UNIVERSITY OF ILLINOIS LIBRARY Class Book 5fcO. 'o f ^ Voluma \ Ja CENTRAL CIRCULATION BOOKSTACKS The person charging this material is re- sponsible for its return to the library from which it was borrowed on or before the Latest Date stamped below. Theft, mutilation, and underlining of books or for disciplinary action and may rosult In dismissal from the University. TO RENEW CALL TELEPHONE CENTER, 333-8400 UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN 1 AP# 2 1 1992 When renewing by phone, write new due date below previous due date. 79521 L162 FIELD COLUMBIAN MUSEUM PUBLICATION 25 Botanical Series. Vol. i, No. 4. CONTRIBUTION III TO THE COASTAL AND PLAIN FLORA OF YUCATAN. BY CHARLES FREDERICK MILLSPAUGH, M. D. Curator, Department of Botany. CHICAGO, U. S. A. January, 1898. CONTENTS. i. Plants Collected by Dr. Geo. F. Gaumer in 1895-96, Dr. Arthur Schott in 1864- 66, and Mr. Witmer Stone in 1890. II. Notes and New Species — Prof. Ludwig Radlkofer ; A New Myginda — Dr. Theodor Loesener ; and additional notes and species by the author. Third Contribution to the Coastal and Plain Flora of Yucatan. CHARLES F. MILLSPAUGH, M.D. Since the issue of the second of these contributions, this Museum has been so fortunate as to secure from the widow of the late Dr. Arthur Schott, his entire herbarium, which includes about nine hun- dred Yucatan plants collected by him in 1864-66 while engaged by the Mexican Government to make a geologic survey of the Peninsula. This collection is of great importance, it being the first really com- prehensive attempt to collect the flora of this region. It is, however, to be regretted that Dr. Schott's idea of numeration should have been that of numbering his collections at home, instead of in the field, and attempting to group his species of whatever habitat under certain arbitrary numbers, before such species had been positively ascertained. This will cause conflict between many of the numbers published in these contributions and those in the herbaria of the National Museum and Kew, where part sets of these plants have been previously deposited by him. A majority of his plants are included in this con- tribution. In 1890 an expedition was sent into Mexico under the auspices of the Academy of Natural Sciences of Philadelphia, and in charge of Prof. Angelo Heilprin. The work extended from the Orizaba region to the Peninsula of Yucatan, where Mr. Witmer Stone, the Ornithologist of the party, incidentally collected about three hundred plants. These were approximately determined by the late Mr. J. H. Redfield and distributed, as about ninety-five species, in the herb- arium of the Academy, whence they have been kindly reassembled by Mr. Stewardson Brown, and communicated to me for study by the Academy. These species, so far as determined at this time, are also included here. Even a limited opportunity to examine the collections at the herbarium of Columbia University convinces me that the collection made by the Hon. E. P. Johnson in Yucatan and Tabasco, in 1848, 345 346 FIKLD COLUMBIAN MUSEUM — BOTANY, VOL. i. is of considerably greater proportions than Professor Helmsley reports in the botanical volumes of the Biologia Centrali-Americana. Only a patient overhauling of the whole herbarium can definitely settle the question of the species in this collection. A few genera in Leguminosae revealed several plants which I have incorporated in the following list. Dr. Geo. F. Gaumer has continued his collections during the past year. These, so far as determined, form the basis of this con- tribution, and appear in the text in parenthesized numerals in the body type — the numbers of other collectors being in italics. To the above collections are added, in the following list, a few hitherto unclassified numbers collected by the author in 1887, and in 1895 while a member of the Allison V. Armour expedition, and the remaining numbers of Sr. Porifirio Valdez' century of "Medicinal Plants" collected in 1895. As heretofore, the species appearing in black-face type are new to the region covered by these publi- cations. Those specialists who have kindly contributed to the knowledge of the species, are credited under the orders they have worked. Plants Collected by Dr. Geo. F. Gaumer in 189^-96, Dr. Arthur Schott in 