vortage uber botanische Stammesgeschichte.. Ed. 7: Algen und Pilze. Jena. 1907. 31. Migula, W. Krytogamen- flora von Eeutschland, Duetsch- Oesterreich und der Schweiz. Thome’s Flora. Bd. 2: I Teil. Gera. 1907. 32. ISTaegeli, G. Gattungen einzelliger Algen. Zurich. 1849. 33. Oltmanns, F. llorphologie und Biologie der Algen. 1 : Jena. 1904. 34. Pringsheim, U. Algologische Uittheilungen. II. Ueber Fortpflanzung von Coelastrmn Ha eg. Flora. 35: 486-492. 1852. 35. Senn, G. Ueber einige coloniebildende einzellige Algen. Bot. Ztg. 57: 39-104. 1899. 36. Smith, G. 11. T etradcsmus, a new four-celled coenobic alga. Bull. Torrey Bot. Club. JO: 75-87. 1913. 37. Smith, G. 11. Cell structure and colony formation in Scenedesmus. Arch. f. Protistenkunde, 32: 278-294. 1914. 38. Tischutkin, H. Ueber Agar-Agarkulturen einigen Algen und Amoben. Centralblatt f. Pact. 3: Abt 2, 183- 188. 1897. Smith — The Organization of the Colony . 1205 39. Toni, G. B. de Svlloge algarum omnium hucusque cogni- tarum. 1. Padua. 1889. 40. Ward, II. Marshal]. Some methods for use in the cul¬ ture of Algae. 'Ann Bot. 13: 563-566. 1899. 41. West, G. S. A treatise on the British freshwater algae*, Cambridge. 1904. 42. West, W. Algae of the English lake district. Jour. Roy. Mie. Soc. London. 713-748. 1892. 43. Will©, M. Conjugatae und Chlorophyceae Engler und Prantl, Die Matiilichen Pflanzenfamilien. Raehtrag zum I toil, 2 Abt. 1911. Smith — The Organization of the Colony , 1207 1208 Wisconsin Academy of Sciences, Arts and Letters . EXPLANATION OF PLATE LXXXV. All figures in Plates LXXXV to XCI were drawn with the aid of the Abbe camera lucida, the drawing being at the level of the base of the microscope, and with the Leitz objectives 1/16 and 6 in combination with oculars 4 and 3; the magnifications being about 2000x and 750 X with the ocular 4, and 1650 with the objective 1/16 and ocular 3. Tetracoccus botryoides Fig. 1. Group of colonies as occurring in nature. (2000 X) Coelastrum microyorum Figs. 2-17. Colonies one month old. From cultures grown in 0.1% Knop’s solution. Fig. 12, 750 X, all others 2000 X. PLATE LXXXV SMITH COENOBIC / PLATE LXXXV SMITH:— COENOBIC ALGAE TRANS. WIS. ACAD. VOL. XVII COCKAYNE— BOSTON -The Organization of the Colony. 1209 PLATE LXXXVT. 1210 Wisconsin Academy of Sciences, Arts and Letters . EXPLANATION OF PLATE LXXXYI. Pediastrum Boryanum Figs. 20, 23-26, 31-35, are magnified 750 X; Figs. 21, 37 and 38, 1650 X; Figs. 18, 19, and 22, 2000 X. Figs. 18, 19, 21, 22, 31-38. Colonies one month old, from cultures grown in 0.1% Knop’s solution. Figs. 20, 23-26. Colonies two months old, from cultures grown on agar slants containing 0.1% Knop’s solution. Pediastrum tetras Figs. 27-30. Colonies as occurring in nature. The magnification in Fig. 27 is 750 X, the rest 2000 X. PLATE LXXXVI TRA SMITH COE TRANS. WIS. ACAD. VOL. XVII PLATE LXXXVI SMITH:— COENOBIC ALGAE Smith — The Organization of the Colony. 1211 PLATE LXXXYII. 1212 Wisconsin Academy of Sciences, Arts and Letters, EXPLANATION OF PLATE LXXXVII. Scenedesmus acutus Figs. 39-87. Colonies one month old, from cultures grown in 1.0% Knop’s solution with the addition of 1.0% glucose. SMITH COENOBIC AL I TRANS. WIS. ACAD. VOL. XVII COCKAYNE — E SMITH:— COENOBIC ALGAE PLATE LXXXVII ■ , Smith — The Organization of the Colony . 1213 PLATE LXXXVIIT. 1214 Wisconsin Academy of Sciences, Arts and Letters. EXPLANATION OF PLATE LXXXVIII. Scenedesmus acutus Figs. 68-98. Colonies one month old, from cultures grown in 1.0% Knop’s solution with the addition of 1.0% glucose. TRANS. WIS. AC PLATE LXXXVIII SMITH:— COENOBIC Al| TRANS. WIS. ACAD. VOL. XVII PLATE LXXXVIII COCKAYNE— BOSTON Smith — The Organization of the Colony. 1215 PLATE LXXXIX. 1216 Wisconsin Academy of Sciences , Arts and Letters . EXPLANATION OF PLATE LXXXIX. Scenedesmus quadricauda Figs. 99-115. Colonies four months old, from cultures grown in 1.0% Knop’s solution with the addition of 1.0% glucose and 1.0% sodium chlorid. TRANS, V PLATE LXXXIX ■SMITH:- TRANS. WIS. ACAD. VOL. XVII PLATE LXXXIX COCKAYNE - BOSTON Smith — The Organization of the Colony . i PLATE XO. 1218 Wisconsin Academy of Sciences, Arts and Letters , EXPLANATION OF PLATE XC. Tetradesmus wisconsinensis Figs. 116-126. Colonies two months old, from cultures grown in 1.0% Knop’s solution with the addition of 1.0% glucose. TRANS. WIS. ACAD. VOL. XVI! SMITH COENOBIC ALGAE COCKAYNE — BOSTON Smith — The Organization of the Colony. PLATE XCL 1220 Wisconsin Academy of Sciences , Arts and Letters , EXPLANATION OF PLATE XCI. The photomicrographs in this plate were made with the Zeiss camera in combination with the Zeiss apochromatic objective 8, and compensat¬ ing ocular 12. The' magnification is about 210 X. Dactylococcus infusionum All of the illustrations in this plate were made from cultures one month old. The alga was grown in 1.0% Knop’s solution with the ad¬ dition of 1.0% glucose. Figs. 127-132, 137. Colonies showing characteristic manner of branch¬ ing. Figs. 130, 133-135. Cultures showing isolated cells with some joined laterally. Figs. 138-141. Colonies with reticulate arrangement of the cells. TRANS. WIS. ACAD. VOL. XVII PLATE XCI SMITH:— COENOBIC ALGAE COCKAYNE — ’BOSTON Bean — The Myxomycetes of Wisconsin. 1221 THE MYXOMYCETES OF WISCONSIN Alletta F. Deaf.' LNTBODlTCTIOFr T3ie Mycetozoa include about 400 known species, tb© greater part of which are contained in the group of the Myxomycetes, or Slime-Moulds (the Myxogasteres of Fries,) and the smaller part in the group of the Acrasieae. The nearly 400 species are distributed among 50 genera. In the United States 200 or more species have been recognized. McBride, in 1894, reported 75 species from eastern Iowa. The present paper embodies the results of collections and studies begun in 1903. Down to the present year I have identi¬ fied seventy-four species of Myxomycetes collected in the state of Wisconsin. The specimens upon which this list is based are in the herbarium of the University of Wisconsin. Collec¬ tions have been made in relatively few localities within the state. A more extended search would doubtless considerably increase the number of species. In the determination of species I have consulted mostly Saeeardo’s Sylloge Fungorum, Lister’s Mycetozoa , Massee’s Myxogasteres . and Ma ©bride’s North American Slime-Moulds. In the descriptions which follow7 I shall refer to these works simply by the names of their authors. When in doubt in naming a specimen I have followed Mac- bride, except that in the cases of Fuligo sepiica Ganelin, and Enteridium liozeanum Wing, I have followed the usage of Lister which seems to me to be more nearly in accordance with the rules laid down by the International Botanical Congress of 1222 Wisconsin Academy of Sciences , Arts and Letters. 1905 and 1910. 'In the arrangement of genera and species, again I have followed Macbride. I desire to make grateful acknowledgment to Dr. Robert. A. Harper, first for suggesting to me this most enjoyable subject for study, and second for his invaluable advice and assistance in the work during the first three years ; to Dr. Charles E. Allen for help during the past year; to Dr. Thomas H. Macbride for assistance in determining several difficult specimens; and to various members of the Department of Botany of the Univer¬ sity of Wisconsin for assistance in collecting material. Bean — The Myxomycetes of Wisconsin. 1223 Ceratiomyxa fruticulosa (Muell.) Macbr. 1775. Byssus fruticulosa Mueller, FI. Ban., t. 718, fig. 2. 1889. Ceratiomyxa mucida Schroeter, Eng. u. Prantl Nat. Pflanz., I, i. p. 16. Macbride : ‘ ‘ Plasmodium in rotten wood, white or nearly trans¬ parent; when fruiting, forming on the substratum mold-like patches composed of the minute sporiferous pillars, generally in clusters of three or more together ; spores white, ovoid or ellip- sodial, smooth, 10-12 x 6/x. ” Saccardo adopts the name Ceratium hydnoides ( Jacq.) Alb. and Schw. He gives the color as white or yellow, and the spores as ovoid, 10-12,0, by Sy, or globose, 10y in diameter. He finds the spores to be minutely guttulate and hyaline. Lister: 4 1 Sporophores white or pinkish yellow, membranous, either rising from a common hypothallus in a tuft of simple or forked, fasciculate obtuse branches, 1 mm. or more high, .07 mm, thick, or more or less interwoven in broad perforated bands, from which arise irregular and anastomosing lobes; the membranous wall is divided, chiefly on the upper part of the sporophore, into somewhat hexagonal areolae about 10, a broad ; a membranous stalk bearing the spore arises from the center of each areola. Spores 10x6 to 13x7iu.M The above descriptions are excellent for this species. I find spores that are ovoid or ellipsoid, 8-11 by 6-8/x, and globose ones 10-11/ji in diameter. I found a small specimen of this species in Cemetery woods October 14, 1903. In February, 1904, some chips under a bell- jar in the herbarium room produced some of this species, giving me good material for microscopic preparations. April 25, 1904, in the greenhouse, a piece of decayed poplar 3 ft. by 6 in. sud¬ denly became nearly covered with the fruiting bodies. It looked like a small snow-drift and was a beautiful sight. Since then this species has frequently appeared in the greenhouse. On May 27, 1904, a quite large log of decayed poplar became nearly cov¬ ered with specimens of this species of a clear sulphur yellow, ex¬ cepting at one end of the log, where they were white. The yel¬ low did not gradually fade out to white, but the colors were 1224 Wisconsin Academy of Sciences, Arts and Letters . mixed together in spots for a short distance. Under the micro¬ scope the two kinds showed no differences. As the yellow kind dried or grew old it became white, and no difference is now not¬ iceable between the dried specimens. Fuligo septica (Linn.) Gmelin. 1753. Mucor septicus Linn., Sp. PI., II,. no. 1656 ( ?). 1791. Fuligo septica (Linn) Gmel., Syst. Nat,, p. 1466. Macbride adopts Schaeffer’s name, F. ovata, “Plasmodium bright yellow ; aBthalium pale brown or yellowish brown, of vari¬ able size and shape, one to five inches in diameter, and one half an inch to an inch thick, enclosed by a distinct calcareous crust, which varies greatly in texture, thickness, and color, anon brown, stout, persistent, sometimes thin, bright yellow, scarce recogniz¬ able ; capillitium well developed but variable in color and extent ; spore -mass dull black, sooty; spores spherical, purplish brown, smooth, 7-10 fi.” Saccardo uses the name F. septica (Linn.) Gmel. He speaks of the peridia as forming a common interwoven colored mem¬ brane, and says the color varies from deep yellow to white. Lister adopts the same name as Saccardo. He calls the sstha- lia pulvinate, and adds: “The cortex is sometimes wanting, when the surface is grey and marked with brain-like convolu¬ tions . ..Columella none. Capillitium a loose net- work of slender hyaline threads more or less expanded at the axils, with rounded, fusiform, or branching yellow or whitish lime-knots, varying much in size.” He gives the diameter of the spores as 6-10/*. Massee calls this species F. varians Rost. He differs from the above-quoted descriptions in no point excepting the diameter of the spores, which he gives as 7-11/*. The specimens which we have, agree in general with the fore¬ going descriptions, the spores, however, being from 7-10/* in dia¬ meter. I find the sethalia of my specimens to be from 1 to 5 inches long and of varying widths. This species seems to be quite common throughout the state. I have specimens growing upon oak and other bark, moss, grass stems, and one aethalium upon an oak leaf. They were found in the university campus woods and elsewhere inj Madison in, Octo- Dean — The Myxomycetes of Wisconsin. 1225 her, 1899 and 1903; in Nelson’s woods August 22, 1903; at Star Lake in August 1901 ; Palmyra, July 3, 1903 ; Blue Mounds, Aug¬ ust 8, 1903; Brule river, July 17, 1897, and near Webster in the summer of 1894. An Eethalium also formed and ripened un¬ der a bell- jar in the herbarium room upon a piece of bark brought from Elmside woods in the fall of 1903. The plasmodium of this specimen was at first a delicate creamy white, but just before aggregating into the sethalium it became yellow. Another small sethalium was found at Algoma, October 1904. Fuligo vioiacea Persoon. 1801. Fuligo vioiacea Persoon, Syn. Meth p. 160. Macbride: ‘‘iEthalium thin, two or three inches wide, covered by a cortex at first bright yellow and very soft, at length almost wholly vanishing, so that the entire mass takes a purple violet tint, upper surface varied with white; capillitium rather open, the more or less inflated, large, irregular nodes joined by long, slender, delicate, transparent filaments; spores dark violet, min¬ utely roughened, spherical, about 7.5 /*.” Neither Lister nor Massee recognizes this species. This is very different in general appearance from F. septica. The absence of the cortex almost as soon as the sethalium is ripe, the delicate violet color of the remainder, and the small spores make this species not impossible to differentiate from F. septica. I find the spores to be from 7-8/x, and none over 8/x in diameter. We have one specimen growing on decayed wood, found in the lake shore woods at Sturgeon Bay, July 24, 1907. It is quite possible that among the older specimens in our col¬ lection there may be some that should bear the name, which are labelled F. septica , but which are so badly preserved or so much eaten by insects that it is difficult to determine them. Macbride says of F. vioiacea , “ Probably everywhere, but not distinguished from F. ovata the latter being the name which he adopts for F. septica. 1226 Wisconsin Academy of Sciences , Arts and Letters. Physarum sixmosum (Bull.) Weinm. 1791. Reticularia sinuosa Bulliard, Champ, p. 94, t. 446, fig. 3. 1828. Physarum sinuosum Weinmann, Fries teste , l. c. Macbride: “Sporangia distinct or plasmodiocarps the plas- modiocarp creeping in long vein-like reticulations or curves, lat¬ erally compressed; sometimes distinct and crowded, always ses¬ sile. Peridium double ; the outer thick, calcareous, fragile, snow- white: the inner delicate, the dehiscence by longitudinal fissure. Capi]litium strongly developed with abundant white, calcareous granules. Spores smooth, dull violet, 8-9/x. Easily recognized at sight by its peculiar form, bilabiate and sinuous. ’ ’ Saccardo credits the generic name of this species to Rostafin- ski. He calls the color snowy, grayish, or yellowish- white. The remainder of his description does not differ from Macbride ’s. Lister finds the sporangia sometimes pulvinate, bursting irreg¬ ularly, and white, gray, or yellowish. The spores he calls violet- brown, spinulose, and 8-10y in diameter. The general character of my specimens is well described above. I find the three different colors in different specimens, the snowy, grayish, and the yellowish- white. The spores are from 7-1 0/t in diameter and are distinctly though minutely spinulose. One specimen found upon dead oak leaves on a lawn in Madi¬ son, July 20, 1904, has a quantity of Biderma hemisphericum mingled with it. Another specimen was found upon dead oak leaves and small stems in Yilas woods, July 16, 1904, another up¬ on dead leaves I found at Blue Mounds, July 23, 1904, and still another was collected at Blue Mounds July 13, 1907. Physarum contextum Persoon. 1796. Biderma contextum Persoon, Ohs. Myc., I., p. 89. 1801. Physarum contextum Persoon, Syn. Meth ., p. 168. Saccardo: “ Sporangia distinct, sessile, densly crowded, sub- rotund or reniform, base broad, 1-1.5 mm. long, .25 mm,, wide ; peridia double, outer layer thick, calcareous, yellow or yellowish white, inner layer thin, yellowish; capillitium with numerous, irreguar. closely packed, colorless, calcareous granules ; columella commonly none; spores very dark, spinulose, 11-13/a diameter. Bean — The Myxomycetes of Wisconsin. 1227 Mac, bride’s description is almost identical with Saccardo’s, but he adds that the outer peridium, especially its upper part, is en¬ tirely evanescent. Lister says that the capillitium has scanty hyaline threads connecting the branching lime-knots. He calls the spores dark violet-brown. He states that Rostafinski was the first to detect and point out that in P. context inn the spores are rough and measure 10-1 3 m, while in P. conglomeratum they are nearly smooth and meashre 8-9y in diameter. Massee differs from Lister only in the dimensions of spores, which he finds to be 11-14/* in diameter. He says this species is known from P. comjlomeratum by the denser capillitium of num¬ erous large, irregular lime-knots, and the larger sporangia usu¬ ally of a pale lemon yellow, sometimes with a very faint tinge of green. My specimens agree very closely with the above quoted descrip¬ tions. I have two specimens which I found in Cemetery woods1 in October 1903, growing on and under poplar bark. One group is about one inch long by a third as broad, the other is about a fourth as large ; another from Blue Monuds, August 8, 1904 ; an¬ other from East Madison on a dead straw found August 10, 1904. Physarum cinereum (Batsch.) P'ers. 1786. Lycoperdon cinereum Batsch, Blench. Fung., p. 249, fig. 169. 1805. Physarum cinereum Bersoon, Synopsis, p. 170. Maebride: “Plasmodium watery- white or transparent, wide- streaming on decayed sod, etc. Sporangia sessile, closely gregar¬ ious or even heaped, sub-globose, elongate or plasmodiocarpous, more or less calcareous, gray ; peridium simple, thin, more or less densely coated with lime; capillitium strongly developed, the nodes more or less richly calcareous, the lime-knots rounded, angular; spore-mass brown, spores violaceous-brown, 10-12/*, distinctly warted.” He calls it a “delicate, inconspicuous species, ashen gray. ’ ’ Lister varies somewhat from the above. He says in part: “Sporangia pulvinate, heaped, crowded, or scattered, cinereous, more or less warted or veined with white; capillitium sometimes 1228 Wisconsin Academy of Sciences , Arts and Letters. forming a Badhamia- like network with few hyaline threads. Spores bright violet-brown, almost smooth or spinulose, 7-10/* diam. * ’ The species described by Massee under the name P. scrobicula - turn Massee, and for which he gives the synonym P. cinereum , differs so materially from the above, that it is quite evidently a different species. I find the sporangia globose, elongate, plasm odiocarpous, scat¬ tered, and crowded, and I have one pulvinate set of sporangia ; when they are ripe they are gray ; the capillitium nodes are large, irregular. Spores are 8-9/* in diameter in my specimens. One collection is on fresh green leaves of several kinds ; there are many immature sporangia among them ; this was collected near Madison, July 7, 1904; a small group packed solidly together is on some little branched stems, found at Blue Mounds, July 8, 1905 ; and another was collected in Madison July 1, 1913. Physanm auriscalpium Cooke. 1877. Physarum auriscalpium Cooke, Myx. U. S., p. 384. Macbride: “Sporangia gregarious, stipitate, small, bright yel¬ low, depressed globose, rough : stipe reddish-brown or fuliginous, even, slender: hvpothallus scant, black, or none; columella none; threads of the capillitium yellow, delicate, connecting the rather dense and abundant lime granules ; spore-mass brownish black, spores violaceous, minutely but distinctly spinulose, 9-11/t”. He says that this species is easily recognizable by its brilliant yellow color, somewhat rugose, sometimes scaly, peri- dium, its richly calcareous capillitium, also bright yellow where not weathered or faded, its dark brown translucent non-calcare- ous stem. Spores 9-10/*. 'Lister’s description agrees very closely with MacBride’s, but he says the sporangia are scattered or in small clusters. Massee, under the name P. ornatum , describes this form very nearly as given above, but he does not give the synonym P. auris¬ calpium. He makes out the spores to be from 10-11^ in dia¬ meter. T have but one collection of this attractive species with its vivid yellow sporangia and reddish stipe. The capillitium nodes are Bean — The Myxomycetes of Wisconsin. 1229 large, the filaments short. The spores I find to be a rich, violet, 9-10/a in diameter. T found this group in Cemetery woods, July 28, 1904, growing on decaying bark. Physarum variabile Eex. 1893. Physarum variabile Eex., Proc. Phil. Acad., p. 371. Macbride (In part) : “ Sporangia scattered, stipitate or sessile, globose, ellipsoidal, etc. ; sporangium- wall of a dingy yellow or brownish ochre color, slightly rugulose on the surface, crustace- ous, brittle, rupturing irregularly, sometimes thin, etc. ; stipes nearly equal, occasionally much expanded at the base, rugose, var¬ iable in size, color varying from yellowish white to dull brownish gray; capillitium a small-meshed network of delicate colorless tubules with large, many-angled, rounded masses at nodes; no columella, but often a central irregular mass of white lime gran¬ ules; spores dark violet brown, verruculose, 9-10 y.” He adds that it differs from P. citrinellum in the size of the sporangium, the habit of fruiting, size, color, and marking of the spores; from P. melleum in having no columella ; and from P. auriscalp- ium by having a much closer capillitium with paler nodules, as well as by much stouter habit, and the peculiar metallic or bronze yellow of the peridial wall. Lister describes it as glossy, yellowish-olive ; the stalk conical, furrowed, yellowish-brown, densely charged wdth white lime- granules ; capillitium a close network of slender hyaline threads with membranous expansions at the axils of the branches; lime- knots numerous, irregularly branching, many large and con¬ fluent, wdiite or pale yellow. In other respects he does not differ from Macbride, whom I have but partially quoted. Massee does not describe this species. This is neither the bright yellow of P. auriscalpium , nor the honey-yellow of P. melleum. It is a dull light yellow with the stipe a trifle darker. The nodes in the sporangia that I have are few. large and irregular. The spores are pale reddish-brown 9 — 10u. We have one collection, made at Elmside, Madison, July 15, 1904. 1230 Wisconsin Academy of Sciences , Arts and Letters. Physanxm nefroideum Rostafinski. 1875. Physarum nefroideum Rost., Mon., p. 93. Macbride: “Sporangia gregarious, sessile, stipitate, or even plasmodioearpous ; when stipitate, globose, depressed, or anon re- niform, usually concave or umbilicate below, the peridium strongly calcareous, cinereous- white ; stipe variable, generally tapering upward, always distinctly deeply plicate-furrowed; varying in color from nearly pure white, through different shades of gray to brown fuliginous or black; hypothallus none or ob¬ scure; columella ;nione ; capillitium abundant, the white lime- knots varying in size and shape, connecting by rather long' hya¬ line threads, with here and there an empty node; spore-mass black, by transmitted light dark, sooty brown, minutely papil¬ lose, 10-11. 5^.” Macbride says also that, while normally stipi¬ tate, it often shows from the same plasmodium all sorts of forms. The amount of lime also varies, especially in the capillitium, where there is always a tendency to the formation of something like a pseudo-columella. Lister adopts the name P. compressnm Alb. and Schw. He describes the sporangia as erect, splitting along the upper ridge,' scattered, closely aggregated or confluent. The stalk never has a chalk- white fracture at the base. He finds the spores to be dark purplish-brown, more or less spinulose or echinulate and from 9-14/x in diameter. He finds much difference in size and roughness of the spores in sporangia from the same cultivation. He finds also American specimens with nearly globose sporangia, and buff or white, long or short,, stout stalks, and says that these forms are more symmetrical than European forms. The description in Saccardo of the species P. cowpressum A. and S., with the synonym P. nefroideum Rost, and the descrip¬ tion in Massee of the species P. nefroideum Rost., are identical, and offer no material departure from the above. This descrip¬ tion, however, calls the spores globose or angularly subglobose, 11-13/x in diameter, minutely verruculose. The abundant material which I have agrees with Macbride V description excepting that I find the spores to be 9-11 y in di¬ ameter. My specimens are mostly upon the bark and wood of decayed Dean — The Myxomycetes of Wisconsin. 1231 poplar. I have specimens from Blue Mounds gathered October 12, 1901 ; from Dead Lake, October 1903 ; several gatherings from Cemetery woods during the last ten days of October, 1903 ; and from Vilas woods, July 16, 1904. In the winter of 1912-13 tobacco stems which had been put on the plant benches of the greenhouse of the Biology Building bore a large crop of P. nefroideum , all the sporangia of which were distinctly reniform, many of them being also bent into a crescent shape laterally. They were very dark gray in color. Physarum globuliferuni (Bull.) Pers. 1791. 8 ph aero carpus glo'buliferus Bulliard, Champ., pi. 484, fig. 3. 1801. Physarum globuliferum Pers. Syn., p. 175, t. III., figs. 10-12. Macbride: “Sporangia gregarious, stipitate, globose, or slightly depressed above, pale gray or pure white; stipe some¬ times equal to the sporangium, generally longer, slender, slightly wrinkled, white or yellow, pallid, when longer tapering upward! columella white conical, sometimes obsolete; hypothallus none; capillitium dense but delicate, persistent, a close net-work of hya¬ line threads, with white or yellowish nodes sparingly thickened and calcareous, many without lime; spore-mass brown; spores by transmitted light violet, minutely warted, 7.5-9y.” Lister’s description varies but little from the above. He says that sometimes the stalk is red-brown towards the base, that the capillitium is persistent, retaining the form of the sporangium after the dispersion of the spores; that the spores are violet- brown, almost smooth, 6-8y in diameter. Massee says that the sporangia are grayish; the stem equal to the sporangium or twice as long, rigid, fragile, white, sulcate; columella large, cylindrical, obtuse, white; vesicles containing lime in the capillitium are numerous, of variable size, yellowish or reddish: spores smooth, 9-11 y. in diameter. In my collections I find the long, slender, wrinkled yellow stipe ; I find the persistent capillitium ; other characteristics agree with Macbride ’s description. One collecton was made at Blue Mounds, July 1904, growing 1232 Wisconsin Academy of Sciences , Arts and Letters. on green moss and dead wood, another at Blue Mounds, July 1907, on green grass stems. Physaxmn melleum (Berk, and Br.) Mass. 1873. Dydymium melleum , Berk. & Br., Jour. Linn. Soc. XIV p. 83. 1892. Physarum melleum Massee, Mon., p. 278. Macbride: “Sporangia scattered, stipitate, globose, flattened below, clear yellow or honey-colored ; stipe short, about equaling the sporangium, pure white, somewhat wrinkled ; columella small but distinct, white: hypethallus none; capillitium abundant, open, snow-white, with rather large angularly stellate nodes; spore-mass brown, almost black ; spores by transmitted light pale violet or lilac-tinted, almost smooth, 7.5-10/a: Easily distin¬ guished by its white stipe, columella and capillitium in strong contrast with yellow peridial walls. Lister describes the plasmodium as yellow ; sporangia yellow or brownish-yellow; sporangium-wall membranous, often wrinkled, persistent at the; base, yellowish, with minute yellow lime gran¬ ules sparsely distributed ; stalk white, buff, or rufous, stout, opaque, with few shallow furrows ; capillitium consisting of ir¬ regularly branching delicate hyaline threads sometimes expanded at the axils, with lime-knots white or yellowish, various in shape and size, mostly large and angled. Spores 7-8y in diameter. Massee calls the color of this species yellowish-olive or honey- colored, sprinkled with minute particles of lime. He describes the capillitium as very dense, snow-white, the nodes numerous, very large, angularly stellate, separated from each other by con¬ strictions only, lime in the form of granules present in every portion; spores minutely verruculose, 6-7/x in diameter. In other particulars his description does not differ from those above given,. This species is a dull brownish-yellow — honey-color describes it well ; it is not the vivid yellow of P. auriscalpium, and it has a white stipe, whereas that of P. auriscalpium is dark. In P. mel¬ leum the stipes often remain after the sporangia disappear. The above descriptions render it easy to determine. We have one collection, gathered in the campus woods, July 22, 1904 : Bean — The Myxomycetes of Wisconsin. 1233 Physaram leucopus Link. 1809. Physarum leucopus Link, Biss., I., p. 27. Macbride: ‘ ‘ Sporangia gregarious, stipitate, globose, snow- ' white, with a BidymiuwA ike covering of calcareous particles; stipe not long, conical or tapering rapidly upward, slightly sul- cate. brittle, from an evanescent hypothallus ; columella none or small: capillitium consisting of rather long hyaline threads, con¬ necting the usual calcareous nodes, which are large, angular, snow white : spore-mass black ; spores by transmitted light violet brown, distinctly warted, about 10/x.” He adds that the snow-white, nearly smooth stem and the small sporangia covered with loose ealcai'eous granules, distinguish this rare species. It looks like a small Bidymium sqvamulosuw Lister says, in part: “Plasmodium opaque-white. Sporangia grayish white or glaucous, gregarious or clustered, stalked, rarely almost sessile ; stalk white, stout, thick, with a few shallow longi¬ tudinal furrows, erect, rigid, brittle, somewhat narrowing up¬ wards, chalk-white in section to the base, rising from a more or less developed white hypothallus. ” He finds the spores to be l-lOy in diameter. Massee differs in a few particulars: “Sporangia globose, broadly ellipsoid or a little depressed, stipitate or sessile, rarely elongate and flexuous or anastomosing, wall at first covered with a continuous snow-white coat of lime, which soon becomes broken up into smooth innate patches; stem variable in length, white, passing into a more or less evident hypothallus ; spores globose, dingy lilac, rather coarsely warted, warts almost black, 9-12/x diameter. ’ ’ The short, stout, white, rigid stipe is a distinctive characteris¬ tic of this species. I do not find any flexuous or anastomosing sporangia in my specimens. Our one group was found growing on dead wood beside the Windsor road, July 7, 1904. Physarum nucleatum Rex. 1891. Physarum nucleatum Rex., Proc. Phil. Acad., p. 389. Macbride : “Sporaneria gregarious, spherical, % nim., white, stipitate ; peri dial wall membranaceous, rupturing irregularly, 1234 Wisconsin Academy of Sciences, Arts and Letters. thickly studded with rounded white lime granules ; stipe about 1 mm., subulate, yellowish white, rugose ; columella none, capilli- tim dense snow-white, with minute white round or rounded white nodes, in the center a conspicuous mass of lime forming a shining ball, not part of the stipe, although sometimes produced toward it > spore-mass black ; spores brown violet, delicately spin- ulose, 6-7/a. This species may be distinguished from P. globuU- ferum by the absence of a columella, by the central ball of lime, and the very small rounded lime granules in the meshes of the capillitium." Lister finds the stalk pale buff, or yellow, translucent above, without deposits of lime, enclosing refuse matter at the base ; the capillitium threads colorless with scattered minute rounded white lime-knots; in the centre of the capillitium is usually suspended a shining white calcareous ball. Otherwise his description dues not differ from Mac bride's. Massee has no mention of this species. The snow-white sporangia before rupturing, the pale yellow stipe, the dense white capillitium, and, more distinctive than any other feature, the shining white calcareous ball suspended in the center, make this pretty species easy to determine. I find that after the spores are dispersed the groups of sporangia havp a faint brownish tinge. The spores in my specimens are 6-7/a in diameter. We have many specimens gathered in the campus woods dur¬ ing the last part of July 1904. Tilmadoche polycephala (Schw.) Macbr. 1822. Physarum polycephalum Schweinitz, Syns Fung. Car., no. 382. 1899. Tilmgdoche polycephala Macbride, N. — A. S. — M., p. 57. Maebride : “Sporangia spherical or irregular, impressed, gy- rose-confluent, helvelloid, umblicate below; peridium thin, ashy, covered with evanescent yellow squamules, fragile ; stipe from an expanded membranous base, long subulate yellow ; spores smooth, violet, 9-11 /a: A most singular species and well defined. The piasmodium as it emerges white, then yellow, spreading far over all adjacent objects ; by morning fruit, a thousand stalked spor¬ angia with their strangely convoluted sculpture. The winds Dean — The Myxomycetes of Wisconsin. 1235 bear off the sooty spores, and naught remains but twisted yellow stems crowned with a pencil of tufted silken hairs. August. ” I have quoted but part of Macbride ’s description. Lister uses the name Physarum polycephalum Schw. He finds the sporangia stalked, compressed vertically, lenticular, undulate or lobed, confluent in clusters of five to ten together, grey or yellow ; capillitum a loose network of slender threads with many flat expansions at the axils; he finds the spores violet-brown, minutely spinulose, 8-10/* in diameter. Massee does not describe this species. The little sporangia with their irregular convoluted tops make the species a noticeable one. I have a collection on a green com¬ pound leaf of three leaflets; the upper surface and the stem are completely covered, and the under surfaces more than half cov¬ ered with these odd little forms. We have but this one collection which came from Winnequah, July 22, 1905. Tilmadoehe alba (Bull) Macbr. 1791. Sphhaerocarpus albus Bulliard, Champ., p. 137, etc. 1899. Tilmadoehe alba Macbride, N. — A. S. — M., p. 58 Macbride: “Sporangia gregarious, depressed spherical, stipi- tate, umbiiicate, gray or white, thin-walled, nodding ; stipe long, tapering upward, brown or ashen-white above, lightly striate, graceful ; capillitium abundant, threads delicate, intricately com¬ bined in loose persistent network with occasional minute, rounded, or elongate calcareous nodules; spores minutely rough¬ ened, globose, about 10/*. The nodding, lenticular, umbiiicate sporangium, barely attached to the apiculate stipe, is sufficient to distinguish this elegant little species. The stipe is usually white above, fuscous below, at the apex almost evanescent ; hence the cemuous sporangia.” Lister calls this species Physarum nutans. His description does not differ from that of Macbride in any important detail. Massee adopts the name of T. nutans Rost. He notes that the thin greyish or white walls, having a thin layer of minute amor¬ phous lumps of lime, become irregularly cracked ; that there is a small hvpothallus ; the spores pale lilac, smooth, or very minutely verniculose, 9-11/x. 1236 Wisconsin Academy of Sciences, Arts and Letters. This tiny species is not difficult to determine. Macbride’s description is adequate. Our specimens are from near Fond du Lac July 1897; Olin’s drive, Madison, July 1904; Vilas woods, July 1904; and Blue Mounds, July 1904. Tilmadoche viridis (Bull.) Saccardo. 1791. Sphaero carpus viridis Bulliard, Champ., t. 407, fig. i. 1880. Tilmadoche viridis (Bull.) Sacc., Michelia II., p. 263. Macbride: ‘‘Sporangia globose, flattened or lenticular, beneath plane or concave, variously colored, yellow, greenish yellow, rusty orange, stipitate, nodding ; the peridium splitting irregularly or reticulatelyJ stipe variable in length and color, through various shades of red and yellow, subulate: eapillitium strongly devel¬ oped, concolorous with sporangium, the tubes with colorless or yellow calcareous thickenings; spores smooth, fuscous or violet black, 8a. A very handsome and rather common little species, like T. alba , but generally greenish yellow in color, and occasion¬ ally brilliant orange without a suggestion of green. ” Lister adopts the name Physarum viride Perg. He finds the sporangium wrall dehiscing in fragments ; the stalk slender subu¬ late, striate, grey or straw-colored, sometimes yellow at the apex shading to red below, usually brown in the lower half; eapillitium a loose irregular network of slender, acutely branching hyaline threads, with fusiform orange lime-knots. Spores brownish violet, almost smooth, 7-10/a in diameter Massee calls this species T. mutabilis Rost. He describes the sporangium wall as having a thin layer of yellow, dingy orange, or greenish colored particles of lime; eapillitium rather dense, with small elliptical nodes containing colored granules of lime; he finds the spores minutely verruculose, 9-11/a in diameter. This tiny species seems to be quite common, and is easily determined. I found no essential differences from the descrip¬ tions given. We have twenty -one collections, the sporangia growing on dead wood or bark. The dates of collection range from 1901 to 1905, and from June 22 to October 21. The most are from Madison and vicinity, but we have specimens from Mauston, Algoma, Palmyra, and Blue Mounds. Dean — The Myxomycetes of Wisconsin . 1237 Badhamia utricularis (Bull.) Berkeley. 1791. Sphaerocarpus utricularis Bulliard, Champ., p. 128, t. 417, fig. 1. 1852. Badhamia utricularis (Bull.) Berk., Tr. Linn. Svc., XXI., p. 153. Maebride: “Sporangia clustered, spherical or ovoid, large sessile or mounted on long thin strand-like stalks, blue-gray, violet- iridescent or cinereous, smooth or more often rugulose; the stipes when present poorly differentiated, as if thread-like filaments and strips of the plasmodium. often branched and always reclining or even prostrate; hypothallus none; capilli- tium a large-meshed open network of rather slender tubules, the nodes unequally developed, white with the enclosed lime'» spores not strictly adherent though not without some tendency to stick together, delicately warted, bright violet brown, 10-12 y..11 Lister says that the plasmodium is chrome yellow, the spor¬ angia ovoid, subglobose, or confluent and lobed, sessile or on membranous straw-colored branching stalks; that the spores usually adhere in loose clusters of 7-10 ; that in some specimens in the Strassburg collection the spores show but slight indica¬ tion of clustering, in others this character is well marked. Massee, calling this species B. varia Massee, says that the stem when present is generally weak and decumbent, several often more or less grown together, pale yellow or reddish, springing from a well- developed hypothallus of the same color. I find the long, weak, thread-like, yellow stipes very distinc¬ tive ; there is no evidence of a hypothallus in one extensive group of specimens that I have, and in another small group a well- developed, thick, dark reddish hypothallus; the spores seem to have no tendency to cluster. I find spores 10/x, 12y, and some as large as 13 u in diameter. One piece of bark half a foot wide and a foot and a half long with the surface very nearly covered with the sporangia, and accompanying it a dead elm leaf having a large group, were found at Blue Mounds November 5, 1904. A small fine specimen from Algoma was found in October 1904. 1238 Wisconsin Academy of Sciences, Arts and Letters . Badhamia papaveracea Berk, and Rav. 1873. Badhamia papaveracea Berk, and Rav., Grcv II., p. 66. Saceardo: “ Sporangia sessile or stipitate. fasciculated, glo¬ bose smooth, white or grayish-white ; when the spores are out, snowy- white ; stipes branched or simple, straw-colored or red¬ dish ; spores adhering in rounded masses of 5 to 20 ; epispore very thick, spinulose, dark violet or black, 10-12/*. Massee: “ Spores at first in clusters of 3-7, triangularly pyramidal, with the rounded base, which corresponds to the free portion of the spore, covered with minute warts, the re¬ mainder smooth ; pale lilac or brownish lilac, 9-10 /a in diameter.” Machride : “Sporangia closely gregarious, globose, large stipitate, iridescent gray; the peridium thin, translucent, and containing but little calcareous deposits, smooth or slightly rugulo.se; stipe very short but generally very distinct, black or very dark brown; hypothallus none; capillitium a network of large meshes with expanded nodes, prominent, white, persistent after the spores have blown away ; sporemass deep brown ; spores adhering in clusters of from 5 or 6 to 20 or more, exposed sur¬ face of spores most distinctly warted, 10-12 .5 /a. ” He says that it is distinguished by its short, dark stipe and adherent spores, and that it is not common. Lister: “Sporangia subglobose, grayish- white, nearly smooth; 0.7 to 1 mm. diameter, shortly stalked or sessile, gregarious; sporangium wall with scanty deposit of lime. Stalk firm, dark brown, rarely straw-colored, 0.2 to 0.3 mm high. Capillitium a network of flat bands with broad, thin expansions at the angles. Spores purple-brown, closely compacted in clusters of 6-10, more strongly warted on the outer third, 10-13/a diameter. My specimen agrees with Macbride’s description, the short, dark stipe and the compacted balls of spores being very distinc¬ tive. We have but one group of specimens, which was found at Al- goma in October 1904. Bean — The Myxomycetes of Wisconsin. 1239 Badhamia rubigin&sa (Chev,,) Rost. 1826. Physarnm rvbiginosuw, Chevalier, FI. Par., p. 338. 1876. Badhamia rubiginosa (Chev.) Rost., Mon. App., p. 5. Macbride: “Sporangia gregarious, obovoid, grayish brown, stipitate, the peridium simple, membranous, above thin, pale, more or less calcareous below, persistent, blending with the stipe; stipe erect, reddish-brown or purplish, expanded below into a small hypothallus, above prolonged within the sporangia more than half its height as a definite columella ; capillitium very dense snow-white, long persistent with the lower two-thirds of the sporangia! wall ; spore-mass dark brown ; spores by transmit¬ ted light dark violet or purple brown, minutely roughened or spinulose, not adherent, 12-14y.’? Lister differs but little from Macbride. He says the sporangia are rarely sessile, columella clavate or cylindrical, capillitium a white or pale rufous rugged network, usually densely charged with lime-granules, sometimes with a few hyaline connecting threads. Saceardo: “Peridia round-top-shape, stipe slender; spo- range twice as broad as it is long; reddish-brown, smooth, shining; columella distinct, cylindrical, firm, dark, formed from the elongated stipe; capillitium very much unrolled, white; peri¬ dium opening with a delicate dehiscence; spores violet, 14-15/a, scarcely wanted. ’ ’ The different forms which I have agree in general with the description by Macbride. The hypothallus is very prominent and of a greenish-brown. As many of the sporangia are imma¬ ture, I think the prominent hypothallus may be but a portion of the plasm odium arrested in its development. The spores are 12-14/a in diameter and are distinctly spinulose. MTe have but one group of sporangia, found at Blue Mounds, July 8, 1905. 1240 Wisconsin Academy of Sciences, Arts and Letters . Crateriim leucocephalum (Pers.) Ditmar. 1791. Stemouitis leucocephala Persoon, Gmelin > Syst. Nat., II., p. 1467. 1813. Craterium leucocephalum (Pers.) Ditmar, Sturm, Deu- tsch. Flora, Pilzc , p. 21, pi. 11. Macbricfe : ‘ ‘Sporangia gregarious, short cylindric or ovate, pure white above, brown or reddish brown below, stipitate, de¬ hiscence irregularly cireumscissile, the persistent portion of the peridium beaker-shaped » stipe short, stout, expanded above into the base of the peridium with which it is concolorous ; hypothal- lus scant; capillitium white or sometimes, toward the center, brownish, the calcareous nodules large, conspicuous, and persis¬ tent ; spore-mass black, spores violaceous brown, minutely spinu- lose, 8-9 ft..” He says it is distinguished by its white cap, and that in some gatherings curious patches of yellow mark the other¬ wise snow-white cap and sides. Lister finds the plasmodium rich yellow; the sporangia ovoid or turbinate, stalked, red-brown with white incrustations of lime and usually spotted with miunte yellow warts on the upper half ; plasmodiocarp forms sometimes occurring; the columella either absent or represented by a central mass of confluent lime-knots, spores violet-brown, spinulose, 7-9/a in diameter. Massee differs but little from the above quoted descriptions in essentials. He calls the spores minutely warted, the warts often with a tendency to form anastomosing lines, 8-11 fi in di¬ ameter. I find Macbride’s description good for this species. It is a pretty form and easily determined. The little vase-shaped sporangia, light above, dark at the base, have a sunken “lidM which breaks away leaving the calcareous nodules showing in the top of the vase, like tiny eggs in a nest. They can be seen with the unaided eye. I have gatherings which have the curious patches of yellow of which Macbride speaks. They are on liv¬ ing and dead leaves, and on dead wood. We have specimens from the campus woods, October 1903, and on three different days of July 1904; from cemetery woods, October 1903, from Yilas woods, July 1904, Devil ’s Lake, June 1905, from Blue Mounds, July 1904 and July 1905, from campus Dean — Tine Myxomycetes of Wisconsin. 1241 woods on dead oak leaves, July 18, 1904, these last mixed with Didymium nigripes. Leu carp us fragilis (Dicks.) Rost. 1785. Ly coper don fragile Dickson, Fasc., PI. Crypt, Brii., I., p. 25. .1875 Leocarpus fragilis (Dicks.) Rost., Mon., p. 132 Saccardo: “Peridia aggregated, sessile or stipitate, obovoid rarely subrotund, yellowish- or reddish-brown, polished, stipe filiform, ascending, white or yellowish; spores globose, dusky- dark, spinulose, 12-14 fx in diameter. ’ ’ Macbride calls the sporangia rusty or brownish-yellow, open¬ ing in a somewhat stellate fashion. He describes the stipe as weak and short, and the spores as dull black. He says the spor¬ angia are recognizable at sight as they resemble the eggs of cer¬ tain insects. The capillitium, he states, is of two or more dis¬ tinct systems, the one a delicate network of hyaline, limeless threads, the other calcareous throughout, or nearly so, the meshes large and the threads or tubules broad. Lister says of the capillitium that it is a network of rigid hya¬ line threads with flattened expansions at the axils and with few lime-knots, connected with a system of coarse branches often combined into a dense network and charged throughout with brownish lime-granules. He finds the spores occasionally 15-20u, in diameter, rarely clustered as in Badhamia. Massee sometimes finds several sporangia more or less grown together. For the capillitium as I find it, Lister’s description is very good. The reticulated hyaline threads are continuations of the coarser reticulated threads containing yellowish lime granules. There are not two distinct systems of capillitium threads as I see them. I find the spores to be dusky purplish, distinctly warted, and from 9-15/a in diameter. The "weak, white stipes are quite often united, sometimes as many as five making a thin expanded common stipe. The sporangia seem to open irregularly. Some of this species were found at the Brule river, July 19, 1897, growing upon dead leaves and twigs. One specimen w^hich I have was found July 13, 1904, in Ceme¬ tery woods, growing upon decayed wood; another, found July 1242 Wisconsin Academy of Sciences , Arts and Letters. 16, 1904, in Yilas woods, is upon decayed wood and a thin layer of green moss growing on the wood. On July 21, 1904, I found several specimens in Cemetery woods, some upon wood, some upon hark, and one very beautiful group about two inches long and a third as wide upon a thin curled dead oak leaf upon which was also a group of Diachea leucopod.a, A fine group of the sporangia was found growing upon the bark of a little thrifty hard maple tree about six inches from the ground, at Blue Mounds, July 23, 1904. Bfueilago spongiosa (Leyss.) Morgan. 1783. Mucor spongiosus Leysser, FI. Hal ., p. 305. 