1864-66, and Mr. Witmer Stone in 1890. FUNGI. Lentinus villosus Klotzsch. Merida " in a garden," E. H. Thompson (947). LICHENES. Ramalina calicaris farinacea Schaer. Mex-oul. On shrubs, Downs at Progreso, April to Dec. 1865 (Schatt. jfi). Powdery soredia and lateral apothecia both plentiful. Ramalina calicaris fraxinea Fr. " Common at Progreso " (1175). Ramalina rigida (Pers.) Tuck. Am. Lich., i. 22. Downs of Progreso, Dec. 1865 (Schott, j//). On trees and shrubs; tufts large, branches attenuate elongated, tips filiform, apothecia small. ALG.E. Nostoc verrucosum Vauch. Hist. Alg., 225, fide Prof. W. G. Farlow. "Found in the aguada Chulubmay, nine miles east of Izamal, March " (1097). CHARACE^:. Chara gymnopus A Br. fide Prof. T. F. Allen. "Common in the aguadas east of Izamal" (913)- An inde- terminable sterile sub-species of this form. MUSCI. Leucobryum incurvifolium C. Muell. sp. nov. Species optima, ab omnibus congeneribus. Foliis rotundato- obtusatis brevissime hyalino-apiculatis, definite apice incurvi valde recedens. "Common in the forests at Buena Vista Xbac, September" (1117). 347 348 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Stereophyllum (Moneuruim) perpusillum C. Muell, sp. nov. Monoicum caespituli latissimi perpusilli taxicaulioidei pallide virides nitiduli intricati ; caulis perbrevis vage ramosus, ramis pusillus tenuibus complanatulis aetate albescenti-viridibus madore parum turgidulis ; folia caulina minuta in axi crassuisculo pallide virente laxe horride conferta humore regulariter patula plagio- thecoidea, e basi angustiore ad alam unicam cellulis nonnullis parenchymaticis pellucidis majusculis ornata anguste oblongo- lanceolata breviter acuminata acutata integerrima, nervo angus- tissimo mediano viridi parum carinata-concava, e cellulis parviis longiusculis angustiusculis laxiusculis mollibus chlorophyllosis reticulata ; perichaetialia pauca parum minore apressa longius acuminata ; theca in pedicello brevi rubente inclinata aetate nutans parva oblonga sub ore valde coarctata fusca, operculo breviter conico ; peristomium pro capsula robustum, dentibus externis angustis lutescentibus cristatis, internis minutis ciliatis rudimentariis. Habitato America-centralis, Yucatan, in Sylvis proxe Izamal, 1897(340.) Ex habitu ad Stereophyllum Peruvianum (Mtze. ) accedens, sed haecce species foliis multo laxius reticulatis magis acuminatis basi ad alar utrinque parenchymaticis longe differt. Adiantum tenerum Swz. Prod. 135. Culantrillo. " A growth 3 feet high, in a cave about one mile northwest of Izamal" (1071). At the cenote of Kickil (Schott, 778}. Quinta Encalada, Merida, March 26, 1865 (Schott, 92*). ADIANTUM TRICHOLEPIS Fee. At the ruins of Uxmal, Sept. 15, 1866 (Schott, 687}. Cave near Calcehtok, March u, 1890 (Stone, 263, in Herb. Acad. Sci., Phila.). ANEIMIA ADIANTIFOLIA Swz. At Teocali, and on the ruins in Mayapan, Feb. 28, 1866 (Schott, 651). Aneimia bipinuata Moore. Cenote ya Usil, Hacienda de Mucuych6 Oct. 20, 1865 ; and Cenote de Uayma, March, 1866 (Schott, 677). ASPIDIUM TRIFOLIATUM Swz. Syn. 43. " Growth 3 feet high, abundant in a large cave at Buena Vista Xbac, November" (994). Cenote de Sta. Ana, Valladolid, March, 1866 (Schott, 782, immature specimens from same local- ity, 780} Cave near Calcehtok, March u, 1890 (Stone, 261, in Herb. Acad. Sci., Phila.). *Determined by Mr. George E. Davenport. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 349 Asplenium dentatum Linn. At the Cenote de Telchaguillo, March i, 1866 (Schott, 747}. ASPLENIUM PUMILUM Swz. Sisalchen. Quinta de Obispo, Merida, Nov. 15, 1864 (Schott, //.) CHEILANTHES MICROPHYLLA Swz. Syn. Fil. 127. On walls at Merida, Oct. 4, 1865 ; and at the ruins of Uxmal,. Sept. 16, 1865 (Schott, 686}. In well near Izamal, Feb. 28, 1890 (Stone, 253, in Herb. Acad. Sci., Phila.). Hemionitis palmata Linn. Sp. PL, 1535. " Growth 8 inches high, common in the dense forests of Buena Vista Xbac " (1072). Phegopteris rudis. A single young frond, apparently of this s,pecies, was collected by Dr. Schott with his specimens of P. tetragona, (6jf) at the Cenote de Sacalum, Sept. 18. 1865. Phegopteris tetragona Mett. Fil. Hort. Lips., 84. "A growth 16 inches high, common on the walls of a cenote about 12 miles east of Izamal " (995). Dr. Gaumer sends another specimen of this species under the number (993) remark- ing: "Fern 2 feet high, occasionally seen in cultivation, and said to grow wild," which wild state is proven in his 995. Cenote de Sacalum, Sept. 18, 1865 (Schott, Polypodium incanum Swz. Fl. Ind. Occ., iii., 1645. " Found growing upon the branches of Lysiloma latisiliqua at Buena Vista Xbac, in September, not seen again" (mo). POLYPODIUM LYCOPODIOIDES Linn. Climbing trees at the cenote of Kikil, March 27, 1866 (Schott, 768). POLYPODIUM PHYLLITIDIS Linn. At the cenote Mascabicu, March, 1866 (Schott, 781}. Polypodium rep tans Swz. At the cenote Uayma, March, 1866 (Schott, 779)- Cave near Calcehtok, March, n, 1890 (Stone, 264, in Herb. Acad Sci., Phila.). SALVINIACE^:. Salvinia auriculata Aub. fide Prof. Underwood. " Found floating upon the surface of the water of many of the aguadas near Izamal, November" (1007). Smaller than usual and sterile; probably young plants. LYCOPODIN^E. SELAGINELLA LONGISPICATA Underw. Field Col. Mus. Bot., i., 287. Small but typical plants from Nohcacab, Nov. 1865 ; and Merida, Sept. 1865 (Schott, 669.} 350 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. CYCADACE.E. Cycas circinnalis Linn. Sp. PL, 1658. Teoiczotl. Cultivated at Merida, March n, 1866, not in flower (Schott, 748.} GRAMINEAE.* Andropogon hirtiflorus Kth. Revis. Gram., ii., 569. "Tekax, on old fields, 3 feet high, Sept." (1134.) Andropogon semiberbis Kth. Enum., 489. "Two feet high, abundant on stone walls/ house roofs and on the ancient ruins, rare in fields, about Izamal," Nov. (1037.) Andropogon sorghum Drummondii Hack, de C. Monog. Phan. vi., 507. "Three feet high, in an old field at Buena Vista Xbac," April (1053.) Anthephora elegans Schreb. Besch. Graes., ii. , 105. " Common in old fields near Izamal, i foot high." Oct. (1030). Merida, Sept.; and Hacienda San Rafael, Oct. 1 865 (Schott, 549). Aristida nigrescens Presl., Rel. Haenk., i., 223. Merida, Aug. and Oct. 1865 (Schott, 601, 656 in part"). Arundo Donax Linn. Sp. PI., 81. " Common on the coast in aguadas and cenotes, often culti- vated. 20 feet high" (1141). Bouteloua Americana (Sw.) Scribn. loc. cit. 306. Aristida Americana Sw. Obs. 41, t, f. 2 ; 1791 ex Kunth. Sinebra repens H. B. & K. Nov. Gen. et. Sp. , i. 172, t. 52; 1815. " Brushlands near Izamal, uncommon, 3 feet high." Oct. (1036). Bouteloua bromoides Lag., Gen. et Sp. Nov., 5. Merida, Sept., Oct. and Nov., 1865 ; and at the ruins of Uxmal Sept. 16, 1865 (Schott, 656, 742, 659). Depauperate specimens from Tekanto, Feb. 28, 1890 (Stone, 189, in Herb. Acad. Sci. Phila.) Bouteloua disticha (H. B. K.) Benth. Jour. Linn. Soc. xix., 105. Polyodon distichum H. B. K. Nohcacab, Nov. 24, 1865 (Schott, 741). Presl. referred this to Bouteloua bromoides H. B. K. BOUTELOUA TRIJENA (Spreng.) Scribn. Proc. Phila. Acad. 1891, 307. Triana racemosa H. B. K. "Two feet high; uncommon on old fences and low shrubbery, upon which it depends for sup- port." Izamal, Aug. (1026). Nohcacab, Nov. 24, 1865 (Schott, 740} Tekanto, Feb. 25, 1890 (Stone, 210, in Herb. Acad. Sci. Phila.). For synonomy see p. 10, Contrib. I. *Determined by Prof. F. Lamson-Scribner. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 351 Cenchrus" echinatus Linn. Sp. PL, 1050. To be compared with C, viridis Spreng. , which Griesebach refers to C. echinatus as a variety. "Very abundant on culti- vated lands near Izamal, 18 inches high" (1084). Merida, Aug. 1865 (Schott, 498 in part). CENCHRUS PALLIDUS Fourn., Mex. PI. Enum. Gram., 50. Mul. Merida, July and Aug. 1865 (Schott, 596, 498). Schott's^pd equals Liebmann's 465. Chloris barbata Sw. Fl. Ind. Occ., i. 200. "Abundant on stone walls near Izamal, 18 inches high." (1085). Chloris ciliata Sw., Prod. Veg. Ind. Occ., 25. Merida, Aug. 3, 1865 (Schott, 383}. Calcehtok, Mar. n, 1890 (Stone, '274, in Herb. Acad. Sci. Phila.). Chloris elegans H. B. K., Nov. Gen. et Sp. i. 166. At Sacalum, Sept. 18, 1865 (Schott, 632). Coix LACHRYMA-JoBi Linn. Sp. PI. 972. " Izamal. One plant came up spontaneously in my yard in 1894, and produced a quantity of seed ; this was followed in 1895 by several plants springing up in the same place and pro- ducing a great quantity of seed; but none came up in 1896" (1031). See p. 9 spec. cit. CYNODON DACTYLON Pers., Syn. PI., i. 85. At the hacienda Saragossa, Sept. 8, 1865 (Schott, 737}. Dactyloctenium .ZEgyptiacum (L.). Merida, Aug. and Sept. 1865 (Schott, 734}- Cynosurus ^gyp- tins Linn. Distichlis spicata (L.). Greene Bull. Calif. Acad., ii. 415. Uniola spicata Linn. Celestun, May 13, 1865 (Schott, 494). ELEUSINE INDICA Gaertn. Fruct., i. 8. " Abundant in shady places near Izamal, 15 inches high " (1086). Merida, Aug. and Sept. 1865 (Schott, 593 in part, 738}. ERAGROSTIS CILIARIS Link. Hort. Berol., i, 192. Yucatan loc. ignot. (851). Merida, at Quinta del Obispo, Nov. 24, 1864, and Sept. 5, 1865; and at the ruins of Uxmal, Sept. 1 6, 1865 (Schott, 20. 