1897. Mucilago spongiosa (Leyss.) Morgan, Bot. Gaz v XXXV., p. 56. Saccardo: “LEthelia grayish-white, 2-6 cm. long, 2-3 cm. wide, spongy ; columella hollow, cylindrical, branched, not reach¬ ing the apices of the peridia, capillitium threads thick, branched, with much thickened nodules ; spores spinulose, dark violet, 10/a in diameter/’ Macbride speaks of the component sporangia as resting upon a common hypothallus and being protected by a more or less deciduous calcareous, porous cortex. lie finds the columella in¬ definite or none, the hypolhallus white, spongy. He finds the spore mass black, the spores violaceous, exceedingly rough, large, 10-15/a in diameter. In fruiting, the plasmodium, he states, ascends preferably living stems of small bushes, herbaceous plants, or grasses, and forms the asthalium around the stem some distance above the ground. Lister finds the asthalia to be 2 to 4 cm. long, 1 to 2 cm. wide, and about 1 cm. thick, which agrees with the measurements of my specimens. He finds the columella to be sometimes absent. The capillitium is a network of widely branching, anastomosing, stout, purplish-brown threads, with numerous dark calciCorm thickenings, hyaline at the extremities. This statement X find to be true, the thickenings on the capillitium threads being quite distinctive. The spores he makes out to be dull purple, strongly spinulose, X0-13y in diameter. Massee does not differ from the descriptions quoted above. This species is also called Spurn-aria- alba (Bull.) I). C. Dean — The Myxomycetes of Wisconsin . 1243 My specimens agree very closely with the descriptions given. They vary in length from 1V> to 4 cm. The spores are dark violet, strongly spinulose, from 12 to 1.5ft in diameter. Three specimens surrounding small stems were found in Madi¬ son. October 14, 1899, and two in campus woods July 14, 1904. One of the latter is nearly globular and is formed on the extreme end of the stem of a dead oak leaf; the other is irregular, upon the base of another dead oak leaf. The other specimen which 1 have nearly surrounds a hardwood twig, and was found at Blue Mounds, July 23, 1904. Didymium squamulosimi (Alb. and Schw.) Fries. 1805. Diclerma squamulosum Alb. and Schw., Gonsp . Fling., p. 88. 1829. Didymium squamulosum (Alb. and Schw.) Fries, tsyst. Myc., III., p. 118. Macbride: “Sporangia in typical forms gregarious, globose or depressed globose, gray or snow white, stipitate; the peridium a thin iridescent membrane covered more or less richly with minute crystals of lime ; the stipe when present, snow white-, fluted or channeled, stout, even ; columella white, conspicuous ; hypothallus small or obsolete; capillitium of delicate branching threads, usually colorless or pallid, sometimes with conspicuous calci- form thickenings ; spores: violaceous, minutely warted or spinu¬ lose, 8-1 0,u. ’ ’ He adds that this is one of the most beautiful species in the whole series, and is remarkable for the variations it presents in the forms of the sporangia, in hypothallus, in capilli¬ tium ; and he describes the different forms that have come under his observation. Lister gives details of the variations, but does not otherwise differ from Macbride. Massee also agrees in general with the above. We have the gray and the white forms, the stipitate and the sessile. In some sporangia where the peridium is broken away, the columella can easily be seen with a hand-lens. I find the spores 8-1 0y in diameter. Six of our collections were made in June and July, 1904, and the seventh in March, 1904, on a few straws in a laboratory. All but one were collected in Madison, one at Blue Mounds. Most of them are on dead oak leaves, found in the woods or on lawns. 1244 Wisconsin Academy of Sciences , Arts and Letters . Bidymium melanospermum (Fers.) Maebr. 1794. Physarum melanospermum Pers.. Bom. N. Mag. Bot.f p. 89. 1899. Bidymium melanospermum (Pei’s.) Macbr., N.-A. S.-M. p. 88. Macbride : ‘ 4 Sporatigia gregarious, hemispheric, depressed, um- bilicate below, stipitate or sessile ; the peridium firm, dull brown in color, frosted with minute crystals of lime, breaking irregu¬ larly ; stipe, when present, short, stout, dull black, opaque, arising from a broad base or hypothallus ; columella large, prominent; dark-colored, rough above, concave below ; capillitium of more or less sinuous, usually dark colored threads, sparingly branched, and often with calciform thickenings; spore-mass black, spores by transmitted light pale, purplish gray, spinulose or rough, 10-12 /x.” Macbride adds that this is a well-marked and com¬ mon species, distinguished by its depressed sporangium and dark- colored, opaque stipe, wieh is very short.. Lister finds the plasmodium colorless or grey, the sporangia often confluent, white or grey mottled with purple-brown, and be¬ set with stellate crystals of lime. He finds the spores dark pur¬ plish-brown or purplish-grey, with a thick spore-wall, nearly smooth or spinose, 9-12 [x diameter. In other respects he does not differ from Macbride. Massee adopts the name, D. farinaceum Schrad. He diffesr but little from the foregoing descriptions. He says the spor¬ angia are at first white with a continuous crust of lime, which soon becomes broken up into white glistening granules scattered on the inner dark, wrinkled wall; stem expanding at the base into a rudimentary hypothallus; lie finds the spores minutely warted, 10-1 3 y in diameter. In ray one collection I find a few confluent sporangia. Th« stellate lime crystals in the walls distinguish it from any P) ty set- rum, with some of which it might easily be confused. The fore¬ going descriptions leave nothing to add. This was collected at Blue Mounds July 23, 1904. It was growing on green moss and decayed wood. Dean — The Myxomycetes of Wisconsin. 1245 Didymium clavus (Alb. and Schwi,) Rabenhorst. 1805. Physarum clavus Alb. and Seliw., Consp. Fung., p. 96. 1844. Didymium clavus (Alb. and Schw.) Rabh., Ger t Cr. FI. no. 2282. ’ Macbride: 11 Sporangia gregarious, pale gray, discoid or pili- ate, depressed, stipitate ; the peridinm dark-colored, frosted with calcareous crystals above, naked below ; stipe short, slender, taper¬ ing upward, furrowed, arising from, a hypothallus more or less distinct, black ; columella obsolete ; capillitium of delicate threads, pale or colorless. little branched; spores violaceous, pale, nearly smooth, 6-8 «. ’ ’ Macbride adds that this species is well differen¬ tiated, easy of recognition by reason of its peculiar discoid spor¬ angia, calcareous above, naked and black beneath. He gives no figure of this form. Lister: “Sporangia scattered, disc-shaped, thick grayish white; sporangium wall thickened and brown at the base; capillitium profuse colorless or purple-brown threads ; spores pale violet- brown, almost smooth, 5 -8/x.” Massee finds sporangia plane below ; some small ring-like dark- colored thickenings on the capillitium threads; spores smooth, dingy lilac, 6-8, a.” In my one small group of sporangia I find many differences from the above descriptions, yet enough correspondence to make it certain, in my opinion, that it is D. clavus. The hypothallus is not very evident but is noticeably black; the sporangia are dis¬ coid, not very much depressed ; the stellate crystals are nearly alt asymmetrical, having one arm or ray longer than the others ; the crystals are not as large and noticeable as Massee has pictured in his figures : the sporangia are markedly umbilicate both above and below » I do not find the base bare and dark, unless it is so up under the curve or umbilicus; the stipe I find as described; the capillitium is darker than the spores, purple-brown; I found some darker spots on the threads, but failed to see many of them and could not make them out to be rings, as seen by Massee ; the spores in mine are quite uniformly 6/x, yet I found a considerable number to be 8/x in diameter. They are pale violaceous and nearly smooth, although I saw some which showed small spines. My one group was found growing on live moss at Blue Mounds, July 18, 1907. 1246 Wisconsin Academy of Sciences, Arts and Letters. Bidymrain Nigripes (Link) Fries. 1809. Physarum nigripes Link, Obs. Biss., I., p. 27. 1829. Bidymium nigripes (Link) Fries, Syst. Myc., III., p. 119. Maebride: “Sporangia gregarious, globose or hemispheric, nm- bilicale beneath, small, white, stipitate : the peridium smoky, cov¬ ered with minute calcareous crystals ; stipe slender, erect, black, opaque; hypothallus thallus scutate, black; columella distinct, globose, black or dark brown ; capillitium of delicate threads, pale brown or colorless, with occasional brown thickenings or nodes, sparingly branched ; spores pale, violaceous by transmitted light, minutely warted, 6— 8a*. ’ ’ ( \ Lister, under the name D. nigripes , groups D. nigripes , B. xantiwpus and t). eximium, For the discussion of the differences among these forms I would refer to Maebride and to Lister. Massee, under the name of D. microcarpon , gives a description which differs considerably from Maebride Js description of D. nigripes. Maebride ’s. description is determinative and quite correct for my specimens. I find the spores, however, to have a diameter of 7—11/4. We have this species growing on dead oak leaves from Ceme¬ tery woods and Eagle Heights in July 1905, and on tobacco stems which were being used as an insecticide in the greenhouse in January 1913. Another group came from Winnequah, July 1904, and is on a little oak branch. Diderma reticulatum (Rost.) Morgan. 1875. Chondrioderma reticulatum Rost., Mon., p. 170. 1894. Biderma reticulatum (Rost.) Mo.rg., Jour Cin. Soc., p. 71. Maebride: “Sporangia gregarious, generally rounded and much depressed, flat, sometimes, especially toward the margin of a colony, elongate, venulose or somewhat plasmodiocarpous, dull white, the inner peridium ashen or bluish, remote from the cal¬ careous crust, which is extremely fragile, easily shelling off; columella indistinguishable from the base of thei sporangium, thin, alutaceous; capillitium of short, generally colorless, deli- Dean — The Myxomycetes of Wisconsin. 1247 cate, sparingly branching or anastomosing threads! perpendicular to the columella ; spores black in mass, by transmitted light violet tinted, smooth, 6-S/x.” He calls this our most common species, recognized by its rather large, white, depressed or flattened spor¬ angia tending to form reticulations. He says the lines of fruit¬ ing tend to follow the venation of the supporting leaf ; when the sporangium is round, the columella is a distinct rounded or cake¬ like body; when the fruit is venulose, the columella is less dis¬ tinct. Lister gives the synonym D . reticulatum to the form which he calls D. effusion, and refers to D. effusum as described by Mac- bride, and also to the form which Macbride calls D. reticulatum, as though the two forms were included in his one D. effusum. Macbride makes the two names apply to two distinct species, and says that D effusum “might be taken for an exceptionally plas- modic form of D. reticulatum but is distinguished by the ex¬ treme thinness of the fructification and its pure white color; it looks like a splash of whitewash . ’ ’ He gives the diameter of the spores of D. effusum, as 3-10 y, whereas those of D. reticulatum are 8-8y. Massce adopts the name CJt ron drio cl e rm a reticulatum , Rost. He says: “Plasmodium sessile, vein-like, flattened, arcuate, com¬ bined into an irregular network, seated on a whitish, delicate, reticulated, spreading hypoth alius ; columella absent; threads of eapillitium colorless, very thin, combined to form a dense net; spores smooth, obscure violet, 7-3y in diameter/ ’ Macbride ’s description is excellent for the specimens that I have, although I do not find them “following the venation of the supporting leaf.” The inner peridium in some of mine has a tinge of brown, while others are ashen or bluish on the same leaf. The spores I find to be smooth, 6-3 y in diameter. I have many groups on several kinds of both living and dead leaves, which I collected at Blue Mounds, July 23, 1904; some on dead oak leaves from Cemetery woods, July 21, 1904; and some on both living and dead leaves from Vilas wroods, July 18, 1904, 1248 Wisconsin Academy of Sciences, Arts and Letters. Diderma persoonii Macbr. 1899. Diderma Persoonii Macbride, N.-A. S.-M. p. 96. Macbride : ‘ * Sporangia sessile,, gregarious or closely aggregate, depressed, roundish, elliptical, elongate or plasmodiocarpous ; outer peridium pure white, smooth, fragile, remote from the inner, which is thin, ashen, or bluish, and inclined to iridescence ; colu¬ mella alutaceous or brownish, not distinguishable from the base of the fructification, the so-called hypothallus; eapillitium very scanty, short and nearly colorless, simple or slightly forked; spores violet-brown, smooth, 10-15. 5//.” He adds, as distinctive characteristics, that the inner peridium in good specimens shows a peculiar lustre of a coppery tinge unlike anything else. The spores, also, he considers as immediately diagnostic, large, nearly smooth, dark purple-brown in color. Lister gives the plasmodium as colorless or yellow; sporangia scattered, pulvinate on a broad base or forming irregularly elon¬ gated plasmodiearps, smooth, white : columella none ; the capilli- tium threads, he says, are flattened, usually broad at the base, branching dichotomously and slender above I he finds the spores usually faintly and closely warted, sometimes marked with stronger scattered warts, and 11-14// in diameter. He calls the species 7). dvjorme. Massee describes it as sessile on a broad base, convex, circular or irregularly elongated; columella absent or represented by a small accumulation of lime at the base of the sporangium. ; eapilli¬ tium scanty, sometimes almost obsolete, threads springing from the base of the sporangium, slightly attenuated upwards, forked, pale brown or colorless; spores globose, smooth, dingy violet, 10-13//. in diameter. In the one set of abundant specimens which I have I find no pulvinate sporangia, but many of the other forms mentioned above. The eapillitium is very scanty and short ; the spores are dark violet-brown, very minutely and closely warted, and I find them from 12 to 14//, in diameter. This collection was found growing on dead leaves of several kinds, and on dead twigs near¬ by, in the campus woods, July 20, 1904. Dean — The Myxomycetes of Wisconsin. 1249 Didenna spumarioides Fries. 1892. Diderma spumarioides Fries, Syst. Myc., III., p. 104. Macbride: “Sporangia sessile, crowded, spherical, or by mu¬ tual pressure irregular, white ; the peridium plainly double, but the layers adhering, the outer more strongly calcareous, but very frail, almost farinaceous ; hypothallus more or less plainly in evi¬ dence, white or pale alutaeeous ; columella distinct though often small, globose, yellowish; capillitium variable in quantity, some¬ times abundant, brown, somewhat branching and anastomosing outwardly, the tips paler ; spores minutely roughened, dark vio¬ laceous, about 10/*.” He says that although this species has the outward appearance of a Didymiuw ,, the crust is made up of minute granules of lime, not crystals. Lister describes the hypothallus as strongly developed and white: the columella convex or hemispherical, white or pale flesh -col ored ; spores spinulose, 8-10 y. Massee adopts the name Bidymium spumarioides Fr. He finds the columella sometimes almost obsolete ; spores warted, 9— 12 a. Macbride ’s description is as a whole adequate, but I fail to see the “peridium plainly double.7 ’ This might be Physarum cinereum, but that it has a columella in most sporangia, and has no calcareous nodes in the capillitium — these characteristics mak¬ ing a vital distinction, of course. I find the spores dark purplish, distinctly warted, and quite uniformly 10/x in diameter. We have one collection, made at Devil’s Lake, July 15, 1905, growing on a green moss and its ripe sporophyte setae ; another, having many variations of form, cn dead leaves, from the campus woods, July 1904. Biderma globosum Per so on. 1794. Biderma globosum Pers., Rom. N. Mag. Rot., I., p. 89. Macbride: “Sporangia more or less gregarious, sessile, globose, or by mutual pressure prismatic or polyhedral, white, the outer wall smooth, polished, crustaceous, fragile, far remote from the inner, which is thin, smooth or rugulose, irrideseent blue ; hypo¬ thallus usually pronounced and spreading beyond the sporangia, 1250 Wisconsin Academy of Sciences, Arts and Letters. sometimes scanty or lacking1 ; columella variable, sometimes very small, inconspicuous, sometimes large globose, ellipsoidal, even pedicellate; capillitium abundant, brown or purplish-brown, branching and occasionally anastomosing to form a loosely con¬ structed superficial net; spores globose, delicately spinulose, 8/*.” In his “key” to the genus Diderma , Macbride gives the spores as 8— 10m, in diameter. He adds that this species seems rare in this country ; that the only specimens so far are from Iowa; that it is distinguished by small spores and general snow-white color. Lister says in part: “The outer wall is egg-shell like, com¬ posed of globular lime-granules l-2.u in diameter; spores dark purplish brown, spinulose, 10-14/*. in diameter.” Massee adopts the name CJiondrioderma globosum Eost. He says the inner wall is cinereous, often iridescent; spores 8-10/a. I find most of the characteristics like those described above. The sporangia are noticeably two-walled, the outer wall at a distance from the inner ; the inner wall, while not noticeably bluish, yet is iridescent when held in sunlight; the columella is generalv white and varies in size even in adjoining sporangia; in one collection the hypothallus is abundant, in another it is scanty; the spores are from 8 to 12/t in diameter, none larger, and most of them 10/x, dark purplish, and distinctly spinulose. One group was found at the St. Louis Eiver, opposite New Duluth, August 2, 1897, on wood burned to charcoal ; another at Eagle Heights, near Madison, August 6, 1904, on green moss and dead oak leaves and twigs. Diderma crustaceum Peck. 1871. Diderma crustaceum Peck, Rep. N. Y. Mus., XXVI., p. 74. Macbride: “Sporangia closely crowded or superimposed, in a cushion-like colony, creamy- white, globose, imbedded in the sub¬ stance of the hypothallus, the outer peridium smooth, delicate cmsfaceous, fragile, remote from the blue iridescent inner mem¬ brane; hypothallus prominent: columella variable, generally present, globose ; capillitium dark colored, the threads branching and combining to form a loose net : spore-mass black, spores by transmitted light dark violaceous, delicately roughened, 12-1 5/x.” Lister classes this species with D. globosum , but Macbride says Bean — The Myxomycetes of Wisconsin. 1251 that D. globosum is rare in this country, and that almost every¬ thing distributed in he United States as D. globosum belongs in D. crustaceum. Lister’s description does not apply as closely to this species as does Macbride’s description of B. crustaceum. Under the name Ghondrioderma crustaceum Berl., Massee calls this species effused or circumambient, crowded, sessile, subglo- bose, smooth, white, outer peridium crustaceous, like the shell of some small egg. He finds the spores globose, black, about 13y. in diameter. Macbride’s description is accurate for the specimens which we have. We have collections from Blue Mounds, August 18, 1903; from Eagle Heights , Madison, August 31, 1904; another from Madison, no date; and one from Devil’s Lake July 14, 1906, on very much decayed leaves. Diderma, liemisphericum (Bull.) Horne. 1791. Reticularia hemispherica Bull., Cham,, de Fr.f I., p. 93. 1829. Biderma hemisphere cum (Bull.) Horne, FI. Ban., XI., p. 18. Macbride : “Sporangia gregarious, orbicular, discoid, de¬ pressed above and often umbilicate below, stipitate or sometimes sessile, the outer peridium white, fragile, crustaceous, soon break¬ ing about the margins, closely applied to the inner, which is deli¬ cate, cinereous, and ruptures irregularly; stipe about equal to the diameter of the sporangium, 1 mm., rather stout, calcareous but colored, brownish or alutaeeous, more or less tvrinkled longi¬ tudinally, the wrinkles when present forming veins on the lower surface of the sporangium : hypothallus small ; columella not dis¬ tinct from the thickened brownish or reddish base of the sporan¬ gium ; capillitium of delicate threads, mostly simple and color¬ less, often scanty; spores pale violaceous, nearly smooth, 8-9^. 99 Macbride adds that this is a well-marked species> easily recog¬ nized by its remarkable discoid or lenticular sporangia in the stipitate type. Lister’s description differs but little from Macbride’s. He says the plasm odium is white, the sporangium scattered, rarely confluent: often seated on a white hypothallus: spores pale vio¬ let-brown, almost smooth, 7-9 /x in diameter. Massee calls the stem pale ochraceous or whitish; columella 1252 Wisconsin Academy of Sciences , Arts and Letters. flattened, dingy red: mass of spores black with purple tinge ; spores dingy lilac, smooth. The above descriptions are accurate for my specimens. This species is indeed well marked. In the one large collec¬ tion which I have, there are both stipitate and sessile forms, and some confluent forms. The spores are about 8/a in diameter. They are on dead oak leaves, and were collected on a lawn in Madison, July 20, 1904. Brefeldia maxima (Fries.) Rost. 1825. Reticulari maxima Fries, Syst. Orb. Veg., I., p. 147. 1875. Brefeldia maxima (Fries) Rost., Versuch.,, p. 8. Saccardo : “ 2Ethalia nude, surface warted, purplish-black, resting upon a well developed silvery-shining hypoth alius; 3-6 cm. long and wide, 5-10 mm. thick ; spores purplish to brownish dusky black, globose, spinulose, 11-12/a in diameter. ” Maebride calls the aethalia papillate above. He says the spor¬ angia in favorable cases are distinct, indicated above by the pap¬ illae; columella obscure, black; capillitium abundant, the threads united by multifid ends to surround as with a net the peculiar vesicles. He gives the diameter of the spores as 12-15/a and calls them distinctly papillose. He states that in well-matured aetha- lia the sporangia stand out perfectly distinct, particularly above and around the margins. In the center of the fructification, next the hvpothallus, the sporangia are very imperfectly differ¬ entiated . Each filament bears at its middle point a pecu¬ liar plexus which embraces several large cysts or vesicles. Lister speaks of the spongy basal tissue continuing among the sporangia as folds forming distinct rigid columellae. Massee speaks of the surface as being rough with irregular wart-like nodules. He gives the diameter of the spores a 9 13-17/a. He adds: “Forming large pulvinate patches of irregu¬ lar form varying from 1-9 inches across.” This species is easily determined by the papillate character of the surface and the peculiar character of the capillitium, which is well described by Maebride. I find the spores to be 10-12/a in diameter. We have but one specimen, which was found in Madison in October 1882, growing upon what seems to be a mass of half-decayed leaves. I Bean — The Myxomycetes of Wisconsin. 1253 Stemonitis maxima Schweinitz, 1834. Stemonitis maxima Schw., N. A. F ., p. 260, No. 2349. Macbride : ‘ 1 Sporangia in more or less widely scattered tufts at first dark brown or purple black, at length gray, always with a purplish tinge, long cylindric, even, 10-15 mm. in height, stipitate; stipe polished, black and shining, about % the total height, expanded below into a thin hypothallus, which is con¬ tinuous, transparent, shining; columella dissipated near the apex; capillitium consisting of an inner network of very loose, open structure, an outer net of small 14-56/*) meshes more or less abundantly supplied with projecting peridial processes; spores dark violaceous, the surface reticulate, 7-8/*. ” He says this is the commonest American species. The rough-netted epispore in¬ stantly distinguishes it. The sporangia are long and slender in tufts, spreading from the center. The inner network of rich brown threads tends to show expanded nodes; sometimes the threads are thickened throughout. The columella often fails of reaching the apex of the sporangium, becoming completely dis¬ solved in capilitial branches. Lister adopts the name S. fusca Roth. ‘ ‘ Plasmodium white in rotten wood, maturing at the place of emergence. Total height 5-20 mm. Sporangia cylindrical, obtuse, stalked, brownish-pur¬ ple, at first closely fasciculate. Stalk black, shining, 1-4 mm, long, rising from a well developed brown membranous hypothal¬ lus. Columella reaching to near the apex of the sporangium.’ v He finds the spores grey or rufous- violet, reticulated with rows of minute spines or with raised bands, and 8-10 /i in diameter. He finds great variations in the surface-markings of the spores ; he finds sporangia widely differing in length and in stalks. Massee differs but little. He calls the walls blackish, reflect¬ ing metallic tints, evanescent; peripheral meshes of the capilli¬ tium much larger than the diameter of the spores ; mass of spores blackish brown ; spores globose, very minutely verruculose, 5-10/1, in diameter. A fine large species, distinguished amongst the dark-spored species by the large peripheral meshes of the capilli¬ tium. There is a great variation in the color and size of the sporangia and the proportion of the stipe, in the specimens that I have of 1254 Wisconsin Academy of Sciences, Arts and Letters. this species, as well as in the length of the columella, the charac¬ ter of the external net, and the number of the peridial processes. I find sporangia from 7 mm. to 15 mm. tall. The markings on the epispore, when visible at all, are determinative. The spores are always reticulated, dusky or purplish, and from 6 to Sy in diameter. Dr. Macbride determined for me one large group of very short and quite dark brown sporangia, found at Blue Mounds, July 1904. Collections: — Campus and cemetery woods, four collections, July 1904; small sporangia, Science Hall greenhouse, July 1904; from Blue Mounds a large and very beautiful group of long sporangia, June 13, 1904; another group of much shorter and darker sporangia collected on the same date and from the same locality, both collections made by Prof. R. A. Harper; and in July from the same locality a group of quite different general appearance. Stemonitis Morgani Peck, 1880. Stemonitis Morgani Peck, Boi. Gaz., V., p. 33. Macbride: “ Sporangia clustered irregularly, sometimes form¬ ing patches several centimeters in extent, rich purple brown in mass, cylindric, long, 15-18 mm., stipitate ; stipe black, polished, shining, rising from a common hypothallus, which extends as a thin silvery film beneath the entire colony, but does not trans¬ cend its limits ; columella black, percurrent, sparingly branched; capillitium of fuscous threads, within forming a network very open, the branches scarcely anastomosing until they reach the surface where they form the usual net of small meshes, pretty uniform in size, and presenting very few small, inconspicuous peridial processes ; spores brown, very minutely warted, about 8y. The clear brown tufts appear in fall, marvels of graceful elegance and beauty. At sight easily recognizable by the large size and rich color.” Lister adopts the name S. splendens Rost. He finds the plas- modium to be creamy-white ; the sporangia rising from a well- developed silvery or purplish hypothallus ; columella reaching to near the apex of the sporangium, rigid ; capillitium of purplish- brown threads, the principal branches springing at distant in- Bean — The Myxomycetes of Wisconsin. 1255 tervals from the columella, at first almost simple, suddenly- branching to form a smooth superficial net with rounded vari¬ ously shaped meshes. Spores pale reddish-purple, nearly smooth or minutely and closely wrarted, 7-9/x in diameter. The spores are remarkably constant in color and size, and in the minute, evenly distributed warts. The capillitium exhibits wide differ¬ ences. Massee finds the stem much shorter than the sporangium, black, shining. He thinks the spores smooth, and 6-7^ in diameter. The variations within the same species of Stemonitis make specimens of this genus extremely difficult to determine. I find the sporangia about 18 mm. tall ; there is almost no inner net, the main branches from the columella scarcely branching again until they reach the surface. The spores are minutely warted and 8/x in diameter. One group of sporangia which we have was obtained near Webster, growing on rotten wood, in the summer of 1894. A small group grew on the soil in the greenhouse in January 1913, Stemonitis Webberi Rex. 1891. Stemonitis Webberi Rex. Proe. Phil. Acad., p. 390. Macbride : ‘ 4 Sporangia clustered, usually in small tufts, rusty brown in color, 8-10 mm., including the stipe, which is jet black, shining, and much expanded at the base ; hvpothallus continuous, well-developed, a thin transparent pellicle; columella black, tapering upward, giving off at intervals the capillitial branches, and becoming dissipated just below the obtuse apex ; inner capil¬ litial network very open, the branches far apart, anastomosing but a few times before breaking into the surface net to form large, irregular meshes, 50-125^: spores minutely roughened, fuscous, 8-9 u„” Lister makes this a variety of S. splendens Rost., which is his synonym for S. Morgani. He gives no determinative character¬ istics. Massee does not have the name S. Webberi in his list. As is often the case among specimens of Stemonitis , this is difficult to determine. The sporangia are about 10 mm. ; the inner net is very loose, the outer net coarse, irregular, the 1256 Wisconsin Academy of Sciences, Arts and Letters. meshes from 15/a to 60/a. The spores are brownish, minutely roughened, 7-8/a in diameter. We have one collection, made near Wausau, in the summer of 1894. Stemonitis Smith!! Maebr. 1893. Stemonitis Smithii Maebr., Bidl. Lab. Nat. Hist, la., II., p. 381. Maebride : ‘ 1 Sporangia in clusters, close packed and erect, not spreading, bright ferruginous prior to spore dispersal, cylindric, stipitate, of varying height; stipe jet black shining, about one- third the total height; hypothallus generally well developed; columella black, gradually tapering, at length dissolving in cap- illitial threads and net some distance below the diminished plu¬ mose apex; capillitium of fuscous threads, the inner network of sparingly united branches uniformly thickened, the surface net composed of small, regular, polygonal meshes, the peridial pro¬ cesses few : spore-mass bright ferruginous, spores by transmitted light pale, almost colorless, smooth, 5-7/a. The species as now constituted includes forms varying in size from 2.5-25 mm.” Lister: “Plasmodium white. Total height 7-12 mm. Sporan¬ gia cinnamon -brown. Stalk 3-6 mm. long, arising from a mem¬ branous hypothallus. Capillitium as in S. fcmiginea, but the superficial net has rounded, more regular meshes, 5-10/a in di¬ ameter, and the threads of the meshes are often rather stout. Spores 4-6y in diameter. ’ ’ My specimens do not agree entirely with the above descriptions, but neither do they agree with that of S. ferruginea. The sporangia are from 7-12 mm. tall, but the stems are not over one-fourth the entire height. Many nodes of the inner network are broadened somewhat. The meshes of the outer net are not regular, and they vary from 5-14/a in diameter. The other char¬ acteristics, howrever, leave this species, without doubt, where I have placed it. One of my specimens was found growing upon much decayed wood in Madison, October 1901, one was found upon bark near Tomahawk, and a third upon wood near the Whirlpool rapids of the Wisconsin, in the summer of 1893. Bean — The Myxomycetes of Wisconsin. 1257 Comatricha longa Peek. 1890. Comatricha longa Peek. Rep. N. Y. Mus., 43, p. 70. Peek : 1 ‘ Stems growing from a shining membranous hypothal- lus, closely gregarious, penetrating the peridia as a columella, capillary, black; peridia narrowly cylindrical, generally elon¬ gated, 12-40 mm. long, often flexuous, very fugacious, its branches generally somewhat reticulately connected near their base and forming a few large meshes, externally divided into slender, sharp-pointed, divergent, spine-like branchlets, with free apices blackish; spores globose, even, .0003 to .00035 in. in di¬ ameter. ’ ’ Maebride describes this species as having sporangia crowded in depressed masses or tufts. He says the stipe is generally very short and the hypothallus black. He calls the spore-mass blue-black and the spores by transmitted light dark brown, glo¬ bose, w^arted, and about 9/x in diameter. He says the sporangia, though generally about 20-25 mm., occasionally reach 50 mm. Lister notes the further fact that the columella is wavy, with angular flexures in the upper part, tapering in breadth from' 20 fx at the base to 2y near the summit, and that the terminal branches of the capillitium are rigid and fork at an acute angle. He calls the spores dark gray, spinulose, the spines usually con¬ nected by faint lines forming a reticulation. Massee includes this species in the genus Stomonitis, calling it S. longa Massee. He finds the axils of the capillitium branches usually rounded, and often occupied for some distance by a thin membrane, sometimes connected laterally. He finds the spores to be very minutely reticulated, 7-8 y in diameter. The specimen which I have shows the general characteristics as described above. The sporangia are from 30 to 40 mm. long. The authorities whom I have quoted differ in regard to the epis- pore. I find Ihe spores to be finely reticulated, but by very narrow bands so much raised above the surface as to look along the border like a regular row of sharp spines. I find the spores to be dark brown and 9 ^ in diameter. My one specimen I found in the campus woods near the lake, growing upon smooth bark, in October 1903. 1258 Wisconsin Academy of Sciences , Arts and Letters. Comatricha nigra (Pers.) Schroeter. 1791. Stemonitis nigra Pers.. Gmel., Syst. Nat., p. 1467. 1889. Comatricha nigra (Pers.) Schroeter, Fils, schles., p. 118. Maebride: “Sporangia scattered, ferruginous or dark brown, globose or ovoid, stipitate; stipe long, hair-like, tapering upward, black ; hypothallus none ; columella rapidly diminishing toward the top, at length dissipated; capillitium of slender flexuous threads, radiating horizontally, repeatedly branching and anas- tomozing to form an intricate dense network, from the surface of which project a few short hook-like peridial processes; spore- mass black, spores by transmitted light dark violaceous, smooth or nearly so. 7-10/x in diameter. This species is easily recog¬ nized bv its almost globose sporangia mounted on long, slender stalks These are 2 or 3 mm, high and generally persist a long time after the sporangium has fallen. ” Saccardo adopts the name C. friesiana (De By.) Rost. He does not differ from Maebride in his description. Massee adopts the name Stemonitis friesiana De Bary. He states that the sporangium wall is very thin, disappearing, whit¬ ish with a silver sheen or purple black. He also speaks of the stem expanding at the base into a small, circular, irregularly; ribbed or latticed hypothallus. The wall I have not seen. The hypothallus as he describes it shows plainly under the micro¬ scope. but is not noticeable without a lens. Lister gives the total height of this species as from 1 to 6 mm., the color as purplish brown. He finds the capillitium threads an¬ astomosing and branching in semicircular curves. This character of the branching I do not find to be constant. The spores he describes as nearly smooth, or minutely and closely spinulose. I find the globose or ovoid sporangia with their long stipes quite determinative; and the long, slender columella, with the capillitium threads freely branching from its entire length, pre¬ vent its being taken for a Lamproderma. It agrees in general with the descriptions given above, though I find the spores smooth or nearly so, not spinulose. Our one specimen I found growing upon a small, very hard, decorticated oak branch in the campus woods, July 18, 1904. Bean — The Myxomycetes of Wisconsin. 1259 Comatricha stemonitis (Scop.) Sheldon. 1772. Mucor stemonitis Scopoli, FI. Cam., II., pp. 493-494. 1895. Comatricha stemonitis (Scop.) Sheldon, Minn. Bot. Stud., p. 473. Macbride: “ Sporangia gregarious, scattered, cylindric, erect, sometimes arcuate, obtuse, 2-3 mm. high, at first silvery, then brown, as the peridium vanishes, stipitate; stipe black, about one half the total height or less ; hypothallus distinct, more or less continuous, reddish brown ; columella tapering upward, black, attaining more or less completely the apex of the sporan¬ gium ; capillitium arising as rather stout branches of the colum¬ ella, soon taking the form of slender, flexuous, brownish threads, which by repeated anastomosing form at length a close network, almost as in Stemonitis, the free ultimate branches very delicate and short ; spore-mass dark brown ; spores by transmitted light, pale, almost smooth, except for the presence of a few scattered but very prominent umbo-like warts, of which four or five may be seen at one time, 5-7. 5/l in diameter.’ ’ Lister adopts the name C. typhoides Rost. He gives but little in his description differing from the above. He says the capillitium varies in the closeness of the network, and that forms occur in which the threads are less flexuose. He finds the spores to be pale lilac-brown, marked with 3-5 dark, flattened warts on the hemisphere, and 3.5 to 7/x in diameter. Saecardo calls the spores smooth and from 4.5 to 5/x in di¬ ameter. The specimens which I have agree very closely with Macbride ’s description. Remains of the violet-tinted peridium are upon the apices of many of the sporangia. The spores are quite de¬ terminative — the few umbonate warts being very characteristic. One specimen was found growing on dead soft wood, at Edge- wood, Madison, July 18, 1903; two at Elmside, July 15, 1904, one being on a much decayed oak stump and the other on a dead poplar log; another on the inside of poplar bark found in the cemetery woods, July 21, 1904; another on poplar wood found, in the campus woods, July 22, 1904; another on dead wood found on the Windsor road, July 30. 1260 Wisconsin Academy of Sciences, Arts and Letters. Comatricha Persoonii Rost. 1875. Comatricha Persoonii Rost., Mon., p. 201. Macbride: “ Sporangia gregarious, erect, cylindric, obtuse, pale brown, stipitate ; stipe short, one-half to one-third the total height, 1-1% mm., black, slender, even ; hypothallus thin, scanty, transparent or white ; columella black, tapering gradually to the apex, or very near it ; capillitium very dense, formed of flexuous fuscous threads, branching abundantly, especially outwardly, and ending in numerous short, free tips; spores covered with distinct but scattered warts, pallid, tinged with purple, 9-10/a.” Macbride also says: “This species in form and stature closely resembles C. tyhina, but differs in the capillitial structure and the epispore markings. In these particulars it more nearly cor¬ responds with C. pulchellai, from which its slender cylindric form and blunt, sometimes widened apex distinguishes it.” Lister has no single species to which this corresponds. Massee does not recognize the genus Comatricha , but puts all of these forms in the genus Stemonitis. He does not give C. Persoonii among his synonyms, and does not describe any form which corresponds to this as Macbride describes it. Of this species I have but one group. I find the sporangia, including the stipe, from 2 to 3 mm. high, the stipe alone %■ to 1 mm. The spores are dusky, warted, and about Sfi in diameter. This collection was made in Vilas woods, July 16, 1904. Comatricha flaccida (Lister) Morgan. 1894. Comatricha flaccida (Lister.) Morgan, Jour. Cin. Soc., p. 51. Macbride: “Sporangia semi-erect, closely crowded in tufts an inch or two in diameter, ferruginous, from a dark brown hypothallus, sessile or short stipitate; columella weak, crooked, percurrent, generally enlarged irregularly at the apex; capilli¬ tium of few slender brown branches which anastomose sparsely and irregularly ; spore-mass ferruginous brown; spores by trans¬ mitted light bright reddish brown, minutely warted, 8-10^.” Lister adopts the name Stemonitis splendens Rost., but al¬ though Macbride gives this name (var. flaccida) as a synomym, Dean — The Myxomycetes of Wisconsin. 1261 Lister ’s description does not agree very well with either Mac- bride ’s description or my specimen. Lister says the plasmodium is creamy white, maturing at the place of emergence, which 1 find to be true. He says the sporangia are at first closely fasci¬ culate. I find them persistently so at and after maturity. He describes a superficial net of the capillitium which I fail to find, and the lack of which causes Macbride to place this species in the genus Comafricha . My specimen agrees with Macbride ’s description. I have one specimen, growing on poplar wood, found in the cemetery woods October 22, 1903. Diachea leucopoda (Bull.) Rost. 1875. Diachea leucopoda (Bull.) Rost., Mon., p. 190. Saccardo : “Peridia cylindrical, obtuse, stipitate; stipe short, base thickened, snow-white, lengthened within the peridium into a white cylindrical columella which does not reach the obtuse vertex of the peiridium; capillitium threads white, slender; spores dark violet, iridescent, 6-8/x in diameter.” Macbride adds to the above characteristics that the sporangia are rather closely gregarious, metallic blue, or purple iridescent, cylindrical or ellipsoidal and sub-umbilicate below. The hvpo- thallus is white, venulose, occurring from stipe to stipe to form, an open network over the substratum. The capillitium threads he calls brown, which agrees with the specimens that I have. The spores in mass he finds to be nearly black. I find them slightly iridescent. The spores he calls dull violaceous, min¬ utely roughened, 7-9^ in diameter. The peridium is exceed¬ ingly thin and early deciduous ; the stipe long persistent. Lister finds the stalk to be stout, brittle, furrowed, one-thircl or one-half the height of the sporangium. He finds the capil¬ litium of profusely branched and anastomosing threads connect¬ ing the columella with the sporangium wall, dark violet-brown, colorless at the extremities. The spores he calls minutely spinulose. Massee adds nothing new to the above descriptions. T find this beautiful little species easily determined from its very white stipe and its dark iridescent sporange. The whole sporange is quite likely to disappear early, leaving sometimes a 1262 Wisconsin Academy of Sciences , Arts and Letters. large number of the white conical stipes without a single spor- ange to show what it had been. I have specimen gathered at Blue Mounds, August 18, 1903, of which none of the sporanges remain ; the white stipes covering the setae of a green moss. Two specimens in which this species was growing on leaves, grass, moss and small twigs were found opposite Fond du Lac, July 28, 1897. Not many of the spor¬ anges remain on the stipes of these. I found some fine speci¬ mens in the cemetery woods, July 21, 1904, and two lots were found at Blue Mounds, July 23, 1904. Of these last some were growing on a piece of dead twig which was about three-fouirths of an inch in diameter, some on a living green fern frond, and a great quantity on dead leaves which had lodged beside a de¬ cayed log. Specimens found in Vilas woods, July 28, 1904, in¬ clude one group on a thick dead oak leaf, the hypothallus in this showing its venulose character very beautifully. Another group on many green leaves and stems was found at Blue Mounds, July 13, 1907. ” Lamproderma violaceum (Fries) Rost. 1829. Stemonitis riolacea Fries, Syst. Myc., III., p. 162. 1875. Lamproderma violaceum . (Fries) Rost., Mon., p. 204. Macbride: “Sporangia closely gregarious or scattered, de¬ pressed globose, more or less umbilicate below, metallic blue or purple, sessile or short stipitate; stipe stout, dark brown or black, even; hypothallus when the sporangia are crowded, a thin, continuous, purplish membrane; when the sporangia are scattered, the hypothallus discoidal; columella cylindric or tap¬ ering slightly upward, the apex obtuse, black, attaining the center of the sporangium; capillitium lax and flaccid, made up of flexuous threads branching and anastomosing to form a net¬ work, open in the interior, more dense without, the threads at first pale brown as they leave the columella, becoming paler out¬ ward to the colorless tips; spores minutely warted, violaceous gray, 9-ll^u. When the sporangia are empty the pallid extrem¬ ities give a whitish appearance to the little spheres. Only when the spores are ready for dispersal does the peridium assume its rich metallic purple tints. 5 ’ Saccardo’s description does not differ from the above. Bean — The Myxomycetes of Wisconsin . 1263 Lister speaks of the capillitium threads as springing from the upper part of the columella. He gives the total height of the fruit-body as 0.6 to 1.5 mm. Massee says the branches of the capillitium spring from the apex and sides of the columella. He calls the spores smooth and 9-12/* in diameter. I find Macbride’s description to be the most satisfactory for my material. The peridium is evanescent, but the fragments remaining are of an intense metallic violet-blue. The capillitium is attached almost entirely to the top of the columella, the points of attachment not extending below the rounded edges of the truncated top. The spores I find violaceous, evidently warted, and 9-11 n in diameter. Large groups of this species were found at the mouth of the Brule River, July 17, 1897, growing on the stems of green moss, and at Sturgeon Bay, July 24, 1907, growing on dead leaves and twigs in the woods. Reticularia lycoperdon Bulliard. 1791. Reticularia lycoperdon Bulliard, Champ, de la France , p. 95. Saccardo: “Spores, columella, and capillitium brown, cortex also of the same color, opaque, thin, silvery-smooth or unequally covered with warts: spores reticulated upon half their surface, 8—9/4 in diameter. Macbride’s description is much more complete: “JEthalium pulvinate, 2.8 cm. broad, at first silvery white, later less lustrous, the cortex irregularly and slowly deciduous ; hypothallus at first conspicuous as a white margin extending round the entire aetha- lium, evanescent without, but persisting as a firm membrane beneath the spore-mass : spore-mass umber. ’ ’ He calls the reticu¬ lated portion of the spore-surface about two-thirds, and says the remaining portion is slightly warted. Lister describes the capillitium as consisting of the persistent remains of the sporangium walls, forming irregular chambered and branching strands arising from the hypothallus, dividing above into numerous flattened and delicate flexuous threads. He speaks of the spores as somewhat turbinate, thickened and closely 1264 Wisconsin Academy of Sciences , Arts and Letters. reticulated on the rounded side, the remaining part marked with scattered warts. He gives their size as 6-8/a in diameter. Massee describes the color as varying from dull umber, through reddish-brown to pale gray with silver lustre. He also speaks of the slender anastomosing branches of the capillitium. He calls the spores 7-9/a in diameter. The one specimen which I have is about an inch and a half long, a beautiful silvery- white, cortex slightly roughened. Lis¬ ter has described the character of the capillitium as I find it, quite exactly. I find the spores as he describes them, appearing turbinate in some positions ; but the reticulated portion is more nearly two-thirds than a half, as given in the original descrip¬ tion. The edge of the reticulated portion stands out from the remainder of the surface in quite a marked way, as if a part had been cut off. I find the spores to be from 7 to 11/a in diameter. This specimen was found growing on the bark of an erect maple in Madison, October 18. 