619). Tekanto. Feb. 27, 1890 (Stone, 187, in Herb. Acad. Sci. Phila.). Eragrostis elongate Jacq. EC. Gram., t. 3. Sublitoral at Sisal, Oct. 24, 1865 (Schott, 646). Compares with specimens in the Bernhardi herbarium, labeled by Presl. Eragrostis plumosa Link, Hort. Berol., i. 192). Merida at Quinta del Obispo, Nov. 1864, and Sept. 1865 (Schott, 59\ 352 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Guadua latifolia H. B. K. ? Syn. PI. i. 254. Merida, Jan. 1866, lacking inflorescence (Schott, num. amiss.}. Gouinia latifolia (Griseb.) Vasey. Rose in Contrib. Natl. Herb., i- 365- Tricuspis (Neuroblepharum) latifolium Griseb., PI. Lorentz, 259. Nohcacab, Nov. 25, 1865 (Schott, Gouinia virgata (Presl.) Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 4, 10. Bromns virgatus Presl. Rel. Haenk., 263. Gouinia poly gama. Fourn. Enum. PI. Mex. Gram., 103. Tekax, Sept. (1033). Ichuauthus lanceolatus Scribn. & Sm. Xcanchim. "An erect or ascending, caespitose, branching perennial i to 2 feet high, with lanceolate leaves and simple panicles of few loosely flowered racemes. Sheaths shorter than the internodes, ciliate along the margins, otherwise smooth, or the lowermost pubescent; ligule a short ciliate fringe of hairs; leaf blade i to 3 inches long, ^ to ^ inch wide, lanceolate acute, smooth, many nerved, with a narrow cartilaginous margin abruptly nar- rowed at the base, this contraction forming in the lower leaves, especially those of the sterile shoots, a slender channeled petiole, which, like the sheaths, is ciliate along the margins. Panicle branches, erect or ascending (spreading in anthesis), i to 2 inches long, the uppermost shorter. Spikelets in pairs, one sub- sessile, the other raised on a pedicel about as long as itself. Spikelets ovate-lanceolate, acute, glabrous, about 2 lines long; first glume ovate, acute, strongly 3-nerved, one-half to three- fourths the length of the spikelet, scabrous on the mid-nerve above; second glume ovate-lanceolate, acuminate, 5-nerved, nearly clasping the similar empty third glume ; base of the fourth glume surrounded by the third; fourth glume about 1.5 lines long, oblong-lanceolate obtuse, 5-nerved, very smooth and' closely rolled about the palea, which is of similar texture. — " Old fields about Jzamal, No. 854. George F. Gaumer, September, 1895. Yucatan." Scribner & Smith, U. S. Dept. Agric. Div. Agrost. Bull. 4, Feb. 6, 1897, p. 36. "Common in the forests of Buena Vista Xbac," Sept. (mi). This is the Panicum sp. of p. 288, these contributions. LEPTOCHLOA MUCRONATA Kth. Rev. Gram, i, 91. Environs of Merida (Schott, May 1865, 401 ; July 1865,^07, 590 ; Nov. 1865, / Oplismenus Burmannii (R. Br.) Beauv., Agrost., 54. Orthopogon R. Br. , Prod., 194. "In shady places, 3 feet high, common about the mouths of caves and around cenotes and aguadas near Izamal," Oct. (1038). Merida at the Quinta del Obispo, Nov. 1864 ; and Merida, July 1865 (Schott, 55, 384.} In Dr. Schott's 384 and Dr. Gaumer's 1038 the spikelets are somewhat larger and the foliage larger and denser than in Dr. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 353 Schottis 55, and some authors have referred the former to Oplis- menus cristatus (Presl). Both forms have been referred to O. Humboldtianus Nees. In the Kew Index, O. cristatus and O. Hiimboldtianus are referred to O. Burmannii. Beauv. Panicum Carthaginense Sw., Fl. Ind. Occ., i. 148. Merida, July n, 1865 (Schott. 