1901. Enteridium rozeanum Wing. , 1892. Enteridium rozeanum Wingate, Macbr., Bidl. Lab. Nat . Hist. Iowa , II., p. 117. Massee gives Wingate’s original description, which I quote in part: “iEthalium of irregular shape, globose, ovoid, or round¬ ed pyramidal, attached to the substratum by a wide base. Vari¬ able in size from 5-30 mm. in diameter. Cortex and mass of spores ferruginous brown; occasionally the cortex shining; sometimes membranous, pellucid . The walls of the spor¬ angia (which form a capillitium) membranous, pellucid, band¬ like, combining into an all-sided network attached uniformly to all sides of the cortex. The bands have triangular or polygonal expansions at the angles where they join each other. Spores globose, about two- thirds of the surface covered with a delicate, regular, fine-meshed network, the remainder with simple warts or elongated ridges . Spores measure 7.5-9/a.” Macbride adopts the name given b}' Morgan, E. splendens . His description adds to the excellent one given above: “iEtha- lium pulvinate, even, or somewhat irregular, unevenly swollen or inflated, lobate or compound, covered by an exceedingly thin, generally smooth, shining, but never wdrite pellicle or cortex; Bean — The Myxomycetes of Wisconsin. 1265 .... hypothallus white, often wide extending . Easily distinguished by its brown color and smooth, shining, though un¬ even surface.” Lister does not differ from the above quoted descriptions. The foregoing descriptions are very satisfactory. I have found small specimens of this species growing in the midst of Ly cogala epidcndrum of about the same size. There was, how¬ ever no difficulty in distinguishing them. The Enteridium ro- zeanum has generally a broader base, and always more or less of a thin light brown, often white, hypothallus partly or wholly surrounding it. The surface, too, is more irregular and of a redder brown than the Lyc-ogala. Many are pulvinate and lobed. Those I have vary from % to 6 cm. in length. I find the spores to be more regularly globose than those of Reticularia ly coper- don, and with less of the surface reticulated — not more than half, with the rest of the spore minutely roughened ; spores 7 -9 ix We have two specimens from "Wisconsin which do not have the exact locality and date given; another from near Webster on dead wood, collected in the summer of 1894; one from Blue Mounds, October 4, 1902 ; three from Madison, 1901 ; several marked Madison, October 14, 1897 ; several Madison, October 19, 1901 ; and a large number from the cemetery woods, Madison, October 20, 1903. Many of the latter show large tubules, whit¬ ish inside, extending to or above the surface, which have been made by insects. In some of these tubules the dead insect is still to be found. Macbride says in his description, ‘ ‘ capillitium none,” yet on Plate I. of the same book he gives a figure which he, on the op¬ posite page, calls the capillitium of this species. The illustra¬ tion agrees with the structure which I find in the interior of the sethalia. Lindbladia effusa (Ehr.) Rost. 1818. Licea effusa Ehr., Sylv. Myc. Ber., p. 26. 1875. Lindbladia effusa (Ehr.) Rost., Mon., p. 223. Saccardo: ‘‘JSthalia nude, upon a common well-developed hypothallus, cortex very early becoming dry and dark, thick, brown, shining, wrinkled: spore-mass ochraceous or umber- brown; spores clear, brownish, smooth, 6-7g.” 1266 Wisconsin Academy of Sciences, Arts and Letters. Macbride gives a fuller description than the foregoing. “Sporangia minute, either closely combined and superimposed, so as to form a pulvinate sethalium, or crowded together in a single layer, sessile or short stipitate; the peridia thin, mem¬ branous, marked by scattered plasmodic granules, often lustrous, sometimes dull lead-colored or blackish, especially above ; stipe, when present, very short but distinct, brown rugulose.” He calls the spores nearly smooth, almost colorless, 6-7. 5ft, in di¬ ameter. He adds that the sporangia are sometimes free and even short-stipitate. In the more complex phase the sporangia are heaped together in a pulvinate mass. The hypothallus is a prominent feature. Lister’s description varies but little from the foregoing. He speaks of the sporangium- wall as membranous, yellow-brown, uniform, beset with scattered clusters of dark, round, plasmodic granules, ly in diameter. He calls the spores faintly warted, 4-6/x in diameter. Massee makes this species a Tubulina (T. effusa Massee). His description contains nothing different from the above except that he calls the spores yellowish-brown, very indistinctly ver- rueulose, 6-8 y in diameter. He adds: “Often forming compact, flattened cakes extending for three or four inches.” We have fine specimens on moss and the decayed wood on which the moss grew; the masses are from one-half to two and one-half inches long, the most of each mass in a single stratum and thin, but in some places the sporangia are superimposed; the hypothallus is very marked but not extending beyond the sporangia ; sporangia not noticeable wrinkled ; capillitium none ; spores almost colorless, faintly warted, 6— iy in diameter. These specimens vrere collected near Wausau in the summer of 1394. Tubifera ferruginosa (Batsch) Macbr. 1786. Stemonitis ferruginosa Batsch, Eleuch., p. 261, fig. 175. 1791. Tubifera ferruginosa Gmelin, Syst. Nat., p. 1472 (ex parte). Macbride: “Sporangia crowded, cylindric or prismatic, elongate, connate, more or less distinct above, pale umber brown, generally simple though occasionally branched above, the per- Bean — The Myxomycetes of Wisconsin. 1267 idia thin, sometimes fragile, but generally persistent, transpar¬ ent iridescent ; hypothalius strongly developed, spongiose white, often projecting beyond the sethalioid mass of sporangia; spore- mass umber-brown or ferruginous; spores by transmitted light almost colorless, plainly reticulate over three-fourths of the sur¬ face, 6-7/x. Not rare on old logs, mosses, etc., from Maine to Alaska. Apparently more common north than south. Easily known by its long, tubular sporangia packed with rusty spores and destitute of any trace of columella or capillitium, the hypo- thallus explanate, rather thick, but not columnar. A single plasmodium may give rise to one or several colonies, at first watery or white, then red, of somewhat varying shades, then finally umber-brown. ’ ’ Macbride goes on to say that the peridia are sometimes acuminate, and widely separate above. In most cases, however, the peridia are connate throughout, and some¬ times present above a common membranous covering. Saccardo adopts the name Tubulin a cylindrica (Bull.) D. C. He calls the spores 5-6u in diameter. Lister differs from the above description in his measurement of the spores, which he gives as 7-9/x. He also says that the sporangia when immature and pulpy are of a beautiful straw¬ berry color. The two specimens which I have were found at Watertown, August 31, 1903. They were growing quite close together on the end of a decayed piece of wood. They are well-rounded masses about two-thirds and seven-eighths of an inch in diameter respectively, each on an inconspicuous white hypothalius. When found they were bright red. When fully ripe they become umber-brown. Macbride ’s description seems accurate for these specimens. Later, on July 9, 1904, a mass of this species nearly covering a space 4 by 5 inches was found growing on much-decayed wood at Blue Mounds. Another small specimen I found at Blue Mounds, July 23, 1904. 1268 Wisconsin Academy of Sciences, Arts and Letters. Tubifera stipitata (Berk. & Ray.) Macbr. 1868. Licea stipitata Berk, and Rav., Jour. Linn Soc , X p 350. 1875. Tubulim stipitata (Berk. & Rav.) Rost. Macbride : Sporangia crowded in a globose or more or less hemispheric, expanded head, borne upon a spongy, stem-like, sili¬ cate hypothallus, their apices rounded, their walls very thin, evanescent ; spores in mass umber-brown, small, about 5y, the epispore reticulate as in T. ferruginosa. This species differs from T. ferruginosa chiefly in the cushion-like receptacle on which the crowded sporangia are borne, and in the smaller spores.” Saccardo adopts the name Tubulina stipitate (Berk. & Rav.) Rost. He differs from Macbride in calling the spores delicately warted. Lister finds the spores to be minutely reticulated over the greater part of the surface, the remaining part smooth or marked with ridges, and 3 to 5/m in diameter. Massee adopts the name Tubulina stipitata Rost. He describes the spores as having about three-fourths of the surface covered wdth a regular small network, the remainder with much larger meshes. I find the distinctive points of this species to be the stem-like hypothallus, and the small size of the spores. The spores are finely reticulated over the greater part of the surface, the re¬ mainder having a very irregular network of rather coarse ridges. The one group of specimens which I have was found in Vilas woods, July 16, 1904, growing on much decayed oak. Cribraria aurantiaca Schrad. 1797. Cribraria aurantiaca Schrader, Nov. Gen. PI., p. 5. Saccardo: “ Sporangia gregarious, spherical, more or less cernuous, stipitate, tawny to dark tawmy ; stipe attenuate above, dusky ; calyculus well developed, hemispherical, the margin armed wTith short acute teeth ; nodules commonly much branched, the apices prolonged so as to at length join with one another; Bean — The Myxomycetes of Wisconsin. 1269 spores from pale golden to dusky yellow, smooth, 5-9/x in di¬ ameter. ’ ? Macbride adds a very important distinction — that the caly- culns is more or less distinctly marked by fine delicate radiating venules. He finds that the net forms rather large three- to five¬ sided meshes with small, irregular, brownish nodules and show¬ ing only here and there a free extremity. He also states that this species is generally recognized by the large sporangia, 0.5- 0.9 mm, the comparatively short stipe, simple net, and more or less orange color, the colour being uncertain. Lister describes the calyculus as one-third the height of the sporangium, and beset with round plasmodic granules 0.5 to ly. in diameter, arranged in close lines radiating from the base. I find this, description very good for the character of the caly¬ culus. Massee adds that the sporangia are scattered, which I find to be true. They are never crowded. My specimens agree with the above quoted descriptions. Among the ripe sporangia I found a small quantity of little intensely black and shining droplets, which may have been im¬ mature sporangia. Many of the ripe ones which had not lost their spores had a tiny black spot on top. I tried to induce the black droplets to develop in a moist chamber, but they at once became covered with a white mold and failed to develop. I made a large collection of this species from a decayed oak stump at Elmside, Madison, July 15, 1904. Cribraria dictydioides Cke. and Balf. 1881. Cribraria dictydioides Cke. and Balf., Rav. Fung. Am., 475. Macbride: < ‘ Sporangia gregarious, of medium size, globose, eernuous, stipitate ; the stipe long, slender, tapering upwards, dull brown in color; hvpothallus none; the calyculus variable, sometimes well-developed, as in C. aurantiaca , sometimes rudi¬ mentary or represented only by irregular node-like ribs; the network delicate, the meshes small, few-sided; the nodules large, prominent, brown, irregular, with many radiating, free project¬ ing threads, besides the single continuous filaments which pass 1270 Wisconsin Academy of Sciences, Arts and Letters. from node to node; spore-mass pale, ochraceous ; spores nearly smooth, colorless, 5-7 He says that this seems to be the most common Cribraria in the Mississippi valley, and that it is generally distinguished by the scant calyculus and the beautiful richness of its complex net; that the calyculus is often entirely absent, and this would seem to be the typical condition. The rather large sporangia, 0.6 mm., and the especially numerous radiating threads, seem to be the most distinctly diagnostic characters. Lister places this as a variety dictydioid.es of C. intricata Schrad, He finds1 the cup almost or quite obsolete; the nodes in the lower part of the net elongated and confluent, forming ribs converging to the apex of the stalk. Massee: gives as the most distinctive characteristics: perman¬ ent ribs broad and flattened below, anastomosing laterally, filled with granules, passing upwards into numerous elongated or ir¬ regularly angular, prominently convex, colored nodes containing granules, and connected at various points by very thin, color¬ less threads ; the spores minutely verrucose. 5-7 y in diameter. The variability of the calyculus makes this species sometimes difficult to determine. In one collection that I have, the caly¬ culus is entirely absent, the sporangia having only ribs and nodules. In another, the calyculus is quite noticeable. The spores I find to be colorless and about by in diameter. Our specimens are on much-decayed wood, and were found in Yilas woods in July 1904, and at Mauston, in June 1905. Cribraria tenella Schrader. 1797. Cribraria. tendla Schrad., Nov. Gen. PI. , p. 6 Mach ride: “ Sporangia gregarious, small, 0.4-0. 5 mm. in di¬ ameter, olivaceous or ochraceous, long-stipitate, nodding; stipe slender, dark brown or blackish, very long, reaching 6 mm., weak and flexuous; calyculus variable, sometimes well-defined, brown, costate, sometimes represented, by the costae only con¬ nected by a thin, transparent membrane ; net well differentiated, the meshes small, irregular, the nodes small, black, more or less globular, prominent, connected by transparent threads with oc¬ casional or numerous free ends : spores in mass olivaceous-ochra- ceous, under the lens pallid, globose, smooth, 5-7y. Generally Bean — The Myxomycetes of Wisconsin. 1271 easily recognized by its very long stipe, small globose sporangium dotted with numerous small roundish nodules projecting plainly above the general surface. The obconic calyculus is always re¬ presented in the outline, if not in definite structure.’’ Lister calls the cup one-third the height of the sporangium, or more or less obsolete. The nodes are connected by three to six very slender threads, and few or no rays. Massee finds the calyculus occupying about half the sporan¬ gium, often perforated above. The description of Saccardo does not differ essentially from the above. The specimens which I have agree with the above descriptions in general. The calyculus is variable, as Macbride has said. My one collection of specimens was found at Madison, May 1902, growing on much weather-worn soft wood, mixed with the ripe sporangia of Uemitrichia elavata. Bictydhun cancellation (Batsch) Macbr. 1789. Mucor cancellatus Batsch, Blench. Fung., II., p. 131. 1889. Biotydium cancellatnm (Batsch.) Macbride, M.-A. S.-M., p. 172. Macbride gives the best description : ‘ 1 Sporangia gregarious, depressed globose, nodding, the apex at length umbilicate, stipi- tate, in color brown, or brownish purple ; the stipe varying much in length from two to ten times the diameter of the sporangium, attaining from 5 to 6 mm., generally erect, more or less twisted and pallid at the apex, below dark brown, with hypothallus small or none ; calyculus often wanting, when present a mere film connecting the ribs of the net; the net made up chiefly of meridional ribs connected at intervals by transverse parallel threads, above an open Cribraria- like network closing the apex and more or less rudimentary; the spores varying in color through all shade of brown and purple when seen in mass, by transmitted light reddish, 5-7^, smooth or nearly so.” Saccardo adopts the name B. cernuum (Pers.) Nees. He calls the spores yellow-brown, smooth, and 4-5y in diameter. Lister calls the color red-brown ; the spores pale red, minutely wanted, and from 4— 7w in diameter. He finds the spores “usu- 1272 Wisconsin Academy of Sciences , Arts and Letters . ally with two to four purple plasmodic granules on the spore wall.” Massee adopts the name L. cernuum Nees. His description agrees essentially with the foregoing. In the specimens which I have I find some of the spores with the purple plasmodic granules mentioned by Lister, but I think their connection with the spores is accidental, the granules hav¬ ing been separated from the ribs and merely touching the surface of the spores. I find the spores by transmitted light not reddish but rather faintly yellowish, nearly colorless and smooth. The meridional ribs of this species render the determination certain. One of my specimens from the campus woods, July 18, 1904, and another from a different part of Madison, growing on de¬ cayed wood, are of a decided purplish tinge; another from the cemetery woods, July 9, 1904, is a light rusty-brown, showing no hint of purple, and three gathered in Vilas woods, July 1.6, 1904, and one at Blue Mounds, July 8, 1904, are brown with a more or less purple tint. All are on wood except one of the Vilas woods specimens, which is partly on a thin bark. Lycogala epidendrum (Buxb.) Fries. 1721. Lycoperdon epidendron, etc., Buxbaum, En, PI. Hal., p. 203. 1829. Lycogala epidendrum (Buxb.) Fries, Syst. Myc ., III., p. 80. Saccardo: “HOthalia gregarious, spherical, shining, warted, at first pink, then red, at length ashen or dusky ; spores and cap- illitium various colors, pink, purple, violet-red, at length pale, lead-color or gray ; spores smooth. 3-5/* in diameter.” Macbride has found the gethalia solitary as well as clustered. He calls: them depressed-spherical, or when crowded, irregular, 3-10 mm. in diameter. He finds them dehiscing irregularly, but more often near the apex. He adds : ‘ ‘ Peridium thin, but tough and persistent, made up of numerous agglutinated tubules, en¬ closing in their meshes peculiar cell-like vesicles; capillitium parietal, consisting of long, branching, and anastomosing flat¬ tened tubules extending inwardly among the spores, everywhere marked by transverse wrinkles, ridges and warts, the free ends of the ultimate branchlets rounded, concolorous with the spores ; Bean — The Myxomycetes of Wisconsin. 1273 • . . spores by transmitted light colorless, minutely rough¬ ened or reticulate, 5-6/*. ” Lister’s description agrees with those already given excepting as to the size of the spores, which he gives as 5-7/* in diameter. Massee finds the diameter of the capillitium thread 8-12/*, its tube soon collapsing; he finds the spores minutely but distinctly warted and from 4 to 6/* in diameter. The above descriptions are fairly correct for my specimens. I find the capillitium to be of long, branching, anastomosing tubes from 3 to 21 /* thick, wrinkled, with free ends which are elavate, spherical, or merely rounded off. The spores are min¬ utely roughened, 6-7/* in diameter. We have specimens from upwards, of a dozen different locali¬ ties in the state, including the Lake Superior region. This species seems to be one of the most common and most plentiful. We have it collected April 29, 1904, at Blue Mounds, evidently just grown. We have collected it in July, October, and November. We have three groups of asthalia growing on three different species of Polyporus, one on wood charred by fire, on cedar, oak, and poplar, both on wood and bark, and on moss and the decayed wood on which the moss is growing. Lycogala fiavo-fuscum (Ehr.) Rost. 1818. Biphtherium fiavo-fuscum Ehr., Syl. Myc. Berol ., p. 27. 1873. Lycogala fiavo-fuscum (Ehr.) Rost., Versuch., p. 3. Mlthalia spherical, surface opaque, smooth or indistinctly retic¬ ulate, brownish-gray ; spore and capillitium-mass brownish- gray; spores delicately minutely spirmlose 3.3-5. 8/* in diameter, of a faint clay color. Macbride speaks of the aethalia as solitary or two or three together, 2-4 cm. in diameter, purplish-giray or brown, smooth, shining ; the peridium showing two or three layers in microscopic section; capillitium of abundantly branching, irregular, trans¬ parent tubules, marked by numberless warts and transverse rings or wrinkles; he calls the spore-mass yellowish gray, the spores by transmitted light colorless, smooth or faintly reticulate or roughened, 5-6/* in diameter. He says this species is generally mistaken for a puff-ball. 1274 Wisconsin Academy of Sciences , Arts and Letters. Lister states that the middle layer of the peridium is an aggre¬ gation of yellow vesicles intermixed with the peripheral ends of the capillitium, the inner layer homogeneous, pierced by the eap- illitium threads : he gives the diameter of the threads as 6 to 20/* or more, and speaks of their having numerous blunt-ended free branches. Massee gives as the diameter of the sethalia 3-9 cm. He calls the tubes of the capillitium rather scanty, 4-5/x thick, slightly rugulose or with indistinctly raised bands. The specimens which I have are from 2-3.5 cm. in diameter, brownish-grav, surface shining, under the hand lens showing reti¬ culations. The spores agree with Maebride’s measurements, 5— 6(u. I find them faintly reticulate and colorless. The capilli- tium is distinctive and would separate it at once from the Reti- cuiarias or Enteridiums, with which it might be confounded. The capillitium thread is very broad in places, even 45/*, in others as narrow as 6/*; it is irregular, branched, wrinkled, minutely warted, with blunt ends. It resembles the capillitium of L. exi- guum except in width. The color under the microscope is pale yellow. The figures given in Lister, PI. LXXV., A, are correct for the capillitium as I find it. This species does not seem to be common ; our eight specimens are from Madison, collected in September, 1901, and November 16, 1894; one group of three aethalia growing on dead maple bark. Ly cogala exiguum Morg. 1893. Lycogala exiguum Morg , Jour. Gin. Soc.} p. 134. Morgan: “iEthalia small, globose, gregarious, the surface dark brown or blackish, minutely scaly, irregularly dehiscent. The wall thin ; the vesicles with a dark polygonal outline, disposed in thin reticulate patches, which are more or less confluent. The tubules appear as an interwoven fibrous stratum upon the inner membrane : they send long slender branched extremities inward among the spores. Spores in mass pale ochraceous, globose, nearly smooth, 5—6/* in diameter. Growing on old wood. Hiltha- lium 2-5 mm. in diameter, the threads 2-10/* in thickness, with very slight thickenings of the membrane. The polygonal vesi- Bean — The Myxomycetes of Wisconsin. 1275 cles give a reticulate appearance to the dark-brown patches which ornament the snirf ace of the wall. ’ ’ In Maebride ’s description are the statements that this is found in the same situations as L. epidendrum and at the same season; that this species is recognizable by its gregarious habit, small size, and dusky color; and that the little spheres are dark lead- colored, shading to black. Neither Massee, Lister nor Saccardo mentions this species. The specimens which I have agree with the above descriptions very closely. The aethalia besides being smaller than those of L. epidendrum, are of a dusky brown or nearly black color from the first. The irregular scales on their surface under the lens show7 the vesicles as having nearly regular polygonal outlines, quite different from those in the peridium of L. epidendrum. The spores are smoother and not tinted with yellow7. The capilli- tilim threads I find to be from 3-9(u wide, and although preserv¬ ing the general appearance of those of L. epidendrum., yet the wrinkles in these are less deep. fewrer, and are irregularly placed. We have but one specimen, which was found growing on decay¬ ing basswood, at Devil’s lake, July 2, 1904. Ophiotheca Wrightii Berk and Curtis. 1868. Ophiotheca Wrightii Berk, and Curtis, Jour. Linn. Soc.y X., p. 349. Maebride : “Plasmocliocarp bent or short-flexuous, often, arcu¬ ate or completely annular, dark chestnut brown or black, open¬ ing irregularly : peridium thin, brittle, translucent, covered with¬ out by a rather dense layer of brownish or blackish brown scales ; capillitium of long, sparingly branched threads furnished with projecting spinules remarkable for their length, about twice the diameter of the thread; spores yellow7, minutely but distinctly warted, about 12 y. Tt is readily distinguished at sight by the peculiar annular, looped, and U-shaped plasmodioearps, with their dark umbrine or blackened surface.” Saccardo gives the diameter of the spores as 10.8 to 12.5/q capillitium threads as 2.5 to 3.3 y thick, and spines on the thread as 1.7 to 3y long. Massee says the sporangia dehisce in a circumscissile manner. He describes the threads of the capillitium as densely and very 1276 Wisconsin Academy of Sciences , Arts and Letters. minutely verrueulose, in addition to the numerous spines, which he finds to be 2 to 4y long. The diameter of the spores he gives as 1 0 to 14 fi. Lister puts the species into the genus Perichaena, and names it P. chrysosperma. His description leaves no doubt that it is the same species described by Macbride as above. He says, however, that the sporangium wall is of two layers, the outer composed of brown granular matter, which either forms a complete crust or is more or less obsolete; the inner layer is subcartiiaginous, yel¬ lowish-olive, translucent. Stalk, when present, stout, black. My one specimen consists of eight sporanges, one of which is a thick ring, another about two-thirds of a ring, one dumb-bell shaped, and two nearly spherical ; the other three are too much broken for their shape to be distinguished. They have a thin, dull, dark membrane on the outside, broken away in places, showing a shining yellow inner membrane ; capil- litium irregular, branched, 3-5^ thick, with scattered, slender, bent, curved, or twisted spines, 3-5 /x long; free ends few, clavate, spineseent ; spores yellow, warted, 9-12^. The long spines on the threads are very distinctive. T found this species on the bark of a knot of a small dead oak twig which had a few hours before been blown from a tree to a walk on the university campus. The sporangia must have formed while the twig was still high above the ground — an un¬ usual position for a myxomycete. Perichaena depressa Libert. 1837. Perichaena depressa Libert, FI., Crypt. Ard., IV., No. 378. Saccardo : “Peridia very much depressed, gregarious, crowded, polygonal, united laterally, red to chestnut-brown, shining, top coming off like a lid ; capillitium well developed, threads of vari¬ ous forms and thicknesses 8 to 33^; spores globose, smooth, 9- IV” Macbride says the capillitium is of slender yellow threads of various widths, almost smooth ; spores minutely warted, 10-12/x in diameter; shallow spore-cases in which lie the yellow spores and scanty capillitium. Lister speaks of this species as having a sporangium-wall of two layers, the outer cartilaginous, charged with brown granular Bean — The Myxomycetes of Wisconsin. 1277 matter, and more or less closely combined with the membranous, smooth inner layer. He calls the spores minutely warted, 8-12/a in diameter. Massee calls the capillitium threads smooth, rarely notched or furnished with rudimentary scattered spinules ; spores minutely warted, 9-12 /a in diameter. In my material the capillitium is not very abundant, varying in width, with irregular projections, branched ; spores minutely warted, 9-12/a in diameter. My one group of sporangia I found on a piece of oak bark in the campus woods in October, 1903. Perachaena corticalis (Batsch) Rost. 1783. Lycoperdon corticale Batsch. Eleuch, Fung., p. 155. 1875. PericJiaena corticalis (Batsch) Rost., Mon., p. 293. Saecardo: “Peridia gregarious, sessile, resting upon a hypo- thallus, spheroidal, depressed, dehiscence circumscissile ; from dirty yellow to obscure red; capillitium scantily developed, threads S-25/a thick; spores smooth, light yellow, 10-12 /a.” Macbride calls the upper part or lid chestnut brown, the lower almost black ; capillitium smooth, attached to the lid and usually coming away with it . On and under the bark of dead elms of various species . Prior to maturity the future line of fission is plainly indicated by the difference in color. In another place he says the capillitium is nearly smooth; spores only slightly roughened by minute warts. Lister says the sporangia sometimes form short, broad plas- modiocarps ; that they are crowded, sessile on a broad or narrow base, rarely substipitate. He calls the color dark purple or purplish-brown, nut-brown, gray, or white. “Dehiscing along definite lines, either horizontally with a convex lid, or in broad sinuous lobes.’ ’ He calls the capillitium threads irregularly compressed, angled and constricted, minutely warted, rarely smooth. Size of the spores, 12-14/* in diameter. Massee describes the color as brown, bluish-purple, sometimes whitish ; capillitium sometimes almost obsolete, threads thin, smooth, or here and there notched ; spores warted, warts variable in size, sometimes very indistinct, at others well developed, never smooth. 9-12/a in diameter. The spores vary in marking from vague granulations to well-defined warts. 1278 Wisconsin Academy of Sciences , Arts and Letters. My material shows sporangia that are gregarious, sessile or substipitate, globose, ellipsoidal, sometimes umbilicate below, or forming short plasmodiocarps, but none are flattened ; dehiscence eircumscissile by a convex lid with sinuous lobes, as Listen states ; the color medium or dark brown, sometimes with a purplish tinge; sometimes but not always showing in lighter color the line of dehiscence ; there are no such differences of color between the cap and cup in my specimens as Macbride mentions; thin, shining, extended hypothallus. Macbride states that the capil- litium is smooth, then he says nearly smooth, yet in his figures the capillitium is represented as angled, notched, and with pro¬ jections. I find the capillitium scanty or almost wsanting, branched, unequal, yet none as wide as Saccardo gives, never smooth, but angled, constricted, with projections, but no minute warts; capillitium and spore-mass yellow; spores minutely wanted, 10-12y. I obtained this species in large quantities, October 19, 1903, from all parts of the bark of a poplar log in the Elmside woods. I found none on the wood itself. April 29, 1904, the log had been removed, but a few rods away was a piece of poplar bark bearing several groups of the species, of the last year’s fruit. With these was a group nearly white, wrinkled and shriveled: these put into a wmrrn moist-chamber became plump and came to maturity. I think that they had started to grow one unusually ■warm April day and that the succeeding cold had arrested their development. Some pieces of the bark brought into the herbarium room in October and in April, put under a bell-jar on a tin plate and kept moist, fruited plentifully, giving me material for the study of their life-history. The plasmodium appears on the surface only as tiny milky wdiite drops which are the beginnings of the sporan¬ gia. The time from the first appearance of the plasmodium to that of the fully ripe spores does not ordinarily exceed thirty- six hours. Somewhat later in the spring of 1904, several logs which had been brought into the Science Hall greenhouse bore large crops of several kinds of myxomycetes, among them a large quantity of Perichaena corticalis, which I used for further study of its life- history. These logs came from the university campus near the buildings, but I have never found this species growing in those woods. Bean — The Myxomycetes of Wisconsin. 1279 Laclmobolus Occident alls Macbr. 1885. Laclmobolus incarnatus (Alb. and Schw.) Macbr., Bull Lab. Nat. Hist. Iowa , II., p. 126. Macbride: “Sporangia scattered or crowded upon a hypothal- lus more or less distinct, globose or ellipsoidal, short-stipitate, varying somewhat in color, at first rosy or flesh-colored, later brownish or ocliraceous ; the peridium exceedingly thin, pellucid, mealy, evanescent above, persisting as a shallow cup below, capil- litium inelastic, rather closely netted of threads variable in thick¬ ness, marked by frequent thickenings or expansions, everywhere warted, attached to the peridial wall ; spores in mass flesh-colored, under the lens colorless, smooth, globose, 7.5-9/a. When newly formed the sporangia have a peculiar rosy or flesh-colored metal¬ lic tint, which is all their own. Within a short time this color passes, and most of the material comes from the field brownish or ochraceous in color. Typical sporangia are spherical on dis¬ tinct short stipes. The capillitium never expands as in Ar- cyria.” Saccardo makes the diameter of some of the capillitium nodes 10/a, the thread 3-5/a thick, and the spores 6.5-7. 5 u in diameter. My specimens have about the same habit of growth and the same size of sporangia as Trichia persimilis, T. scabra, and 1. favoginea. From the color when old this species might be mis¬ taken for T. persimilis. The sporangia are sometimes pear-shaped with the smaller end uppermost. There is a thin, papery hypo- thallus. The most distinctive feature in the general appearance of this species is the non-elastic capillitium-mass, and its gradual disappearance as the peridium wears away, leaving the tops of the sporangia with their capillitium and spore-mass always clean-cut and level. The capillitium-thread is very unequal in width, with frequent enlarged nodes, and with small and large loops and rings formed in the thread. The spores are smooth, colorless, 6-9/a in diameter. One specimen was found at Lake Mills, November 1901, an¬ other in the cemetery woods, October 29, 1903, both growing on dead poplar wood; another on dead wood in the cemetery woods, October 21, 1903 ; one at Eagle Heights October 2, 1912, also on wood : another on dead wood at Eagle Heights, October 21, 1904. 1280 Wisconsin Academy of Sciences , Arts and Letters. Arcyria nutans (Bull.) Grev. 1791. Trichia nutans Bulliard, Champ., p. 122, t. 502, III. 1824. Arcyria nutans Grev., FI. Edin., p. 455. Saccardo: “Peridia clustered, evanescent, short-stiped, cylin¬ drical; spores and capillitium dull whitish-yellow; capillitium expanded, long, curved, at length decumbent; threads attached to the tube of the stipe, 3-4/x thick, bearing stout spines irregu¬ larly; spores smooth, 7-8y.” Macbride calls the sporangia pale yellow or buff, and speaks of forms that are sessile by an acute base. The base alone of the peridium persists, and that is a shallow, colorless, often inwardly spinulose, plicatulate calyculus. ITe says the hypothallus is thin, but usually in evidence. The capillitium, besides the spines, has sharp-edged transverse plates, sometimes rings, the surface es¬ pecially marked by an indistinct reticulation, all of which char¬ acteristics I have noticed in my specimens. He says, also, that the capillitium is very lightly attached, and that the spores are colorless. Lister names about the same characteristics as given above, but adds ; “ Stalk short, or elongated and weak, filled with spore¬ like cells, buff; free ends more or less numerous, with clavate tips.” Maseee’s description agrees with the foregoing. I find these descriptions accurate for my specimens. The long, soft, plumose, ochraceous capillitium mass makes this species easy to distinguish. Our two specimens were obtained, one near Wausau in the summer of 1894, growing on bark, the other on poplar wood near Pond du Lac, July 30, 1897. Arcyria incamata Persoon. 1791. Arcyria incamata Pers., Gmel ., Sys. Nat., II., p. 1467. Macbride: “ Sporangia closely crowded, cylindric, 1-15 mm. high, rosy or flesh-colored, stipitate or almost sessile, stipe gen¬ erally short, sometimes barely a conical point beneath the calycu¬ lus; hypothallus none; peridium wholly evanescent except the Bean — The Myxomycetes of Wisconsin. 1281 shallow, saucer-like, inwardly roughened calyculus; capillitium loose, broad, pale reddish, attached to the cup at the center only, by strands which enter the hollow stem, the threads adorned with transverse plates, cogs, ridges, etc., arranged in an open spiral; spore-mass rosy, spores by transmitted light colorless, nearly smooth, 7-8u, This common species is well marked, both by its color and by the delicate attachment of the capillitium to the caly¬ culus. This is so frail that the slightest breath oftimes suffices* to effect a separation, and the empty calyculi are not infrequently the only evidence of the fructification.” Lister says that the cup of the sporangium wall is membranous, even or interrupedly plicate, and spinulose. He finds in the capillitium here and there broad perforated or ring-like expan¬ sions. and the thread often swollen at the axils of the branches. He finds free ends present and more or less numerous, clavate or pointed, spinose. He also speaks of the capillitium as being without attachment to the cup, and says that it is more diffusely expanded than that of Trichia punicea. Massee, as well as the other authors quoted, describes the capil¬ litium as “ having very few attachments to the basal portion of the thin sporangial wall.” This species T distinguish from A. denudata by the slight at¬ tachment of the capillitium to the calyculus, the greater expan¬ sion of the capillitium mass, and by the much shorter stipe. I find few free ends, one specimen showing none at all; large and small rings are numerous and there are some swellings along the thread. Another specimen shows several free ends. In general, Macbride’s description is accurate for my specimens. We have specimens from Brule River, July 19, 1897, growing on moss, and on Norway pine bark: from Lake Mills on poplar wood, gathered November 1901 ; from the cemetery woods and other parts of Madison, October 1903, and on a poplar log in the Science Hall greenhouse, October 1903. 1282 Wisconsin Academy of Sciences, Arts and Letters. Arcyria denudata (L) Sheld. 1753. Clathrus denudatus Linn., Syst. Nat., p. 1179. 1895. Arcyria denudata (Linn.) Sheld., Minn. Bot. Studies, No. 9, p. 470. Macbride : ‘ ‘ Sporangia crowded or gregarious, ovoid or short cylindrical, tapering upward, red-brown, stipitate; peridium evanescent except the plicate calyculus ; stipe about equal to the expanded capillitium, concolorous, plicate or striate, ascending from a small hypothallus; capillitium attached to the whole inner surface of the calyculus, and connate with it, hence not decidu¬ ous, bright red or carmine when fresh, turning brown or paleir with age, the threads even, about 3y, adorned with a series of rather distant cogs or half rings, which form around the thread a lengthened spiral; spore-mass red or reddish-brown, spores by transmitted light colorless, nearly smooth, 6-S/x. This species is easily distinguished from all others of similar tints by the attach¬ ment of the capillitium. In adornment of the threads it is like A. incarnata.” Saccardo says that the color of all parts of this species varies from saffron to purplish, and to brick-red. Lister calls the color of the sporangia crimson. He says the stalk is filled with spcre-like cells. He describes the capillitium as an elastic network of flattened or terete red threads, with many attachments to the cup, and usually without free ends. Massee calls the color Vermillion, sometimes with a brownish or purplish tinge, rarely yellowish-brown. He also speaks of the attachment of the capillitium to the sporangial wall. My specimens do not vary from the above quoted descriptions. The chief difference between this species and A. incarnata are the longer, more twisted, and plicate stipe, and the less expanded capillitium with its permanent attachment to the calyculus. The capillitium of my specimen from the cemetery woods is 5-6^. thick, while that of other specimens is about 3,u. One of my three specimens was found near Doherty lake in summer of 1893, growing on green moss and much-decayed wood ; one very small specimen growing on wood I found in the ceme¬ tery woods. October 27, 1903. For the third I have not the exact locality or date. It is on the end of a knot of poplar, with many sp oranges of a Dictydium commingled with it. Bean — The Myxomycetes of Wisconsin . 1283 Arcyria cinerea (Bull.) Pers. 1791. Trichia cinerea Bull., Champ, d& France, p. 120, Tab. 477. 1801. Arcyria cinerea (Bull.) Pers. Syn. Fung., p. 184. Macbride : ‘ 4 Sporangia scattered or gregarious, ovoid or cylin¬ drical, generally tapering upward, about 2-3 mm. high, ashen gray, sometimes with a yellowish tinge, stipitate; calyculus very small, thin ; stipe about half the total height, rising from a small hypothallus, thin, gray or blackish, densely crowded with spore-like cells ; capillitium dense, freely branching, ashen or yel¬ lowish, little expanded in dehiscence, the threads almost even, though a little wider below, minutely spinulose ; spore-mass con- eolorous, spores by transmitted light colorless, smooth, 6-7 ju. A very common little species easily recognized by its color and habit. The capillitium is more dense than in any other species and expands less. The stipe is about equal to the expanded cap¬ illitium, unusually long.” Lister’s description agrees with Macbride ’s. Massee says that the sporangia are simple or digitato-fascicu- late on a common stem ; that the capillitium is dense, protruding elastically, and remaining erect. The rest of his description agrees with Macbride ’s. My specimen agrees with Macbride ’s description excepting as to spores, which I find to be from 7 to 9/x in diameter. The sporanges are tiny bodies, under a hand lens showing beautiful dense pear-shaped masses of soft gray capillitium with a yellow¬ ish tinge, which keep their shape and ereetness under many ad¬ verse conditions. The one small group of this species which I have was found at Blue Mounds, August 8, 1903. The sporangia were growing on wood so much weather-wopm that it fell into fragments. Arcyria magna Rex, 1893. Arcyria magna Rex, Proc. Phil. Acad., p. 364. Macbride (in part) : “Sporangia tawny gray or ashen, cylin- dric, when expanded reaching a length of half a centimeter or more, stipitate; petridium evanescent except the small, shallow, cup-like base ; stipe long, weak, pale brown or reddish ; capilli- 1284 Wisconsin Academy of Sciences , Arts and Letters. tium gray or drab-colored, tbe threads regular, cylindric, coarsely sculptured with rings, half-rings, cogs, spines, etc. ; spores in mass dull gray, drab, under the lens colorless, papillate, with few papillae, 7— 8/x. ’ ’ Lister does not recognize this as a separate species, but calls it a form of A. Oerstedtii , which is pale red in all its parts. He says this form has smoother calyculi and stouter markings on the threads. Massee has no description which agrees with that quoted above, and the name is not included in his list of synonyms. My specimens agree with Macbride’s description, except that the stipe is variable in length, and the hypothallus is quite evi¬ dent, thin and glassy. I find the spores as described, and ,7-8/* in diameter. This is a beautiful species, very different in color from A. nut¬ ans. and from A. cinerea , which it most nearly resembles in gen¬ eral appearance. We have one collection which was found growing on a maple tree be«ide a street in Madison, July 3, 1905. Hemitrichia serpula (Scop.) Rost. 1722. Mucor serpula Scop., FI. Cam., IT., p. 493. 1873. Hemitrichia serpula (Scop.) Rost., Yersuch, p. 14. Saceardo: “Peridia spreading, vein-like, with many abruptly reticulated branchings; capillitium 4/*, branches numerous, free ends, the ends equal to the diameter of the capillitium, or some¬ what longer; spiral bands 3-4, smooth, armed with numerous long spines, spaces between 3 or 4 times the width of the bands; spores yellow 9-11/*. ” Macbride says in part: “Fructification plasmodiocarpus, often covering several square centimeters in extent, terete, :rusty, taw¬ ny or bright yellow; the peridium thin, transparent, with ir¬ regular dehiscence ; hypothallus none ; capillitium variable, spar¬ ingly branched, free everywhere, the free tips spinose, acumi¬ nate. ...... .traces of longitudinal striae ; spore-mass golden yel¬ low, spores globose, delicately reticulate, about 10/* in diameter.” Lister says the sporangium- wall is of two layers; capillitium threads are 5 to thick; spores 10 to 12/* in diameter, their bor¬ der being from 0.5 to lu wide. Bean — The Myxomycetes of Wisconsin. 1285 Massee make? this species Arcyria serpula. His description does not differ materially from the others. He speaks of a form collected in Cnha which was subglobose, scattered, and seated on a broad base. The specimens which I have show the same structure and habits of growth as already described. I find the sparingly^ branched capillitium threads 5-6/a thick, some free ends which are acuminate, spinose; spores reticulate with narrow bands, 9- 12 fi. We have two specimens, both from Blue Mounds, growing on much-decayed wood and bark, collected August 18, 1902, and April 29, 1904, respectively, the latter evidently the fruit of the previous year. Hemitrichia vesparium (Batsch) Macbr. 1786. Ly coper don vesparium Batsch, Eleuch. Fung., pp. 255-6, hg. 172. 1899. Hemitrichia vesparium (Batsch) Macbr., N.-A. S.-M. p. 203. Saccardo : ‘ 4 Sporangia fascicled, with short connate stipes, cyl¬ indrical-turbinate, with a metallic lustre, dark red; spores and capillitium cinnamon- or ruby-red ; capillitium threads 4-5/a thick, rarely branched, free ends acute, smooth, or inflated and ending with a short spine, rarely obtuse ; spiral bands 2-4, armed with numerous spinules, the spaces between twice the width of the bands; spores smooth, 10-lly in diameter/ ’ Macbride’s description in part: ‘‘Sporangia rarely single, clavate or subcylindric, stipitate or sessile, dark wine-red or red- black; stipes solid, concolorous; capillitium marked by three or four spiral ridges ; spores by transmitted light reddish orange, very distinctly warted, subglobose, 10-12/x. A most common species on rotten wood, everywhere, especially in forests. Recog¬ nized generally at sight by its color and fasciculate habit. The peridium often shows a tendency to circumscissile dehiscence, and persists long after the contents have been dissipated, in this condition suggesting the specific name applied by Batsch, vespar¬ ium, wasp-nest. Rostafinski describes the spores as smooth; they seem to be uniformly distinctly warted. The plasmodium 1286 Wisconsin Academy of Sciences, Arts and Letters. is deep red and a plasmodicarpous fructification occasionally ap¬ pears. ’ ’ Massee speaks of the capillitium mass as elongating at maturity and carrying the apical portion of the sporangium at its apex, where it remains in the form of a cap. I think this characteristic is not universal in this species. He says the capillitium tips are usually marked by from one to three short, smooth spines. This, too. I find not common. He says the spores vary from almost perfectly smooth to minutely but distinctly warted. Lister gives the length of the capillitium spines as 2-5/x. He says the capillitium is rarely nearly smooth, and that sporangia are occasionally found with a few free elaters pointed at each end, in addition to the continuous network of threads of the usual type. I find no essential points in which my specimens differ from the above descriptions. I have failed to find plasmodiocarpous forms. The spores are distinctly warted, from 9-12/x in dia¬ meter. This species is very common here. It was found in great abun¬ dance late in October 1 903, in the cemetery woods, in Vilas woods, and in the university campus woods. We have specimens also from Blue Mounds, collected October 4, 1902. A few collected at Blue Mounds April 14, 1904, were evidently the fruit of the previous year. Others are from Blue Mounds, July 1, 1908, and from Sturgeon Bay, on dead wood, August 19,1905. Hemitrichia stipata (Schwt.) Macbr. 1834. Leangium stipatum Schw., N. A. F., p. 258, No. 2304. 1899. Hemitrichia stipata Schw. Macbr. N. — A. S. — M., p. 204. Of the four authorities whom I have before quoted, only Mac- bride and Lister mention this species. Macbride: “Sporangia distinct, crowded, cylindric or irregu¬ lar, overlying one another, rich copper-colored, metallic, shining, becoming browm, stipitate ; the peridium thin, the upper portion early evanescent, the base persistent as a cup, as in Arcyria ; cap¬ illitium concolorous, the thread abundantly branched to form a loose net, with many free and bulbous ends, pale under the lens, marked by three or four somewhat obscure spiral bands, and a few wart-like or plate-like thickenings ; stipe very short ; spore- Bean — The Myxomycetes of Wisconsin. 