592}. PANICUM COLONUM Linn., Syst. ed. x, 870. At the Quinta del Obispo, Merida, Nov. 1864; and at Merida, June and July 1865 ^chott, 42, 598}. Panicum Crus-galli Linn. Sp., PI., 50. Borders of an aguada at Kanachen, March 1866 (Schott, 832). Panicum divaricatum Linn. Elmg. PI. Jam. Perg., 9. " Common on fences in low brushlands, 4 feet high. Izamal " (1032). Merida, 8 to 9 feet high, Oct. u, 1865 (Schott, 675}. Panicum divaricatum latifolium (L.) Fourn. Enum. PI. Mex. Gram., 33. Sit. P. lanatum Sw. Griseb., Flor. Brit. W. Ind. ,551. "Common along old fences and in brushlands near Izamal, Aug. to Feby. " (1025.) Merida, Aug. and Sept. 1865 (Schott, 600). PANICUM FUSCUM Sw. , Prod. Veg. Ind. Occ., 23. Merida, May and June 1865 (Schott, 384). Panicum lanatum Rottb. Act. Lit. Univ. Hafn., i. 269. P. insulare Meyer., P. leucophceum H. B. K. Merida, 1865 (Schott, 94). Panicum marginatum (Link) not R. Br., nor Vahl. Digitaria marginata Link. Hort. Berol., i, 102. Panicum Link- ianum Kth. Gram., i. 33. " Common in waste places near Iza- mal. 3 feet high, Nov." (1034.) Merida, Aug. 27, 1865 (Sc/wtt, 609). Panicum maximum Jacq. Ic. PI. Rar., i, t. 13. Sacate Guinea. P. jumentorum. Pers. Syn., 83. " Common in cultivation, growing from 6 to 8 feet high. Izamal, June " (719). Merida, Aug. 20, 1865 (Schott, 595). PANICUM SANGUINALE Linn. sp. PI. 57. Yucatan, loc. ignot. (1029). Merida Aug. 20 ; ruins of Uxmal, Sept. 1 6, 1865 (Schott, 586, 735). Paspalum elongatum Griseb. PI. Lorentz., 260. Merida, Aug. 3, 1865 (Schott, 593). This specimen agrees with 1306 Bang's Bolivian collection of May 1892. Paspalum lentiginosum Presl.? Rel. Haenk., i. 218. Merida, July n, 1865 (Schott, 597). Allied to P. pamculatum Linn. Spikes 4 to 5 slender, 1.5 to 2.5 in. long, the lower ones remote. 354 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Paspalum paspaloides Pers. Syn., 81. " Izamal, common in old fields, 3 feet high, Oct." (1027). Paspalum vaginatum Sw., Prod. Veg. Ind. Occ., 21. In fresh water at the aguada and Cenote de Nabula on the Hacienda Chabl^, Aug.; and salt swamps near Sisal, Nov. 1865 (Schott, 546, 733}. This species appears to me distinct from P. distichum Linn. SETARIOPSIS AURICULATA (Fourn) Scribn., Field Col. Mus. Bot., i. 289. Merida, July and Aug. ; and Hacienda Saragossa, Sept. 1865 (Schott, 592, 591, 621). Streptachne tenuis H. B. & K., Nov. Gen. et sp., i, 124. Aristida tenuis Kth. Rev. Gram., i, 62. " Uncommon among low shrubbery along old fences near Izamal, 3 feet high. Aug." (1024.) Merida, Sept. 1865 (Schott, 736). Under the number 594 Dr. Schott collected in the Aguada de Labcah in July 1865, a portion of a gramineous species near Arundinaria, to which he applies the Yucatec name Canote, also 547 from gardens at San Rafael de Xteppen, an Andropogon. Neither specimen bears flowers nor fruits, in fact no portion of an infloresence. With these two the above list includes all the gramineae in the Yucatan portion of his herbarium. CYPERACE.E*. Cyperus Sp. Prox. speciosus. "Height 3 feet, common in moist, shady places near Izamal." (1035). CYPERUS OCHRACEUS Vahl. Enum. ii., 325. Yucatan loc. ign. (1028). Cyperus rotundus Linn. sp. PL, 67? "One foot high, common in moist places near Merida" (1088). Cyperus squarrosus Linn, Cent. PI., ii. 6. " Six to 10 inches high, common in old fields near Izamal " (1023). Rynchospora micrantha Val. Enum. ii., 231. "One foot high, common in the forests of Buena Vista Xbac, September " (1115). PALM.E. Acrocomia Mexicaua Karw. Mart. Hist. Nat. Palm, iii. 285 Cocoyol. Merida, Dec. 1865 (Schott, 805}. " Next to the Coco the tall- est and most graceful palm of the region." * Determined by Prof. N. L. Britton. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 355 Attalea Cbhune Mart, in Palmet. Orb., 121. Caraso. Cult? Hacienda Oxcom, Feb'y 4, 1866 (Schott, 726 in Herb. U. S. Nat'l Mus.). Chamsedorea gracilis Willd. Sp. PI. iv. 800. Xiat. • " Palm 20 feet high, abundant at Xcholac and Buena Vista Xbac, flowering from Feb'y to March " (420). Ruins of Nohpat, Nov. 24, 1865 (Schott, 7/p). Cocos NUCIFERA Linn. Sp. PI., 1658. Cult. Merida, Dec. 1865 (Schott, 712}. Phoenix dactylifera Linn. Sp. PI., 1658. Cult? at the Rancho San Joaquin, near Mayapan, March i, 1866 (Schott, 7 49). SABAL MEXICANUM Mart Hist. Nat. Palm., iii 246. Xaan. "A very common tree in the forests of the peninsula, flower- ing throughout the year" (317). Merida, Jan'y, 1866 (Schott, 802). Thrinax argentea Lodd. Desf Cat. Hort. Par., iii. 31. Chit. Downs at Progreso, Dec. 22, 1865 (Schott, 293, 721). ARACE.E. Arissema sp. " In moist places, forests about Izamal " (1091). Arum Italicum Mill. Gard. Diet., ed. viii, n. 2. Merida Cult? March to June, 1865-6 (Schott, 489). Caladium bicolor Vent. Jard. Cels., t. 30. Papagayo. Merida, June, 1865 (Schott, 434}. Philodendron trifoliatum. Mayapan, Feb'y 28, 1866 (Schott, 836). LEMNACE^E. WOLFFIA BRAZILIENSIS Wedd. An. Sc. Nat., 1849. 