1287 mass reddish, spores by transmitted light pale, nearly or quite smooth, 6-8/*. This species is known at sight by its peculiar beautiful tint when fresh, as by the crowded prolix habit of the singular overlying sporangia . It is a boundary form un¬ questionably. ’ ’ From Lister I add the following : ‘ ‘ Copper-colored or deep brown with a carmine tinge ; membranous hypothallus; capilli- tium marked with a border of broad-based spines, or blunt cogs, sometimes covered with minute spines in addition; with many free clavate ends.” For the three groups of sporangia which I have, Macbride’s description of manner of growth and general characteristics is accurate. The capillitium illustrated on his “Plate I,” is, how¬ ever, entirely different from that which I find. In Lister’s My- cetozoa, Plate LXX, A, figs. /. and b. are like what I find. The capillitium has a border of broad-based spines, turning from one side to the other of the thread. The free ends are very few, but they all terminate in large globular swellings from 13 to 18/* in diameter. These same globose enlargements are occasionally found along the course of the thread, which is 3-4/* thick; there are no loops or rings in the thread. I find no difference in threads taken from different parts of the capillitium mass. My three specimens were collected in the cemetery and Vilas woods in October 1903. They are on both wood and bark of de¬ cayed poplar. Hemitrichia clavata (Pers.) Rost. 1794. Trichia clavata Pers., Bom. N. Bot. Mag., I., p. 90 1873. Hemitrichia clavata Pers., Bost.. Vcrsuch, p. 14. Saccardo: “Sporangia simple gregarious, stipitate, more or less clavate, yellow, shining; stipe rather long, attenuate below, wrinkled ; concolorous or with the base reddish ; spores and capil¬ litium yellow or olive, or dusky yellow; capillitium 4/* thick, sparingly branched, with free ends obtuse or frequently sightly enlarged; spiral bands 5, slender, spaces between two or three times the width of the bands ; spores warted 8-9/i in diameter. ’ ’ Macbride describes the sporangia as clavate or turbinate, color yellow, olivaceous, or brownish ; peridium generally thin, evanes¬ cent above, breaking away so as to leave a more or less definite 1288 Wisconsin Academy of Sciences , Arts and Letters. cup beneath ; stipe about one-half the total height, (reddish, red¬ dish-brown, or blackish, hollow about one-half way down ; spirals on the capillitium four or five, regular, even, and projecting sharply; capillitium variable in the number of free ends, degree of smoothness, and amount of branching. Spores pale yellow, minutely but distinctly warted, 8-9/* in diameter. Lister describes the plasmodium as watery white in dead wood; “ total height 1 to 3 mm.; sporangia rarely globose; sporangium wall minutely papillose on the inner side; capillitium 5-6/* in diameter, with 5-6 spiral bands 1/* wide with intervals of 1 to 1.5 jjl, sometimes spinose in parts in imperfect developments; spores 8-10/a in diameter. ’ ’ Massee names this species an Arcyria. He describes the stem as filled with large, gobose or sub-angular cells which pass up¬ ward into normal spores; he calls the capillitium 4-5/a thick; spores reticulated, 8-10/*, but, he says, that ridges are sometimes short and distinct or even wart-like. The many specimens which we have vary from light yellow, shining, to brownish, dull; some forms are nearly sessile, while in others the stipe is more than half the total height. The long- stiped forms are clavate or turbinate, the short-stiped ones more nearly globose. The capillitium is centrally attached to the cup, and when set free by the evanescence of the upper part of the peridium it usually hangs from the cup in a long ragged mass. In such cases the cup in quite deep and the edge irregular. But I have several forms gathered at different times* and places, which have short stipes and in which the peridium breaks away at the top, the lower part becomes distinctly reflexed and leaves a small shallow cup upon which the capillitium-mass remains quite permanently as a little globose mass. The capillitium and spores of these specimens show no variations from the otheir specimens. The capillitium is 6-7/a wide, with four or five spirals, smooth, even; the spores are minutely warted. In April and May, 1904, many of this species appeared in the Science Hall greenhouse, upon decaying logs, mostly oak and poplar, which had been brought in the fall previous. These forms have unusually long stipes and the sporangia are rather smaller than the average. The plasmodium is within the wood and is watery white ; it begins to pile up in milky-white drops as soon as it comes to the surface. Then it elongates upward, Bean — The Myxomycetes of Wisconsin. 1289 the top at once becoming larger than the bottom. Its typical form is shown early. The sporange does not reach its normal size until some time ofter the stipe has grown to its full length. It is still milky- white. In about thirty-six hours after its first appearance, the stipe begins to turn reddish inside, the outside being translucent. In about forty-eight hours the whole body is dark red-brown; then it turns light yellow, the top turning first ; the top then breaks away in fragments. The process is hastened by an inorease of temperature. These specimens in the greenhouse show the re flexed peridium and globose sporangium such as I have described above. Lister pictures such a fruit in Plate LXXIY of his Mycetozoa, and says it is a United States specimen. Our specimens are from Dead lake, cemetery woods, Yilas woods, and university woods, Madison; from opposite Fond du Lac gathered July 1897, and from. Blue Mounds. The most were gathered late in the fall, one lot in May. A few are on bark, but the most are on decayed poplar wood. Trichia varia (Pers.) Rost. 1791. Stemonifis varia (Pers.) Gmel., Syst. Nat., II., p. 1470. 1875. Trichia varia (Pers.) Rost., Mon., p. 251. Saccardo : ‘ ‘ Peridia sessile, globose, but the mass having an irregular surface, there often being some reniform sporanges in¬ termixed ; yellow, approaching brownish- or reddish-yellow, scat¬ tered or crowded; elaters cylindric, with a thin membrane, to¬ ward the ends regular or slightly enlarged, slightly curved, the ends 2-3 times as long as the diameter of the elater ; spiral bands 2, spaces between, 3 or 4 times as wide as the band; spores warted, dull yellow, 10-14/*. ’ ’ Macbride says of the sporangia that they are shining, sessile, or with short black stipe ; hypothallus none. He says that the capil- litium is of rather long, simple, or more rarely branched elaters, 4—5//. wide. He finds two spiral bands, prominent and narrow and in places remote, the apices acute. The spore-mass he calls yellow, the spores . 12-14//, in diameter, delicately verruculose, guttulate. He calls this a common species, variable in form. “The two spiral bands are loose and irregular, unlike anything 1290 Wisconsin Academy of Sciences , Arts and Letters. else in the group except the same structure in T. contorta , but here the elater is narrow and the sculpture obscure/ ’ Lister speaks of the sporangia as sometimes forming short plasmodicarps, and speaks of the wall as membranous, pale yel¬ low, marked with ring-shaped or crescentic thickenings. He gives the diameter of the spores as 11-1 6/x. Massee describes the spores as turbinate or subglobose, the elaters as rarely branched, and sometimes swollen at the com¬ mencement of the tapering tips. The abundant material which I have varies from crowded to scattered, from short-stipitate to sessile forms, from dark orange to shining bronze-brown, from globose to plasmodiocarpous forms, and varies considerably in size even in the same group. One of my groups has a distinct hypothallus. The elaters are generally simple, sometimes branched, 3-5 y thick, the spirals smooth, 2 or 3 projecting boldly, continuing to near the end of the tip. With but one or two exceptions, all the elaters I have seen have been swollen just at the beginning of the apex, gener¬ ally on one side, giving the end a bent or unsymmetrical appear¬ ance at once noticeable and determinative. The tip is curved, often twisted like a corkscrew. The spores I find to be globose, delicately warted, 12-16/x. Many specimens I found in the cemetery woods late in October 1903. Some were found in Vilas woods and in the campus woods in 1903, and in two other localities in Madison in 1899. They were mostly on dead poplar wood and bark. Trichia scabra. Rost. 1875. Trichia scabra Rost., Mon., p. 258. Saccardo: “Typical sporangia gregarious, sessile on a com¬ mon membranous hypothallus ; elaters cylindrical, apices acute, straight, or slightly curved ; spiral bands 3 to 4, bearing numer¬ ous short acute spines; spaces between, wide, smooth* spores 8- 11/m: epispore thick, with numerous obtuse warts/ ’ Macbride: “Sporangia closely crowded, regular, globose or turbinate-globose, orange or golden-brown, smooth, shining; capillitial-mass clear golden yellow, or sometimes rusty orange, the elaters simple, long, 4-5/x in width, spirals closely wound, even and regular; spore-mass eoncolorous, under the lens spores Dean — The Myxomycetes of Wisconsin. 1291 yellow, covered by a delicate fine-meshed network, or simply spinulose under low power, 10-12//,. Fructifications two or more inches in length and half as wide are not infrequent on the lower side of fallen stems in forests of deciduous trees.’ ’ Lister’s description varies but little from the above. He says the elaters are 4—6/* thick, with four or five bands arranged in somewhat irregular spirals, with spines, or nearly smooth, the ends acutely conical or with the bands produced at the apex in more or less diverging points, longitudinal striae rarely evi¬ dent. He finds the spores minutely reticulated .... or irregu¬ larly warted, the spore border being reduced to a spinulose mar¬ gin 9-12// wide. Massee says the color varies from pale yellow through dirty orange to brown. He finds the elaters to be 6-8//, thick, and that the spores have a fine network of raised lines. My specimens might easily be mistaken from their general ap¬ pearance for some of those of T. persimilis. The color of the most of the T. scabra however, approaches nearer to orange than does that of T . persimilis. The manner of growth, closely crowded in circular patches, is similar to that of T. persimilis , T. favoginea , and even of some of our specimens of T. varia. Under the lens the distinction between this species and the others named is quite marked. The elaters are generally long, but in one group I find many that are quite short. They are 4-6/* wide, the apices short, acuminate, or with one or two spines divergent. The spiral bands are 3-4, spinulose, closely, sometimes irregu¬ larly wound. The spores are globose, regular, with fine reticula¬ tions, 10-12/* in diameter. In one of my specimens the capillit- ium hangs in a woolly mass above the empty calyculi, as de¬ scribed by Macbride for T. favoginea. We have specimens gathered at five different times in October 1903, three from the cemetery woods, and two from Blue Mounds. One specimen from Blue Mounds, collected in April 1904, was evidently the fruit of the year before. All were growing on dead bark. 1292 Wisconsin Academy of Sciences , Arts and Letters. Tricilia persimilis Karst. 1868. Trichia 'persimilis Karst., Not Sacllsk Fenn. Fork., IX., p. 353. Saccardo: ‘‘Sporangia aggregated, nearly or quite spherical, brownish, with a bronze-lustre, sessile; elaters cylindrie, yellow, 4-6y, apices smooth, generally curved, twice as long as the di¬ ameter of the elater ; spiral bands 3-4, prominent, spaces between twice the width of the bands ; bands armed with scanty, promin¬ ent, curved, hyaline spines, 8-10y long, 4-6/x thick ; spores wait¬ ed, yellowish, globose, 12-14^.” Macbride says, in part: “The sporangia are golden yellow to tawny, anon iridescent with metallic lustre; hypothallus thin, but usually very distinct; capillitial mass ochraceous or tawny yellow, the elaters long, even, about 4/x wide, the spirals four, more or less spinulose, generally joined by longitudinal ridges, the apices short, tapering regularly, anon bifurcate; spore-mass concolorous, spores marked by an irregular or fragmentary banded reticulation, the bands broad, flat, and pitted, 10-12^. Plasmodium said to be white . It never shows at maturity the brilliant golden yellow fluff that hangs in masses about the open and empty peridia of T. favoginea .” Lister calls the elaters 4-6/x thick, with the bands sometimes produced at the apex into two or three diverging points, longi¬ tudinal striae inconspicuous. He finds the spores to be 11 to 14ft in diameter, with the reticulation broken, or represented by reg¬ ular pitted warts, border interrupted. He says also : ‘ ‘ The oc¬ currence of the long spinous processes on the elaters, noted in the original description of T. persimilis , is not a constant char- atcer. ’ ’ Massee adopts the name T. affinis De Bary. His description is scanty and does not differ from those quoted above excepting that he says that this species is distinguished by the presence of pits on the raised bands of the epispore, and by the absence of raised ridges running parallel to the long axis of the elater. I found considerable difficulty at first in distinguishing this species from T. favoginea, from the descriptions as given above The color is not markedly different from that of T. favoginea nor from that of T . scabra; the manner of growth is the same ; the Bean — The Myxomycetes of Wisconsin. 1293 color varies from dark golden to light yellowish brown, generally iridescent, shining; sporanges opening by jagged cracks on top; the statement that “it never shows at maturity the brilliant golden yellow fluff that hangs in masses about the open and empty peridia of T. favoginea/’ is somewhat misleading, for in a large percentage of the specimens the most noticeable feature is the woolly fluff, and the empty peridia under and around the margins of it. After a short exposure to air, light, and dust, the difference in the shade of yellow of the two species is scarcely distinguishable. Then again the description of the spores of T. favoginea by Macbride as being “in form irregularly glo¬ bose, 7 ’ the irregularity in the form of the spores of T. persimilis not being mentioned caused difficulty. Under a low-power lens, the spores of T, persimilis show such irregularity that one might easily think them to be dried, or shrunken, or otherwise distorted. The oil-immersion lens shows the bands which cause the irregu¬ larity to be fragmentary, unequal in width and pitted, giving a much interrupted margin to the spores, which I find to be 10-12^ in diameter. The capillitium is 4r-5y wide, never as wide as 6^, except in specimens gathered in Port Wing July 12, in which the capillitium is 7-8 /x thick; none of the spores of this specimen were as small as lOy ; the longitudinal striae were also evident in this specimen. In the other specimens which I have, the striae are quite inconspicuous; I found spines on all the capillitium, though more abundant on some than on others ; the ends of the elaters often have 2 to 3 spines, the end sometimes enlarged. This species seems quite abundant in this locality. We have specimens from the cemetery and Vilas woods, from Elmsidel, from Blue Mounds, and from Port Wing. One group an inch long and three-quarters inch wide, is growing on weather-worn bits of wood almost as fine as sawdust, these lying upon a piece of dead leaf. Other specimens are on decayed wood, mostly poplar, or on the inside or outside of bark. All our specimens excepting the one from Port Wing were collected in October. 1294 Wisconsin Academy of Sciences , Arts and Letters. Trichia favoginea (Batsch) Pers. 1786. Ly coper don favogineum Batsch, Eleuch, Fung., p. 257, Pig. 173, a, b. 1794. Trichia favoginea (Batsch) Pers., Rom. N. Mag. Bot., I.t p. 90. Macbride: “Sporangia closely crowded, cylindric or pris¬ matic by mutual pressure, obovoid, sessile, olivaceous yellow, smooth and shining ; the peridium thin, opening above somewhat stellately, persistent; capillitium golden yellow, escaping en¬ tirely from the peridia, and forming large woolly masses above them, the threads long, even, beautifully sculptured, bearing spirals about four, usually smooth and connected by light longi¬ tudinal ridges, the apices short tapering, about equal to the width of the elater, 6-7/a; spores concolorous, by transmitted light paler, but still bright yellow, the epispore net conspicuous, the bands narrow and high, not pitted nor fragmentary, in form irregularly globose, 12-14/a. Plasmodium yellow. A common and beautiful species recognizable at sight, after the peridia break, by the aggregate capillitium constantly in evidence above the abandoned vasiform peridia.’ ’ Lister calls the capillitium and spore-mass orange yellow and the sporangium-wall membranous, minutely thickened with ir- regulair striae. He says a stalk is rarely present. He finds the elaters to be 7-8/a thick, smooth or with scattered spines, and the points of the elaters 3-8/a long. The spore diameter he gives as 13-15/a, including the border which is 1.6 to 2/a wide. He further says: “Between T. affinis and T. persimilis, and be¬ tween T. persimilis and T. scabra , intermediate forms frequently occur where it is ‘often difficult to decide under which head to place them.” Massee adopts the name T. chrysosperma Rost. He calls the color yellow or ochraceous cinnamon. He finds sometimes a few scattered spinules on the elaters. He terms this “a rare species characterized by the deep narrow ridges forming a network on the epispore and the surface of the bands not being punctate, and by the narrow raised lines running parallel to the long axis of the elaters.” Saccardo gives the spore diameter as 10/x, or including projec¬ tions, 12-15/a. Bean — The Myxomycetes of Wisconsin. 1295 The specimens which we have show the same small, densely crowded sessile sporangia as T. persimilis and T. scabra. The color is yellow, rather lighter and somewhat nearer orange than the majority of the specimens of T. persimilis. The capillitium escapes from the peridia, forming a woolly mass above. So far the description is not distinctive. But I find the capillitium smooth, or with a few scattered, very minute spinules, 6-8/a thick, with the ends 6/x long. There are four spirals closely wound. The spores are more regular in outline than those of T. persimilis. the border is 1-2 y wide, not interrupted. The bands are reticulated, more even and narrower than in T. per¬ similis. and are neither pitted nor fragmentary; and the spores are larger, being 12-1 5/a in diameter. The smoother capillitium, the larger, regular spores with their even bands not fragmentary, render this species not difficult to distinguish from those of similar general appearance, when they have once been studied. We have specimens collected in Wisconsin in 1897, locality not given, and one from Star Lake, August 4, 1901 ; growing on dead poplar wood and bark. Trichia decipiens (Pers.) Macbr. 1795. Arc-yria decipiens Pers., Ust. Ann. Bot., XV., p. 35. 1796. Trichia fallax Pers., Ohs. Myc., I., p. 59, etc. 1899. Trichia decipiens (Pers.) Macbr., N.-A, S.-M., p. 218. Saccardo: “Sporangia clustered, stipitate, crowded, turbin¬ ate, from dull yellow to olive yellow ; stipe plicate, the tube con¬ tinuous with the sporangial cavity; elaters spindle-shaped, simple or branched, 4-5/x in the widest part, tapering equally toward each end, the ends from four to six times as long as the diameter of the smooth thread ; spiral bands 3, smooth, prominent ; spores warted, 10-12/t.” Macbride’s description differs but little from that given above. He calls the color shining olive or olivaceous brown. He say3 of the stipe that it is generally elongate, concolorous above, dark brown below, hollow, i. e. filled with spore-like cells. He speaks of the elaters as having long, smooth, unwound tips. The spores under the lens he finds to be pale, minutely delicately re¬ ticulate, 10—1.2/a in diameter. 1296 Wisconsin Academy of Sciences , Arts and Letters. Lister states that the plasmodium is rose-colored or white, the sporangium wall membranous and of two layers. He finds the spores minutely warted or more or less distinctly reticulated on one side and 9-12/* in diameter. Massee finds some of the sporangia to be subsessile. He de¬ scribes the spores as covered with a very fine irregular network. The specimens which I have vary in color from a medium yel¬ low which closely resembles the color of some of the Hemitrichia clavata , to dark olive brown. The size also varies. These- vari¬ ations are quite marked sometimes in material gathered at the same date and place. Some of the elaters carry their spiral bands nearly or quite to the tip. The spores I find to be finely and equally reticulated, and 10-12/* in diameter. Several groups of sporangia on a piece of poplar bark found at Blue Mounds, April 29, 1904, are distinctly sessile, the spo¬ rangia being attached to the substratum by their attenuated bases. Prom their general appearance they might easily be mis¬ taken for T . varia or T. pcrsimilis, but under the microscope the elaters and spores show the characteristics of T. decipiens per¬ fectly. These specimens are evidently of the last year’s growth, and the variations may have come about by its fruiting very late in the fall under unfavorable conditions. Another set of dried specimens from East Madison, August 5, 1903, vary from light red, semi-transparent, to dull black, opaque : from subsessile to stipitate. Many are wrinkled, rough¬ ened, very hard and brittle. A very few of the sporangia are soft and light colored at the top. In this softer portion I found the characteristic capillitium and spores of T. decipiecns. It was impossible to crush most of these sporangia in such a manner* as to learn the character of the contents. These are evidently immature fruiting bodies which have been arrested in their development. Occasionally similar brittle black sporangia are found mingled with ripe, perfect sporangia of T. decipiens. Such imperfect forms as these may have been sometimes named as new species. Lister mentions specimens of T. botrytis in the Strassburg herbarium which he says have 4 ‘sessile, black, and brittle sporangia associated with others of brown and bright nut color.” They may have been immature specimens arrested in development. We have specimens from Blue Mounds, October 4, 1902 ; many Bean — The Myxomycetes of Wisconsin. 1297 from the cemetery woods, October 1903; from the university campus woods, October 1903; and from East Madison, August 5, 1903. All of these were growing on dead poplar wood. The sessile form from Blue Mounds was found April 29, 1904. It is on poplar bark. 1298 Wisconsin Academy of Sciences , Arts and Letters . INDEX OF GENERA AND SPECIES. Page 1 Arcyria cinerea . 1283 decipiens . 1295 denudata . 1282 ncarnata . 1280 magna . 1283 nutans . 1280 Oerstedtii . 1284 serpula . 1285 Badhamia papaveracea . 1238 rubiginosa . . . 1239 utricularis . 1237 varia . 1237 Brefeldia maxima . . 1252 Bysms fruticulosa . 1223 Ceratiomyxa fruticulosa . 1223 mucida . 1223 Cer atium hynoides . 1223 Chrondrioderma (See Diderma) crustaceum . 1251 globosum . 1250 reticulatum . 1246 Glathrus denudatus . . 1282 Page Dictydium cancellatum . 1271 cernuum . 1271 umbilicatum . . . . . 1271 Diderma contextum . 1226 crustaceum . 1250 difforme . 1248 cffusum . 1247 globosum . 1249 globosum . 1250 hemisphericum . 1251 Persoonii . 1248 reticulatum . 1246 spumarioides . 1249 squamulosum . 1243 Didymium clavus . 1245 eximium . 1246 farinaceum . 1244 melanospermum . 1244 melleum . 1232 microcarpon . 1246 nigripes . 1246 spumarioides . 1249 squamulosum. . . , . 1243 xanthopus . 1246 Diphtherium flavofuscum . 1273 Enteridium Rozeanum . 1264 splendens . 1264 Comatricha flaccida . . 1260 Friesian a . . 1258 longa . . 1257 nigra . Persoonii . . 1260 stemonitis . . 1259 typhoides . ......... 1259 Fuligo ovata. . . 1224 septica . 1224 varians . 1224 violacea . 1225 Hemiarcyria (See Hemitrichia) Craterium leucocephalum Cribraria aurantiaca . . . dictvdioides . . intricata . tenella . 1240 1268 1269 1270 1270 Hemitrichia clavata . serpula . stipata - vesparium. . Each nobolus occidentalis 1287 1284 1286 1285 1279 Diachea leucopoda. 1261 Lamproderma violaceum . . 1262 Bean — The Myxomycetes of Wisconsin. 1299 Page Leangium stipatum . 1286 Leocarpus fragilis . 1241 Licea effusa . 1265 stipitata . 1268 Lindbladia effusa . 1265 Lycogala epidendrum . 1272 exiguum . 1274 fiavo-fuscum . 1273 Lycoperdon cinereum . 1227 corticale . 1277 epidendron . 1272 favogineum . 1294 fragile . 1241 vesparium . 1285 Mucilago spongiosa . 1242 Mucor cancellatus . 1271 septicus . 1224 serpula . 1284 spongiosus . 1242 stemonitis . 1259 Ophiotheca Wrightii . 1275 Perichaena chrysosperma . 1276 corticalis . 1277 depressa . 1276 Physarum auriscalpium . 1228 cinereum . 1227 clavus . 1245 compressum . 1230 contextum . 1226 globuliferum . 1231 leucopus . 1233 melanospermum . . . . 1244 melleum . 1232 nefroideum . . 1230 nigripes . 1246 nutans . 1235 nucleatum . 1233 ornatum . 1228 polycephalum . . . 1234 ruliginosum . 1239 scroliculatum . 1228 sinuosum . 1226 Page Physarum — Continued. variabile . 1229 viride . 1236 Recticularia TiemispTierica . 1251 lycopern . 1263 maxima . 1252 sinuosa . 1226 i S phaerocarpus alius . 1235 gloluliferus . 1231 utricularis . 1237 viridis . 1236 Spumaria alia . 1242 Stemonitis ferruginosa . 1266 Friesiana . 1258 fusca . 1253 leucocepfiala . 1240 longa . 1257 maxima . 1253 Morgani . 1254 nigra . 1258 Smitbii . 1256 splendens . 1260 varia . 1289 Webberi . 1255 Tilmadoehe alba . 1235 mutalilis . 1236 nutans . 1235 polycephala . 1234 viridis . 1236 Trichia affinis . 1292 cinerea . 1283 chrysosperma . 1294 clavata . . 1287 decipiens . 1295 fallax . 1295 favoginea . 1294 nutans . 1280 persimilis . 1292 scabra . 1290 varia . 1289 Tubifera ferruginosa . 1266 stipitata . 1268 Tululina cylindrica . r". . 1267 effusa . 1266 stipitata . 1268 TRANSACTIONS OF THE 6 \ '■ '!’r t ' ' t; ' ' V :l‘f WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS VOL. XVII, PART II, NO. 6 MADISON, WISCONSIN CONTENTS Page The Water Mites. (With Plates XCTI-XCTII) ----- - Ruth F. Marshall , 1300 The Problem of Milk Supplies. (With Plates XCIV- XCV, and seven Figures) - William Bodge Frost, Z Proceedings of the Academy, List of Members Corrected to March 1, 1914, Charter - 1366 / _ . ' The annual half -volume of the Wisconsin Academy of Sci¬ ences, Arts, and Letters is issued in six numbers/under the edi¬ torial supervision of the. Secretary. The price of this number is 35c. 1300 Wisconsin Academy of Science#, Arts, and Letters. SOME NEW AMERICAN WATER MITES. Frontipoda americana nov. spec. Kuth Marshall. (Plate I, fig. 1-8) The genus Frontipoda has been represented until recently by one species only F. musculus (Mull.). This, however, is found widely distributed over Europe. In 1911 Dr. Halbert found a new species in Ireland, which he calls F. carpentari ; and in the same year, Dr. Karl Yiets described another new species, F. oxo- idea from Africa. There is now added an American species; this will probably be found to be widely distributed. It has al¬ ready been found in four places in Wisconsin (near Spooner, Cable, Delton, Madison), and in small pools near Ludington, Michigan, by the author; by Dr. E. A. Birge at New Orleans, and in collections from Sebago Lake, Maine, received from Mr. A. A. Doolittle. In all, twenty-four individuals have been examined. So far no other American species has been described. The most striking peculiarity of these water mites is the great compression of the body laterally. Moreover, the epimera are so completely united as to leave but traces of their outlines, and the shield thus formed covers almost the entire ventral surface, and even extends over the lateral surfaces to very near the center of the dorsal side, leaving but a narrow furrow extending from the region of the eyes to the posterior end. The genital area lies almost completely surrounded by this epimeral shield, the medium posterior parts of the last epimera not quite ap¬ proaching each other. The eyes lie close together. The genital cleft is guarded by two long flaps, and each has three elongated acetabula. Marshall — Some New American Water Mites. 1301 The legs are short, and their position is another striking pecu¬ liarity of the genus. The posterior ones have been pushed for¬ ward so that they come to lie almost in the same straight line with the palpi, one above the other on the sides of the body. The first three pairs end in claws; the fourth ends in a long saber¬ like spine. The palpi are small, and the fifth segment is cleft at the end. F. americana resembles F. musculus, but it is smaller, and it differs, moreover, in several details from the European form. Its length is about 0.51 mm., and the color is yellow green on the dorsal side, yellow on the sides. The eye region projects con¬ spicuously beyond the anterior border of the body, and the pos¬ terior end has a similar, though smaller projection. The palpi are stouter than in F. musculus. A pair of large glands, like those described for the genus Lebertia were found, the tubes opening on the capitulum. Lebertia distincta nov. spec. (PI. II. fig. 21-23) This new species of Lebertia was found, a single individual, in Sebago Lake, Maine, Aug. 1911, by Mr. A. A. Doolittle. The epimeral shield somewhat resembles that of L. porosa ; but it is more extensive and more completely encloses the genital plates. The outlines of the fused epimera are not so fully obliterated as in most species of the genus, a character which has suggested the specific name. The genital area is elongated and widens precep- tibally at the posterior end. The body and plates are finely pap- illiated. The palpi are rather slim and bear a few coarse hairs. The first pair of legs have no swimming hairs, the second and third have a few short ones on the fifth segment, while the fourth have a few on the fourth segment. All of the legs bear bristles The body is about 0.92 mm. long. The color was destroyed by the preserving fluid. Arrhenurus elevatus nov. spec. (PI. I fig., 12-15; PI. II, fig. 16) This species closely resembles A. longicaudatus Mar. in the possession of a long slender appendix; but it differs conspicu¬ ously from it in the greater height of the dorsal hump on the 1302 Wisconsin Academy of Sciences , Arts , and Letters . middle of the appendix. In addition, the area inside of the dor¬ sal line is depressed, not elevated as in the related species ; and in the small structures on the end of the appendix on the dorsal side the two species do not agree. The palpus is characterized by the great length of the saber-like hair on the fourth joint, and by the presence of a small bunch of hairs on the inner side of the second. But one specimen is known; this was found in Sebago Lake, Maine, Aug. 4, 1911. The entire length of the body is 1,28 mm. ; the color is orange green. Arrhenusus crenellatus Mar. (PL I, fig. 9-11) In collections from Sebago Lake, Maine (Aug. 4, 1911), there were found six males of this species, and one female which exam¬ ination of the palpi proved to be A. crennellatus also. The epi- mera of the female are like those of the male. The wing-shaped genital areas completely enclose the genital plates as shown in the figure. The dorsal enclosed area is an oval of the usual form. The second joint of the palpus of this species has an area of fine hairs; the former description of these hairs (1908) as blade-like is now found to be an error. The color of the preserved female is dull yellow ; the length of the body is 0.87 mm. Notes on the Arrhenuri Collections made since 1910 (the last published notes on the genus), together with collections from the East very kindly con¬ tributed by Mr. A. A. Doolittle of Washington, D. C., have added one new species to the genus and the female of another species, as already described, while the range of still other species has been extended. Some details of structure not given in earlier studies are given in the plates, and the list of species is given be¬ low. In pools at Ep worth eight, near Ludington, Michigan, were found A. scutulatus Mar. (PL II, fig. 17, 18) A. infundibular is Mar. (PL II, fig. 19) A. scutuliformis , Mar., female, (PL II, fig. 20.) A. pseudocylindratus Piers. Marshall — Some New American Water Mites. 1303 •A. semicircular is Piers. A. manubriator Mar. A. marshalli Piers; found also in Lake Mason, Briggsville, Wisconsin A. megalurus Mar ; found also in Lake Mason. A. americanus Mar ; found also in Lake Mason and at Urbana, Illinois. A. magnicaudatus Mar, in Lake Mason. In Sebago Lake, Maine, there were found six species, all here recorded for the first time from this state : A. crenellatus Mar. (PI. I, fig. 9-11) A. scutulif ormis Mar. A. marshalli Piresig. A. parallelatus Mar. A. elevatus nov spec. (PI. I, fig. 12-15; Plate II, fig. 16) A. americanus Mar; found also in Long Lake, near Sebago; at Clinton, New York, and at Princeton, New Jersey, the first record for the latter state. A. birgei Mar. was also found for the first time in New Jersey, at Princeton, Carnegie Lake; and A. major Mar. for the first time for Maryland in Carderrock pool, near Washington, D. C. 1304 Wisconsin Academy of Sciences , Arts, and Letters. EXPLANATION OP THE PLATES Plate XCII Fig. 1, Frontipoda americana nov. spec., lateral view “ 2, Frontipoda americana nov. spec., ventral view “ 3, Frontipoda americana nov. spec., dorsal view “ 4, Frontipoda americana nov. spec., 1st leg “ 5, Frontipoda americana nov. spec., 4th leg “ 6, Frontipoda americana nov. spec., palpi and maxillary shield " 7, Frontipoda americana nov. spec., right palpus, inner side " 8, Frontipoda americana nov. spec., surface markings, a, young adult; b, older adult “ 9, Arrhenurus crenellatus Mar., female, genital field “ 10, Arrhenurus crenellatus Mar., four joints of the left 4th leg, male “ 11, Arrhenurus crenellatus Mar., left palpus “ 12, Arrhenurus elevatus nov. spec., dorsal view “ 13, Arrhenurus elevatus nov. spec., ventral view “ 14, Arrhenurus elevatus nov. spec., lateral view “ 15, Arrhenurus elevatus nov. spec., left palpus Plate XCIII Fig. 16, Arrhenurus elevatus nov. spec., left 4th leg “ 17, Arrhenurus scutulatus Mar., right 4th leg ** 18, Arrhenurus scutulatus Mar., right palpus “ 19, Arrhenurus infundibularis Mar., palpus “ 20, Arrhenurus scutuliformis Mar., female, dorsal view ** 21, Lebertia distincta nov. spec., ventral view “ 22, Lebertia distincta nov. spec., right 4th leg ** 23, Lebertia distincta nov. spec., left palpus Biological Laboratory, Rockford College. Tuans. Wis. Acad. Vol. XVII Plate XCII Marshall : Water Mites Trans. Wis. Acad. Vol. XVII Plate XCIII Marshall : Water Mites Frost — Bacteriological Control of Public Milk Supplies. 1305 THE BACTERIOLOGICAL CONTROL OF PUBLIC MILK SUPPLIES." William Dodge Frost I. INTRODUCTION. The question of a safe milk supply is a subject on which much good bacteriological work has been done in recent years. There is, however, a great deal still to be done before the bacteriolo¬ gist can check up and satisfactorily control the production of a sanitary milk supply. In the past little has been done in bacteri¬ ological milk analyses beyond making a quantitative determina¬ tion of the bacteria present. Granting that this is the most im¬ portant single item that can be determined, it still leaves much to be desired. In times of epidemics special search is some¬ times undertaken for the suspected bacteria of disease. In cer¬ tain laboratories, tests are regularly made for the streptococci, but as yet there is no concensus of opinion as to what their pres¬ ence means. In other laboratories B. coli is sought for and re¬ garded as an index of pollution. It is, however, still an open question whether or not it can be regarded with the same sus¬ picion in milk as in water. Still again, Bact. welchii, in England particularly, is regarded as an index of fecal contamination. The necessity for reliable methods of differentiating pure from contaminated milk is now all the more urgent because of the widespread use of the pasteurizing process. Modern methods of pasteurization employ a degree of heat so little above the thermal death point of dangerous bacteria that the treatment of milk in this way commercially will give a false idea of security to the consumer unless the sanitarian can quickly and accurately determine any failure to sufficiently heat the milk. * Submitted as a thesis for the degree of Doctor of Public Health, Harvard Medical School, Boston, Mass., May, 1918. 1306 Wisconsin Academy of Sciences, Arts, and Letters. I his investigation was undertaken with the following pur¬ poses in view : first, to study, criticise, and, if possible, improve some of the bacteriological methods occasionally used in milk work; second, to try out certain of these methods on different classes of milks, with special reference to the ease and reliability with which they may be used to differentiate good (or safe) from bad (or dangerous) milks; third, to determine, in a general way, the conditions of the milk supply of a large city by means of the technique selected. II. BACTERIOLOGICAL METHODS OF MILK ANALYSIS. A. Collection of Samples. Description of Collecting Case. It seemed necessary to have considerably more milk than could be collected in a test- tube such as is provided for in the milk-collecting outfit of the Boston Board of Health, or that used bv Miss Schroeder in her work for the New York City Board of Health work.* Four ounce bottles with metal caps which screw on and which are ordinarily known as oil sample bottles were used. In these bottles about one hundred cubic centimeters can be placed and still leave plenty of room for shaking. As a carrying case a fiber handbag was secured, 8 inches wide, 8 inches high, and 16 inches long. Inside of this a copper box was fitted, somewhat smaller than the bag, and so arranged that there would be an air space all around it of an eighth to a quar¬ ter of an inch. The box was divided into three compartments by partitions, one to contain eighteen of the above bottles, held in place by a metal rack. This rack can be collapsed if necessary, so that pint milk bottles can be carried. Another compartment is for ice, and the third, rather narrow and the full length of the box, was fitted with a pipette case. This was held up to the top by lugs, leaving an empty space below into which the used pi¬ pettes can be placed. The pipettes used were sixteen inches long and made of glass or aluminum tubing, having about % of an inch as inside diameter. The general arrangement is shown in the accompanying figure. Fig. 1, Plate XCIV. * Jour. Infect. Ris., 11, p. 2. TRANS. WIS. ACAD. VOL XVI! PLATE XCIV FIGURE I FIGURE 2 FROST:— MILK SUPPLIES COCKAYNE — BOSTON Frost — Bacteriological Control of Public Milk Supplies. 1307 B. Quantitative Methods. 1. Media. The media used, agar and gelatine, were prepared according to the standards recommended by the Committee of the American Public Health Association.* The reaction varied at the time it was made and before sterilization from +0.7 to +1. 2. Dilution Methods. a) Water Blanks f. All laboratory workers know that “ water blanks,” made for the purpose of diluting the sample to be analyzed, change in volume during the process of sterilization. The committee hav¬ ing in charge the preparation of standard methods of milk anal¬ ysis recognize this for they made the following statement: “In order that the bottles and tubes may contain 99 and 9 c. c. respectively after sterilization, they should be tilled a little above these marks ”4 No one, however, seems to have determined just what this loss amounts to or how it can be avoided. In fact, there seems to have been little or nothing written on this phase of the subject of quantitative analysis. It is, nevertheless, an important matter for the reason that this is one of the steps that ought to be precise. Certain factors are in the nature of the case indefinite, as for instance, inherent errors in sampling, the probability that certain colonies are descended from, a group of germs rather than a single one and the difficulty of measuring very small quantities of fluids with the pipettes used. For this reason it is very important that appreciable errors in technique should not be introduced where it is possible to avoid them. It seemed worth while, then, to determine the extent of, the error in this connection and how it could be avoided. I. Loss of Weight in Autoclaving. A -definite amount of water, accurately determined, was placed in bottles ; these were plugged with cotton and autoclaved and then the water remaining was carefully determined. At first * Standard Methods for the Bacterial Examination of Milk. Am. Jonr. Pub. Health. Standard Methods of Water Analysis. Am. Jour. P. H., 1912. f This section read before the Soc. of Am. Bact. New York. 1913. % Proc. Assoc, of Am. Med. Milk Commissions, 1910, Vol. 4, p. 242. 1308 Wisconsin Academy of Sciences, Arts, and Letters. the determinations were volumetric, but- later, and principally, gravimetric methods were used. This was done by weighing the bottle empty and then adding a definite weight of water. After sterilization the bottles were again weighed and the loss deter¬ mined to within five cne-hundredths of a gram. In most of the experiments eight ounce Blake bottles were used. These were filled with a hundred grams of water. The results obtained in a considerable number of experiments are shown in the follow¬ ing table : Table a. Loss of Weight in Autoclaving 100 Grams of Tap Water. No. bottles. Greatest loss. Smallest loss. Average loss. 20 . 7 grams 7 5 5 8 5 4.1 6 8.8 4 grams 1 3 4 7 3 3.6 4.4 7 5.20 grams 4.65 3.75 4.00 7.70 4.00 3.9 4.80 7.62 20 . 10 . 10 . 10 . 10 . 3 . 10 . 10 . Average total loss . 5.07 or 5.07% It will thus be seen that the amount of loss is considerable and variable. An explanation of these facts is sought in the follow¬ ing experiments. II. A Comparison of Several Different Autoclaves. The autoclave used in the above experiments was a large (No. 6) Kny-Scheerer Co. Steam Pressure Dressing Sterilizer (A). To show that loss noted was not due to any imperfections of the particular autoclave or the method of using it, several other sterilizers were tested, and in most cases these other autoclaves were run by the person ordinarily using them, and not by the writer. These other autoclaves may be described as follows: (B) A small size of the same type as above. YC) Similar in its general construction to the above but with¬ out a name plate. The steam in this case was generated by an electric generator. (D) A vertical cylinder after the French type. The steam is generated from a layer of water in the bottom. Frost — Bacteriological Control of Public Milk Supplies. 1309 (E) A Bramhall Deane autoclave. Steam from high pressure steam system. In the comparative tests the following results were obtained: Table b. Comparison of Several Different Autoclaves. Loss in grams per 100 grams or per cent. Autoclave. Number of bottles. Greatest loss. Smallest loss. Average. A . 128 8.8 grams 0.1 grams 5.07 grams B . 10 1.9 0.9 1.51 C . . . 10 3.5 “ 1 2.7 3.23 D . ...1 10 8.7 “ | 6.2 7.73 E . 10 2.8 1.8 2.32 III. Cause of Loss. The loss by evaporation is very evidently due to the fact that condensation of the steam filling the sterilizing chamber occurs during the process of sterilization. This permits the ebullition of the fluids being sterilized. Undoubtedly this goes on during the entire process but is perhaps most pronounced at the end after the steam has been shut off. When the autoclave is allowed to cool off gradually by shutting off the steam a diminished pres¬ sure is produced. In autoclave A this varies, as determined by experience, from five to fifteen pounds. Under these conditions of reduced pressure it would seem that the hot fluid must boil with great vigor. If, however, the loss were due solety to the boiling at this time, the amount of liquid lost would be independ¬ ent of the time of exposure, but this is not in accord with the facts observed. It was found that a series of bottles autoclaved for five minutes and allowed to cool slowly, lost on the average 4.8%, while another series run under exactly similar conditions, but for an hour and five minutes, and allowed to cool slowly, lost 7.6%, or nearly twice as much. IV. Prevention of Loss by Use of Closed Autoclave. A little reflection convinces one at once that it is possible to prevent this ebullition by closing the autoclave while cold and keeping it closed until the process of sterilization is completed and the autoclave cooled down, thus retaining air. It has been 1310 Wisconsin Academy of Sciences , Arts , and Letters. the custom of various laboratories to use the autoclave in this manner for the purpose of sterilizing blood serum, and it is very evident that the boiling of the serum must be absolutely pre¬ vented here. The following table gives the results when this method is used : Table c. Loss in the Closed Autoclave. Number of bottles Greatest loss. Smallest loss. Average. 10 . | 10 . 10 . 10 . 0.4 grams 0.4 0.5 0.6 0.5 0.1 grams 0.1 0.2 0.1 0.0 0.26 grams 0.26 0.37 0.36 0.27 0.30 10 . Total average . . . It will be seen from the above table that there is very little loss when the autoclave is run in this way, namely, only 0.3 of one per cent. V. The Efficiency of the Autoclave Containing Air and Steam. The question, then, naturally arises, does the autoclave steri¬ lize when run in this manner? — i. e., can it be relied upon to sterilize? The following experiments bear upon this point: The autoclave (A) was run for 20 minutes at 15 lbs. as in the previously described experiments, and several tubes of freshly v prepared and unsterilized bouillon were run with each lot of bottles. The bouillon tubes were then put in the incubator at 37° C. In all cases the tubes remained sterile. Attempts were then made to test the efficiency of this method of sterilization more thoroughly as follows: Bouillon was made in the usual way except that it was allowed to cool down and was then in¬ fected with spore-bearing maternal ; namely, street dust, chopped hay and sewage. It was then filtered through paper and run into bottles and autoclaved. All ten bottles remained sterile for many weeks. As proof of the fact that the material was difficult to sterilize, bottles were filled with the same bouillon heated in the Arnold steamer on three successive days, for from 30 to 45 minutes and incubated. Out of twenty bottles so run, four developed growth. Another autoclave (B) was closed up cold and run for 20 minutes at 15 lbs. and failed to sterilize any of the twelve bottles so heated. Frost — Bacteriological Control of Public Milk Supplies. 1311 It would thus seem that the effectiveness of different auto¬ claves varies when run in htis manner and that considerable work would have to be done with a particular autoclave to de¬ termine whether or not a single exposure is effective and, if so, the time and pressure required. It seems certain, however, that two exposures on consecutive days would always be effective, es¬ pecially if the bottles were put in the incubator between heat- tings. Whatever the method of sterilization employed, it seems desirable to use bouillon or peptone water instead of the water in these “ water blanks,” especially if they are to be carried about in portable outfits, in order that the danger from contami¬ nation by growth in them may be readily detected. VI. Loss Due to Evaporation on Standing. It is a matter of considerable convenience, especially in the smaller laboratories, to sterilize a number of these “ water blanks” at once and store them ready for use at any time. If this is done it is important to know the rapidity with which evaporation will take place on standing. The rate will depend upon a number of factors, such as the size and shape of the bottle, the size of the mouth, the temperature of the room and the humidity of the air. Tn regard to the size of the bottle, it is probably only necessary to consider the area of the exposed surface compared with the volume of the fluid. On this account a tall narrow bottle is better than a broad one. Likewise, it is apparent that a narrow bottle is more desirable than a wide¬ mouthed bottle. The amount of evaporation from one hundred cubic centimeters in an ordinary eight-ounce narrow-mouthed Blake bottle is shown in the following table : Table d. Loss due to Evaporation. Number of Loss due to Time of Loss due to Total loss. bottles. sterilization. standing-. standing-. 10 4.1 grams 8 weeks 8 4.9 grams 4.8 9% Without caps 10 4.3 9.1% With caps This evaporation might be prevented by the use of glass stop¬ pered bottles. Such, however, are not satisfactory for other reasons. The same end can be attained by the use of cotton 1312 Wisconsin Academy of Sciences , Arts, and Letters. stoppers and a paper cap. It should be noted, however, that there was practically no checking of evaporation by the use of thin paper caps in the experiment described above. The use of waxed paper or tin foil will be found efficient. Except for the trouble in opening, a very satisfactory procedure is to dip the cotton plug in melted paraffin. My own suggestion is that the mouths of the bottles be plugged with a cork stopper covered with a thin layer of cotton such as is used by the Boston Board of Health laboratory in their blood serum tubes. This reduces the opportunity foe evaporation to a minimum, while allowing for the necessary interchange of gases during sterilization. The neck of the bottle is then covered with paraffin paper, tied on with a string, this, of course, to be done before steriliza¬ tion. When the bottle is to be used this paper cap is to be care¬ fully removed and kept and then when the dilution has been made the cap is to be placed over the neck and the plug used to press, the paper into the mouth of the bottle. This closes the bottle as effectively as a glass stopper and allows thorough shak¬ ing of the sample — a matter of prime importance in quantita¬ tive work. Fig. 2, Plate XCIY. b) Dilution Scheme. Milks need to be diluted before they are plated. For certified or pasteurized milks a dilution of 1-100 is usually sufficient. Milks of the inspected class fre¬ quently need to be diluted 1-1,000, while raw market milks need to be diluted from 1-1,000 to 1-100,000. The scheme indicated in the following diagram (Fig. 3.) gives at a glance the proce¬ dure necessary to obtain the desired dilution. A microscopical examination of a milk by the Stewart- Slack method is sometimes of value in determining the dilution needed for a particular Frost — Bacteriological Control of Public Milk Supplies . 1313 sample. Unless this is done it is necessary to make more than one dilution of each sample of milk. c) Use of Pipettes. I. Different Forms. The pipettes used for milk and water work vary in length, diameter and shape. The longer and nar¬ rower, of course, the more accurate the graduations. Some of the pipettes used are graduated with one mark and deliver 1 c.c. Others have two marks the right distance apart to deliver one c.c. Frequently the graduations are in fractions of a c.c. as tenths or hundredths. Some workers also measure fractions of a c.c. by counting the drops delivered to the c.c. by a one or two mark pipette, and then take the desired number of drops. There should, perhaps, be no dogmatic statement made in regard to the size, shape, graduation, etc., of the pipette. But it has seemed worth while to make some comparisons of the different forms, and especially the influence of the point or delivery end, since some laboratories have recently introduced and used perfectly straight tubes, not at all narrowed at the end. See fig. 4. Fig. 4. Forms of pipettes. A. Ordinary form of pipette used in milk and water work. B. Form suggested for use with “Pipettometer”. D. Pipette used in New York City Board of Health. The accuracy of these was tested in the following manner : One c.c. of a certified milk was added to 99 c.c’s of sterile wa¬ ter, thoroughly shaken, and then 4 c.c’s were taken out consecu¬ tively and plated, using first a pipette of ordinary form, and 1314 Wisconsin Academy of Sciences, Arts, and Letters. then the “tube” pipette. The plates were grown at room tem¬ perature and counted six days later. There were only a few colonies on the plate and all were, therefore, counted. Ordinary pipettes, plate 1 . 78 colonies plate 2 . 76 colonies plate 3 . 65 colonies plate 4 . 77 colonies Tube pipettes, plate 1 . 63 colonies plate 2 . 31 colonies plate 3 . 84 colonies plate 4 . 73 colonies The percentage of variation in the first set was 17%, in the second case it was 84%, or practically five times as great. The shape of the pointed end and the size of the opening are matters of some importance. The smaller the opening the more accurate the pipette. If the point is drawn out fine, the less fluid is likely to be taken up by it on the outside of the pipette to run down and increase the volume of the discharge. On the other hand, such points are easily broken and furthermore, if cleaning solutions are used, there is the greater probability that the chemical may not be perfectly washed out. Again, such pipettes are slower and require considerably more time. It seems reasonable that such pipettes should have an opening of about 2 mm. and should be drawn out to a point and not merely rounded off in the flame. II. Method of Cleaning Pipettes, The matter of cleaning pipettes is of considerable importance, not merely because they ought to be kept bright and clear, but because, especially when they are used for milk, they become greasy and do not deliver all of their contents since a part of it sticks to the sides. It is the custom in many laboratories to clean these pipettes by immersing them for several days in a cleaning solution made from sulphuric acid and potassium bichromate, then washing them in water, or first in alcohol and then water. This requires several days. Some experiments were made for the purpose of determining whether or not it would be as satisfactory to clean the pipettes well in soap and water and then sterilize them at a high degree of heat, say 250° 0., for a time in order to dry distill the organic matter. This method does not seem to suc¬ ceed, at least at a reasonable temperature within a reasonable length of time. Frost — Bacteriological Control of Public Milk Supplies . 1315 Other pipettes were carefully cleaned with soap and water and then immersed in alcohol for a few minutes, dried, and after sterilization in the dry-air sterilizer for 1 hour at 150° C. were found to be free from grease and entirely satisfactory. It seems, then, quite sufficient in cleaning pipettes to get them bright and clear by the use of water or soap or soap-powder, and then immerse them in alcohol for several minutes. "When dry they are then ready to be sterilized. III. A Mechanical Volumetric Pipette, or Pipettometer. The pipettes used for the purpose of diluting milk are of various types. Those carefully graduated to tenths or hundredths of a c.c., and frequently used, are expensive. With ordinary pipettes there is the danger that in using them the saliva may run down into the material being measured. This can be prevented by inserting a small plug of cotton in the end that is put in the mouth. It requires a good deal of time to put in the plug and later to take it out. Another danger, where the ma¬ terial worked with contains pathogenic germs, is that these may be accidentally sucked into the mouth — a catastrophe that has too often brought dire results to laboratory workers. The follow¬ ing simple devise obviates many of the objections raised as ap¬ plying to the use of pipettes in general, and will be found use¬ ful for routine as well as special work, if not on all occasions. It was suggested by the pipette holder described by Rosenau* and may be considered a modification of it. It can best be de¬ scribed by reference to the accompanying figure. Pig. 5. A is a wooden support with a short arm on the left, and a broad arc on the right. The whole is supported by a heavy base A. On this is a bent glass tube (a, b, c, d) with a flexible joint at c, and a bulb at d. This tube is filled with mercury from e to d. When the arm (B) is moved to I, the mercury stands at 1.0, and when the arm (B) is lowered to II, the mer¬ cury stands at 0. The end of the glass tube (at a) is fitted with a rubber tube into which a' pipette may be readily slipped (g). The apparatus is used, by raising the arm (B) to I, a vessel con¬ taining the fluid to be drawn up into the pipette is brought up to the point of it and then the agm (B) is lowered to II. In this way the fluid is drawn into the pipette. It can then be dis¬ charged in whole or in part by raising the arm (B). The gradu- * Hyg. Lab. Bull. 21, Gov’t. Print. Office, 1905, p. 62. 1316 Wisconsin Academy of Sciences , Arts , and Letters. ations on the tube b, c, e must be made by discharging water into the pan of a fine balance. In this way the 0.5 and 1.0 c.c. points can be determined. It will be accurate enough to meas- use off the intervening points. At first thought it might be sup¬ posed that all that it would be necessary to do would be to put a carefully graduated pipette in between b and c, but in practice it does not work well because the weight of the fluid in the pipette rarities the column of air between a and the mercury at e, so that it does not take up quite all that would be indicated. SCALE I =• 5 c.m. Fig. 5. Pipettometer — detail drawing. "When the graduations are once obtained it is then possible to measure any fluid very accurately that has practically the same specific gravity as the fluid used to make the graduations. The chief value of such a piece of apparatus is that in addition to preventing the danger of saliva getting into the fluid handled, and of handling pathogenic germs, it is economical in that it makes possible the use of simple tubes instead of pipettes. These tubes can be readily made by evenrthe unskilled in glass blowing. An additional advantage in the use of this apparatus is the fact that no error is introduced by the use of pipettes not perfectly Frost — Bacteriological Control of Public Milk Supplies. 1317 clean and free from grease, since a definite volume is pushed, out. If some clings to the sides more will be pushed out in its stead. d) Ring Method (Schroeder). In regard to the ring method of securing small fractions of a c.c. of milk, Dr. M. C. Schroeder of the Eesearch Laboratories, Department of Health, New York City says: “It was found af¬ ter a number of experiments that a small % in. No. 20 japanned curtain ring would take up within 5% of 0.01 c.c. of milk, and by dropping this ring full of milk directly into the melted agar tube we could eliminate one or more of the dilution bottles and thus save labor and a possible source of error. The rings are dipped into the milk by means^f a platinum hook and dropped directly into about 8 c. c. of nutrient agar held in the tube. ’ ’ — Schroeder.* An attempt has been made to determine the accuracy of these curtain rings as volumetric devices. This was done first by de¬ termining the weight of such rings before and after being filled with milk. Sensitive chemical balances were used. Several weighings follow: Two rings were balanced, then one of the pair was dipped in milk and weighed : 1) Weight required to balance again . 0.008 gms. 2) Weight required to balance again . 0.008 gms. In another series: 8) Weight of ring and milk was found to be . 054 gms. Weight of ring after washing and drying . 044 gms. Weight of milk taken up . 01 gms. 4) Weight of ring with milk . 054 gms. Weight of ring after washing and drying . 043 gms. Weight of milk taken up . 011 gms. Culture Tests. A Certified milk was used. After a very thor¬ ough shaking five rings were dipped into the milk and plated. Four of them were put into the Petri dish. The other one was dropped into the melted agar in the test-tube and then this tube of agar was poured. The results follow : 1) Developed . 50 colonies 2) Developed . 24 colonies 3) Developed . 25 colonies 4) Developed . 9 colonies 5) (In test-tube) developed . 27 colonies * Jour. Infect. Dis., 1912, 11, p. 3. 1318 Wisconsin Academy of Sciences , Arts, and Letters. The average was 27 and the percentage of variations 152% One c.c. of the same milk at the same time was put with 99 c.c. of sterile water, thoroughly shaken, and from this four plates were made which gave the following results : 1) Developed . 78 colonies 2) Developed . 76 colonies 3) Developed . 65 colonies 4) Developed . 77 colonies The average number of colonies was 74, and the percentage of variations was 17%. Comparing the two findings it is seen that the ring method de¬ veloped 27 against 74, that is, only about a third as many as the standard method, and whereas the standard method showed a variation of 17%, the plates in the ring method showed a 152% variation among themselves. The reason why the rings take up practically .01 of a gram of milk, but deliver only one-third of this amount, judging from the bacterial count, is because the rings are hollow and hold back the milk, and also because it is difficult to wash out of them all of the bacteria. 3. Incubation of Cultures. The question of the best tem¬ perature at which milk plates should be incubated is, it seems to me, still an open one. The New York Commission, the Milk Committee of the American Public Health Association, as well as the Committee on Standards of the American Association of- Medical Milk Commissions, have, nevertheless, all decided in favor of the 37° C. count. The chief reason for this is, no doubt, that the results of an analysis can, in this way, be secured some days earlier than they can at a lowed* temperature. It is my ex¬ perience. however, that a larger number of bacteria always de¬ velop at a lower temperature, sav 21° C., than at 37° C. In the present investigation the temperature of the 'room (21°C.) has been employed exclusively. Any results not so ob¬ tained are definitely marked. The plates were counted after they had been grown for at least 5 days. The temperature was regulated quite closely, see chart, Fig. 12, as an example of the temperature variations. The reason for the use of this tempera¬ ture was a desire to get the maximum count. A strong argument for the use of a low temperature in milk analyses, where it is im¬ portant to determine the general character of the, bacteria, is Frost — Bacteriological Control of Public Milk Supplies. 1319 developed in a later paragraph, where it is shown that a curve representing the rate of development of the colonies in a good milk is quite different from the rate of development in a poor milk. See p. 1337. 4. Counting Colonies. a) Methods. The plates were all counted under a five inch reading glass, and all of the colonies were counted including the lactic acid or pin-point colonies. Where possible, the entire plate was counted. On heavily seeded plates as large a propor¬ tion was counted as possible. The plates were always run in duplicate and the average taken. A self-registering hand counter was used to minimize errors due to personal equation. b) A New Form of Counting Apparatus. During the course of the work a new form of counting apparatus was constructed which may be briefly described as follows : It consists of two plat¬ forms. one below for the Petri dish, B., and one above to hold the magnifying lens R., Fig. 1, Plate XCV. The dish is supported on a screen of fine wire with one centimeter meshes instead of the usual ruled glass plate. The dish is centered by a mechani¬ cal arrangement which at the same time automatically indicates the area of the dish on a scale at the right, E. The lens is a five- inch reading glass. A metal shield prevents reflections from the surface of this. Below the lower platform is a black surface which furnishes the proper background. It is also provided with a self-registering hand counter, F. C. Tests for Bacillus Coli in Milk. I. Methods. a) Uses of Fermentation Tubes. I. Lactose Peptone Bile. This was prepared as recommended, put in Smith tubes, in which 25 c. c. were used, or in Durham tubes, where 10 c. c. were required. The inner tubes, in the latter ca^e, were one dram vials 65 mm. long. In either case readings were made after 24 and 48 hours of incubation at 37° C. For measuring the amount of gas, a gasometer was used for the Dur¬ ham tubes, as well as for the Smith tubes. Fig. 7. II. A. New Medium — Neutral Red Milk Broth. In this medium the milk sugar is furnished by the mdk itself. It was this idea, 1320 Wisconsin Academy of Sciences, Arts, and Letters. as well as the presence of the casein, that was thought to be a desirable innovation. It is prepared as follows : 10 grams of peptone and 3 grams of extract of beef are added to 1 liter of water. When the peptone and beef extract have gone into solution, as a result of gentle heating, 500 c. c. of separated (i. e., fat-free) milk are added, and the reaction of the whole is then so adjusted as to bring the reaction to +0.7. Fif¬ teen cubic centimeters of a 1 % aqueous solution of neutral red is added. The medium is then ready to be put into fermentation tubes and sterilized as other sugar media. Fig. 7. Gasometer for Durham tubes. In such a medium B. coli first coagulates the casein, then turns the medium in the closed arm yellow, forms gas, and also by its reducing action causes the whey or fluid part of the medium to become fluorescent. The amount of gas formed by B. coli in this medium is considerably less than that produced in lactose pep¬ tone bile, i. e., from 12 to 35% as contrasted with from 30 to 70%. In addition to this there are the changes in the milk part of the medium as well as the changes in the neutral sred. The advantages of this medium over the lactose peptone bile are first, the ease with which it is prepared, since the materials are prac¬ tically always at hand in all laboratories, and second, the large Frost — Bacteriological Control of Public Milk Supplies. 1321 number of changes in color or character of curd which are signi¬ ficant, and third, a more constant amount of gas production. It appears to be worthy of further trial, and it is to be hoped that other workers will test its merits. b) Comparison of Smith and Durham Tubes. The Smith fer¬ mentation tubes are inconvenient in several ways as compared with the Durham tubes. They are more difficult to fill ; they re¬ quire considerably more medium ; they are difficult to store and hence are harder to handle in the sterilizer and incubator, and they are more time-consuming to clean. If the inner tubes of the Durham apparatus are of the same length it is not difficult to measure the amount of gas formed ; in fact, a gasometer can be constructed and used exactly as with the Smith tube. The tubes used for this wock were heavy walled test-tubes, y2 inch by 6 inches, and a homeopathic vial of 1 dram capacity and 65 mm. long. The gasometer used is shown in Fig. 7. The Smith tube was used exclusively in the early part of the investigation, then, for a time, the two kinds were run in dupli¬ cate, and finally the Durham tube was used instead of the Smith tube, with equal satisfaction, so far as the results obtained were concerned, and with much greater comfort. When the gas for¬ mula is desired, or a titration of the medium from the closed and open arm separately, then the Smith tubes must be used. When, however, it is sufficient to know that gas is formed, and about how much, the Durham tube is quite sufficient, and is very much more convenient, and saves medium. c) Use of Endo’s Medium. The use of Endo’s medium for the detection of B. coli in milk has been tried by a number of workers. Kinyoun and Deiter, for example, # are very enthu¬ siastic over its use. Ford,f however, says: “The results were, in general, not so satisfactory as those obtained from a dextrose tube.” It has been tried out. in the course of my work, and a column is provided in the Tables I. and VIII. for the data ob¬ tained. Towards the last its use was discontinued, not so much because it was thought useless, but because of the difficult tech¬ nique it requires when compared with the use of fermentation tubes. * Am. Jour. Pub. Health, 1912, 2, p. 979, and also in personal conver¬ sation. f Johns Hopkins Hosp. Bull., 1913, 24, p. 25. 1322 Wisconsin Academy of Sciences , Arts , ayid Letters. The method of preparation followed was that suggested by Kendall and Day.t Later, media made as above was neutralized biologically as suggested by Kinyoun and Dei ter.* * This method led to somewhat more satisfactory results due, it would seem, to the use of phenolthalein rather than litmus as an indicator, and consequently a more definite point of alkalinity. It seems, how¬ ever, unnecessary to neutralize biologically each batch of medium as suggested by Kinyoun and Deiter, but when the proper reac¬ tion has been determined this point can be satisfactorily secured by the ordinary methods of titration. It would seem possible also to modify this medium and its method of use so that it would be both easily handled and extremely useful. Fig. 8. Thermal Death-point Tubes. D. Thermal Death Point op Bacillus Coli. 1. New Method of Testing. Although the thermal death point of B. coli has been frequently determined, it seemed desirable to test the particular strains used here and to do it quantitatively. The method used is a modification and improvement on a method previously used by the writer. In its present form it is somewhat like the method suggested by Sternberg, except that by the use of the mechanical volumetric pipette, previously described, it is possible to take up measured quantities. t Jour. Med. Research, 1911, 25, p. 95. * Loc. cit. Frost — Bacteriological Control of Public Milk Supplies. 1323 The method is as follows : Glass tubes, 6 to 8 mm. in diameter, are drawn out at one end into a; straw about 1 mm. in diameter. The form and size are given in Fig. 8. These tubes are then plugged with cotton and sterilized. The fine pointed end may either be sealed, or it can be flamed just before use. One of these tubes is then placed in the pipettometer and 0.1 of a c. c. of the suspension is drawn into the tube. This amount is then drawn up the tube about an inch, and the end of the straw is sealed in the flame. This tube can then be removed from the pipettometer. It is now ready to be put into the water-bath. A series of tubes are prepared in this way. One is plated directly and the others are heated at various temperatures for the same length of time, or at the same temperature for varying lengths of time, as the case may require. When the tubes are in the water- bath special care must be taken to keep the thin straws below the surface of the water so as to be sure that all of the bacteria are sufficiently heated. After the proper exposure the tubes should be removed from the water-bath and immersed in ice water. In plating, the sealed end is broken off with sterile forceps and the contents blown into a Petri dish, and covered with agar. The tube plated directly serves as a control. By this means it is pos¬ sible to determine what Gage calls the “normal thermal death- point, ” as well as the “absolute thermal death-point.” E. Inhibiting Action of Milk in the Gas Production, by Bacillus Coli, in the Fermentation Tube. Dr. Theobald Smith called my attention to the fact that B. coli is not capable of producing gas in milk when it is in the fermen¬ tation tube, as it does under similar conditions with other -sugar media. The facts are shown in the following series : Six fermentation tubes of milk, inoculated with one loop of a 24 hr. culture of B. coli. . 0, 15%, 5%, 5%, 0, 20% Average = 7 % Six fermentation tubes of lactose pep¬ tone bile, inoculated as above.... 60%, 55%, 45%, 50%, 50%, 50% Average = 52% In view of these results, which are taken as representative, it was natural to ask: Does the addition of milk in small quantities, i. e., 1, 2, or 3 c. c., inhibit the characteristic reaction of any co¬ lon bacilli that might be present? 1324 Wisconsin Academy of Sciences, Arts, and Letters. Six fermentation tubes of lactose pep¬ tone bile, inoculated with B. coli as above • • . . . . 60%, 55%, 45%, 50%, 50%, , Average = 52% Six fermentation tubes inoculated as above, plus 1 c. c. of sterile milk.. 50%, 55%, 50%, 52%, 55%, 50% _ . Average = 52% Six fermentation tubes, inoculated as above, plus 1 c. c. of raw milk . 65%, 55%, 43%, 58%, 55%, 50% Average = 54% From these, experiments it seems fair to conclude that the addi¬ tion of a small amount of milk to culture media, will not percept¬ ibly inhibit the gas production of any B coli contained therein. F. Tests for Streptococci. Methods for determining the presence of streptococci in millr are not satisfactory. A number of laboratories depend upon the direct microscopical method. In others the milk is introduced in¬ to sugar broth, and after incubation the surface layers are exam¬ ined microscopically for long chains. If it were possible to read¬ ily and satisfactorily differentiate pyogenic streptococci from the lactic acid streptococcus, it would seem likely that a method of detection that would be useful would need the following essen¬ tials. The culture medium should be selective in the sense of favoring the growth of the streptococcus at least equally with any other form likely to be present. The resulting growth ought to be easily examined microscopically in rather large quantities. Fol¬ lowing out these ideas milk was infected with the streptococcus and then added, in 1 c. c. lots, to a tube of dextrose broth. This culture was grown for 24 hours, and then centrifuged, and the sediment examined in a stained microscopical preparation. The large amount of curd makes this method useless. It was modi¬ fied by straining out, the curd and centrifugating the cleared fluid. This was more satisfactory than the first method tried, but since it amounted practically to filtering the medium through the casein, which would be most likely to hold back the long chains, the very elements most sought, this method would be of little value. A third step was taken by growing milk in dextrose broth as above, and then taking up in a capillary pipette about 2 c. c. of the upper part of the culture, and centrifugating this and examining the sediment. In order to thrown down the sediment the milk centrifuge tubes of the Stewart-Slack method were used. This method has TRANS. WIS. ACAD. VOL. XVII PLATE XCV FIGURE 2 FROST:— MILK SUPPLIES COCKAY N E — BOSTON Frost — Bacteriological Control of Public Milk Supplies. 1325 been used only to a limited degree in this investigation but more extensively in a subsidiary series, and is believed to be a prom¬ ising procedure. G. Tests for Bacterium Welchii. 1. A New Outfit for Quantitative Work. Savage suggests a quantitative test for Bacterium Welchii (B. enteritidis spor- ogenes) in milk which is as follows: “ Quite small, narrow (4x^4 inch), sterile empty test-tubes are used in batches of ten for each estimation. 20 c. c. of milk are employed for each test, 2 c. c be¬ ing added by a sterile pipette to each tube. The ten tubes are heated for 10 minutes- at 80° C., rapidly cooled, and incubated anaerobically in specimen jars with ground- glass stoppers, just large enough to take the ten tubes, the oxygen being absorbed by the usual potash and pyrogallic acid mixture.” — Savage.* This method has been modified and improved in several details. The test-tubes used are 100 by 8 mm. Ten of them are placed in a zinc or copper box made out of sheet metal, as seen in Fig. 2, Plate XCV. This box makes it unnecessary to plug or handle the separate tubes. The box and contents are sterilized in the hot air oven. This sterilization is a matter of considerable impor¬ tance since when the tubes are used over and over, the possibility of spores being carried from one test to another must be care¬ fully guarded against. This is easily done by putting a piece of fresh cotton under the cover, and continuing the sterilization un¬ til this cotton is well browned. By means of1 a graduated 10 or 20 c. c. pipette, 2 c. c. of milk is run into each tube. The cover is replaced which is easily given a distinctive mark with a grease pencil. The tubes are now heated. To do this it is only neces¬ sary to place the tubes, box and all, in a water-bath so arranged that the water will come well toward the top of the tubes. They are then cooled and placed in jars from which the oxygen can be absorbed. Jars particularly adapted to this use are the speci¬ men jars with straight sides, with tops clamping on. In order to hold the box up from the bottom, and allow room for the pyro- gallate, a strip of zinc about % an inch wide is coiled up and laid in the bottom of the jar. The required amount of pyrogallic acid is placed in the bottom of the jar, the box with the milk * Milk and the Public Health, 1912, p. 189, The Macmillan Co. 1326 Wisconsin Academy of Sciences, Arts, and Letters . tubes is put in place, and then a paper bag is put in one side and a small tube of gelatin containing a little methylene blue, which has just been boiled until it is colorless, is put in on the other side for the purpose of determining whether or not anaerobic conditions are secured and maintained. The gelatin tube should, of course, remain free from a blue color ; i. e., the methylene blue, should remain reduced. The paper sack is made from newspaper (1x3 inches) pasted together, and is used to hold the alkali. It requires a short time for the alkali to eat through the bag during wrhich time it is possible to close and seal the jar. The outfit is incubated for 48 hours at 37° C. In examining them the box is removed from the jar, the cover taken off, and the tubes lifted out two at a time with a small pair of forceps. The following is regarded as a typical reaction : Abundant gas formation, cream layer may be forced to top, or even out of tube, otherwise tom into shreds; beneath is a floeculent or floating curd. The amount of coagulated casein is small in comparison with the amount of whey, which is colorless, clear, or slightly turbid. The reaction is strongly acid and has the odor of butyric acid. A similar change is sometimes seen in which there is lacking, however, evi¬ dence of gas and floeculent curd, and in which the curd remains at the bottom. In doubtful cases, as for example, where this last change occurs with milk very good in every other way, it would be desirable to test out the tubes by sub-cultures. For this purpose a milk fermentation tube is excellent. A new form of fermenta¬ tion tube, not previously described, useful in this connection may properly be considered here. 2. New Form of Fermentation Tube Used for Testing out Doubtful Reactions in Bacterium Welchii Determinations. This form of the fermentation tube was devised some years ago for some special problems still under way, and is especially use¬ ful for the study of anaerobes and the amount and rate of gas formation from a constant volume of the medium. Its special features are best understood by reference to the ac¬ companying figure. Fig. 10. (A) lower arm A is the essential modification of the ordinary form. This is made of such size that it will contain a measured amount of culture medium, say 10 c. c. On top of this is put an oil (white paraffin or other neutral oil) filling the closed arm B, and some in the bulb. The medium is inoculated by means of a capillary pipette. The gas, as it is Frost — Bacteriological Control of Public Milk Supplies. 1327 formed, rises through the oil and collects at C. It is possible of course, to obtain and maintain absolute anaerobic conditions in the medium situated as it is under oil. Fig. 10. New form of fermentation tube. HI. DETAILED ANALYSES OF VARIOUS GRADES OF MILK STUDIED. A. Classification of Milks. 1. Schemes Proposed. The Commission on Milk Standards appointed by the New York Milk Committee! suggested that milks should be classified into the following grades: — Class A Certified milk or its equivalent Class B Inspected milk Class C Pasteurized milk Class D Milk not suitable for drinking purposes. This is practically the same classification suggested by Melvin.* * The Department of Health of New York City! has adopted a classification somewhat more elaborate. t Public Health Reports, 1912, 27, p. 673. * Milk and Its Relation to the Public Health. Hyg. Lab. Bull. 56, 1909, p. 607. t Milk Supply of New York City, 1912. Dep’t of Health Monograph Series, 5, p. 13. 1328 Wisconsin Academy of Sciences, Arts, and Letters . Grade A. For infants and children 1. Certified 2. Guaranteed 3. Inspected 4. Selected pasteurized Grade B. For adults 1. Selected raw 2. Pasteurized Grade C. For cooking and manufacturing purposes only. A comparison of the two schemes is shown here. Report of Commission Class A Certified (or its equivalent) Class B Inspected [Not provided for] Class C Pasteurized Class B Raw New York City Board of Health Grade A 1. Certified 2. Guaranteed 3. Inspected raw 4. Selected pasteurized Grade B 1. Selected, raw 2. Pasteurized Grade 0 Raw 2. Plan Adopted. The plan adopted as most generally appli¬ cable was that proposed by the Milk Commission. B. Milks Examined. 1. List and Description of Milks. An attempt was made to secure representative grades of the various classes. Those studied are as follows: a) Certified. B5 ... B6 ... Hi ... Ho ... H, ... I .... J, ... J* ... (Grade A) 9 samples 3 samples 3 samples 3 samples 3 samples 3 samples 3 samples 3 samples . "Frost • — Bacteriological Control of Public Milk Supplies. 1329 b) Inspected. (Grade B) A5 . 5 samples Ae . 1 sample B3 . 7 samples B4 . 6 samples C3 . . 3 samples D . 3 samples G . . 7 samples c) Pasteurized. (Grade C) Holding process A2 . 6 samples B2 . 6 samples C2 . 7 samples In bottle A3 . 5 samples A4 . . . 9 samples M2 . 4 samples d) Raw Milk. (Grade D) At . 6 samples Bt . . 7 samples C4 . 8 samples E . 2 samples F4 . 3 samples F2 and 4 . 3 samples F5 . . . 4 samples K . 3 samples L . 3 samples M . 4 samples C. Scope op the Analyses. Most of the analyses were made during the months of January, February. March, and April. The results represent winter con¬ ditions. These, it seems fair to assume, are the most favorable for the producers as well as the consumers of milk. On practi¬ cally all samples the following determinations were made: In all cases: 1. Total number of bacteria growing at 21° C. 2. Gas production in lactose media, either lactose peptone bile, a special medium (neutral red milk broth), or Endo ’s medium. 3. Bacterium Welchii, by a quantitative method modified from Savage. 4. Spores or forms resisting 80° C. for 10 minutes. In part of the samples : 5. Streptococci were examined for. 6. The character of the curd at 37° C. studied. 7. The time required to reduce methylene blue determined. 8. The number of bacteria determined directly by the Stew¬ art-Slack method. 1330 Wisconsin Academy of Sciences, Arts, and Letters. The method used for collection, as well as the technique of the various steps, has already been given. The results obtained are shown in the following Tables, I.-IV. inclusive. Table I.— CERTIFIED MILKS (Class A). j Frost — Bacteriological Control of Public Milk Supplies. 1331 mo* ^ > o ooo oo»-hoo ooooo ooooo ooooo o o | s o ooooo ooooo o ^ . 0) go rO O OOO^CV.0 ooooo OOOOO I^OOOO o ooo ooooo •OOOO OOOOO OOOOiO o .©OOOOO OlOOOO OONCM WOtt'L^O O 5 iLOntGOO CO CM CM CM CM 1 ^ ^ HMWCO«D MOO^hO ^ C l— 2I2S222 222hS2h2S C^ CM CM CM CM CM OO 30 C CM CM CO 50 CO CO CO CO CO CO CO CO CO CO CO 1>L I'l 1>L !>. li. I'l* t-L l oos>-i>- 1"» ► OOOO i— I CM CO CO CM CO ^ lO O OOOJOHW CO > CD O O O O O OO HHHHH »H pH CJ CVJ CM 1HHM CM CM CM CM CM CO CO CO SO CO CO CO CO CO CO CO MCQjQfflpq ctflxK^ *"* Table II.— INSPECTED MILKS (Class B). 1332 Wisconsin Academy of Sciences , Arts , and Letters . Table III. —PASTEURIZED MILK (Class C). Frost — Bacteriological Control of Public Milk Supplies. 1333 OOOO© rHCM CMC 1CMOO coo© ^OOWHO OOOO WOIOOJW CM«^ +3 a CD- in* & < \ 2 vClOOXOOO 0000 OOOO OOOO OOOOO MCCXCMX OJXLOOO i-H 00^0 OOOOO OOOOO O Lft O ITD LC3 OOOO ooouo 10 go 1^- i*h OWOh*N " CM LT? 'tOl ^■^OOCO CO CO Cri CO CO cococococo cocococo HHHHH hhhh I I I I I lift CO OO rH ->H HHHMM HHHH COCOCOCOCO ag ooxmoo H 5 COOOJW HlflOH - - O O o -H CO »0 5.0 CO CO HHMCJM CM CM CM CM Ol^OOOOQ CNJ Cl CM M (M CMMCM CM CM CM CM fqaqoQO Table IV.— RAW MILKS (Class D). Frost — Bacteriological Control of Public Milk Supplies. 1335 © o o 3,000 1,900 14,000 6,400 go CO m • O O 0 15,750 5,000 48, 900 2,700 1,800 0 600 0 400 2,300 27,000 13,400 4,750 0 5,000 Negative 2/10 Negative 3/10 Present Absent 1/10? Absent 7/10 Absent Absent Absent 10/10? 10/10 8/10 1/10 0/10 1/10 ( 0/0 3/10 OOOOO HOOiflW ©■* . S3 !g| ;g| s ^ 0 © ^ ^ ^ ^ ® © © © fafa£=< fa © *2- - O- - © © © > > > © © © O2CC0Q *3 o ©: Fh © © © fafacn 3 _ O £§ g| — 1 eo © < fO ifS [o 3 P OOOOO OO § § o C ^ * o’S 6-2 *8 P OOOOO ifJo © 160 CJJOiO^CO o^^?ooo OOHtMO O CM CO CO CO Hlfl Ift >0000 OOOOO >0000 OOOOO JOifiOO 0000m )6no irl wod'iN 5 in o o ^H^eoN CM-^S>»© OOOOO O O' o o o 00000 o© © in© OCMGOCMlD WH05H eviea HNMM^ OOOOO CfiHHHH I I I I I I I I I I I I I I I HHHW£^ DJCJNWW CMCMCMCMCa OOOO^ W CM W Ci CM CM CM CM CM CM CM CM CO CO CO . Pi oB Z «a ?h *-< ■th ,-h t-i .-I eo eo eo ■>-( ea 1-1 -h HuieoeiH — fafafafafa fa^;T a Oj 3 cn tn co O,-,,-, O O §> g g © ® sggsa o O O CO lO O ooooo ^ o oco ro^oo I I I I I CO co CO CO CO CVi CM C^i CO HHH cococo^^ CM lO »o <© CMCMCMCMCM CMCMCM OUOWCQ WWj Frost — Bacteriological Control of Public Milk Supplies. 1337 D. General Consideration of Results Obtained. When the results obtained from each grade and source are grouped and studied, certain interesting, and, it is believed, very important points are brought to light, so that it seems worth while to consider the points raised somewhat in detail. 1. Raw Milks. The analyses of raio milks are grouped and shown in Table IV. It is to be noted here that the first three milks, A-, B.n and Cx, which are to be pasteurized before market¬ ing, are much similar. The bacterial count is high, about 2,000,000. B. coli, or its allies, are practically always present in quantities of 100 per c. c. Usually there are 1000 per c. c. and occasionally, at least, there are 10,000 per c. c. Spores of Bact. Welchii are generally present ; frequently there is one such spore for each 2 c. c. of the milk, but on the average there are 4.2 to each 20 c. c. of the milk. Spores of organisms growing under aero¬ bic conditions are also present in considerable numbers. K and L. were raw milks to be sold as produced and the samples studied were from stores. They were apparently somewhat better milks. The high bacteria] count comes, no doubt, from recent multipli¬ cation since, aside from the rather high Bact. Welchii content, there is no evidence that these milks are badly contaminated. The milks marked F1? F2, and F3 are from a small town (15,000) and are very much cleaner than the city milks. It is worthy of special note that Fx and F2 came directly from the producer, while Fa is a similar and sometimes the same milk which has gone through the bottling works with considerable detriment to the quality of the milk. E is a relatively small producer who is apparently producing quite a good quality of milk. 2. Pasteurized Milks. The pasteurized milks (Table III.) are of two classes, those pasteurized in bulk and from milk produced without any special care, and those from milks belonging to the inspected grade and pasteurized in bottles. The first class, A2, B2 and C2, all contain more bacteria than would be allowed by the Commission’s standard. Practically all of the samples con¬ tain B. coli in 1 c. c. lots, and some even show 100 per c. c. The number of resistant forms is high, showing, I believe, inefficient sterilization and cleanliness of the pasteurizing and bottling ap¬ paratus and utensils. The high content of Bact. Welchii is, of course, to be attributed to the contaminated condition of the raw milk. 1338 Wisconsin Academy of Sciences, Arts, and Letters. The milks pasteurized in the bottle are very much, better than those pasteurized in bulk. The count is low, especially in M2, since A3 and A4 were taken from the plant and usually soon after pasteurization, while M« was delivered in the early morning and remained on a doorstep for some hours before it was taken to the laboratory. B. coli was practically never found in 1 c. c. lots. The number of Bact. Welchii is low as well as the number of resistant aerobic forms. 3. Inspected Milks. The inspected milks (Table II.) are most of them of only a fair grade. Certain ones, however, are uni¬ formly excellent, such as B3 and G. The latter belongs practi¬ cally in the certified class. B. coli is usually present in 1 cc. amounts, except in the very best of them. Bact. Welchii is fre¬ quently present and occasionally in large numbers. The best of these milks have a very small number of resistant forms or spores, but the poorer grades frequently have large numbers. 4. Certified Milks. The certified milks (Table I.) have usu¬ ally been found to be excellent. E. Discussion of the Various Factors Studied and Their Sig¬ nificance. 1. Total Number of Bacteria. (Table V.) a) Law Milks — Grade D. The raw milks studied belong to two different classes, — those that are to be sold raw, and those that are to be pasteurized in bulk before being put on the market. The milks of the latter class are A^Bi and C x. It will be seen from Table V.that of these, even in midwinter, very few samples came within the prescribed lim¬ it. The average of six samples of A3 was 1,741,400, of seven samples for B1 was 1,786,000, of eight samples for Cx was 2,211,600, which is from 70% to 100% above the standard of 1,000,000 set by the Commission. The other class, namely, those to be sold in a raw condition, are represented by E, K, and L, which give the following averages respectively: 180,000, 6,916,500 and 3,970,000 bacteria per c. c. Milks Fly F2. Fs, and F.4 are from a small town of about 15,000 inhabitants, some sixty miles from Boston. So far as can be judged by the total number of bacteria, it is seen that these milks are considerably better than those of a large city. One Table V._ TOTAL NUMBER OP BACTERIA PER C.C. IN VARIOUS GRADES OF MILK. Frost — Bacteriological Control of Public Milk Supplies. 1339 °KS . IIP £ rt O ^ “ 5 o PI 42 a P i O c3 iJ t o s* a o3 Or^S Hgo P-® I o gS c3 ra m m in m >n fq?Qffipqfflcqpq ooo o o o o o m c n v> vi H ^ 'H o -n re NWO) OirHH rHCOCO ■73 73 C/3 S-l ?H 00 CO o O *-• CM rH CO CO CM CM! CM EffiK OOOOO I o O O O O O I o °.0.°.ci0. Hi m o cm m m i a i ^ O CO CM CM j o o in o o o c 0>- - - - fa CD . oo oooo o o o o o o oomooo 7)^ ^ ^ ^ v. I r-\ r— 1 CM CM — ' O H Ot-O ^ngoct.oc m >— i Ti r— i CM CM in in in in m