170. Hacienda de San Rafael Xteppen, July 7, 1865, and Hacienda de Chable", Aug. 8, 1865 (Schott, 541}. BROMELIACE^:. vEcHMEA BRACTEATA (Sw.) Mez. de C. Monogr., ix. Xkeo. "Six feet tall, abundant in the forests about Izamal, producing its yellow flowers from Feb"y to June" (419). Road to Progreso, April 7, 1865 (Schott, 274), BROMELIA PINGUIN Linn. Sp. PL, 285. Oalbay. Aguada Calatcapek, April 2, 1866 (Schott, sine. num.). 356 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Karatas Plumieri E. Morr. Belg. Hortic, 1872, 131. Pinuela. Chom. Merida, June 19, 1865 (Schott, 558}. Tillandsia brachycaulos Schl. in Linnaea., xviii, 422. Mis. "Herb 12 inches high, abundant on trees near Izamal, produc- ing its royal-purple flowers in June " (742). Merida, July, 1865 (Schott, 557). TILLANDSIA FASCICULATA LATISPICA Mez. de C. Monogr. Phan, 9. Merida, March 10, 1865 (Schott, 435]. Xolohbenal. TILLANDSIA RECURVATA Linn. Sp. PI., ii, 410. Merida, Nov. 13, 1864 (Schott, jj). Tillandsia setacea Sw. Fl. Ind. Occ. i, 593. Merida, July n, 1865 (Schott, 842). TILLANDSIA STREPTOPHYLLA Scheidw. Hort. Beige, iii, 252. Merida, June 26, 1865 (Schott, 349}. TILLANDSIA UTRICULATA Linn. Sp. PI., ed. ii, 411. Merida, July 28, 1865 (Schott, TILLANDSIA VESTITA Cham. & Schl. Linnaea vi, 52. Merida, Dec. ii, 1864 (Schott, 161). COMMELINACE^:. CALLISIA REPENS Linn. Sp. PI., 62. Merida (Schott sine, num.] ; loc. ign. (Schott, iji). " Herb 18 inches to 2 feet, abundant in fields and forests about Izamal, its blue flowers appearing throughout the year" (376). " Prostrate 3 feet, rooting at the joints (1079). Commelina nudiflora Linn. Sp. PL, 4. Merida. Nov. 30, 1864 (Schott, 32}. Commelina pallida Willd. Hort. Berol. ii, 87. Collected by Dr. Gaumer near Izamal together with Callisia repens No. 376. RHOEO DISCOLOR (L. Her.) Hance, Walp. Ann., iii, 659. Chac-Qam. Merida, Feb'y ii, 1865; Ruins of Labcah near Hacienda Chemax, July 30, 1865 (Schott, 239, 564). Spironema fragrans Lindl. Act. Soc. Sc. Fenn, x, 127. " One foot high, rare at Xcholac, producing its white flowers in March " (421). Zebrina pendula Schniz. in Bot. Zeit vii, 870. " Ascending 3 feet, commonly cultivated at Izamal, producing its bright blue flowers from August to March " ^412). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 357 LILIACE.E. Smilax Gaumerii sp. nov. Xcoch6. Stern cylindrical, striate, climbing 25 feet, armed with strong triangular - flattened prickles, mostly in pairs opposite the branches, sometimes slightly curved at the points; branches sub- cylindrical, striate, more or less zig-zag, aculeate; leaves ovate- lanceolate, taper- pointed, mucronate, oblique at the base, strongly reticulate-veined above and below, 3-nerved, the mid rib furnished with 1-2 recurved prickles; petioles short, jointed at the middle and furnished with a stout recurved prickle at the joint; stipules sheathing, often aculeate and sometimes prolonged into light grey ligneous tendrils. Inflorescence axillary, globu- lar, peduncle about half the length of the pedicels. Leaves i to 2.5 inches long, .5 to i inch broad, petioles .25 inch long, stem prickles .25 to .36 inch long. Frequent on forest and brush lands about Izamal, June (687). AMARYLLIDACE.E. YUCCA YUCATANA Engelm Trans. Acad. St. Louis iii. 37. Ruins of Nohpat, Nov. 24, 1865 (Schott, 706). Zephyranth.es Lindleyana Herb. Amaryll. 174. t. 35. f. 5. "Herb 8 inches high, very abundant in the town of Izamal, opening its sulphur-yellow flowers in September (836). DIOSCOREACE^. Dioscorea alata Linn. Sp. PI., 1033. Hacienda San Rafael Xteppen, Cult?, Aug. 7, 1865 (Schott, 548}. Dioscorea calyculata Donnell-Smith, Bot. Gaz. xx, 295. "Vine 40 feet, common on vacant and waste lands where it flowers in November" (931)- Dioscorea floribunda Mart. & Gal., Bull. Acad. Brux., ix, 391. "Vine 20 feet, common on brush lands, Nov." (925, 926). Dioscorea macrostachya Bth., PI. Hartw. , 73. "Vine 12 feet, abundant on brush lands, Sept." (794). Dioscorea polygoniodes H. & B., Willd., Sp. PI., 795. " Vine 20 feet, common on brush lands, Nov." (928). Dioscorea sativa Linn. Sp. PI., 1033. Bolador. "Vine 60 feet, rarely cultivated; blooms in October, and pro- duces at every leaf an edible fruit resembling the potato, the large tuberous root is also eaten " (920). 