XXX 73 73 -.0 W H P XXX WWW «H S- ■-< xxx . o ££ ffi . 3 n* Hii-j'-i > <1 oo o ooo OiTiO oo-' coco co rv ^ r fecvL' CO CO CO OQO T-1 T-s CO CQ £M (M QQQ t OJNiOiOONCO rfi in in i n n in in xxxx SsXX -rft ■ ci d d : t -J< d d CSOOOOOO ^ w^oo w CO CO CO CO (TO ooooooooo LOiOOniCOOOO t— ci iO O d iri uo o kO> fa dfa d«cid o oo o o o o o irt I ■— < U5«3NH I 03 73 73 73 73 Ih Sh Sh Sh XXXX Cl Cl Cl Cl Cl d Cl Cl 88 o o o o o o ooo co o- Cl Cl 0H XI ©; -H X*' dfa HHH ^ 888 lOOO ©H . &H* - fa © NN># ►> fafafa 5 ) o o >oo >oo ) o oo .ooo JOOO > o o o 3000 liflO'H OOlflO 73 71 73 73 Sh Sh Sh Sh xxxx dddd dddd O 73 71 cn b ©XX fadd Frost — Bacteriological Control of Public Milk Supplies. 1341 point of interest appears, and that is, that milks prepared for immediate sale by the producer, even in a small place, are fre¬ quently, if not usually, better than those worked over by a pas¬ teurizing or bottling plant. Compare the bacterial content of F1 with 191,000 per e. c. and F2 with 70,500 per c. c. contrasted with Fs with 573,750 bacteria per c. c. b) Pasteurized Milk — Class C. The Commission states that pasteurized milks should not con¬ tain over 50,000 bacteria per c. c. The analyses reported here were of several kinds of pasteurized milk, and these should be considered separately. We have first of all milks pasteurized in bulk in which a holding device was used. Others were pasteurized in the bottle. Milks A2, B2, and C., represent those pasteurized in bulk. The analyses showed the following averages : — 63,000, 126,000, and 302,800 bacteria per c. c. In practically all these cases the milks were brought di¬ rectly from the machine to the laboratory and were therefore 24 hours fresher than samples taken from the bottles of milk deliv¬ ered to the consumers. It seems fair to assume that the condi¬ tions under which these milks were received were better than the conditions of the same milk would be when delivered to the con¬ sumer. It is apparent that the bacterial content found is far above that prescribed as the limit by the Commission, and this at a time of year when it is easily possible to turn out the best prod¬ uct. If the 50,000 limit had been enforced at the time these experiments were made, less than one-third, or, precisely, only six out of twenty would have been within the limit. Most of them were considerably higher, several, two, three and four times too high, and one sample seventeen times above the prescribed limit. The reason for this high count is usually, if not always, to be laid at the door of the pasteurizing concern because of improperly sterilized apparatus with which the milk comes in contact before it reaches the final container, a too low pasteurizing temperature, or a too highly contaminated raw milk. Milk pasteurized in the bottle or final container, was examined from three plants, A3, A4, and M?. These milks are very differ¬ ent from those pasteurized in bulk. The low count, however, is not of necessity due to the higher efficiency of this method of pas¬ teurization, because this method of pasteurization is used only 1342 Wisconsin Academy of Sciences, Arts, and Letters . on the better grades of milk. The milks pasteurized by this method all belong, theoretically, to the inspected class, and are much better milks than those used for pasteurization in hulk. Compare counts of A5 Ae, and M1? in this connection. c) Inspected Milks — Class B. Inspected milks should contain less than 100,000 bacteria per c. e. according to the Milk Commission. Eight different milks of this grade have been examined. A5 and A6 run high ; both of these, however, are afterwards pasteur¬ ized in the bottle. See As and A4, B3, D, G, and M were very good milks and were always well under the above limit. B4 and C3 were not nearly as good, but satisfactory from this standpoint in practically one-half of the samples examined. d) C ertified Milks — Class A. The certified milks have a limit of 10,000 fixed by contract, and it is quite certain that any excessive count would be only tem¬ porary. Table V. gives the results obtained. e ) General C onsiderations. The technique used for determining the bacterial content was the Committee’s, except that the temperature of incubation was that of the room (21° C.) instead of 37° C., as recommended by them. My object in making this change is a feeling gained from a rather long experience that the number of bacteria grow¬ ing into colonies at this lower temperature much more nearly corresponds to the total number present than when the incuba¬ tion is at the body temperature. What I wanted in this particu¬ lar study was to get the total number of bacteria present, as nearly as possible, since I hoped to detect and estimate quanti¬ tatively the fecal forms by other methods. Hence the numbers representing the total number of bacteria per c. c. is somewhat higher than that likely to be obtained by one who follows exactly the standard methods. In this connection a phenomenon of much importance was ob¬ served which needs consideration here. It relates to the rate of growth of colonies of bacteria on plate cultures made from milks of varying degrees of purity. This is especially noticeable when the rate at which colonies develop from raw milks on agar plates is compared with the rate at which colonies develop on agar plates when seeded with pasteurized or certified milks. Frost — Bacteriological Control of Public Milk Supplies. 1343 It has no doubt been recognized before that the colonies on plates from highly contaminated milks appear before those on plates from the better grades of milk, but no cognizance of it seems to have been taken of the possibility of using this as a means of judging the quality of a milk. The following data illustrate the facts in the case : Table VI.— RATE OF GROWTH OF MILK COLONIES ON AGAR AT 21° C. Number and character of Upper figures give number of bacteria per c.c. milk. Lower figures give percentage of total bacteria per c.c. 1st day 2nd day 4th day 5th day 6th day 143 Raw milk. ............... . 4,000 89,000 113,000 120,000 3*# 74% 94% 100% 144 Raw milk . 175,000 189,000 204,000 210,000 83% 90% 97% 100% 146 Pasteurized... . 0 0 14,000 18,000 35,000 0% 0 % 40% 51% 100% 147 Inspected (very good 1 milk) . . . . . 0 10,000 1 21,000 24,000 32,000 0% 31% | 65% 75% 100% If these figures are plotted the following graph is obtained. Fig. 11. A similar set is shown in a graphical form in Fig. 12. Since it would be too much of a burden to make daily counts over the greater part of a week, it seemed worth while to deter¬ mine whether two counts would not be sufficient. Forty-eight hours seems to be the crucial time, and the following graph, con¬ structed on counts made at the end of 48 hours and four days, gives the necessary data. (See Fig. 12.) From these results presented in Table YI. and graphs, Figs. 11 and 12, it appears that it is possible to predicate the general characteristics of a milk by determining the rate of growth of its colonies on agar plates at 21° C. This phenomenon can be well brought out then by the following procedure : Agar plates are inoculated with a suitable dilution of a milk of unknown character and incubated at room temperature, about 21° C. They should be counted daily, or at least after two and five days. The figures representing the percentage of colonies found on the second and ether intermediate clays are then de¬ termined by considering the fifth day as giving the total. In this wav it is ascertained whether or not the percentage on the second or other intermediate days is greater or less than 50 %. BACTERIA S BACTERIA 1344 Wisconsin Academy of Sciences, Arts, and Letters. DAYS % 11. Graph of rate of development of colonies in poor milk compared with good. Pasteurized milk heated at 145° F. for 30 min. Fig. 12. Same as Fig. 11 except temperature chart is added. Frost — Bacteriological Control of Public Milk Supplies. 1345 The percentages obtained are plotted as ordinates, and the days as abscissae. In this way it will be found that the curves formed will fall below the diagonal, formed by drawing a line from 0 to 100%, on the last day in the case of pasteurized or certified milks, and that the curve will rise well above this diagonal in the case of raw or highly contaminated milks. It has not been possible so far to obtain similar results using a 37° C. temperature. 2. Gas Production in Lactose Media. (Table VII.) The Milk Commission, # states * 4 pasteurized milk should not contain colon bacilli in 1 c. c. as determined by cultural methods.” In some cities this criterion is being applied, as for example, in Wash¬ ington, I). C. This organism has served a most useful purpose in water analysis, and there seems every reason to believe that tests for it may be of great service in milk work. Clean milk, as it exists in the udder of the cow, does not contain B. coli or other bacteria capable of fermenting lactose with gas production. Ayres and Johnsonf find anaerobic bacteria in pasteurized milk which produce gas and which might be mistaken for B. coli in preliminary tests. If they are found in the milk after it is drawn, they must come from outside sources, and these must be the manure, the persons handling the milk, or the utensils with which the milk comes in contact. The cleanliness: of a milk could, in reality, be measured by the relative abundance of bacteria capable of producing gas in a lactose medium, or in other words, by the relative abundance of B. coli and its allies. As to the cultural methods it seems likely that those employed for water will be found1 equally satisfactory for milk. Lactose peptone bile in fermentation tubes has been uniformly used! in all analyses reported here. In a considerable number of in¬ stances a special medium neutral red milk broth, has also been used. An attempt too has been made to use Endo’s medium. The methods or preparation of these media has already been considered, and the results obtained by their use are alone to be discussed here. Some attempt was made to identify the organisms producing gas in the lactose media as B. coli by isolating in pure culture in lactose litmus agar, and then running through the fermentation * Loc. cit. t U. S. Dep’t of Agr. Bu. An. Ind., Bull. 161, 1913, p. 60. 1346 Wisconsin Academy of Sciences, Arts, and Letters. tube, determining the amount and the formula of the gas pro¬ duced, by the action on milk and gelatin, and the production of indol. This work was not carried far, however, because of the time required and the fact that, to a considerable extent, it seemed unnecessary and of less value than other phases of the work. This supposition is based on the assumption that bacteria producing gas in lactose media are foreign to the best milk, and especially unnecessary in pasteurized milk. In the poorer grades, belonging to the class “Raw milks,” Alt Bx and Cx (referring to Table VII.) , gas was produced in 91% of the samples in 0.01 of a c. c. In the remaining cases the bacterial count was very low and such did not properly belong to this class. In 75% of the samples gas was produced in 0.001 of a c. c. Two of the non-fermenting samples, in this case also, were very low in bacteria. Hence it would seem fair to con¬ clude that milks of the grade examined above ; i. e., milks which are delivered to large pasteurizing plants, are likely to contain these lactose fermenters in 0.01 of a c. c., and in the majority of instances contain such organisms in 0.001 of a c.c. or, in other words, such milks may contain hundreds o*r even thousands of such organisms per c. c. Milk belonging to this class, but of a better grade, as repre¬ sented by E, F0 2, and 8, contain a fewer number of these bac¬ teria. K and L are more like the first firoup, namely, Ax, Bt and C1? but are sold raw. Judged from the standpoint of the number of gas bacteria, however, they are better milks. If we turn now to the better grades of raw milks we see that the gas-producing bacteria, in inspected milks, are less numerous, occurring in 1 c. c. portions in 100% of the samples in A5, A6, and B4, and in 27 % of the cases in 0.01 of a c. c. portion. In the remaining groups of Table VII. the total bacterial con¬ tent indicates them to be of better quality. B», C3, D, G, and Mx have a much lower percentage of gas-producing bacteria. Turning again to the certified milks we see that colon-like bacilli are rarely present in 1 c. c. lots, and are never present in a fraction of a c. c. It appears, then, that the raw milk of Boston contains large numbers of bacteria capable of producing gas in lactose media, i. e., bacteria belonging to the colon group, in considerable num¬ bers in ordinary raw milk (Grade D), fewer numbers in the in- TABLE VII. GAS FORMATION IN LACTOSE PEPTONE BILE AND COLI-L1KE ORGANISMS ON ENDO’S MEDIUM. Frost — Bacteriological Control of Public Milk Supplies. 1347 Coli-lilce colonies on Endo- medium. Sterile 0 0 0 1 1 1 l Ml 1 1 i i I Q fa o o 1 o°° | o | | I 0% 0^0 I oo 0% oo o ^- + *R GO CO ++° *R CO co 1 -J-°° cn CO 0 i-H 1 1 •aoanog llO lf3 U3 U3 UOU3 Id OOO '■H'-Hi-H NMN «iXja5M0£Q^ pqxffl HK- SSffl i-s Inspected. Coli-like colonies on Endo medium. Num’r’us A few ! Several Few Several Doubtful ! Several Few Several Several Gas in lact. pep. bile. 1/1000 0+0.0 s - CM 1 i II f 111111° o 11111° O 1/100 J _ j_000 40% , 1 -b ooooo , o o 1 °°° 1 1 *R o d d +-H-I 1 ^ 1 O 1 CO 1 1 II , ++00+0+ 1 U5 + 4-+P+|+ i •aoanog LO LQ LQ IO U3 O SO oo CO CO CO CO co -^1 ^ ^ •'3* rf <3 cq ca oa aa ca a pq cqcqccccccca . . .r Pasteurized. Coli-like colonies on Endo medium. 0 Several I Several Several Several Several Several Num’r’us Num’r’us Several Num’r’us Num’r’us Num’r’us Num’r’us i ' Gas in lact. pep. bile. 1/100 1 oooooo 1 *| O 1 1 O | oooo 1 II I+I-H++-H- 100% 1 1/10 Mini 1 1 ° 1 1 1+ ; SR o lO j 1 ! 1 ++-H- 1 100% 1 1 c. c. +OOO++ 50% ! r++++ i. 13 ++++++++ 100% 1 •ao.mog CM CM CM CM CM CN) MMSMNCMCM CM CM CM CM CM CM CM CM i> j. j lj Frost— Bacteriological Control of Public Milk Supplies. 1349 spec ted grade (B). and that the certified milks are practically free from such organisms in 1 e. c. lots. The pasteurized milks, A2, B2 and C2 (Table VII.), produced gas, when 1 c. c. of the milk was added to the lactose medium, in 83% of the cases, and in 25% of the cases in 0.01 c. c. portions In certain supplies, as C2, it is unfortunate that greater dilutions were not planted, since it is quite likely that there might have been quite as many lactose fermenters in the pasteurized as in the raw milk. (C-l). In milks pasteurized in the bottle, A3, A4, M2, these bacteria are practically absent in 1 c. c. portions. 3. The Value of Endows Medium in Milk Work. Endo plates were made in a majority of the analyses considered in this investigation. The methods employed have already been dis¬ cussed and it is necessary here to consider the findings only. It was difficult at times to correlate these findings with the data obtained from the fermentation tubes. The greatest difficulty and indefiniteness come in the better grades of milk, where it was necessary to introduce 1 c. c. of the milk into a Petri dish In these cases the opacity produced by the milk made the result¬ ing growth less characteristic. In recording results no attempt was made to give actual counts, because of the frequent appear¬ ance of red colonies (not B. coli) in certain of the samples. The terms “few” “several,” and “numerous,” have been used instead. (See Tables I. -IV. and VII.) It will be noticed that in the raw milk (Table VII.), where there are many gas pro¬ ducers, there are always several or numerous coli-like colonies on the Endo plates, as for example, in A1? B:l, andCV In those samples where fermentation occurs in large quantities of the milk (1 c. c.) only, as F4, 2, and 3, there are also few coli-like colonies on the Endo plates. In the inspected milks (Table VII.) there is a rather close correspondence between the abund¬ ance of gas -producers in lactose peptone bile, and the red colon¬ ies on the Endo medium. In the certified milks the tests were the same as those obtained by the use of lactose peptone bile or in the fermentation- tube method. Table VI. of pasteurized milks also shows that similar results were obtained by both methods1. In milks pasteurized in bulk, A.,, B2, and 02, coli-like organisms appear in each 1350 Wisconsin Academy of Sciences , Arts , and Letters. method. In milks pasteurized in the bottle, A3 and A4, all the plates made remained sterile, which was in correspondence with the fermentation- tube tests. It seems that there is quite a close resemblance between the re¬ sults obtained in test for B. coli by the Endo plate method, and the lactose petoone bile. Ayres and Johnson^ find that there are anaerobic bacteria in milk, which resists pasteurization that give gas in the bile fermentation tests which might be confused with B. coli, and suggest that where B. coli tests are used to con¬ trol pasteurization that complete cultural determinations be made of suspected colon forms. The simultaneous use of lactose bile and Endo ’s medium would be strong evidence of B. coli in case a positive result was ob¬ tained in each, and would enable one to arrive at a definite opinion considerably sooner than would be possible if it were necessary to test out all gas formers found in lactose bile. The particular difficulties come in the use of this medium due to the troublesomeness of its preparation, and difficulty of using relatively large amounts of milk (1 c. c.). 4. Bact. Welchii. Savagef has suggested that Bact. Welchii ( B . enieritidis sporogenes ) is of importance in that it is a valu¬ able means of measuring the manurial pollution of milk, since the spores of this organism are prevalent in manure and in dust, while they are absent from milk collected under conditions of great cleanliness. Accepting this as a statement of fact, it seemed that this organism might be a measure not only of the cleanliness of raw milks, but it may also be used in the case of pasteurized milks to indicate the original character of the milk before being heated. In other words, it seemed as if we might have in this organism a means of judging the original character of the raw milk by examining the pasteurized milk. Savage! has also suggested a quantitative method of estimation. A modifi¬ cation of Savage’s outfit has been described above (see p. 1320), and was used throughout this investigation. The method used of recording results is that suggested by Savage, and is as follows : Twenty c. c. of the milk, having been * Ayers and Johnson: A Study of the Bacteria Which Survive Pas¬ teurization”. Gov’t. Printing Office, Wash., 1913, p. 60. f Savage: Milk and the Public Health. The Macmillan Co., 1912. t Ibid., p. 189. Frost-— Bacteriological Control of Public Milk Supplies . 1351 Table YIIL BACTERIUM WELC HII IN VARIOUS GRADES OF MILK. Raw. Pasteurized. Inspected. Certified. © © © 2 Bact. © u Bact o M Bact. g Bact. Welchii. 3 O Welchii. 3 O Welchii. 3 O Welchii, m m m CO i\ 0 2 0 Ac 0 B. 0 a\ A 0 Ao 0 A5 1 bI 0 3 A2 A$ 0 A 1 b| 0 0 1 Ac 0 b| 0 a} 10 Ao 0 A§ 8 ? Br 0 Ao 10 A? 2 b| B1 0 2.5 a| 1 0 2 B1 b} r| t 1.8 0 If ? 1 0 0 Bo 0 B« 0 b} 5 0 Bo 0 b! 0 bi Bi Bi 7 6 Bo 0 B« 0 0 4 Bo 0 b! 0 10 Bo 6 Bo Be 10 U 2 0 0 3.1 3 2 ^3 Hi H{ H1 ft a 10 Co 4 " L7 u 0 §i 8 c« a 0 3 8 B, 3 & c{ cj -C1 1 3 10 C2 Co cl 2 8 8 B4 I 4 0 10 0 Ho 1 10 Co 6 B4 0 Ho 0 10 C2 6 B4 — H2 0 7 6.2 3.4 4 E 0 A3 0 Co 0 I 0 E 0 A« Ag 0 0 1 Co ci 0 0 I I 0 0 0 F1 0 A3 2 0 0 0 0.6 D TV 3 2 1 f-1 0 6 0 0 if 0 o U D T1 0 0 h 0 i* A4 1 2 0 2 0 0 G 0 Jo 0 a! 0 G 0 Jo 0 F« 0 a} 3 G 0 j{ 0 f! 7 Al G 0 L f3 1 A4 1 G 1 0 ¥% 1 G 0 0 0.7 G 0 2.2 Mo ft 11 K i Mo Mo M2 0 V • Irl K i 2 K 0 2 K 2 1.2 1 L 7 L 2 L 10 ■ 6.3 1352 Wisconsin Academy of Sciences , Arts, and Letters. equally divided among the ten small test-tubes, is put under an¬ aerobic conditions, and incubated for 48 hours. The tubes show¬ ing the characteristic reaction are counted. If all of the tubes are positive, the result is recorded as 10. All gradations between 0 and 10 will be encountered. Turning now to the results obtained in this investigation (see Table VIII,) the raw milks used for pasteurization in the bulk nearly always, contained the organism under discussion, the number ranging from 0 to 10. The average for the three sup¬ plies were 2.5, 3.1, and 7, respectively. Raw milks produced for direct consumption were much less frequently and less heavily infected. The milks supplied to a small town, Fx and F2, proved to be free from this germ, but F3, which is a bottling concern is infected in three out of five samples. Milks K and L, which had a high count, likewise have Bact. Welchii present. Inspected milks, are especially free, but occasionally, and es¬ pecially the poorer grades, do contain these germs. The num¬ ber varies from 1.7 to 3.4. The better grades of this class, and all of the certified milks are free from Bact. Welchii. In pasteurized milks the germ under discussion appears in practically the same frequency with which it occurs in the raw milk which has been treated. A2, B2, C2, show averages of 2, 3 and 6.2, while 2.5, 3.1 and 7 are the averages of the raw milks (Ax, Bx and Cx). The milks pasteurized in the bottle (A3, and A4,) have averages of 0.6 and 0.7, while these same milks in the raw condition (A5) contain 1.8. There seems to be quite a striking correspondence between the distribution of Bact. Welchii and the lactose fermenters (coli-ae- rogenes group.) This organism is rarely found, and apparently never in any quantity in raw milks unless the coli-like organisms are also present in considerable quantities. Positive tests for both of these organisms is quite conclusive proof of manurial con¬ tamination. If only a single test could be made on a milk a posi¬ tive reaction of this organism would indicate more serious con¬ tamination than the presence of B. coli. In pasteurized milk this organism may be present in consider¬ able quantity and B. coli may be absent. This would mean that the original milk was badly contaminated, but that the pasteuriz¬ ing process had been well carried out. It seems then that this test is capable of being used to a very Frost- — Bacteriological Control of Public Milk Supplies. 1353 good purpose in the control of pasteurization, and merits further study. This work seems to confirm the good opinion which Savage expresses of it. 5. Spores or Heat-Resistant Fo)rms. The various grades of milk probably contain different proportions of spores. One would Suppose that the best grades would contain very few spores — that the more careless the operation of milking and handling, the greater the number of spores it would contain. These would come largely from dust and manure. Providing all milk was immediately cooled and kept cool, the care in milking could be quite accurately judged by the proportion of spores present. If milk stands for some time, and especially at temperatures at which bacteria, can grow rapidly, spores originally present would germinate and others would probably be formed so that no general law could be formulated, and their estimation would be of little value. Whatever their genesis, however, spores of bac¬ teria in milk would not be found in any quantity in the very good milks properly kept. While mjlks with a high initial contamina¬ tion, or milks which are not properly kept, would contain very many spores. Furthermore, it is quite evident that if milks used for pasteuri¬ zation contain a large number of spores it would be impossible to produce a pasteurized product from such milks with a low bac¬ terial content. The efficiency of pasteurization is now determined by ascer¬ taining the percentage of original bacteria which are killed dur¬ ing the process. This method is, however, unsatisfactory, since it places a premium on highly contaminated raw milks, as it is easier to get a higher percentage of efficiency with them] than with good milks. Bearing on this point, the following quotation from Ayres and Johnson* is made: “ Percentage bacterial reduction is of no value in determining the efficiency of the process of pasteurization. As a general rule when the bacterial content of raw milk is high there will be a high percentage reduction. When the bacterial content is low, then the percentage reduction is of¬ ten low. The percentage reduction may be 99.9 per cent and * Ayers and Johnson: A Study of the Bacteria Which Survive Pas¬ teurization. Gov’t. Printing Office, Wash., p. 58. 1354 Wisconsin Academy of Sciences , Arts, and Letters. TABLE IX.— SPORES OR RESISTANT FORMS IN VARIOUS GRADES OF MILK. Raw. Source Spores 3,000 1,900 14,000 6,000 5,000 48,900 13,100 B B B B B B B 1 1 1 1 1 1 1 13,400 4,750 0 1,600 3,000 3,300 4,340 2,700 1,800 2,300 27,000 5,000 26,300 21,400 27,700 U,270 E 27,000 E 2,500 F2 F2 F, f: f; F K K K K 14,750 1,000 100 550 15,750 600 400 5,600 6,500 1,050 100 350 2.000 2,25@ 1,500 1,400 200 1,337 200 6,200 3,200 Pasteurized. Source Spores A2 2,500 a| 4,300 A9 11,200 a| 4,800 A2 16,000 A2 33,000 11,700 B„ Bn 4,300 Bo 21,000 bI 21,000 B2 B2 10, 100 64,000 20,000 c2 4,000 cl 2,860 Co 4.800 Co 10,000 cl 49,000 c\ 126,000 cl 47,200 C2 78,000 40, 200 Aq 500 Aq 2,730 Aq 15, 120 Aq 4,000 A3 15, 350 7,540 A4 2,500 £4 2,100 A4 9,800 A4 4,800 A4 16,000 A4 10, 800 A4 9,100 A4 3,000 13,000 7,900 Mo 1,300 m; 800 m| 2,600 m| 2,000 1.675 Inspected, Certified. Source Spores Source Spores ' At 3.080 Br A5 K 23.400 b| B? 0 0 A5 A5 A5 36,000 2, 400 B5 B5 Bd 100 0 50 50 0 30 17,800 1,600 11,000 16, 200 t>5 R5 B5 R5 B6 So B6 A6 40,000 10,700 B3 B3 B3 0 5,250 600 800 1,200 2,700 300 H1 H1 H1 1,200 ! 100 1,400 Bcq 960 0533 - 3 H2 Hg H2 27,1)00 50 200 1,550 % I BJ Bt 47,000 26.500 7.000 24.500 8,400 8,500 920 20,600 o3 28,600 7,000 39, 000 24,800 I I I 0 150 300 D 400 800 250 u D 150 ~ ~480 j; 0 100 300 G 100 96 u G G G G G 130 120 0 400 j2 j? 0 250 100 2 144 115 L L Frost-Bacteriological Control of Public Milk Supplies. 1355 yet the pasteurized milk may show a count of 100,000 per cubic centimeter. When pasteurized milk contains only 10,000 bac¬ teria per cubic centimeter the percentage reduction may only have been 95 per cent. It is often impossible to obtain a 99 per cent, reduction when, a good quality of milk is pasteurized, therefore, regulations which require a 99 per cent, re¬ duction of bacteria during pasteurization are of no value.’ * Following these theoretical considerations it will be of interest to notice the results which were obtained in this study. Before doing so, however, it will be desirable to explain that while the forms under discussion are headed spores, that some and perhaps at times many of the forms thus grouped are not spore-forming. A better term than “spores”, to use in this connection, would be “heat-resisting forms.” Occasional attempts to determine the presence of spores in cultures from plates obtained directly from the milk have showed that some ten of the twelve or more forms examined were, however, spore-bearing. At first it was considered necessary only to heat a few c. c. of the milk in test tubes to 80° C. for 10 minutes. Lest, however, a scum! should be formed, which Theobald Smith, and Russell and Hastings, and others have shorn) will protect the contained bacteria from the usual effects of the heat, dilutions of the milk, 1-100, were used. One cc. of this heated dilution was then plated in duplicate and allowed to grow from 6 to 8 days at room temperature. This long period of incubation having been found necessary. Turning now to Table IX. it is seen that the raw material milks contain a considerable number of heat-resisting forms. In a general way the higher the bacterial content the higher the aver¬ age spore count, and vice versa. If there is a low bacterial count comparatively few highly resistant forms will be formed. There are. however, some glaring exceptions for which there is no data to furnish an explanation. The inspected milks have a comparatively large number of heat-resisting forms, larger even on the average than the raw market milks, the only explanation of which seems to be that these milks have in all probability been kept cooler, and that the figures obtained represent the original spore content more nearly than those of the market milk do, where there has presumably been more opportunity for the spores to germinate. The certified milks invariably have a very low spore content. 1356 Wisconsin Academy of Sciences , Arts, and Letters. Turning now to the pasteurized milks, it will be noted that they all have a higher spore content than any of the raw milks. They have, in other words, not only the resistant forms of the original milk, but in addition the forms that they have picked up on the way through the plant. The less perfect the sterilization process, the more of these resistant forms there are likely to be. The estimation of spores would apparently give data which would indicate two things, namely, that there are in all milks a certain number of spores, or high heat-resistant forms, which serve as the lower limit of purification by pasteurization, as a goal towards which the dealer must strive, but which he may never hope to reach with the prevailing low temperature, and quite likely it is best that he should not. Secondly, they may be a good indication of the sterility and cleanliness of the plant. It seems quite possible that the bacterial content of commercially pasteurized milks may be raised a considerable amount by the presence of large numbers of these heat-resistant forms in the poorly sterilized tanks, pipes, and other utensils of the plant. 6. The Character of the Curd at 37° C. During the course of this investigation my attention was called to the work of Klein and Campbell* on, “The Use of the Fermentation Test in Dairy Inspection.” Following the work of Walter, Peter and others, they suggest a classification of curds which may be briefly summarized thus: 1. Jelly-like curd. Solid jelly-like curd. Solid, smooth and white. Lactic acid curd. J 1. With no fluid. J 2. Showing very few furrows or gas holes. J 3. Furrows, gas holes or cracks with some fluid. 2. Peptonized curd. May he hard, contracted, and in one or sev¬ eral pieces, or soft, flocculent and mushy, with more or less fluid that is entirely clear, but may have a greenish or whitish tinge. P 1. Amount of fluid is small in proportion to size of curd. P 2. Increased amount of fluid. P 3. Amount of fluid large in proportion to curd. 3. Gaseous curd. White, jelly-like curd, showing small holes due to gas formation and in the higher degree presenting a sponge¬ like appearance; more or less fluid present, which may also show collection of gas bubbles. G 1. Gas holes in the cream layer or in the curd. G 2. Gas holes, numerous in cream and curd, and may be In fluid. G 3. Curd, sponge-like, containing many gas holes, and may be split, and a portion driven to the top, gas bubbles in the fluid. * Am. Vet. Rev., 1912, Oct., p. 25. Frost — Bacteriological Control of Public Milk Supplies. 1357 4. Flaky or Floceulent Curd. Curd in flakes associated with a turbid fluid which may be whitish, yellowish or otherwise dis¬ colored. F 1. Curd in fine flakes or partially homogeneous. F 2. Large flakes and considerable fluid. F 3. Large flakes, torn and white or discolored fluid. A considerable number of the milks were put in large test- tubes or oil-somple bottles, containing about 50 c. c. put at 37° C. and examined at from 12 to 16 hours later, and finally after two or three days. The following records were made: — 1358 Wisconsin Academy of Sciences , Arts, and Letters. Table XI— CHARACTER OF CURDS FORMED BY DIFFERENT GRADES OF MILK AT 37° C. No. Grade D. Raw. Grade C. Pasteur¬ ized. Grade B. Inspected. Grade A. Certified. 159 . J3-J3 160 . . . P2-P3 161 . P3-P3 162 . o-ji 163 . . . O-Gl 167 . . . Jl-Jl P -P P2-P2 168 . 169 . J2-G1 P2-P2 170 . 171 . 0-J2 177 . J1-J2 178 . . J1-J2 179 . O-Jl 180 . . . . . . . P-Jl P1-G2 181 . 182 . . P2-F2 J1-J2 183 . 184 . . . . . J1-J3 J1-J3 185 . 186 . . . . Pl-Fl 188 . J1-J2 J2-J2 189 . . . 190 . J2-J2 J2-J2 191 . . . 192 . P2 193 . J1 194 . . O J2 195 . Gl J1 196 . 197 . O-Gl 0-G2 O-Gl O-Pl 0-P3 0-P2 0-P3 0-P2 0-P2 198 . 199.... . 200 . 201 . l 202 . 203 . 204 . 206 . . . 207 . 0-J2 208 . . . 0-P2 209 . O-Jl 210 . Jl-Jl 214 . G2-G2 O -P2 215 . 216 . Jl-Jl J1-.T1 Jl-JB 217 . . . 218. . . . 219 . J1-J2 220 . Jl-Jl 0-F2 221 . . . 222 . . . 0-P3 230 . . . O-Pl 244 . J1-J2 250 . -PI 251 . . . . J2 254 . . . J1 O-Gl 25& . . . . . . P2 256 . P- Key: J = Jelly-like curd. F = Flocculent “ P = Peptonized “ G = Gaseous Frost — Bacteriological Control of Public Milk Supplies . 1359 Table XII.— SUMMARY OF CURDS FORMED IN VARIOUS GRADES OF MILK. Raw milks— Number tested 17 No curd . —18 hrs. 0 +48 hrs. 0 J1 “ . . . 9 4 J2 “ . . . . . 1 6 J3 “ . . . 1 2 P2 “ . 1 2 F2 “ . 1 Pasteurized milk — Number tested 12 No curd . -18 hrs. 2 4-48 hrs. 0 J1 “ . . . 5 0 J2 “ . . . 2 4 J3 “ . . . 0 3 P2 “ . . 2 2 P3 “ . 0 2 G1 “ . 0 1 Inspected milks — Number tested 19 No curd . . . —18 hrs. 8 4-18 hrs. 0 J1 • . . . 1 5 32 “ . . . 1 1 PI “ . . . 2 2 P2 “ . . . . . . . 2 P3 “ . . . 1 1 G1 “ . . . . . . . . . 0 3 G2 “ . 1 3 F “ . 0 2 Certified milks — Number tested 14 No curd . . . -18 hrs. 14 +48 hrs. 0 Jl “ . 0 2 J2 “ . 0 2 PI “ . 0 1 P2 “ . 0 3 P3 “ . 0 3 G1 “ . 0 2 G2 “ . . . 0 1 1360 Wisconsin Academy of Sciences, Arts, and Letters. As shown in the above tables (XI. and XII.) all of the seven¬ teen samples of raw milk examined curdled in less than 18 hours and in nearly all cases the curd formed was of the lactic acid type. In the pasteurized milks, two out of twelve, remained fluid for 18 hours but otherwise the character of the curds was not much different from that of the raw milks. In the case of the in¬ spected milks, nineteen samples, eight remained fluid for eighteen hours or over. The character of the curd varied more than in the previously considered classes with more P. and G. than J. curds. All of the certified milks remained fluid for more than 18 hours and the P. and G. curds were considerably in excess of the J. curds. IV. EXPERIMENTAL PASTEURIZATION. From the results which have just been discussed, especially in testing for B. coli in pasteurized milk, it seemed necessary to un¬ dertake sonte pasteurization experiments where the conditions could be accurately controlled. For this work a specially con¬ structed water-bath has been used. This consists of a bath containing about 10 liters of water, fitted with a Roux thermo- regulator, and a standardized thermometer, and also provided with a mechanical stirrer in the shape of a fan or paddle wheel run by a small electric motor. The milk was pasteurized either in test-tubes or in bottles. When the test-tubes were used, some of them were stoppered with cotton plugs, but in these cases duplicates were always made in test-tubes closed with rub¬ ber stoppers. The bottles were either pint milk bottles, closed with the ordinary paper cap, eight ounce bottles fitted with a per¬ forated lubber cork containing a thermometer, or oil sample- bottles which were fitted with a screw cap. In the test-tube ex¬ periments only a few centimeters of milk were placed in the bot¬ tom of the tube, and care was taken to immerse the test-tube in the water-bath as low as possible. Some of the bottles were im¬ mersed entirely ; in other cases only up to the caps, but not over them. The results obtained are shown in the following table (XIII). Frost — Bacteriological Control of Public Milk Supplies. 1361 Table XIII.— EXPERIMENTAL PASTEURIZATION. No. Source. Bacteria per c.c. Time and Temp. Bacteria per c. c. Fermentation lactose bile, 1 c. c. 1/10 c.c. 1 /100 c. c. Market milks 03 O % % % 05 O 226 K 5, 265, 000 ,Q 7-1 3 145 22 69, 500 0 0 226 K 5.265,000 §« 145 22 35, 700 0 0 226 K 5, 265, 000 C S 145 22 47,000 52 0 226 K 5,265,000 fH 145 22 43,000 40 0 228 K 11,825,000 O c3 3 r- 1 145 30 577,500 0 0 228 K 11,825,000 tn.S cS 145 30 680,000 0 0 233 K 2,075,000 S3 •i-i pj 145 30 34,000 0 0 233 K 2,075,000 tc o 145 30 47,000 0 0 248 K 200,000 ZS o 145 20 7,000 0 0 234 L 1,370,000 32 145 20 1,000 0 6 q 3 234 L 1.370,000 o o , t> 145 20 800 0 0 235 L 6,450,000 Of) ^ 145 20 49,000 15 0 235 L 6,450,000 145 20 44,000 0 0 245 L 1.360,000 ^ .pH 145 20 11,000 70 6 245 L 1,360,000 a® 145 20 7.000 70 65 su O) 257 L 6,000,000 23 • 145 20 24,000 15 0 0 257 L 6,000,000 ”32° 145 20 37,000 0 0 0 268 L 11,750,000 145 20 77.000 25 0 0 272 L 3,525,000 0.' 3 £ 145 20 37,000 60 70 0 Inspected milks las 266 N 23,000 O ° 145 20 4,350 0 0 0 270 N 16,000 145 20 3,800 60 60 70 326 N 500,000 M 145 20 1,400 0 0 0 From the above table it appears that is is not always possible to pasteurize milk, at the temperature and time used, when it is heavily seeded with B. coli, so that one c. c. will not ferment lac¬ tose. That lactose fermenters may not always be B. coli has already been discussed (see p. 1345). The high per cent of gas especially in fractions of a c. c. are to be regarded as due to some anaerobe and not as B. coli. 1362 Wisconsin Academy of Sciences, Arts, and Letters. V. SUMMARY AND CONCLUSIONS. A collecting case for carrying milk samples of 120 c. c. capacity is described. A study of the loss of volume during sterilization in the auto¬ clave reveals the fact that in the case of water blanks the loss varies from 1 to 8 per cent; that the loss varies with the auto¬ clave ; that the loss can be prevented by closing the autoclave up cold and not permitting the escape of steam, and that the insuf¬ ficiency of sterilization in this way can be avoided by running the material to be sterilized a second time. The use of caps of paraffined paper is suggested on water blanks to prevent evapo¬ ration. In making dilutions and shaking them it is recommended that the sterile paper cap be placed over the neck of the bottle and forced in place with a cork which is suggested for use in¬ stead of the usual cotton plug. A study of pipettes leads to certain suggestions in regard to form and methods of cleaning. A new piece of apparatus is described to be known as the “Me¬ chanical volumetric pipette” or “pipettometer.” This makes the accurate measurement of fractions of a cubic centimeter, with an ungraduated pipette, easily possible. It possesses other ad¬ vantages over the ordinary pipette used in bacteriological wo*rk. It will also be found useful in graduating pipettes. A study of Schroeder’s ring method shows it to be considerably less accurate than the ordinary methods, and on this account unworthy of general adoption. Reasons for the use of an incubation temperature of 21° C. in¬ stead of 37° C. are suggested. A new form of apparatus for counting colonies is described. . In tests for B. coli in milk a new medium (neutral red milk broth) is described; a comparison of the Smith and Durham fer¬ mentation tubes is made, and a simple form of gasometer for the latter is suggested. Endo’s medium is discussed as a means of detecting B. coli in milk as well as certain phases of its manufacture. A new method of determining the thermal death-point of bac- Frost — Bacteriological Control of Public Milk Supplies . 1363 teria, in connection with the “pipettometer” is; described, and the results for B. coli in milk are discussed. A study of the inhibiting action of milk on the amount of gas produced in the fermentation tube, when compared with results obtained in ordinary lactose media, shows that while this reaction is pronounced in the case of milk that it does not apparently modify the results when a cubic centimeter or less of milk is added to a fermentation tube of other lactose medium. A modified form of a common test for the streptococci in milk, other than those of sour milk, is suggested, together with experi¬ mental data of its value. A modification of Savage’s method for a quantitative test for Bact. Welchii is described. A description of a new form of fermentation tube is given. This tube collects the gas from a constant amount of the medium and is especially useful in the study of anaerobes, and was used to test out certain doubtful cultures of Bact. Welchii. Thirty samples of certified milks were analyzed from eight different sources. Thirty-two samples of inspected milks were examined from seven different sources. Thirty-seven samples of pasteurized milks were studied from six different sources. Forty-two samples of raw milk were tested from ten different sources. On all of the samples the following tests were made: 1) Total number of bacteria growing at 21° C. ; 2) gas production in lac¬ tose media; 3) Bact. Welchii, quantitative; 4) spores or bacteria resisting heat at 80° C. for 10 minutes. On part of the samples the following additional tests were run: 5) streptococci; 6) character of the curd at 38° C. The analyses of these milks under winter conditions, presum¬ ably the most favorable for both producer and consumer, show that the raw milks have a bacterial content ranging from 30,000 to 14,400,000 per c. c. The average count of milks sold in a raw state was found to be approximately 2,000,000 per c. c. ; the aver¬ age count of raw milks to be pasteurized in bulk was practically the sarnie, while the average count for the milks to be pasteurized in bottles was 532,000 per c. c. The inspected milks have an aver¬ age count of 159,560 per c. c. and the certified milks of approxi¬ mately 20,000. 1364 Wisconsin Academy of Sciences, Arts, and Letters. Bacteria fermenting lactose with the formation of gas — oolon- like bacilli — were found to be distributed in the various grades of milk as follows : Raw milks gas in Raw milks gas in Inspected milks gas in Inspected milks gas in Certified milks Pasteurized in bulk, gas in Pasteurized in bulk, gas in Pasteurized in bottle, gas in Pasteurized in bottle, gas in 83% of 1/100 c. c. sample 71% of 1/1000 c. c. sample 54% of 1 c. c. sample 30% of 1/100 c. c. sample 0% of 1 c. c. sample 83% of 1 c. c. sample 25% of 1/100 c. c. sample 4% of 1 c. c. sample 0% of 1/100 c. c. sample Endo’s medium was found to be only fairly satisfactory as a means of detecting colon-like organisms in milk, especially where as much as 1 cubic centimeter of milk needs to be used. Endo plates run with fermentation-tube test obviate the possi¬ bility of confusing coli with anaerobic bacteria capable of fer¬ menting lactose, since such organisms do not grow similar to B. coli on the Endo plates. Bact. Welchii was found to be present in considerable numbers in raw milks, 3.2 being the average number found to each 20 c. c. It was found with practically equal frequency in pasteurized milks, less frequently in inspected milks, and rarely if ever in certified. Apparently one such spore per 20 cubic centimeters of milk is of little significance, but a greater number, such as three or four per c. c. would seem to be a good indication that a milk is rather seriously contaminated. The presence of this germ in con¬ siderable quantities in pasteurized milk is apparently a good indi¬ cation that the milk used for the purpose of pasteurization is seriously contaminated. This method seems, then, to be especially useful where a pasteurized milk is under investigation whose con¬ dition in a raw state was unknown. On this account, and for this purpose, the use of this method merits further study. Tiie number of spores, or those forms capable of resisting a temperature of 80° C. for ten minutes, furnishes data of value in connection with the other facts in regard to a particular milk, e. g., a raw milk having a high total count and a low spore count has probably not been kept at a temperature sufficiently low, or if it has been kept at a low temperature, not for a long enough time to allow germination and growth; a high spore count in a pasteurized milk indicates either a poor raw milk, a low pasteur¬ izing temperature, or a contamination with heat-resisting forms Frost— Bacteriological Control of Public MUk Supplies. 1365 after pasteurization, a condition frequently obtaining in pasteur¬ izing plants at the present time. Certified milk and good in¬ spected milks have surprisingly few spore forms. The rate at which colonies on agar plates, incubated at 21° C., develop, may be used to differentiate different grades of milk. The bacteria from raw market milks grow out much faster than do the bacteria in pasteurized or certified milks. The character of the curd produced by milks of the various classes at 37° C. was studied. The raw milks all promptly formed lactic acid curds. The same was true of the pasteurized milks. The inspected and certified milks more frequently formed sweet or gaseous curds. A number of milks were heavily seeded with B. coli and then pasteurized at 60° C. for 20 minutes. By this procedure it was found impossible to always kill all of the B. coli present. I desire to express my indebtedness to Dr. M. J. Rosenau who has been ever ready with suggestions and encouragement, and who has followed the progress of this work with interest and appreciation ; to the Boston Milk and Baby Hygiene Association for their liberality and foresight in providing a fellowship under which this work has been done ; and to Drs. L. E. Poole and A. D. Browne, and Mr. John Foley, for assistance at various times. 1366 Wisconsin Academy of Sciences , Arts, and Letters. LIST OF OFFICERS AND MEMBERS, CORRECTED TO MARCH 1, 1914. OFFICERS. President, D. C. Munro, Madison. Vice-President, Sciences, I. N. Mitchell, Milwaukee*. Vice-President, Arts, A. C. Clas, Milwaukee. Vice-President, Letters, F. M. Erickson, Ripon. Secretary, Arthur Beatty, Madison. Treasurer, Arthur Beatty, Madison. Curator, C. E. Brown, Madison. Librarian, Walter M. Smith, Madison. Committee on Publication, The President, ex officio. The Secretary, ex officio. C. E. Allen, Madison. COUNCIL. The President, Vice-Presidents, Secretary, Treasurer, Libra¬ rian, and Past Presidents retaining their residence in Wisconsin. ^Deceased Officers and Members. 1367 i Committee on Library , The Librarian, ex officio. P. H. Dernehl, Milwaukee. George Wagner, Madison. R. G. Thwaites**, Madison. C. A. Youtz, Appleton. Committee on Membership. The Secretary, ex officio. H. L. Ward, Milwaukee. A. F. McLeod, Beloit. Helen Sherman, Washington. L. R. Ingersoll, Madison. Past Presidents. Honorable John W. Hoyt, M. D., LL. D., Washington, D. C., 1870-75. Dr. P. R. Hoy, M. D.,# 1876-78. President A. L. Chapin, D. D.,# 1879-81. Professor Roland D. Irving, Ph. D.,# 1882-84. Professor Thomas C. Chamberlin, Ph. D., Sc. D., LL. D., Chicago, Ill., 1885-87. Professor William F. Allen,! 1888-89. Professor Edward A. Birge, Ph. D., Sc. D., LL. D., Madison, 1889-90. Librarian George W. Peckham, LL. D., Milwaukee, 1891-93. ft President Charles R. Van Hise, Ph. D., LL. D., Madison, 1894-96. Professor C. Dwight Marsh, A. M., Ph. D., Washington, D. C., 1897-99. Professor Charles S. Slichter, M. S., Madison, 1900-1902. Dr. John J. Davis, M. D., Racine, 1903-1905. Professor Louis Kahlenberg, Ph. D., Madison, 1906-1909. President Samuel Plantz, Ph. D., D. D., LL. D., Lawrence Col¬ lege, Appleton, 1910-1912. **Deceased * Deceased, f Deceased December 9, 1899. Professor Birge elected to fill he," expired term. ftDeceased. 1368 Wisconsin Academy of Sciences, Arts, and Letters , HONORARY MEMBERS. Chamberlin, Thomas Chrowder, Hyde Park, Hotel, Chicago, Ill. A. B. (Beloit) ; Ph. D. (Wisconsin, Michigan) ; LL. D. (Michigan, Beloit, Columbian, Wisconsin) ; Sc. D. (Ilinois). Head of Geological De¬ partment and Director of Walker Museum, University of Chicago, Consulting Geologist U. S. Geological Survey ; Consulting Geologist, Wisconsin Natural History Survey ; Geological Commissioner, Illinois Geological Survey ; Editor. Journal of Geology. Garland, Hamlin, New York, N. Y. Vice-President, International Institute of Arts and Letters. Chairman of Cliff-Dwellers, of Chicago. Jordan, David Starr, President Emeritus of Stanford University, Stanford Uni¬ versity, Cal. M. S., Cornell University, 1872 ; M. D„ Indiana Medical College, 1875 ; Ph. D., Butler College, 1878 ; LL. D., Cornell University, 1886, Johns Hopkins University, 1902, Illinois College, 1903 ; Instructor in Botany, Cornell University, 1871—72 ; Professor of Natural History, Lombard University, 1872-73 ; Principal of Appleton (Wis.) Collegiate Insti¬ tute, 1873-74; Lecturer in Marine Botany at Penikese, 1873-74; Teacher of Natural History, Indianapolis High School, 1874-75 ; Professor of Biology, Butler College, 1875-79 ; Instructor in Botany, Harvard Summer School, Cumberland Gap, 1875-76 Assistant to U. S. Fish Commission, 1877-81 ; Professor of Zoology, Indiana University, 1879-85 ; President of Indiana University, 1885-91 ; President of the California Academy of Sciences, 189*-98, 1901- 03, 1908 ; U. S. Commissioner in charge of Fur Setl. Investigations, 1896-98 ; of Salmon In¬ vestigations, 1904 ; International Commis¬ sioner of Fisheries, since 1908 ; President of the American Association for the Advancement of Science, 1903-09. Trelease, William, Botanical Garden, St. Louis, Mo. B. S. (Cornell) ; S. D. (Harvard) ; LL. D. (Wisconsin, Missouri, Washing¬ ton University). Director of Missouri Botanical Garden; Engelmann Professor of Botany, Henry Shaw School of Botany, Washington University ; President, Academy of Science of St. Louis ; Secretary, The Round Table, St. Louis ; Honorary President, Engelmann Botanical Club, St. Louis ; Chairman, City Plan Committee, Civic League, St. Louis ; Vice President, Board of Com¬ missioners, Tower Grove Park, St. Louis. Wheeler, W. M., Forest Hills, Boston, Mass. Ph. D. Professor of Economic Entomology, Harvard University. Whitman, Charles Otis, University of Chicago, Chicago, Ill. A. B., A. M. (Bowdoin) ; Ph. D. (Leipzig) ; LL. D. (Nebraska). Head Professor of Zoology, University of Chicago ; Director of Marine Biological Laboratory, Woods Hole, Mass. Officers and Members, 1369 LIFE MEMBERS. Birge, Edward Asabel, 744 Langdon St., Madison A. B., A. M. (Williams) ; Ph. D. (Harvard) ; Sc. D. (Western University of Pennsylvania) ; LL. D. (Williams). Professor of Zoology and Dean of the College of Letters and Science, University of Wis¬ consin ; Secretary of Commissioners of Fisheries, Wiscon¬ sin ; Director and Superintendent, Wisconsin Geolog¬ ical and Natural History Survey ; Member, Wis¬ consin State Board of Forestry ; Wisconsin Conservation Commission, Senator, Phi Beta Kappa Davis, John Jefferson, 629 Mendota Court, Madison B. S. (Illinois) ; M. D. (Hahnemann). Physician. Curator of Her¬ barium, University of Wisconsin. Flint, Albert Stowell, 450 Charter St., Madison A. B. (Hard) ; A. M. (Cincinnati). Astronomer, Washburn Observa¬ tory, University of Wisconsin. Hobbs, William Herbert, 820 Oxford Road, Ann Arbor, Mich. B. S. (Worcester Polytechnic Institute) ; A. M., Ph. D. (Johns Hopkins). Professor of Geology, University of Michigan. Hoyt, John Wesley, Washington, D. C. A. M. (Ohio Wesleyan) ; M. D. (Cincinnati) ; LL. D. (Missouri) Chair¬ man of the National Committee of Four Hundred to Promote the Establishment of the University of the United States. Marsh, Charles Dwight, 3430 Brown St., N. W., Washington, D. C. A. B., A. M. (Amherst) ; Ph. D. (Chicago). Physiologist in Bureau of Plant Industry, United States Department of Agriculture. Plantz, Samuel, 545 Union St., Appleton A. M. (Lawrence) ; Ph. D. (Boston) ; D. D. (Albion) ; LL. D. (Baker). President, Lawrence College. Sharp, Frank Chapman, 27 Mendota Court, Madison A. B. (Amherst) ; Ph. D. (Berlin). Professor of Philosophy, University of Wisconsin. Skinner, Ernest Brown, 210 Lathrop St., Madison A. B. (Ohio) ; Ph. D. (Chicago). Assistant Professor of Mathematics, University of Wisconsin. Slighter, Charles Sumner, 636 Frances St., Madison B. S., M. S. (Northwestern). Professor of Applied Mathematics. University of Wisconsin ; Consulting Engineer. 1370 Wisconsin Academy of Sciences, Arts, and Letters. Van Cleef, Frank Louis, 39 For Green Place, Brooklyn, N. Y. A. B. (Oberlin, Harvard) ; Ph. D. (Bonn). Chief of Sixth Division and Translator in Office of Commissioner of Records, Kings County. Van Hise, Charles Bichard, 772 Langdon St., Madison B. Met. E., B. S., M. S., Ph. D. (Wisconsin) ; LL. D. (Chicago, Yale, Harvard, Williams, Dartmouth). President, University of Wis¬ consin ; Consulting Geologist, Wisconsin Geological Survey ; President, Board of Commissioners, Wisconsin Geological and Natural History Survey ; President, Wisconsin State Board of Forestry. ACTIVE MEMBERS. Allen, Bennett Mills, Lawrence, Kansas Ph. B. (De Pauw) ; Ph. D. (Chicago). Professor of Zoology University of Kansas. Allen, Charles Elmer, 2014 Chamberlin Aye., Madison B. S., Ph. D. (Wisconsin). Professor of Botany, University of Wis¬ consin. Allen, Ruth Florence, East Lansing, Mich. A. B., A. M. (Wisconsin), instructor in Botany, Michigan Agricul¬ tural College. Arzberger, Emil Godfrey, 4233 Shenandoah St., St. Louis, Mo. Ph. B. (Wisconsin). Research Fellowship, Missouri Botanical Garden. Bagg, Rufus M. Jr., 466 Alton St., Appleton Professor of English, Lawrence College. Barber, W. Harley, 120 Thorn St., Ripon Wis. A. B. (University of Wisconsin) ; M. A. (University of Wisconsin) Registrar and Professeror of Physics, Ripon College, Ripon, Wis. Member of City Council. Barbour, Harris Merrill, (Milton M. A., B. D. Professor of Philosophy and History, Milton College. Bardeen, Charles Russell, 25 Mendota Court, Madison A. B. (Harvard) ; M. D. (Johns Hopkins). Professor of Anatomy, and Dean of the Medical School, University of Wisconsin. Barrett, S. A., Public Museum, Milwaukee B. S., M. S'.. Ph. D. (University of California). Anthropologist; Cura¬ tor of Anthropology, Public Museum, Milwaukee. Barth, George P., Physician. 302 21st St., Milwaukee Officers and Members. 1371 Bartholomew, Elbert T., 803 State St„ Madison Instructor in Botany, University of Wisconsin. B ascom, Leila, 139 W. Gilman St., Madison Instructor in English, University of Wisconsin. Bassett, Harry Kendall, 110 Spooner St., Madison Assistant Professor of English, University of Wisconsin. Beatty, Arthur, 1824 Yilas St., Madison A. B. (Toronto) ; Ph. D. (Columbia). Assistant Professor of English, University of Wisconsin. Blackstone, Dodge Pierce, 921 Wisconsin St., Berlin A. B., A. M., C. E. (Union). Bleyer, Willard Grosvenor, 625 Langdon St., Madison B. L., M. L., Ph. D. (Wisconsin). Associate Professor of Journalism, University of Wisconsin. Boren, Welz E., Milwaukee Boyd, C. E. Tallahasse, Fla. Professor, Florida State College for Women. Braun, Adolph R., 832 38th St., Milwaukee Graduate of National German-American Teachers’ Seminary, Milwaukee. Teacher of Modern Languages, Milwaukee High School. Brinckley, William Joshua, 1303 Grand Ave., Milwaukee A. B. (Salina) ; B. S., A. M. (De Pauw) ; Ph. D. (Austin). Lecturer, Public Museum. Brown, Charles E., 910 Yan Buren St., Madison Secretary and Curator, Wisconsin Archaeological Society ; Chief, State Historical Museum. Brown, Charles Newton, 271 Langdon St., Madison LL. B. (Wisconsin). Lawyer. Brown, Eugene Anson, 2015 Jefferson St., Madison M. D. (Hahnemann). Physician and Surgeon ; Secretary of Board of Federal Pension Examiners, Madison District. Brown, Harold Gibson, 803 State St., Madison Instructor in English, University of Wisconsin. Brues, Charles Thomas, Bussey Institution, Forest Hill, Boston, Mass. B. S., M. S. (Texas). Instructor in Economic Entomology, Harvard University. Brundage, Albert H., 375 Gates Ave., Brooklyn Borough, New York City Emeritus Professor of Toxicology and Physiology, Marquette University ; Physician. 1372 Wisconsin Academy of Sciences, Arts, and Letters. Buehler, Henry Andrew, Holla, Mo. B. S. (Wisconsin). Geologist; State Geologist of Missouri. Bunting, Charles Henry, 2020 Chadbourne Ave., Madison Professor of Pathology, University of Wisconsin. Burrill, Alfred C., 2208 Monroe St. Madison S. B. (Harvard). Instructor in Economic Entymology, University of Wisconsin. Bussewitz, M. A. Milwaukee Professor, Milwaukee State Normal School. Cairns, William B., 2010 Madison St., Madison A. B., Ph. D. (Wisconsin), Assistant Professor of American Litera¬ ture, University of Wisconsin. Campbell, O. J. Jr., 15 E. Gilman St., Madison Ph. D. (Harvard) Assistant Professor of English, University of Wis¬ consin. Carr, Muriel B., The Irving, Madison Instructor in English, University of Wisconsin. Chandler, Elwyn Francis, University, N. D. A. B., A. M. (Ripon). Professor of Mathematics, University of North Dakota ; Assistant Engineer, United States Geological Survey. Chase, Wayland J., 141 Summit Ave., Madison A. B., A. M. (Brown). Associate Professor of History, University of Wisconsin. Cheney, Lellen Sterling, Barron B. S., M. S. (Wisconsin). County Superintendent. Clas, Alfred Charles, Flat 2, St. James Ct., 815 Grand Ave., Milwaukee Architect (Ferry & Clas), 419 Broadway, Milwaukee; Member, Board of Park Commissioners. Clawson, Arthur Brooks, Washington, D. C. A. B. (Michigan). Department of Agriculture, Washington. Coffin, Victor, 1919 Arlington PL, Madison Ph. D. (Cornell). Assistant Professor of European History, University of Wisconsin. Cole, Leon J., 1915 Keyes Ave., Madison A. B. (Michigan) ; A. M. (Harvard) ; Ph. D. (Wisconsin). Associate Professor of Experimental Breeding, University of Wisconsin. Compton, J. S., Eureka, Illinois Conklin, G. H., 1204 Tower Ave., Superior Practicing Physician. Officers and Members , 1373 Cool, Charles Dean, 1607 Adams St., Madison A. B. (Michigan) ; A. M. (Harvard) ; Ph. B. S., A. M. (Wisconsin). Bureau of Chemistry. Sherman, Lewis, 448 Jackson St., Milwaukee B. S., A. M. (Union) ; M. D. (New York). Physician and Pharmacist. Showerman, Grant, 410 N. Butler St., Madison A. B., Am., Ph. D., University of Wisconsin. Professor of Latin, University of Wisconsin. Sieker, William Christian, 753 Murray Ave., Milwaukee B. S. (Wisconsin). Secretary and Treasurer, Manthey-Sieker Company. Slaughter, Moses Stephen, 633 Frances St., Madison A. B., A. M. (De Pauw) ; Ph. D. (Johns Hopkins). Professor of Latin, University of Wisconsin. Smith, Cornell Rae, Milwaukee Assistant Geologist, Public Museum. Smith, Erastus Gilbert, 649 Harrison Ave., Beloit A. B., A. M. (Amherst) ; A. M., Ph. D. (Gottingen). Professor of Chemistry, Beloit College. Smith, Gilbert Morgan, 1606 Hoyt St., Madison Instructor in Botany, University of Wisconsin. Smith, Walter McMynn, 127 Langdon St., Maidison A. B. (Wisconsin). Librarian, University of Wisconsin. 1382 Wisconsin Academy of Sciences, Arts , and Letters. Smythe, Sidney T., Delafield A. B., A. M. (St. Stephen’s) ; B. D. (Nashotah) ; D. D., Ph. D. (Hobart). President, St. John’s Military Academy ; Member, Commit¬ tee on Canons, Protestant Episcopal Church. Snow, Benjamin Warner, 221 Langdon St., Madison Ph. D. (Berlin). Professor of Physics, University of Wisconsin. Spencer, Matthew Lyle, 8 Alton Place, Appleton A. B., A. M., Kentucky Wesleyan College ; A. M., Northwestern Uni¬ versity ; Ph. D., University of Chicago. Professor of English. Lawrence College. Squier, George Hull, Starr, William J., Trempealeau Dairyman. 135 Marston Ave., Eau Claire LL. B. (Columbia). Member, Board of Commissioners of Fisheries, Wisconsin ; President, Eau Claire Public Library. Steidtmann, E., 2002 Monroe St., Madison A. B., A. M.. Ph. D., (University of Wisconsin). Assistant Professor of Geology, University of Wisconsin. Stephens, W. T., Stickney, M. E., State Normal School. Denison University. Milwaukee Granville, 0. Stout, Arlow Burdette, 924 Clymer Place, Madison A. B. (Wisconsin). Instructor in Botany, University of Wisconsin. Talbert, George A., Ripon B. S., M. S. (Ohio Wesleyan). Instructor in Biology, Ripon College. Teller, Edgar Eugene, 3321 Sycamore St., Milwaukee Thorkelson, Halsten Joseph Berford, 1526 W. Washington Ave., Madison B. S., M. E. (Wisconsin). Professor of Steam Engineering, Univer¬ sity of Wisconsin. Toole, William Alexander, Pansy Heights, Baraboo, Wis. Pansy Specialist. Trever, A. A. 368 State St., Appleton Ph. D. (Chicago). Professor of Greek, Lawrence College. Turneaure, Frederick Eugene, 166 Prospect Ave., Madison C. E. (Cornell). Professor of Engineering and Dean of the College of Engineering, University of Wisconsin. Updike, Eugene Grover, Rev., 148 Langdon St., Madison Pastor, First Congregational Church, Madison. Officers and Members, 1383 Van Vleck, Edward Burr, 519 North Pinckney St., Madison A. B., A. M. (Wesleyan) ; Ph. D. (Gottingen) ; LL. D. (Clark). Pro¬ fessor of Mathematics, University of Wisconsin ; Editor, Trans¬ actions of the American Mathematical Society. Vaughan, R. E., 1126 Chandler St., Madison Assistant in Plant Pathology, University of Wisconsin. Vogel, Mrs. Guido Charles, 409 Terrace Ave., Milwaukee B. S. (Wisconsin). Vorhies, Charles Taylor, Salt Lake City, Utah B. S. (Iowa Wesleyan). Professor of Zoology, University of Wisconsin. Voss, Ernest Karl Johnann Heinrich, Nelson Avenue, West Lawn Heights Ph. D. (Leipzig). Professor of German Philology, University of Wiscon¬ sin ; Vice-President, Germanic Museum Association. Wadmond, Samuel C., Delavan Vice-President, Jackson and Jackson Company, Delavan ; Secretary of Board, Aram Public Library, Delavan. Wagner, George, 1901 Jefferson St., Madison Ph. C. (Michigan) ; A. B. (Kansas) ; A. M. (Michigan). Assistant Pro¬ fessor of Zoology, University of Wisconsin ; Ichthyologist, State Geological and Natural History Survey. Ward, Henry Levi, Milwaukee Public Museum, Milwaukee Director, Milwaukee Public Museum ; Vice-President, Wisconsin Natural History Society. Watson, Charles Francis, Stevens Point Teacher of Geography, State Normal School. Watt, Homer A., 1913 Rowley Ave., Madison, Wis. A. B. (Cornell U.) ; A. M., Ph. D. (Wisconsin). Instructor in English, University of Wisconsin. Wexdman, Samuel, 410 North Henry St., Madison B. S., Ph. D. (Wisconsin). Geologist, Wisconsin Geological and Nat¬ ural History Survey. West, George A., 97 Wisconsin St., Milwaukee Lawyer ; President, Board of Trustees, Milwaukee Public Museum. Whitford, Alfred Edward, Milton M. A. Professor of Mathematics and Physics, Milton College. 1384 Wisconsin Academy of Sciences, Arts , and Letters. Whitson, Andrew Kobinson, Koute 7, Madison B. S. (Chicago). Professor of Soils and Drainage, University of Wis¬ consin ; Field Agent, United States Department of Agriculture. Winchell, Alexander N., 200 Prospect Aye., Madison B. S. and M. S. (University of Minnesota) ; D. Sc. (University Paris) Professor of Mineralogy and Petrology, University of Wiscon¬ sin, Geologist, Oregon Bureau of Mines and Geology. Wolfenson, Louis B., 1620 Madison St., Madison Assistant Professor of Hebrew and Hellenistic Greek, University of Wisconsin. Wolff, Henry Charles, 6 South Prospect Ave., Madison B. S., M. S. (Wisconsin). Instructor in Mathematics, University of Wisconsin. Woll, Fritz Wilhelm, Davis, Calif. B. S., Ph. B. (Christiana) ; M. S., Ph. D. (Wisconsin). Professor in the California State Agricultural College. Wright, Clement Blake Bergin, 284 Martin St., Milwaukee A. B., A. M. (Toronto) ; B. D. (Nashotah) ; Ph. D. (Kansas City) ; Clergyman ; Canon, Milwaukee Cathedral ; Secretary, Diocese of Milwaukee ; Librarian, Diocesan Library ; Examining Chap- Yoder, Albert Henry, Whitewater President, State Normal School, Whitewater. Young, Karl, 406 N. Henry St., Madison A. B. (Michigan) ; A. M. and Ph. D. (Harvard). Associate Professor of English, University of Wisconsin. Youtz, Lewis Addison, Appleton Ph. B., M. S. (Simpson) ; Ph. D. (Columbia). Professor of Chemistry, Lawrence College. Zdanowicz, Casimir Douglass, 1818 Madison St., Madison Assistant Professor of Romance Languages, University of Wisconsin. Zimmerman, Oliver Brunner, Brussels, Belgium B. S., M. E. (Wisconsin). International Harvester Corporation. Officers and Members. 1385 CORRESPONDING MEMBERS. Abbott, Charles Conrad, Trenton, N. J. M. D. (Pennsylvania). Armsby, Henry Prentiss, State College, Pa. B. S. (Worcester Polytechnic) ; Ph. B., Ph. D. (Yale) ; LL. D. (Wiscon¬ sin). Director of Institute of Animal Nutrition; Expert in Animal Nutrition, United States Department of Agriculture. Bennett, Charles Edwin, 1 Grove Place, Ithaca, N. Y. A. B., Litt. D. (Brown). Professor of Latin Language and Literature, Cornell University. Bridge, Norman, Auditorium Building, Los Angeles, Cal. A. M. (Lake Forest) ; M. D. (Northwestern, Rush). Emeritus Professor of Medicine, Rush Medical College. Physician. Caverno, Charles, Lombard, Ill. A. B., A. M. (Dartmouth). Professor Emeritus, Ripon College. Chandler, Charles Henry, New Ipswich, N. H. A. B„ A. M. (Dartmouth). LL. D. (Colorado). Clergyman, retired. Coulter, John Merle, University of Chicago, Chicago, Ill. A. B., A. M., Ph. D. (Hanover) ; Ph. D. (Indiana). Professor of Bot¬ any and Head of Department, University of Chicago. Crooker, Joseph Henry, 820 South St., Roslindale, Boston, Mass. D. D. (St. Lawrence, Nashville). Minister, Unitarian Church. Davis, Floyd, 317 Iowa Loan and Trust Building, Des Moines, Iowa Ph. B., C. E., E M. (Missouri) ; Ph. D. (Miami). Analytical and Con¬ sulting Chemist. Eaton, Edward Dwight, Beloit A. B., A. M. (Beloit) ; B. D. (Yale) ; LL. D. (Wisconsin) ; D. D. (North¬ western, Yale). President, Beloit College. Eckels, William Alexander, Easton, Pa. A. B., A. M. (Dickinson) ; Ph. D. (Johns Hopkins). Associate Professor of Greek, Lafayette College. Fallows, Samuel, 2344 Monroe St., Chicago, Ill. A. B., A. M., LL. D. (Wisconsin) ; D. D. (Lawrence, Marietta). Pre¬ siding Bishop. Reformed Episcopal Church ; President, Board of Managers, Illinois State Reformatory. Harper, Robert Aylmer, New York, N. Y. A. B. (Oberlin), Ph. D. (Bonn). Professor of Botany, Columbia University. 1386 Wisconsin Academy of Sciences, Arts, and Letters . Hendrickson, George Lincoln, 68 Trumbull St., New Haven, Conn. A. B. (Johns Hopkins) ; L. H. D. (Western Reserve). Professor of Latin. Yale University. Hodge, Clifton Fremont, 3 Charlotte St., Worchester, Mass. A. B. (Ripon) ; Ph. D. (Johns Hopkins). Professor of Physiology and Neurology, and Professor of Biology in the Collegiate Depart¬ ment, Clark University. Holden, Edward Singleton, United States Military Academy, West Point, N. Y. B. S., A. M. (Washington) ; Sc. D. (Pacific) ; LL. D. (Wisconsin, Colum¬ bia). Astronomer ; Librarian, United States Military Academy, West Point. Hoskins, Leander Miller, 365 Lincoln Ave., Palo Alto, Cal. M. S., C. E. (Wisconsin). Professor of Applied Mathematics, Leland Stanford Jr. University. Xddings, Joseph Paxon, 5730 Woodlawn Ave., Chicago, Ill. Ph. B. (Yale). Professor of Petrology, University of Chicago; Geologist, United States Geological Survey. Kinley, David, Urbana, Ill. A. B. (Yale) ; Ph. D. (Wisconsin). Dean of the Graduate School and Professor of Economics, University of Illinois. Leverett, Frank, 312 N. Thayer St., Ann Arbor, Mich. B. Sc. (Iowa Agricultural). Geologist, United States Geological Sur¬ vey ; Lecturer in Geology, University of Michigan. Libby, Orin Grant, Grand Forks, N. D. B. L., M. L ., (Wisconsin). Professor of History, University of North Dakota, State Historical Society of North Dakota. Lurton, Freeman Ellsworth, Fergus Falls, Minn. B. S., M. S. (Carleton) ; A. M. (Upper Iowa) ; Ph. D. (Gale). Superin¬ tendent of Public Schools ; Member, Board of Directors, Fergus Falls Public Library. Luther, George Elmer, 262 South College Ave., Grand Rapids, Mich. Cashier, People’s Savings Bank ; Treasurer, Historical Society of Grand Rapids. Marx, Charles David, Palo Alto, Cal. B. C. E. (Cornell) ; C. E. (Karlsruhe). Professor of Civil Engineering, Leland Stanford Jr. University. McClumpha, Charles Flint, 56 Church St., Amsterdam, N. Y. A. B., A. M. (Princeton) ; Ph. D. (Leipzig). Treasurer, McClumpho Company ; Member, Fort Johnson Club ; Treasurer, Amsterdam Free Library ; Historian, Montgomery County Historical Society ; Member, New York State Historical Society. Officers and Members. 1387 Mqorehouse, George Wilton, 2069 East 96th St., Cleveland, 0. B. L., M. L. (Wisconsin) ; M. D. (Harvard). Physician to the Dispen¬ sary of Lakeside Hospital and Western Reserve University. Nehrling, Henry, Palm Cottage Experiment Garden, Gotha, Orange County, Fla. Olive, Edgar W. Brookings, S. D. Professor of Botany, South Dakota Agricultural College. Peet, Stephen Denison, 438 57th St., Chicago, Ill. A. M„ Ph. D. (Beloit). Clergyman; Editor, American Antiquarian and Oriental Journal. Potter, William Bleecker, 1225 Spruce St., St. Louis, Mo. A. B., A. M., M. E., Sc. D. (Columbia). Mining Engineer and Metal¬ lurgist. Power, Frederick B elding, 535 Warren St., Hudson, N. Y . Ph. G. (Philadelphia College of Pharmacy) ; Ph. D. (Strassburg). Di¬ rector of Wellcome Chemical Research Laboratories, London, England. Salisbury, Rollin D., 5730 Woodlawn Ave., Chicago, Ill. A. M., LL. D. (Beloit). Professor of Geographic Geology, Head of the Department of Geography and Dean of the Graduate School of Science, University of Chicago ; Geologist, United States Geological Survey and State Geological Survey of New Jersey. Sawyer, Wesley Caleb, 725 Asbury St., San Jose, Cal. A. B., A. M. (Harvard) ; A. M., Ph. D. (Gottingen). Professor of French and German and Lecturer on Tuetonic Mythology, University of the Pacific. Stone, Ormond, University Station, Charlottesville, Va.. A. M. (Chicago). Director of the Leander McCormick Observatory and Professor of Practical Astronomy, University of Virginia. Tolman, Albert Harris, 5750 Woodlawn Ave., Chicago, Ill. A. B. (Williams) ; Ph. D. (Strassburg). Associate Professor of English Literature, University of Chicago. Tolman, Herbert Cushing, Nashville, Tenn. A. B., Ph. D. (Yale) ; D. D. (Nashville). Professor of Greek, Vanderbilt University ; Canon, All Saints’ Cathedral. Townley, Sidney Dean, Ukiah, Cal. B. S., M. S. (Wisconsin) ; Sc. D. (Michigan). Astronomer in Charge of International Latitude Observatory ; Lecturer in Astronomy, University of California ; Editor of Publications, Astrono¬ mical Society of the Pacific. 1388 Wisconsin Academy of Sciences , Arts > and Letters. Turner, Frederick Jackson, Cambridge, Mass. A. B., A. M. (Wisconsin) ; Ph. D. (Johns Hopkins) ; LL. D. (Illinois) ; Litt. D. (Harvard). Professor of American History, Harvard University ; President, American Historical Association ; Member, Massachusetts Historical Association ; Ameri¬ can Antiquarian Society ; Colonial Society of Massachusetts ; Wisconsin Historical So¬ ciety ; Mississippi Valley Historical Society, etc. Van de Warker, Ely, 404 Fayette Park, Syracuse, N. Y. M. D. (Albany Medical and Union). Surgeon, Central New York Hos¬ pital for Women ; Consulting Physician, St. Ann’s Maternity Hospital ; Senior Surgeon, Women’s and Children’s Hospital ; Commissioner of Education, Syra¬ cuse. Verrill, Addison Emery, 86 Whalley Ave., New Haven, Conn. B. S. (Harvard) ; A. M. (Yale). Professor of Zoology, Yale University, Curator of Zoology, Yale University Museum ; President Connecticut Academy of Arts and Sciences. Winchell, Newton Horace, 501 East River Road, Minneapolis, Minn. A. M. (Michigan). Geologist and Archaeologist. Young, Albert Adams, 531 South Claremont Ave., Chicago, Ill. A. B., A. M. (Dartmouth) ; B. D. (Andover). Clergyman. Officers and Members. 1389 MEMBERS DECEASED. Information of whose decease has been received since the issue of Volume XVI. Bascom, John, A. B., A. M. (Williams) ; D. D. (Iowa) ; LL. D. (Amherst, Williams, Wisconsin). Greylock Commissioner. Blair, Emma Helen, B. S., A. M. (Ripon and Wisconsin). Joint Editor of “The Philippines, 1493-1898,” and Editor of “The Indian Tribes of the Upper Mississippi Valley.” Buckley, Ernest Robertson, Rolla, Mo. B. S.. Ph. D. (Wisconsin). Mining Geologist; President, American Min¬ ing Congress. Chandler, Charles Henry, A. B., A. M. (Dartmouth) ; LL. D., Colorado. Chapin, Robert Coit, Beloit A. B. (Beloit) ; Ph. D. ( Columbia). Professor of Economics and Secretary of the Faculty, Beloit College. Daniells, William Willard, Madison M. S., Sc. D. (Michigan Agricultural). Professor Emeritus of Chem¬ istry, University of Wisconsin. Dyke, LeGrand Grandis, Madison Hollister, Albert Henry, Pharmacist. Madison Kimball, Mather Dean, A. B., A. M. (Northwestern). King, Franklin Hiram, D. Sc. (Wisconsin). Madison Koelker, William F., Ph. D. (Berlin). Assistant Professor of Organic Chemistry, University of Wisconsin. 1390 Wisconsin Academy of Sciences , Arts, and Letters. Peckham, George Williams, Milwaukee LL. D. (Wisconsin). Librarian, Milwaukee Public Library. Pereles, James Madison, Milwaukee LL. B. (Wisconsin). Lawyer; President, Milwaukee Public Library; Chairman, Wisconsin Free Library Commission. Pereles, Thomas Jefferson, Milwaukee LL. B. (Wisconsin). Mitchell, Irving N., Milwaukee Ph. B. (Michigan). Professor of Biology, State Normal School, Mil¬ waukee. Thwaites, Reuben Gold, Madison LL. D. (Wisconsin) ; Secretary and Superintendent, State Histori¬ cal Society of Wisconsin; Vice-Chairman, Wisconsin Free Library Commission ; Secretary and Editor, Wisconsin History Commission ; Member, American Li¬ brary Institute ; Councellor, Ameri¬ can Library Association. Uihlein, August, Milwaukee President, Second Ward Savings Bank ; Secretary, Joseph Schlitz Brew¬ ing Company. Vogel, Guido Charles, Milwaukee Whitman, Charles Otes, Chicago A. B., A. M., (Bowdoin), Ph. D. (Leipzig), LL. D. (Nebraska). Head Professor of Zoology, University of Chicago. Proceedings. 1391 PROCEEDINGS OF THE ACADEMY. THIRTY-SEVENTH ANNUAL MEETING. The meetings of the Academy for the presentation of papers, excepting that of the afternoon of the first day, were held at Madison, Wisconsin, February 7-8, 1907, in the Lecture Room of the Historical Library building. The meeting of Thursday afternoon was held in the physics lecture room in Science Hall. The following program was carried out, except for some changes in the order of presentation of papers: Thursday, February 7th. Morning Session, 9:00 o'clock. Reports of officers and committees, and general business. Reading of papers. 1. The electrolytic production of iodoform. Arden R. Johnson. 2. The action of chlorosubstituted esters on amines and aminoes- ters. (By title). W. F. Koelker. 3. On the addition of acetic acid to pinene and limonene. E. Kre- mers and A. Sievers. 4. On the rate of solution of sublimed sulphur in milk of lime. E. Kremers and S. M. Sorley. 6. The optical rotatory power of very dilute solutions. Frederick L. Shinn. 6. A case of separation of colloids from each other by dialysis. Louis Kahlenberg. 7. On the estimation of boric acid in urine. Louis Kahlenberg. 8. On the suspension of solids in fluids, and the nature of colloids and solutions. F. H. King. 9. On the formation and coagulation of colloidal solutions of the metals. (Preliminary communication.) Louis Kahlenberg and Simon G. Engle. 10. A new method for the separation of the chloride of lithium from the chlorides of the alkalies. Louis Kahlenberg and Francis C. Krauskopf. 11. The relation between the processes of solution and chemical ac¬ tion. An outline of a new theory of solutions. Louis Kahlen¬ berg. 1392 Wisconsin Academy of Sciences , Arts , and Letters. Afternoon Session, 2 : 30 o'clock. Reading of papers. 12. Some high temperature measurements. C. E. Mendenhall and and L. R. Ingersoll. 13. Note on some curious high temperature phenomena. C. E. Men¬ denhall and L. R. Ingersoll. 14. The alterating current galvanometer. A. Hoyt Taylor. 15. Evidences of sexual reproduction in the slime molds. Edgar W. Olive. 16. Nuclear migrations and cell fusions in the rusts. Edgar W. Olive. 17. The morphology of the spore forms of the rusts. A. H. Christ¬ man. 18. Heredity in the lower fungi. R. A. Harper. 19. Diakinesis in Thalictrum. J. B. Overton. 20. Concerning the organization of the cell in Marsilia. W. G. Mar¬ quette. 2L Cell and nuclear fusions in the promycelial cells of certain smuts. B. F. Luhman. 22. The distribution of grandparental characters in Pisum. (By title). C. E. Allen. 23. Some reactions of the Isopods. A. B. Clawson. 6:30 o'clock. The annual dinner for members of the Academy and their friends. Friday, February 8th. Morning Session, 9:00 o'clock. Business session. Reading of papers. 24. Some remarks on the caddis flies and their larvae. C. T. Vor- hies. 25. A summer resting stage in the development of Cyclops bicuspe- datus. E. A. Birge. 26. On Latona parviremis, a new species of the genus Latona. (By title). E. A. Birge. 27. Some aquatic invertebrates that live under anaerobic conditions. C. Juday. 28. The fish fauna of Lake Pepin. George Wagner. 29. Notes on the whitefishes of Wisconsin. George Wagner. 30. The behavior of Loxophyllum. S. J. Holmes. 31. Amitosis in the Malpighian tubules of the walking stick. W. S. Marshall. Proceedings. 1393 32. A statistical study of the sex-cells of Chrysemys marginata. Ben- net M. Allen. 33. The Permian glaciation and the' distribution of vertebrate ani¬ mals. E. C. Case. 34. Some experiments on automaticity and conductivity of the auri¬ cles of the mammalian heart. Joseph Erlanger and Julian R. Blackman. 35. Manganese — A normal element in the tissues of the fresh water clams, Unio and Anodonta. Harold C. Bradley. 36. The occurrence of hematite implements in Wisconsin. Charles E. Brown. 37. A record of Wisconsin’s aboriginal remains. Charles E. Brown. 38. The man mound near Baraboo. A. B. Stout. 39. The effigies of Wisconsin. Stephen D. Peet. Afternoon Session, 2:30 o'clock. Reading of papers. 40. The resuscitation incident in popular tale, ballad and drama. Arthur Beatty. 41. The relation between folk-tale and ballad, as shown by J. P. Campbell’s “Tales of the West Highlands” and P. J. Child’s “English and Scottish popular ballads.” Arthur Beatty and Jessie V. Seaver. 42. A decree of the honorable and wise council of the city of Nurem¬ berg concerning the prohibition of the great vices of blasphemy, carousing and treating. E. K. J. H. Voss. 43. The neglect of the ancient classics at the early medieval univer¬ sities. Louis J. Paetow. 44. Education in the Philippines; Development and problems. W. H. Shephard. 45. Some effects of a sleet storm in the Ozarks of Missouri, Novem¬ ber, 1906. (By title). E. R. Buckley. 46. Peculiar local deposits on bluffs adjacent to the Mississippi. G. H. Squier. 47. Some new Wisconsin minerals. (By title),. S. Wiedman. 48. The pre-glacial course of the Red Cedar river. E. B. Hall. 49. The co-operative state and federal water power survey of Wiscon¬ sin rivers. Leonard S. Smith. 60. Cold waves of south-central Wisconsin. James L. Bartlett. A detailed account of the sessions is herewith given : 1394 Wisconsin Academy of Sciences , Arts , and Letters. Thursday, February 7. Morning Session. The meeting was called to order by President Kahlenberg. The read¬ ing of the minutes of the previous meeting was dispensed with. The treasurer’s report was read by Mr. Denniston. Upon motion of Mr. Davis, it was voted that an auditing committee be appointed by the president. Such a committee, consisting of Mr. Davis and Mr. King, was appointed. The secretary’s report was read. The report of the membership committee was read by the secretary. In accordance with the report of the committee, and upon motion of Mr. Kremers, the secretary was instructed to cast the ballot of the Academy for the following named persons as members of the Academy: Ruth Florence Allen . Madison Emil G. Arzberger . Madison Arthur Beatty . Madison Simon A. Blackmore . Chicago, Ill. Harold C. Bradley . Madison Adolph R. Braun . Milwaukee Edward Everts Browne . Waupaca Charles Thomas Brues . Milwaukee Henry Andrew Buehler . Rolla, Mo. Earle Smead Burnett . Madison Victor Coffin . Madison Walter Fenno Dearborn . Madison A. L. P. Dennis . Madison Robert Elkin Neil Dodge . Madison Linnaeus Wayland Dowling . Madison Edmund Pendleton Randolph Duval . ..Madison Joseph Erlanger . Madison Marshall Blakemore Evans . Madison Louis Falge . Reedsville Carl Russell Fish . . . Madison Lucy M. Gay . Madison Edward M. Gilbert . Madison Henry N. Goddard . Waukesha Felicie M. Haberstich . Milwaukee Martin Henry Haertel . Madison William Otis Hotchkiss . Madison Edgar Burton Hutchins, Jr . Waukesha Ashutosh Jana . Birulia, India Arden Richard Johnson . Madison James Lloyd Jones . Hillside William Henry Lighty . Madison Herman William March . Madison Andrew Fridley McLeod . Madison Proceedings. 1395 William Metzdorf . . .St. Francis Seth Enoch Moody . Madison William Jonathan Neidig . Madison John Myers Olin . Madison Daniel Henry Otis . Madison Louis J. Paetow . Madison David Leslie Patterson . Madison Otto Patzer . Madison Arthur Peabody . Madison William David Pence . Madison Eduard Prokosch . Madison Frederick William Roe . Madison Augustin F. Schinner . Superior Paul A. Seifert . Gotham Helen Sherman . Milwaukee Edwin Raymond Smith . Madison George Hull Squier . Trempealeau Arlow Burdette Stout . . Baraboo Albert Hoyt Taylor . . . .Madison Ellen Torelle . Milwaukee Abram Ray Tyler . Beloit Oliver P. Watts . Madison George A. West . Milwaukee Mr. Wagner read the report of the exchange committee. Upon mo¬ tion of Mr. Davis, it was voted that the report be accepted, the commit¬ tee continued, and that there be placed at the committee’s disposal such sum of money as the council may find it advisable to appropriate for such purpose. Upon motion of Mr. Davis, the librarian was made an additional mem¬ ber of the exchange committee. The following proposed amendment to the constitution, which had been proposed by five members, and notice of which had been sent to all members of the Academy more than one month before the present meet¬ ing, was then read by the secretary: “Article III, Section 4, is hereby amended by inserting the words “or the council” after the word “Academy” in the first line of said section, so that this section when amended shall read as follows : ‘Active members shall be elected by the Academy or the council and shall enter upon membership on the payment of an initiation fee of two dollars which shall include the first annual assessment of one dollar. The annual assessment shall be omitted for the president, secretary, treasurer, and librarian during their term of office.’ ” After some discussion, the amendment was adopted by unanimous vote of the members present. The reading of papers was then taken up. During the reading by Mr. Kahlenberg of papers numbers 6, 7 and 11, the chair was occupied by Mr. Davis. 1396 Wisconsin Academy of Sciences , Arts,, and Letters. Afternoon Session. The meeting was called to order by President Kahlenberg. The whole of the session was devoted to the reading and discussion of papers. Thursday Evening. The annual dinner, given by the local members of the Academy, com¬ plimentary to the visiting members and guests, was held at the Madison Woman’s Club building. Thirty-six persons were present, of whom ten were from out of town. After the dinner, President Kahlenberg acting as toastmaster, short talks were given by Messrs. W. W. Daniells, E. B. Hutchins, E. A. Birge, R. A Harper, and E. B. Skinner, and Miss Lutie Stearns. Friday, February 8. Morning Session. The meeting was called to order by President Kahlenberg, and the reading of papers was at once taken up. Paper number 38 was read by the secretary in the absence of the author. Dr. Davis presented the report of the auditing committee, who had examined the accounts and vouchers of the treasurer and had found his report correct. The reports of the treasurer and of the committee were received and placed on file. Afternoon Session. The meeting was called to order by President Kahlenberg. A supplementary report of the membership committee was read by the secretary. In accordance with this report, and upon motion of B. M. Allen, the secretary was instructed to cast the ballot of the Academy for the following named persons as members of the Academy: Katherine Bones . Genoa Junction T. E. Brittingham . . Madison Adolph Finkler . Milwaukee Eugene Allen Gilmore. . Madison Edward B. Hall . Madison John Louis Kind . Madison Jonathan Risser . Beloit William Henry Shephard . . . Madison The reading of papers was then resumed, and the program was com¬ pleted, paper number 39 being read by the secretary in the absence of the author. The meeting then adjourned. C. E. Allen, Secretary. Proceedings. 1397 REPORT OF THE SECRETARY, FEBRUARY 7, 1907. To the Council of the Academy : — The secretary begs to submit the following report for the year 1906 : At the last meeting of the Academy the number of honorary members reported was 6; of life members 12; of active members 189; and of cor¬ responding members 43. During the year one honorary member died. One life member whose name was included in last year’s list has died, and two life members were elected at the last meeting; the present num¬ ber of life members is therefore 13. Of the active members, two have died during the year, one had died previously, notice of whose death had not come to the secretary, seven have resigned or been dropped for non-payment of dues; and three were transferred to the corresponding membership list, and two to the life membership list, making a total loss of 15. Of the persons elected to membership in December 1904, who had not qualified previous to the last meeting, six have since quali¬ fied; and of the 31 elected a year ago, 9 have qualified; one name has been transferred from the corresponding to the active list; the net gain in number of active members during the year therefore is 21, and the present number 210. Of the 43 corresponding membes, one died during 1904 whose death had not been reported to the secretary; one has been transferred to the active list, and two have resigned; three names were added to the list by vote of the Academy at its last meeting, so that there has been a net loss of one. Summarizing, the membership list stands at present: Honorary members . 5 Life members . 13 Active members . 210 Corresponding members . 42 Total . 270 The deaths of the following members have occurred since the last meeting, or if they occurred earlier have not been previously reported: Nathaniel Southgate Shaler, professor of geology in Harvard Univer¬ sity and dean of the Lawrence Scientific School, an honorary member of the Academy from its earliest years, who died at his home in Cam¬ bridge, Mass., April 10, 1906. Amos Arnold Knowlton, for many years a member of the faculty of the English department in the University of Wisconsin and an active member of the Academy since December 30, 1890, who died at Madison, April 14, 1906. Herman Frederick Lueders, a teacher and a man of keen aptitude for scientific research, whose activities in his chosen field were sorely ham¬ pered by ill health, a member of the Academy since December 27, 1893, who died at Sauk City July 2, 1904. 1398 Wisconsin Academy of Sciences, Arts, and Letters. Charles Frederick A. Zimmerman, principal of the seventeenth dis¬ trict school, Milwaukee, a member of the Academy since June 6, 1895, who died at his home June 20, 1906. Edmund Andrews, physician and professor of clinical surgery in Northwestern University, a corresponding member of the Academy since 1875 or 1876, who died at his home in Chicago, January — , 1904. Memorial sketches of these deceased members will appear in the forthcoming second part of Volume XV of the Transactions. Since the last meeting, Volume XV, Part 1, of the Transactions has been published. This part contains twelve articles, occupying 272 pages, and illustrated by eight plates and seven text figures. Part 2 of Volume XV is now in the hands of the printers. In the printing of this half volume the same vexatious delays on the part of the state printer have obtained that have been experienced in past years. The time required for printing has been made somewhat greater by the in¬ creased amount of material included in this half volume, but this fur¬ nishes no satisfactory excuse for the printer’s delay. Two years ago, the secretary was authorized to have the volumes of the Transactions printed in smaller parts, of about one hundred pages each. Circumstances connected with the publication of Volume XV made it seem impracticable at that time to put the new plan into practice. The secretary is of the opinion that the adoption of this method of printing will do something toward obviating the present annoying delays, and unless unforeseen obstacles present themselves the plan will be put into effect in the publication of Volume XVI. With the present income of the Academy, it will be possible to add at least one hundred dollars each year to the permanent fund, and also to appropriate a considerable amount for the extension of the library. The only apparent way in which the income of the Academy can be materially increased is by the extension of its active membership. To this end a canvass has been undertaken among those citizens of the state who might be supposed to be interested in the work of the Acad¬ emy, with the gratifying result that a larger number of applications for election to membership are to be presented at this than at any previous meeting. It is intended to continue this canvass during the coming year. An amendment to the constitution is to be voted on at this meeting, which, if adopted, will authorize the council to elect persons to membership in the Academy in the interim between the annual meet¬ ings. The proposed change is in line with the practice of many similar societies, and would make possible a canvass for new members through¬ out the year, instead of practically confining it, as at present, to the few weeks immediately preceding the annual meeting. Respectfully submitted, C. E. Allen, Secretary. Proceedings. 1399 REPORT OF THE SECRETARY, FEBRUARY 14, 1908. To the Wisconsin Academy of Sciences , Arts , and Letters: — Your secretary begs to submit the following report : — At the last annual meeting, the number of members of the Academy was: Honorary . 5 Life . 13 Active . 210 Corresponding . 42 Total . 270 At the last meeting, 64 persons were elected to active membership and two have since been elected by the council. Of the 66 persons so elected, 58 have qualified by the payment of the initiation fee. During the year, one corresponding member and four active members have died. There has thus been a net gain of 54 active members and a loss of one in the corresponding list, making the present membership: — Honorary . 5 Life . 13 Active . 264 Corresponding . 41 Total . 323 During the past year, the Academy has suffered the loss by death of the following five members: Rufus H. Halsey, president of the State Normal School at Oshkosh, any active member of the Academy since December 28, 1900, who died July 25, 1907, at Gogebic, Michigan. Katherine Herkimer Bones, principal of the Genoa Junction High School, elected to membership in the Academy February 8, 1907, who died at her home in Racine, September 7, 1907. Augustus J. Rogers, principal of the Milwaukee South Division High School and for many years a prominent educator of the state, an active member of the Academy since December 30, 1884, who died at his home in Milwaukee, November 2, 1907. James Lloyd Jones, a member of the Board of Regents of the Univer* sity of Wisconsin, elected to membership in the Academy February 7, 1907, who died at his home at Hillside, November 22, 1907. William Kerr Higley, secretary of the Chicago Academy of Sciences, and Editor of Birds and Nature, elected to membership in the Academy December 28, 1881, and a corresponding member since 1892, who died at Chicago, January 12, 1908. 1400 Wisconsin Academy of Sciences , Arts , and Letters . As in the past, the state printer has caused great delay in the publi¬ cation of the Transactions, the situation having been made somewhat worse than usual by the exceptionally long session of the legislature of 1907. The printing and binding of Part 2 of Volume XV have just been completed, and this part will be distributed in the immediate future. This half-volume consists of 762 pages, and contains 29 arti¬ cles, besides miscellaneous matter, accompanied by 52 plates and other illustrations. Following the plan discussed in the secretary’s report of a year ago, a start has been made, beginning with Volume XVI, in the matter of publishing the Transactions in smaller and more numerous parts. Part 1 and most of Part 2 of Volume XVI are now in type, and material is in the secretary’s hands sufficient for two or three additional parts. It is hoped that the new method will to some extent alleviate the inconvenience of the delays in printing which, under the present system of state printing, can probably never be entirely done away with. In conclusion, the secretary begs to submit his resignation, and re¬ quests that a successor be elected at this meeting. Respectfully submitted, C. E. Allen. TREASURER’S REPORT. f RECEIPTS. Balance in treasury January 1, 1906 . $113.47 Received for ann.'al dues January 1, 1906-December 31 . 203.00 Received for Transactions sold . 5.50 Received for extra separates and plates . 13.42 Interest on 15 bonds at 6% . 90.00 2 bonds matured and paid . 200.00 Interest on same . 12.00 Total receipts for 1906 . . . $637.39 DISBURSEMENTS. Postage for treasurer (3) (12) . $8.00 Paid to Geo. Wagner (for library) Vouchers (1) (8) (10) . 64.43 Clerical services (Mailing Trans.) (11) . 18.50 Rental Safety deposit box (2) . 3.00 Secretary (expenses) 1906 (15) . 75.00 Stationery, printing and engraving Tracy, Gibbs & Co. (4) (5) (6) (14)...... . 28.00 Parsons Prtg. Co. (7) (9) (17) (18) . 19.25 Capital City Paper Co. (13) . 7.35 Democrat Prtg. Co. (19) . . . . . ... 6.25 Mandel Engraving Co. (20) . .75 Rogers & Co. (21) . 3.65 Proceedings . 1401 Madison City Street Imp. bonds purchased No. 31 Prospect Ave. due 1914 . 107.00 No. 32 Prospect Ave. due 1914 . 107.00 No. 33 Prospect Ave. due 1915 . 108.00 Total disbursements 1906 . $556.18 556.18 Balance in treasury January 1, 1907 . $81.21 SUPPLEMENTARY REPORT. Jan. 1, 1907-Feb. 6 inclusive. Receipts. Balance on hand Jan. 1, 1907 . $81.21 Transactions sold . 1.00 Annual dues . 5.00 New members . 30.00 Separates . 5.25 $122.46 Disbubsements. Paid to Geo. Wagner (library) . $54.87 Paid to Heliotype Prtg. Co. — draft . 4.55 - 59.42 Balance on hand Feb. 6, 1907 . $63.04 There is now invested $1,800.00 by the Wisconsin Academy of Science, Arts and Letters in a permanent fund. The investment is in the form of 18 $100 street improvement bonds which bear 6% interest. These bonds are deposited in a safety deposit box rented by the Academy of Sciences, Arts and Letters in the Bank of Wisconsin. R. H. Denniston, Treasurer. REPORT OF AUDITING COMMITTEE. February 7, 1907. To the Wisconsin Academy of Sciences, Arts and Letters — Your auditing committee reports that it has examined the books and vouchers of the Treasurer and finds that his report corresponds fully therewith. J. J. Davis, F. H. King, Auditing Committee. Your auditing committee would also report that one of its members inspected the Academy box in the vaults of the Bank of Wisconsin, and found therein eighteen Madison improvement bonds of the par value of one hundred dollars each as called for by the Report of the Treasurer. 1402 Wisconsin Academy of Sciences, Arts, and Letters. REPORTS OF COMMITTEES ON EXCHANGES. Madison, Wis., February 1, 1907. To the Wisconsin Academy of Sciences 9 Arts and Letters: Your Committee on Exchanges hereby submits the report of its work during the past year. During this period we have ap¬ plied our energies to the following tasks : 1. The securing from exchanging societies of such of their earlier publications as are not on our shelves. This has been, and must be for several years to come, the chief work of such a committee as this. During the past year, or since our last report, there have been thus re¬ ceived : 629 volumes 200 parts of volumes. With these, 7 different sets of publications, previously incomplete, were made complete; and 13 volumes were supplied with all missing parts. It is to be understood that the above numbers include no ma¬ terial for which money, outside of transportation or custom house charges, was paid by the Academy. 2. The arrangement of exchanges with Societies not now on our list. Thirty-five such societies were added during the past year. 3. The purchase of such volumes or parts as are not otherwise ob¬ tainable. For this purpose your Academy allotted at its last meeting, two hundred dollars, or so much thereof as the finances of the Academy wmuld permit. This committee has actually spent during the year $119.30 of the funds of the Academy. Besides this the Chairman of the Committee has had at his disposal, from outside sources he is not at liberty to dis¬ close, $40, and a similar sum will be available the coming year. The expenditures include postage, custom house and transportation charges, and the cost of books purchased. Nothing was expended for clerical work. We ordinarly purchased such material only as was offered at bargain price, usually paying for bound volumes not more than the cost of the binding. Only in several cases where single volumes or numbers were needed to complete sets, were higher prices paid. We have not thought it necessary to enumerate all the purchases made. Among the principal ones were: 26 vols. Monatsberichte der k. preussischen Akademie. 9 vols. Gesellschaft Naturforschender Freunde. 1 vol. Transactions New Zealand Institute. 1 vol. Archives Neerlandaise des Sciences Exactes et Naturelles. 5 vol. Verhandlungen der k. k. Zoologisch botanischen Gessellschaft. Many parts of the publications of the Agassiz Museum. This valu¬ able set was presented by Mr. Agassiz, and is one of the most import* ant we possess. The missing parts appear only rarely in the market. Proceedings . 1403 It is hoped that the Academy will sanction further expenditure in this direction. Among the sets which we hope to complete this com¬ ing year are: Publications of the K. Sachsische Gesellschaft der Wissenschaften. Proceedings of the Royal Society, London. Zeitschrift der Deutschen Geologischen Gesellschaft. Academy at Amsterdam. Besides this there should also be purchased various single numbers to complete volumes for binding. 4. Arrangements of exchange material with the other Libraries cen¬ tered around the University, to such an extent as may be mutually bene¬ ficial. Such arrangements now exist with the General Library of the University and with the Historical Society. We hope to be able before long to renew certain negotiations with the Astronomical Library, opened nearly two years ago, but dropped through lack of time. In this part of the work we have been guided by these principles: a. The libraries housed here, form, for all purposes of their patrons, an organic whole; therefore, as a matter of economy of time, money, and space, duplication should in general be avoided. b. Where partial sets of a given serial exist in different libraries, they should be brought together in one, and duplications eliminated; this not only as a matter of economy, but out of consideration to users of the libraries, as well as to employes. c. The duty and privilege of our Academy, in this syndicate, is to ac¬ cumulate as complete collections as possible of the serial publications of scientific societies, both great and small. In general it shall turn purely historical publications over the Historical Society. University publications, including dissertations, are the proper charge of the Uni¬ versity. Purely astronomical material belongs to the Observatory; the publications of Agricultural Experiment Stations belong in the Agricul¬ tural Library. Great advantage will accrue to the Academy by these arrangements the carrying out of which has only just begun. That the principles above cannot always be fully lived up to, depends entirely on the pov¬ erty of the Academy. 5. Disposing of the duplicates and separata in the Academy’s collec¬ tion. Little progress has been made here. It is intended to go over all our duplicates, including those derived from the Geol. & Nat. History Survey, carefully, to pick out all of which the retention in one library or another may be desirable. The rest we hope to offer for sale to such specialists as may have use for them. 6. Incorporating exchanges received by the Geological and Natural History Survey into the Academy Library. This work is now up to date. Apart from its regular work the committee desires to acknowledge certain gifts to the Academy: From Professor Chandler, a number of volumes of the Boston Journal of Chemistry. From Professor W. S. Marshall: 12 nos. Allgemeine Zeitschrift fur Entomologie. 4 vols. Insektenbrose. 1404 Wisconsin Academy of Sciences , Arts, and Letters. This committee makes the following recommendations to the Aca¬ demy : 1. That this committee be continued for another year, and that the Librarian be added to it to replace Professor Hobbs. 2. That the Academy sanction the expenditure of such a sum in its work during the coming year, as may seem proper to the Council. Finally, this committee desires to acknowledge great indebtedness to the University Librarian, for his readiness at all time to cooperate with us. Respectfully submitted, Edward Kremebs, George Wagner. REPORT OF THE COMMITTEE ON EXCHANGES. February, 10, 1908. To the Wisconsin Academy of Sciences , Arts and Letters: The undersigned committee on exchanges desires to submit its third annual report. The primary function of the committee is to secure exchanges with societies not previously on our list, and to obtain missing parts of series already on our shelves. The re¬ sult of this work during the past year has been as follows : New exchanges secured . 14 Missing volumes secured . 290 Missing parts secured . . . . . . 409 Sets of serials made complete . 10 Volumes made complete . 56 These figures cover only the cases where material was obtained by solicitation from the publishing societies. The receipt of 85 volume® and 230 parts (completing 35 more volumes) is noteworthy. In certain other cases it was necessary to purchase volumes or parts to complete our sets. Our previous policy of purchasing only real bar¬ gains, has been continued. Funds from these sources were available: a. Allowed by executive committee from funds of the Academy as per Academy resolution . $144.11 b. Sale of duplicates of Academy collection . 22.00 c. Donated, by unnamed person, through chairman of the committee . . . . . 