358 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. MUSACE.E. MUSA SAPIENTUM Linn. Sp. PI. 1477. Haas. Merida at the Quinta del Obispo July to September, 1864-5 (Schott, 849). CANNACE^:. Cauna edulis Ker-Gawl Bot. Reg. ix, t. 775. " Common in cultivation at Izamal where it flowers from July to March" (963). PIPERACE.E. Piper auritium H. B. K., Nov. Gen. & Sp., i. 54. Xmacolaii. Merida at the Quinta del Obispo, Nov. 25, 1864 (Schott, 183). Abundant about Merida (Valdez, 80). CASUARINACE^E. CASUARINA EQUISETIFOLIA Linn. Amoen. Acan., iv. 143. Cipres. A cultivated tree 100 feet high, loc. ign. (945). Merida Dec. 1864 (Schott, 66). MORACE.E. ALICASTRUM BROWNEI Kuntze, Rev. Gen., 623. Brosimum Alicastrum Sw. Merida, June 25, 1865; Hacienda Xteppen, July 7, 1865 (Schott, 555, 561}. Tekanto, Mar. 9, 1890 (Stone, 225, in Herb. Acad. Sci. , Phila.). Artocarpus iucisa Linn. f. Suppl., 411. Arbol de Pan. Cult? Hacienda Taulum, Dec. 1865. (Schott, 816). Castilloa elastica Cerv. Supl. Gaz. Lit. Mex., 7. Hule. Cult? Hacienda de Kanachen, March 1866 (Schott, 777). Cecropia obtusa Tree. Ann. Sc. Nat., 1847, 79. Xcoochle. Ruins of Uxmal, Sept. 15, 1865 (Schott, 639). Chlorophora tinctoria (L) Gaud. Freyc. Voy. Bot. 1826. Morus tinctoria L. , Madura tinctoria Don. Male tree at Merida July 3, 1865 (Schott 5/7); female at the Aguada de Labcah, near the Hacienda de Chernax, July 30, 1865 (Schott, 607). DORSTENIA CONTRAJERVA HOUSTONIANA Bureau. Xcampahuy. Merida at Quinta del Obispo, Nov. 24, 1864 (Schott, 46). Ficus sp. Saccabah. Aguada de Calotyaxek, leaves only, March 1866 (Schott, 783}. Ficus Bonplandiana Miq. An. Mus. Bot. Lugd., iii, 298. Golondrino. Alamo. Cult? at Celestun, May 12, 1865 (Schott, 352}. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 359 Ficus LONGIPES Miq. loc. cit. Cop6. Alamo. At the Hacienda de San Rafael Xteppen Aug. 7, 1865 (Schott, 846). MORUS CELTIDIFOLIA H. B. K. Nov. Gen. et sp., ii, 33. Merida (Schott, 847}. URTICACE.E. Urera baccifera(L.) Gaud, in Freyc. Voy. Bot., 497. LaalOimin. Ortega de Caballo. " Common on the ancient mounds, and frequently cultivated for hedges near Izamal, November, but often out of season " (936). Our plant agrees with Regnell's 410, Minas Geraes, Brazil; and Rusby's 1467, Mapiri, Bolivia. URERA MICROCARPA Wedd Arch. Mus. Par., ix, 156.- Laal. Ortega de los Caballos. Tizimin, March 28, 1866 (Schott, 796}. ARISTOLOCHIACE.E. ARISTOLOCHIA BREViPES,Benth. pi. Hartw., 15. Guaco. Merida, Nov. 29, 1864; Aug. 30, 1865 (Schott, 426). Oitas March 31' 1866 (Schott, 839). Aristolochia maxima Jacq. Enum. PI. Carib. 30. Guaco del Sur. Nohcacab, Sept. 1865 (Schott, 789). POLYGONACE^E. ANTIGONON LEPTOPUS Hook. & Arn. Bot. Beech. Voy., 308. Flor de San Diego. "Vine 60 feet, common in cultivation, often also found growing wild, flowers profuse and showy " (1132). Over old fences about Merida, Apr. 14, 1887 (Millspaugh, 43). Merida, Nov. 1865 (Schott, 57). PODOPTERUS MEXICANUS H. & B. PI ^Equin. ii, 89. Sacioa. Merida June 16, 1865 (Schott, 487). CHENOPODIACE.E. ATRIPLEX CRISTATA Humb. & Bonpl.? ex Willd. Sp. PI. iv 959. " Common on the beach at Progreso " (1169). Our plant does not exhibit the serrations of the leaf given in the description, being sub-entire. Chenopodium album Linn. Sp. PL, 319. Quilites. "Herb 6 to 10 feet high, often observed in cultivation and escaped into fields where, however, it finally dies out" (1065). 