40.00 From the two sums emanating from the Academy were paid postage to the extent of $7.50, letter files, 75c, and custom house charges, $4.35. The remainder was spent on volumes or parts needed, of the publicar tions of the following: Proceedings . 1405 California Academy of Sciences, K. Sachsische Akademie, Zeitschrift fur Naturwissenschaften, Naturhistorische Gesellschaft der Rheinlande, Deutsche Geologische Gesellschaft, K. Preussische Akademie, Queekett Microscopical Club, Australasian Association for the Advancement of Science, Musee Teyler, Museum of Comparative Zoology, K. Akademie van Wetenschappen, Amsterdam, and Academy of Natural Sciences at Philadelphia. The last item was purchased an exceptional bargain at $60, to be paid for next year. But the volumes of the K. Sachsische Akademie, and the Deutsche Geologische Gesellschaft (outside of those mentioned above), announced in our last report as on the purchasing program, have been delayed in shipment, and payment for them was therefore postponed to the next fiscal year, and the above vols. from Philadelphia included in this year’s accounts. The above purchases have enabled us to complete our sets of the Journal of the Queekett Microscopical Society, of the Proceedings of the Philadelphia Academy, of the publications of the Amsterdam Acad¬ emy (except Latin prize poems), and of the Archives du Musee Teyler and to bring the sets of the Naturhistorische Gesellschaft at Bonn, and of the Australasian Association for the Advancement of Science within one volume of completion. The proceedings of the K. Preussische Aka¬ demie we have now complete from 1866. From the $40 donated were paid 95c for custom house charges. The remainder went for parts of the publications of the Agassiz Museum, The Condor, the Zoological Museum of the University of Naples, the Queekett Microscopical Club, the Finska Vetenskaps Societet, and cer¬ tain minor publications. Four sets were thus completed, namely The Condor, Pacific Coast Avifauna, Annuario of the Zoological Museum at Naples, and the Zoologischer Garten. We have been able, also, to secure 45 vols. and 55 parts by exchanging some of our duplicate material with the Library of Congress. Another duty of this committee has been to correlate the Academy collections with those of the University and the Historical Society. The hearty cooperation of the librarians of these two institutions has made this work a pleasant and a profitable one. As a result many of our previously rather fragmentary sets have been made fairly complete, and we have further been able to remove from our shelves material much more appropriate elsewhere. All these activities should be pursued further. The committee there¬ fore begs to move: That the exchange committee be continued for another year, and that it be allowed for its work such sum as the executive committee may deem wise, and that it further be allowed such sums as may be realized from the sale of duplicates in the Academy collections. Respectfully submitted, The Committee on Exchanges, George Wagner, W. M. Smith, Edward Kbemers. 1406 Wisconsin Academy of Sciences, Arts, and Letters. MEETINGS OF THE COUNCIL, February 1, 1905. Present: Davis, Van Hise, Birge, Skinner. Mr. Birge was appointed delegate to the meeting of the Land¬ marks Committee of the Wisconsin Federation of Women’s Clubs. Voted, that the exchange committee be requested to prepare a list of things desired before expending further funds. The secretary was authorized to offer to prospective members to supply two back volumes of the Transactions to those who may pay dues at the present time. It was proposed by the librarian and secretary to discontinue sending copies of the Transactions to certain persons on the list of corresponding members except upon their request. This proposition was approved. E. B. Skinner, Secretary. November 13, 1906. Present : Kahlenberg, Denniston, Birge, Slichter, Allen. The question of the time and place for the holding of the next annual meeting was discussed. Letters on this subject were read from E. C. Case, G. W. Peckham, C. H. Chandler, and J. J. Davis. Voted, that the meeting be held at Madison in February, 1907, at the time of the meetings of the agricultural and other societies of the state. The secretary was instructed to send out notices of a proposed amendment to the constitution authorizing the council to elect members of the Academy at any time during the year except dur¬ ing a meeting of the Academy. C. E. Allen, Secretary. May 28, 1907. Present: Kahlenberg, Denniston, Wagner, Allen. William Finger, Milwaukee, and Albert D. Whealdon, Su¬ perior, were elected active members. The application of Arthur M. Edwards, Newark, N. J., for corresponding membership, was left for further consideration. Proceedings. 1407 The president reported the receipt of an invitation to be rep¬ resented by delegate at Bologna, Italy, June 12-13. He had re¬ sponded that it would be impossible to be represented. The secretary reported the receipt of an invitation to be rep¬ resented by delegate at a bicentennial celebration of the birth of Linnaeus, under the auspices of the New York Academy of Sciences, May 23. He had responded that it would be impos¬ sible to be represented. The secretary reported the receipt of an invitation to be rep¬ resented by delegate at the 7th International Zoological Con¬ gress in Boston, August 19-23. Mr. W. S. Marshall was ap¬ pointed delegate, with authority to select an alternate in case he could not attend the meeting. The treasurer reported upon the financial condition of the Academy. Mr. Wagner reported upon the work being done toward the extension of the library. One hundred and twenty-five dollars was appropriated for the work of the exchange committee. Five dollars was appropriated as a contribution toward the fund being raised by the Wisconsin Archaeological Society for the purchase of the Baraboo man mound. C. E. Allen, Secretary. January 3, 1908. Present: Kahlenberg, Denniston, Allen. An application of Arthur M. Edwards, of Newark, N. J., for corresponding membership, was presented and referred to Dr. J. J. Davis. Plans for the next annual meeting were discussed. The resignation of E. C. Case as vice-president was presented. The secretary was instructed to notify Mr. Case that his resig¬ nation is not accepted. C. E. Allen, Secretary. 1408 Wisconsin Academy of Sciences, Arts, and Letters. FORTY-FIRST ANNUAL MEETING The meeting was held in conjunction with the Wisconsin Archeological Society, the Wisconsin Mycological Society, and the Wisconsin Natural History Society, in Madison, February 16 and 17, 1911. The sessions were held in the Lecture Room of the State His¬ torical Society. The following program was presented, Presi¬ dent Plantz in the chair: Thursday, February 16. Morning Session, 10:00 o'clock. Preliminary., Business. Presentation of Papers. 1. The Relation between Area and Temperature of Lakes. Ed¬ ward A. Birge. Twenty minutes. 2. On Lepisosteus sinensis, Bleeker. George Wagner. Five min¬ utes. 3. On the Whitefish of Green Lake. George Wagner. Five minutes. 4. A Trematode Parasite of the English Sparrow in the United States. Leon J. Cole. Ten minutes. 5. Apparent Mutations in the Meadow Vole ( Microtus pennsyl- vanicus. Leon J. Cole and George Wagner. Ten minutes. 6. The Nests and Larvae of Necturus. B. G. Smith. Ten minutes. 7. Pholiotas of the Region of the Great Lakes. Edward T. Harper. (By title.) 8. The Effect of Poisons on Sap Flow. J. B. Overton. Ten min¬ utes. 9. The Structure and Cell Development of the Root Tip of a Sedge. A. B. Stout. Ten minutes. 10. Temperature in Relation to Infection with Certain Downy Mil¬ dews. I. E. Melhus. Fifteen minutes. 11. Nuclear Phenomena in the Tremellineae. E. M. Gilbert. Ten minutes. 12. The Structure and Development of Collema crispa. Freda M. Bachman. Ten minutes. 13. The Structure of the Central Body in the Trout. W. G. Mar¬ quette. Fifteen minutes. 14. The Cilia-forming Organ of Motile Plant Cells. C. E. Allen. Ten minutes. 15. Studies on Some Lakes in Central America. Cbancey Juday. Ten minutes. Proceedings. 1409 Afternoon Session, 2:00 o'clock. Presentation of Papers. 16. Socrates and tlie Greek Gods. William Ellery Leonard. Twenty-five minutes. 17. A Dramatic Office for the Feast of the Presentation. Karl Young. Fifteen minutes. 18. Browning’s Idealism. J. W. Cunliffe. Thirty minutes. 19. Some Tendencies of Seventeenth Century Autobiography. E. H. Gardner. Twenty minutes. 20. The Purpose of the Book of Ruth. Louis B. Wolfenson. Twenty minutes. 21. The Last Will and Testament as a Form of Literature. Eber Carle Perrow. Fifteen minutes. 22. Tennyson and Unitarianism. Margaret Ashmun. Twenty minutes. 23. The Dream Dance of the Chippewa and Menominee Indians of Wisconsin. Samuel A. Barrett. With lantern slide illustra¬ tions. (In Room 112, University Hall, at 4:30 o’clock.) Evening, at 6:30 o'clock. A dinner to the visiting members was served to the visiting mem¬ bers. The Centenary of Increase A. Lapham was commemorated. A very pleasant feature of the occasion was the presence of Mr. Lapham’s daughter and son, Miss Julia Lapham, and Mr. Charles Lapham. Friday, February 17. Morning Session, 9 o'clock. 24. Public Libraries and Literary Culture in Ancient Rome (Early Empire). Clarence E. Boyd. Twenty minutes. To be read by M. S. Slaughter. 26. The Cost of Living in the Twelfth Century. D. C. Munro. Twenty minutes. 26. The Railways of the Old Northwest before the Civil War. Frederic L. Paxson. Twenty minutes. 27. Fulk of Neuilly. Milton R. Gutsch. (By title). 28. The Censorship under the First Empire. Victor Coffin. (By title). 29. On a Certain Caution to be Observed in the Hunting of Sources and Parallels. R. E. N. Dodge. Twenty minutes. 30. The Musical Elements of French Versification. Mathurin M. Dondo. Twenty minutes. 31. The Regulations of the University of Wittenberg, issued in the year 1546, regarding the dress of the Professors, their Wives, and the Student Body; also Restrictions in regard to the Wearing of Jewelry, the Cost of Weddings, Betrothals, Bap- tismals, and other Festivities. Ernst Voss. Fifteen minutes. 1410 Wisconsin Academy of Sciences , Arts, and Letters. 32. On a Recently Recovered Version of the American Ballad, Fair Charlotte. Arthur Beatty. Five minutes. 33. Recent Progress in Physics. E. C. Mendenhall. Twenty-five minutes. 34. The Mythological Concepts of the Cayapa Indians of Ecuador. Samuel A. Barrett. Twenty minutes. 35. Wormwood in Wisconsin. Edward Kremers. Ten minutes. 36. Recent Work in Securing the Preservation and Marking of In¬ dian Earthworks about Madison. Charles E. Brown. Ten minutes. 37. The Silver Trade Crosses of Wisconsin. Charles E. Brown. (By title.) 38. The Need of Proper State Protection for the Prehistoric and Historic Indian Remains Located upon the Public Lands, Re¬ serves, Parks, and other Public Places in the State. H. T. Field. (By title.) 39. The Discussion of Some Formulas Used in Depreciation Prob¬ lems. E. B. Skinner. Twenty minutes. Afternoon Session, 2:00 o'clock. 40. On Certain Instincts in the Larvae of Some Parasitic Bees. Sigmund Graenicher. Fifteen minutes. 41 Psychological Study of the Common Black Ant ( F . subsericea); proving that in a Maze an Ant will take the straightest Course. A. C. Burrill. (By title.) 42. Aeshnine Wing Venation (Odonata) . Richard A. Muttkowski. (By title.) 43. The Ethical Philosophy of Richard Cumberland. Frank C. Sharp. Thirty minutes. 44. The Psychological Basis and Limitations of Individualism. W. K. Wright. Twenty-five minutes. 45. A Study of Retarded Children in a Group of Northwestern School Systems. Freeman E. Lurton. (By title.) 46. The Glacial Lake of the Fox River Valley and Outlet, and the Diversion of the Wisconsin River. Samuel Weidman. Twen¬ ty minutes. 47. The Chlorin Content of Drinking Water. A. F. Gilman. Twenty minutes. 48. Note on the Synthesis of Esters, (so-called Volatile Oil), in Saw Palmetto Berries. Edward Kremers. Five minutes. 49. An Alkaloidal Derivative from a Volatile Oil Constituent. Nellie Wakeman and Edward Kremers. Five minutes. After the presentation of the papers, Mr. R. H. Denniston, Treasurer of the Academy since 1905, presented his resignation. A committee consisting of Samuel Weidman, D. C. Munro, and Arthur Beatty was appointed by the chair to nominate a successor. The committee nom¬ inated W. G. Marquette, Madison, and the report was adopted. Officers and M embers. 1411 The committee on membership reported the following list of names for membership, which was approved: Clarence E. Boyd . Leon J. Cole . John William Cunliffe Mathurin M. Dondo - Milton R. Gutsch . Edward T. Harper - W. C. Hotchkiss . E. B. Hutchins . . Frederic L. Paxson - Louis E. Reber . Fredrick C. Ruff . Louis B. Wolfenson _ William K. Wright . Tallahassee, Fla. . . Madison . Madison . Madison . Madison . Madison . Madison . Fond du Lac . . . . . Madison . Madison . Appleton . Madison . Madison The Committee on Exchanges presented the following report, which was accepted: REPORT OF THE COMMITTEE ON EXCHANGES. Madison, February 15, 1911. To the Wisconsin Academy of Sciences , Arts, and Letters: The Exchange Committee, first appointed five years ago, herewith presents its report for the past year. Due to many and unavoidable causes its activities have been much less in extent than in previous years. As heretofore our primary work has been to secure missing parts of sets, as well as new exchanges, especially by correspondence with the societies concerned. The result has been as follows: Missing volumes received . 83 Missing parts received . 28 Volumes completed . 2 Sets completed . 5 New exchanges . 5 As heretofore an annual sum of $40.00 has been at the disposal of the Committee, which has expended for similar purposes, with the following result: Volumes purchased . 19 Parts purchased . 5 Sets completed . 4 Of the funds of the Academy $45.00 has been expended since our last report, $3 for postage, the rest for the completion of our set of the Pro¬ ceedings of the Royal Society, London. 1412 Wisconsin Academy of Sciences , Arts, and Letters. The new exchanges are as follows: Statens Skogs-Forsoksanstalt, Stockholm. Revue Scientifique du Bourbonnais. Coiner Akademie fur Praktische Medizin. Kaiserliche Biologische Anstalt fur Land- und Forstwirthschaft. Musee Zoologique, Imperiale des Sciences, St. Petersburg. Probably the most important part of the Committee’s work during the past year has been its activity as an advisory board during the pro¬ cess of cataloguing the Academy library by the staff of the University Library. This work has raised many perplexing questions, most of which we hope to have solved in satisfactory manner. The cataloguing is progressing rapidly, and we hope to see it completed during the en¬ suing year. As heretofore we recommend that this Committee be continued for another year, and that it be allowed for use in its work such amounts from the Academy’s funds as may to the Executive Committee seem wise; and that it be further allowed to use such sums as may be real¬ ized from the sale of duplicate material. Respectfully submitted, George Wagner, Walter M. Smith, Edward Kremers. FORTY-SECOND ANNUAL MEETING. The meeting was held jointly with the Wisconsin Archeologi¬ cal Society, the Wisconsin Mycological Society, and the Wiscon¬ sin Natural History Society, in Madison, on April 4 and 5, 1912. The morning sessions were held in the Lecture Room of the State Historical Library, and the afternoon sessions in Room 42, Science Hall. The following progamme was presented: Thursday, April 4. Morning Session, 10:00 o’clock. D. C. Munro presided, as President Plantz was delayed: Preliminary Business. Presentation of Papers. 1. Efforts to Prevent the Introduction and Dissemination of Inju¬ rious Insects. J. G. Sanders. (By title.) 2. The Oscillations of the Lower Water in Green Lake. E. A. Birge. Twenty minutes. 3. Notes on Lake Michigan Swarms of Chironomids. A. C. BurrilL Ten minutes. Officers and Members. 1413 4. Some Points in the Anatomy of the Four-Spotted Dragon-fly, Li« bellula 4-maculata. William S. Marshall. (By title.) 6. Economic and Biologic Notes on the Giant Midge ( Chironomus plumosus, Meyen.) A. C. Burrill. Twenty minutes. 6. Palmer’s Organ and its Function. J. E. Wodsedalek. Ten min¬ utes. 7. The Behavior of Leucocytes. N. Fasten. Ten minutes. 8. On the Distribution of two Wisconsin Mammals. George Wag¬ ner. Five minutes. 9. The Boreal Life Zone in Wisconsin. Sigmund Graenicher. Fif¬ teen minutes. 10. Doubts and Progress. H. M. Kallen. Twenty minutes. 11. The Lebertia of Wisconsin. Ruth Marshall. (By title.) 12. A Contribution to the Natural History of the Amphipod Hyalellu knickerbockeri (Bate). Hartley H. T. Jackson. (By title). Afternoon Session, 2:00 o'clock. President Samuel Plantz called the meeting to order. 13. The Nuclear Behavior in the Basidium of Auricularia. E. M. Gilbert. Ten minutes. 14. A New Method of Fertilization in Lichens. Freda M. Bachman. Ten minutes. (Illustrated.) 15. A Comparison of Plant and Animal Spermatogenesis. C. E. Allen. Ten minutes. (Illustrated.) 16. The Development of Melanospora. J. B. Overton. Ten minutes. (By title.) 17. A Comparison of the Botany of the Galapagos and Cocos Islands. Alban Stewart. Ten minutes. (Illustrated.) 18. Apogamy, Apospory, and Related Phenomena in the Purple Cliff Brake. W. N. Steil. Ten minutes. (Illustrated.) 19. The Tapetal Cells of Lycopodium Selago and L. Annotinum .. R. H. Denniston. Ten minutes. (Illustrated.) 20. Colony Formation and Development in Certain Coenobic Algae. Gilbert M. Smith. Ten minutes. (Illustrated.) 21. Modern Pottery-Making among the Hopi and Tewa Indians of Northern Arizona. Samuel A. Barrett. Twenty minutes. (Illustrated.) 22. The Niman Katcina of the Hopi Indians. Samuel A. Barrett. Thirty minutes. (Illustrated.) 23. A Provisional List of Parasitic Fungi of Wisconsin. J. J. Davis. (By title.) 24. A preliminary Report on the Hepaticae of the Duluth-Superior Region. George H. Conklin. (By title.) 25. Species of Pholiota and Stropharia in the Region of the Great Lakes. E. T. Harper. (By title.) 1414 Wisconsin Academy of Sciences , Arts , and Letters. Evening Session, 6:30 o'clock. An informal dinner was given to the visiting members of the Societies at the University Club. The retiring President of the Wisconsin Academy of Sciences, Arts, and Letters, President Samuel Plantz, delivered the Triennial Address, Friday, April 5. Morning Session, 9 o'clock. 26. John Thelwall, a Forgotten Revolutionary Poet. Arthur Beatty. Fifteen minutes. 27. Hamann— A German Sidelight on English Literature. H. A. Watt. Fifteen minutes. 28. Hagbard’s Beard (Kormakssage Chapter III.) Lee M. Hollan¬ der. Fifteen minutes. 29. Luther Parker: New Hampshire and Wisconsin Pioneer. Grant Showerman. Twenty minutes. 30. Social Conditions in Southern Bavaria in the Thirteenth Cen¬ tury as shown in Meier Helmbrecht. Martin H. Haertel. Fif¬ teen minutes. (Read by B. Q. Morgan.) 31. The Requirements for the Degrees at the University of Paris in Thirteenth Century. Sumner H. Slichter. Ten minutes. 32. Relations between the Ecclesiastical and the Educational Policy of the First Napoleon. Victor Coffiin. (By title.) 33. A Theological Treatise by Dr. Hunnius on the Question whether it is Permissible to Take Interest on Money Loaned. 1622. Ernst Voss. (By title.) 34. Officium Pastorum: A Study of the Dramatic Development with¬ in the Liturgy of Christmas. Karl Young. (By title.) 35. Some Veridical Relations between Certain Celtic Tales and Cer¬ tain Alleged Experiences. Arthur Beatty and Fritz Kunz. (By title.) At the end of the session, the following business was trans¬ acted : The chair appointed as a committee on the nomination of offi¬ cers for the next three years E. A. Birge (chairman), J. J. Davis, E. B. Skinner, C. E. Allen, and R. H. Denniston. The Exchange Committee made the following report, which was adopted : Madison, April 1, 1912. To the Wisconsin Academy of Sciences, Arts and Letters: Your Exchange Committee herewith presents its sixth annual report. The chief activity of the Committee, this year as last, has been to give aid in various ways during the cataloguing of the Academy Library by Officers and Members. 1415 the University Library staff, and the correlation of our Library with the others in the building. This work is now substantially finished. It in¬ volved many difficult problems, not a little compromise, and much pa¬ tience. We hope, however, that those who have followed its progress or examined its results will see the great improvement in usefulness of all parts of the scientific libraries thus brought together. We owe much to the willingness and skill especially of Miss Coddington and Miss Mc¬ Culloch of the University cataloguing force. The work of securing missing parts and new exchanges has had to take a subordinate place this year. By correspondence with Societies the following have been secured: Missing volumes received . 2 Missing parts received . 3 Volumes completed . 3 Sets completed . 0 New exchanges . . . . . 4 Again a sum of $40.00 has been at our disposal, which was expended, securing 13 volumes and two parts, completing one volume previously incomplete. Of the Academy funds we have expended about $95:00 (the Treas¬ urer’s report will show the exact amount) of which $92.67 was paid for 18 volumes of the Abhandlungen der K. Sachsischen Gesellschaft der Wissenschaften, a great addition to our material. The new exchanges are as follows: ’sRyks Herbarium, Leiden. Svenska Botaniska Forening. Philosophical Society, University of Virginia. Societe d’Histoire Naturelle, Autun. The present relations and condition of our Library make it desirable that the work of the Library Committee and Exchange Committee be consolidated. We therefore recommend: 1. That the Exchange Committee be discharged, and its duties turned over to the Library Committee. 2. That the Library Committee be allowed for use in its work such amounts from the Academy’s funds as may to the Executive Committee seem wise; and that it be given authority to dispose of the duplicates of the Library in such manner as it may deem fit. Respectfully submitted, George Wagner, Walter M. Smith, Edward Kremers. The Treasurer, R. H. Denniston, acting for W. G. Marquette, resigned, presented his report, and the Chairman appointed as an auditing committee T>. C. Munro and George Wagner. 1416 Wisconsin Academy of Sciences , Arts , and Letters. TREASURER’S STATEMENT. 1911 RECEIPTS. Feb. 18, balance . $114.85 Dues . 280.94 Transactions sold . 2.50 Bonds matured . 400.00 Interest on bonds . 124.75 - $923.04 DISBURSEMENTS. 6 City Street Improvement bonds, voucher 2 . $520.00 Stationery and envelopes, vouchers 1, 4, 5, 7, 8, 9. . 30.26 Printing, voucher 3 . 18.50 Secretary’s allowance, voucher 6 . 100.00 Shipping and wrapping Trans., vouchers 10, 12... 28.00 Journals purchased (Wagner), voucher 13 . 92.76 - - 794.52 April 4, 1912, balance on hand . $128.62 R. H. Denniston, Treasurer. Certified correct, D. C. Munro, George Wagner. SECRETARY’S REPORT. The Secretary presented his report, as follows. It was adopted. Members at last report . . . 302 Dropped for non-payment of dues . . . 12 Resigned . 18 Deceased . 10 - - 40 262 New members, 1911 . 13 New members, 1912 . 25 - 38 300 Arthur Beatty, Secretary. Officers and Members. 1417 The Committee on Nominations recommended the following persons for membership in the Academy. The report was adopted. Rufus M. Bagg, 466 Alton St . . . Appleton. Oscar James Campbell, Jr., 205 Prospect Ave.. . Madison. Muriel B. Carr, 616 Lake St . . . Madison. William Hunt Eisenman, Racine College . Racine, Wis. H. W. Griggs, 2421 Sycamore St . Milwaukee, Wis. Michael F. Guyer . Madison. Chester Lloyd Jones, 412 Carroll St . Madison. Eric Rexford Miller, 84 North Hall . . . Madison. Ralph Woodward Owen, 627 Mendota Court . Madison. John J. Pettijohn . Madison. Edward Bunker Schlatter, 1619 Jefferson St . ....Madison. Matthew Lyle Spencer . . . . . Appleton, Wis. Afternoon Session, 2:00 o'clock. The session was presided over by President Plautz. 36. Studies in the Manufacture of Flint Implements. H. L. Skavlem. Ten minutes. 37. Notes on Outagamie County Antiquities. Geo. R. Fox. (By title.) 38. The Grooved Stone Axes of Wisconsin. Charles E. Brown. Ten minutes. 39. The Effect of Off-Shore Deepening on Coast Deposits. Rufus M. Bagg, Jr. Twenty minutes. (Illustrated.) 40. Notes on an Unusual Type of Foraminifera as a Limestone Builder off the Coast of Venezuela. Rufus M. Bagg, Jr. Five minutes. 41. The Former Higher Levels of the Yahara Lakes. Samuel Weid- man. Fifteen minutes. 42. An Italian Drug Store of the Quattrocento. Edward Kremers. Ten minutes. 43. The Use of Potassium Iodide in Studying the History of a Water Supply. Albert F. Gilman. Fifteen minutes. 44. Some Incongruities in Chemical Nomenclature. Andrew F. Mc¬ Leod. Fifteen minutes. 45. A Mechanical Analogy of the Electron. (With a Demonstra¬ tion.) L. R. Ingersoll. Five minutes. 46. On the Bending of the Waves of Wireless Telegraphy around the Earth. H. W. March. Fifteen minutes. 47. The Banner Stone Ceremonials of Wisconsin. Charles E. Brown. (By title.) The Nominating Committee brought in the following report, which was adopted. President, D. C. Mtjnro, Madison. Vice-President of Sciences, I. N. Mitchell, Milwaukee. 1418 Wisconsin Academy of Sciences, Arts, and Letters. Vice-President of Arts, A. C. Clas, Milwaukee. Vice-President of Letters, F. M. Erickson, Ripon. Secretary, Arthur Beatty, Madison. Treasurer, Arthur Beatty, Madison. Curator, C. E. Brown, Madison. Committee on Publication. D. C. Munro, Madison, President (ex-officio.) Arthur Beatty, Madison, Secretary (ex-officio.) C. E. Allen, Madison. Committee on Library. W. M. Smith, Madison, Librarian, (ex-officio.) R. H. Dernehl, Milwaukee. R. G. Thwaites, Madison. George Wagner, Madison. C. A. Youtz, Appleton. Committee on Membership. Arthur Beatty, Madison, Secretary (ex-officio.) H. L. Ward, Milwaukee. A. F. McLeod, Beloit. Helen Sherman, Milwaukee. L. R. Ingersoll, Madison. MEETING OF THE COUNCIL. On April 5 a meeting of the Council was held at which the fol¬ lowing business was transacted. Samuel Plantz was nominated a Life Member of the Academy. R. A. Harper, F. J. Turner, 0. G. Libby, and Edgar W. Olive were made corresponding members. It was moved that the Council he authorized to appropriate for the uses of the Library Committee not more than $100. Carried. It was moved and carried that the allowance for the Secretary and Treasurer be $200. Arthur Beatty, Secretary. Officers and Members. 1419 FORTY-THIRD ANNUAL MEETING The meeting was held jointly with the Wisconsin Archeological Societjr, the Wisconsin Mycological Society, and the Wisconsin Natural History Society, in Milwaukee on March 20 and 21, 1913. The sessions were held in the Public Museum. Thursday, March 20. Afternoon Session, 2:00 o'clock. President D. C. Munro presiding. Forty persons present. In the absence of Secretary Arthur Beatty, Mr. Charles E. Brown was chosen to act as secretary of the joint meetings. Dr. G. G. Davis and Mr. Henry L. Ward we reappointed a committee to audit the treasurer’s accounts. Presentation of Papers. 1. Progress of Archaeological Researches in Wisconsin during 1912. Charles E. Brown. Fifteen minutes. 2. Indian Earthworks and Camp Sites on Turtle Creek, Rock County. Robert H. Becker. By title. 3. The value of Local Collection to Archaeological Study. H. L. Skavlem. Twrenty minutes. 4. An Archaeological Surface Survey of the West Shore of Green Bay in Wisconsin. George R. Fox. By title. 5. Indian Miniature Axes and Celts. H. M. Whelpley. (By title.) 6. An Indian Pipestone Quarry in Barron County. Charles E. Brown. Ten minutes. 7. Archaeological Survey of Trempealeau and Adjoining Counties. George H. Squier. (By title.) 8. Joseph Reynolds and the Diamond Jo Line of Upper Mississippi River Steamers. George Byron Merrick. Ten minutes. 9. The Habits of Fiddler Crabs. A. S. Pearse. Twenty-five min¬ utes. (Illustrated.) 10. A consideration of the Habits of Some Solitary Wasps. George P. Barth. Twenty minutes. 11. On the Structure and Habits of the Larvae of Certain Parasitic Diptera and Hymenoptera. Sigmund Graenicher. Fifteen minutes. 12. American Water-mites of the Genus Oxus. Ruth Marshall. (By title.) 13. An account of some Phototropic and Starvation Experiments on the Museum Pest (Trogoderma tarsale.). E. J. Wodsedalek and R. A. Muttkowski. Fifteen minutes. 14. The Development of the Wings of a Caddis-fly. W. S. Marshall. (By title.) 1420 Wisconsin Academy of Sciences , Arts, and Letters. 15. Mammal Bones of the Los Angeles Brea Beds and their Geologic Relations. Ira M. Buell. Twenty minutes. On the motion of H. L. Ward the following new members were regu¬ larly elected to membership in the Academy. Harley W. Barber. . . George P. Barth _ Welz E. Boren . . M. A. Bussewitz . Muriel B. Carr . Chester Lloyd Jones Frank J. Kelley _ Rachel M. Kelsey _ Louise W. Mears _ Samuel Moore . Alexander Mueller . . V. E. McCaskill . J. J. Pettijohn . E. C. L. C. Roedder. L. L. Ruschhaupt. . . H. A. Watt . W. T. Stephens . R. E. Vaughn. . . Ripon Milwaukee Milwaukee Milwaukee . . .Madison . . .Madison . . . Madison Milwaukee Milwaukee . . .Madison Milwaukee . . Superior . . .Madison . . .Madison Milwaukee . . .Madison Milwaukee . . .Madison Evening Session, 1:00 o'clock. A dinner was given at the Hotel Gilpatrick for members. Closer affiliation between the various scientific societies of the state was dis¬ cussed. Friday, March 21. Morning Session, 9:30 o'clock. The annual reports of the Secretary and Treasurer were read, and the Auditing Committee reported that the accounts of the Treasurer were found correct. TREASURER’S STATEMENT, 1912-1913. To balance on hand April 16, 1912 . $293.52 Total receipts April 16, 1912, to March 17, 1913 . 105.35 398.87 Total expenses . 250.00 Net balance . 148.00 Invested in Madison City Bond . . . 100.00 Cash balance . $48.87 Arthur Beatty, Treasurer. Officers and Members. 1421 Your auditing committee has compared the records of the receipts and expenditures of the Academy since the previous meeting and finds that the Treasurer’s statement is correct. J. J. Davis, Henry L. Ward. Auditing Committee. Milwaukee, March 21, 1913. SECRETARY’S REPORT, 1912-1913. Honorary Members . . 6 Life Members . 12 Active Members . 229 Corresponding Members . 40 287 Deceased, resigned and dropped . 31 New Members . 16 Total . 287 Arthur Beatty, Secretary. It was moved by George P. Barth that a committee consisting of two members of each of the four participating societies be appointed by the president to consider plans for a closer cooperation between Wisconsin scientific societies. Seconded by G. G. Davis. Carried. Moved by Mr. A. S. Pearse that the sum of $20.00 be allowed to the committee by the Academy to cover necessary expenses of postage, type¬ writing and other expenses. Seconded. Carried. The President called Dr. Lewis Sherman, president of the Wisconsin Mycological Society, to the chair. Presentation of Papers. . , 16. The Migration of the Germ Cells in Ameiurus nel)ulosus. Freda M. Bachman. Fifteen minutes. 17. A New Species of Diaptomus. Chancey Juday. (By title.) 18. A List of Fungi from Kewaunee County, Wisconsin. B. 0. Dodge. (By title.) 19. The Effect of Pressure on the Development of the Lateral Roots of Herbaceous Plants. J. B. Overton. Fifteen minutes. 20. Cell Structure and Zoospore Formation in Characium. Gilbert M. Smith. Ten minutes. 21. The Preservation of Green Algae in their Natural Color. Gilbert M. Smith. Ten minutes. 22. Cytology of the Convallariceae. Frederick McAllister. (By title.) 23. Oogenesis in Sphaeroplea annulina. E. M. Gilbert. Ten min¬ utes. 24. Preliminary Report on a Collection of Hepaticae from the Du¬ luth-Superior District. George H. Conklin. (By title.) 1422 Wisconsin Academy of Sciences, Arts, and Letters. 25. An August Survey of the Hydrophytes of Lake Mendota. R. H„ Denniston. (By title.) 26. Notes on Parasitic Fungi of Wisconsin. J. J. Davis. (By title.) 27. Field Record of the Wisconsin Mycological Society for the Season of 1912. W. C. Schier. (By title.) 28. Some Recent Researches on Cellulose. A. F. Gilman. Fifteen minutes. 29. John C. Gilman, Pioneer. A. F. Gilman. (By title.) 30. Wisconsin Mushrooms. Lewis Sherman. Twenty minutes. 31. The Stimulus which Causes the Leaf-Ovipositing Tachinidae to Hatch. Henry H. P. Severin. Five minutes. 32. Insect-Catching Grasses of Hawaii. Henry H. P. Severin. Five minutes. 33. The Behavior of the Mediterranean Fruit Fly (Ceratitis capitata Wied) Towards Kerosene. Henry H. P. Severin. Ten minutes. 34. Kerosene Traps as a Means of Checking up the Efficiency of a Poisoned Bait Spray to Control the Mediterranean Fruit Fly. Henry H. P. Severin. Ten minutes. 35. Parasites of the Walking Stick, Diapheromera femorata Say. Henry H. P. Severin. Five minutes. Afternoon Session, 2:00 o'clock. 36. Results of the Measurements of Sunshine at Madison, Wisconsin, during 1910, 1911, and 1912. Eric R. Miller. (By title.) 37. The Climatic Influence of the Great Lakes, Especially in Wiscon¬ sin. Eric R. Miller. (By title.) 38. The Congressional Elections of 1844 and 1848. C. R. Fish. (By title.) 39. General Aspects of Literary Patronage in the Middle Ages. Samuel Moore. Twenty minutes. 40. The Attitude of Goethe to Shakespeare. M. E. Speare. Thirty minutes. 41. The Development of the Vowrel of the Unaccented Syllable in Ital¬ ian. Edward B. Schlatter. (By title.) 42. The Aesthetic Purpose of Tennyson in The Palace of Art. Arthur Beatty. (By title.) 43. The Influence of Tertiary Derivative conjugations in Hebrew. Louis B. Wolfenson. Ten minutes. President Munro appointed as committee to consider closer affiliation between the Scientific Societies of Wisconsin, the following: Dr. J. J. Davis (chairman), Prof. W. S. Marshall. .Wisconsin Academy Dr. Geo. P. Barth, Mr. Henry L. Ward . . Wisconsin Natural History Society Dr. Lewis Sherman, Mr. W. H. Ellsworth . . Wisconsin Mycological Society Mr. H. L. Skavlem, Mr. C. E. Brown . . Wisconsin Archeological Society Officers and Members. 1423 By invitation of the chair Director Henry L. Ward of the Public Mu¬ seum, gave a talk on the improvements to be made in the Milwaukee Public Museum. EXTRACTS FROM THE CHARTER. Aw Act to incorporate the Wisconsin Academy of Sciences, Arts, and Letters. The people of the state of Wisconsin, represented in senate and assem¬ bly, do enact as follows: Section 1. Lucius Fairchild, Nelson Dewey, John W. Hoyt, Increase A. Lapham, * * *x at present being members and officers of an asso¬ ciation known as “The Wisconsin Academy of Sciences, Arts, and Let¬ ters,” located at the city of Madison, together with their future asso¬ ciates and successors forever, are hereby created a body corporate by the name and style of the “Wisconsin Academy of Sciences, Arts, and Letters,” and by that name shall have perpetual succession; shall be capable in law of contracting and being contracted with, of suing and being sued, of pleading and being impleaded in all courts of competent jurisdiction; and may do and perform such acts as are usually per¬ formed by like corporate bodies. Section 2. The general objects of the Academy shall be to encourage investigation and disseminate correct views in the various departments of science, literature, and the arts. Among the specific objects of the Academy shall be embraced the following: 1. Researches and investigations in the various departments of the material, metaphysical, ethical, ethnological, and social sciences. 2. A progressive and thorough scientific survey of the state with a view of determining its mineral, agricultural, and other resources. 3. The advancement of the useful arts, through the applications of science, and by the encouragement of original invention. 4. The encouragement of the fine arts, by means of honors and prizes awarded to artists for original works of superior merit. 5. The formation of scientific, economic, and art museums. 6. The encouragement of philogical and historical research, the col¬ lection and preservation of historic records, and the formation of a gen¬ eral library. 7. The diffusion of knowledge by the publication of original contribu¬ tions to science, literature, and the arts. Section 3. Said Academy may have a common seal and alter the same at pleasure; may ordain and enforce such constitution, regula¬ tions, and by-laws as may be necessary, and alter the same at pleasure; may receive and hold real and personal property, and may use and dis- 1 Here follow the names of forty others. Sections 5, 6, 8 and 9 are omitted here as of no present interest. For the charter in full see Transactions , vol. viii, p. xi, or earlier volumes. 1424 Wisconsin Academy of Sciences, Arts, and Letters. pose of the same at pleasure; provided, that it shall not divert any do¬ nation or bequest from the uses and objects proposed by the donor, and that none of the property acquired by it shall, in any manner, be alien¬ ated other than in the way of exchange of duplicate specimens, books, and other effects, with similar institutions and in the manner specified in the next section of this act, without the consent of the legislature. Section 4. It shall be the duty of the said Academy, so far as the same may be done without detriment to its own collections, to furnish, at the discretion of its officers, duplicate typical specimens of objects in natural history to the University of Wisconsin, and to the other schools and colleges of the state. Section 7. Any existing society or institution having like objects embraced by said Academy, may be constituted a department thereof, or be otherwise connected therewith, on terms mutually satisfactory to the governing bodies of the said Academy and such other society or in¬ stitution. Approved March 16, 1870. STATUTES OF 1898. TRANSACTIONS OF THE ACADEMY. Section 341. There shall be printed by the state printer biennially in pamphlet form two thousand copies of the transactions of the Wis¬ consin Academy of Sciences, Arts, and Letters, uniform in style with the volumes heretofore printed for said society. Note. — Under a ruling of the printing commissioners of the. state of Wiscon¬ sin, made in response to a presentation by a committee of the Academy ap¬ pointed December 29, 1897, each volume of the Transactions may be issued in two consecutive parts ; so that a publication may thus be issued each year cov¬ ering the papers accepted after the previous annual meeting. The Academy allows each author one hundred separate reprints of his paper from the Trans¬ actions without expense, except a small charge for printed covers when desired. Additional copies are charged for at the actual cost of printing and binding. OF THE DISTRIBUTION OF PUBLIC DOCUMENTS. Section 365. The transactions of the Wisconsin Academy of Sciences, Arts, and Letters shall be distributed as follows: One copy to each member of the legislature, one copy to the librarian of each state insti¬ tution; one hundred copies to the State Agricultural Society; one hun¬ dred copies to the State Historical Society; one hundred copies to the State University, and the remainder to said Academy. Section 366. In the distribution of books or other packages, if such packages are too large or would cost too much to be sent by mail, they shall be sent by express or freight, and the accounts for such express or freight charges, properly certified to, shall be paid out of the state treasury. Officers and Members. 1425 STATUTES OF 1901. CHAPTER 447. BINDING OF EXCHANGES. Section 1. Section 341 of the revised statutes of 1898 is hereby amended by adding thereto the following: The secretary of state may authorize the state printer to bind in suitable binding all periodicals and other exchanges which the Society shall hereafter receive, at a cost not exceeding one hundred and fifty dollars per annum. The sec¬ retary of state shall audit the accounts for such binding. STATUTES OF 1913. CHAPTER 771. Section 19. That part of section 20.31 of the statutes relating to printing for the Wisconsin academy of sciences, arts and letters is amended to read: “not more than two thousand copies * * * of each number as issued, of the transactions of the Wisconsin academy of sciences, arts and letters * * * together with suitable binding at a cost not exceeding one hundred and fifty dollars per annum of all periodicals and other exchanges which said academy shall hereafter re¬ ceive.” CONSTITUTION OF THE WISCONSIN ACADEMY OF SCIENCES, ARTS, AND LETTERS. [As amended at various regular meetings.] Article I. — Name and Location . This association shall be known as the Wisconsin Academy of Sci¬ ences, Arts, and Letters, and shall be located at the city of Madison. Article II. — Object. The object of the Academy shall be the promotion of sciences, arts, and letters in the state of Wisconsin. Among the special objects shall be the publication of the results of investigation and the formation of a library. 1426 Wisconsin Academy of Sciences, Arts, and Letters. Article III. — Membership. The Academy shall include four classes of members, viz.: life mem¬ bers, honorary members, corresponding members, and active members, to be elected by ballot. obtained by the payment of one hundred dollars and election by the Academy. Life members shall be allowed to vote and to hold office. 2. Honorary members shall be elected by the Academy and shall be men who have rendered conspicuous services to science, arts, or letters. 3. Corresponding members shall be elected from those who have been active members of the Academy, but have removed from the state. By special vote of the Academy men of attainments in science or letters may be elected corresponding members. They shall have no vote in the meetings of the Academy. 4. Active members shall be elected by the Academy or the council and shall enter upon membership on the payment of an initiation fee of two dollars which shall include the first annual assessment of one dollar. The annual assessment shall be omitted for the president, secretary, treasurer, and librarian during their term of office. Article IV. — Officers. The officers of the Academy shall be a president, a vice-president for each of the three departments, sciences, arts, and letters, a secretary, a librarian, a treasurer, and a custodian. These officers shall be chosen by ballot, on recommendation of the committee on nomination of offi¬ cers, by the Academy at an annual meeting and shall hold office for three years. Their duties shall be those usually performed by officers thus named in scientific societies. It shall be one of the duties of the president to prepare an address which shall be delivered before the Academy at the annual meeting at which his term of office expires. Article V. — Council. The council of the Academy shall be entrusted with the management of its affairs during the intervals between regular meetings, and shall consist of the president, the three vice-presidents, the secretary, the treasurer, the librarian,' and the past presidents who retain their resi¬ dence in Wisconsin. Three members of the council shall constitute a quorum for the transaction of business, provided the secretary and one of the presiding officers be included in the number. Article VI. — Committees. The standing committees of the Academy shall be a committee on publication, a library committee, and a committee on the nomination of members. These committees shall be elected at the annual meeting of the Academy in the same manner as the other officers of the Acad¬ emy, and shall hold office for the same term. Proceedings. 1427 1. The committee on publication shall consist of the president and secretary and a third member elected by the Academy. They shall determine the matter which shall be printed in the publications of the Academy. They may at their discretion refer papers of a doubtful character to specialists for their opinion as to scientific value and relevancy. 2. The library committee shall consist of five members, of which the librarian shall be ex officio chairman, and of which a majority shall not be from the same city. 3. The committee on nomination of members shall consist of five members, one of whom shall be the secretary of the Academy. Article VII. — Meetings. The annual meeting of the Academy shall be held at such time and place as the council may designate; but all regular meetings for the election of the board of officers shall be held at Madison. Summer field meetings shall be held at such times and places as the Academy or the council may decide. Special meetings may be called by the council. Article VIII. — Publications. The regular publication of the Academy shall be known as its Transactions, and shall include suitable papers, a record of its proceed¬ ings, and any other matter pertaining to the Academy. This shall be printed by the state as provided in the statutes of Wisconsin. All mem¬ bers of the Academy shall receive gratis the current issues of its Transactions. Article IX. — Amendments. Amendments to this constitution may be made at any annual meeting by a vote of three-fourths of all the members present; provided , that the amendment has been proposed by five members, and that notice has been sent to all the members at least one month before the meeting. 1428 Wisconsin Academy of Sciences, Arts, and Letters. RESOLUTIONS REGULATIVE OP THE PROCEEDINGS OF THE ACADEMY. THE TRANSACTIONS OF THE ACADEMY. [ By the Academy, December 28, 1882.] 2. The secretary of the Academy shall he charged with the special duty of overseeing and editing the publication of future volumes of the Transactions. 3. The Transactions of the Academy hereafter published shall con¬ tain: (a) a list of officers and members of the Academy; (b) the charter, by-laws and constitution of the Academy as amended to date; (c) the proceedings of the meetings; and (d) such papers as are duly certified in writing to the secretary as accepted for publication in ac¬ cordance with the following regulations, and no other. 6. In deciding as to the papers to be selected for publication, the committee shall have special regard to their value as genuine, original contributions to the knowledge of the subject discussed. 9. The sub-committee on publication shall be charged with insisting upon the correction of errors in grammar, phraseology, etc., on the part of authors, and shall call the attention of authors to any other points in their papers which in their judgment appear to need revision. [ By the Academy , June 2, 1892.] The secretary was given authority to allow as much as ten dollars for the illustrations of a paper when the contribution was of sufficient value to warrant it. A larger amount than this might be allowed by the committee on publication. [ By the Academy, December 29, 1896.] The secretary was directed to add to the date of publication as printed on the outside of author’s separates the words, “Issued in ad¬ vance of general publication.” FEES OF LIFE MEMBERS. [ By the Academy, July 19, 1870.] Resolved, That the. fees from members for life be set apart as a per¬ manent endowment fund to be invested in Wisconsin state bonds, or other equally safe securities, and that the proceeds of said fund, only,/ be used for the general purposes of the Academy. Proceedings. 1429 ANNUAL DUES. [ By the Academy, December 29, 1892.] Resolved, That the secretary and treasurer be instructed to strike from the list of active members of the Academy the names of all who are in arrears in the payment of annual dues, except in those cases where, in their judgment, it is desirable to retain such members for a longer time. ARREARS OF ANNUAL DUES. [ By the Council, December 29, 1897.] Resolved, That the treasurer be requested to send out the notices of annual dues as soon as possible after each annual meeting and to ex¬ tend the notice to the second or third time within a period of four months where required. secretary’s allowance. [ By the Academy, December 27, 1902.] Resolved, That the Academy hereby appropriates the sum of seventy- five dollars per annum as an allowance for secretary’s expenses, for which a single voucher shall be required. secretary’s allowance. {By the Council, April 5, 1912.] Resolved, That the Academy appropriates the sum of two hundred dollars per annum for the secretary-treasurer’s allowance. *>-IVn