360 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Salicornia Bigelovii Torr. Bot. Mex. Bd., 184. S. mucronata Bigel. non Lag. " Shores of lagoon at the Port of Silam " (633). Celestun, May 12, 1865 (Schott, 297). Suaeda fruticosa Forsk, Fl. JEg. Arab. 70. "Herb 2 feet high, common at Progreso " (1172). AMARANTACE^E. Alternanthera obovata (Mart. & Gal.) "Herb 2 feet high, rare, only one clump seen, and that in the Plaza de los Remedies at Izamal, where it flowers from Septem- ber to January" (905). Alternanthera repens (L) Kuntze Rev. gen. PI., 540. " Prostrate herb 2 to 8 inches, infrequent, roadside six miles east of Izamal, April " (1070). ALTERNANTHERA STRAMINEA (Mart.) Millsp. Field Col. Mus. Bot. i, 16. Calcehtoh, March n, 1890 (Stone, 266 in Herb. Acad. Sci., Phila.). AMARANTUS HYBRIDUS Linn. Sp. PL, 1406. " Herb 8 to 12 feet high, common in old fields about Izamal, flowering in December " (1081). The densely flowered, congested- paniculate form. Merida, July i, -i%6$' (Schott, 817}. Calcehtoh, March n, 1890 (Stone, 262, in Herb. Acad. Sci., Phila.). GOMPHRENA DECUMBENS Jacq. Hort. Schoenber., t. 482. Merida, Aug. 20, 1865 and Nov. 15, 1864 (Schott, 82,818} Tekanto, Feb. 27, 1890 (Stone, 221, in Herb. Acad. Sci., Phila.). Gomphrena globosa Linn. Sp. PL, 224. The white-flowered form Merida Jany. 14, 1866 (Schott, 731}', the purple-flowered form from the same locality (Schott, 730). IRISINE CELOSIOIDES Linn. Sp. PL, 1456. " Climber 15 feet, abundant in open wild lands, near Izamal, and occasionally seen in cultivation, April" (1078). Kokera paniculata (L.) Kuntze Rev. Gen. PL, 542. Chamissoa H. B. K. "A scandent shrubby plant 10 feet high, common near the aguada de Xcholac, flowering in November" (ion). PHILOXERUS VERMICULATUS (L.) R. Br. Prod., 416. Celestun May 13, 1865 (Schott, 380). PHYTOLACCACE.E. PETIVERIA ALLIACEA Linn. Sp. PL, 486. Zorilla. Suburbs of Merida, Nov. 14, 1864 (Schott, 31}. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 361 NYCTAGINACE.E. ALLIONIA VIOLACEA Linn. Syst., ed. x, Hacienda Sooil northeast of Merida July 30, 1865 (Schott, S31}- BOERHAAVIA ERECTA Linn. Sp. PL, 4. " Erect, flowers lilac, Merida June 12, 1865 (Schott, 478} Tekan- to, flowers pink, Feb. 27, 1890" (Stone, 214, in Herb. Acad. Sci., Phila.). Boerhaavia scandens Linn, Sp. PL, 4. "Procument, flowers yellow, calyx glandular, Merida, June 12, 1865 " (Schott, 21}. MIRABILIS JALAPA Linn. Sp. PL, 252. Campo, suburbs of Uman, April 1887 (Millspaugh, j6). PISONIA ACULEATA Linn. Sp. PL, 1511. Merida suburbs. In flower Dec. 1864; in fruit Feby. 1865 (Schott, 143). Ticul, bush 6 ft., flowers greenish-yellow, fragrant, March 16, 1890 (Stone, 285, in Herb. Acad. Sci., Phila.). PORTULACACE.E. PORTULACA OLERACEA Linn. Sp. PL 638. " Abundant on cultivated grounds, producing its yellow flowers in profusion from July to February" (1001). PORTULACA PILOSA Linn. Sp. PL 639. Merida suburbs, Dec. 1864, July 1865 (Schott, 150). SESUVIUM PORTULACASTRUM Linn. Sp. PL, 684. Oaican. Celestun May 1865 (Schott, 488). CASTALIA AMPLA (De C.) Salisb. Parad. Lond., 1805. 73. Aguada de Labcat near Merida July 30, 1865, and Aguada de Xcholac, March 1865 (Schott, 528}. ANONACE^:. ANONA MURICATA Linn. Sp. PL, 536. Guanabano. Cult ? Quinta del Obispo, Merida, (Schott, sine nuni). Aiiona palustris Linn. Sp. PL, ed. ii., 757. Corcho. Mag. Aguada Calotyaxek, sine die (Schott, 19). ANONA SQUAMOSA Linn. Sp. PL, 537. Saramuyo. Merida, cult ? June 18, 1865 (Schott, 497], Hacienda Taulum, Dec. 1865, not in flower (Schott, 820}. 362 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. MENISPERMACE.E. CISSAMPELOS PAREIRA Linn. Sp. PL, 1473. Campo about Merida, in full flower June to Nov. 1864-5 (Schott, 91, 500). LAURACE.E. CASSYTHA FILIFORMIS Linn. Sp. PI., 530. Climbing over Conacarpus erectus at Sisal Nov. 10, 1865 Schott, 698). PERSEA GRATISSIMA Gaertn. Fruct., ii. 222. On. Cult ? Merida, Feb. 6, 1865 (Schott, 203). PAPAVERACE.E. ARGEMONE MEXICANA ocHROLEucA.Lindl. Bot. Reg., t. 1343.. Suburbs of Merida, Jan. 27, 1865 (Schott, 198}. CRUCIFER^:. CAKILE MARITIMA Scop. Fl. Cam., ed. 2. ii, 35. C. aeguatis'L'Her. Celestun, May 13, 1865 (Schott, 376) . Raphanus Raphanistrum Linn. Sp. PI. 669. "Eighteen inches high. A large number of plants came up in the plaza of Izamal in February, 1896, just after Orin's circus troupe had camped a week on the same place, and as they fed American and Mexican hay to their animals it is probable that the seed of this plant was introduced by them. Later the plant was taken under similar circumstances in Merida" (1064). CAPPARIDACE.E. Capparis Cynocephallophora Linn. Sp. PL, ed. ii, 721. Xbayunak. Merida, May 6, 1865 (Schott, 351}. CLEOME SPINOSA Jacq. Enum. PL Carib. , 26. Merida, April 13, 1865 (Schott, 329). CRAT/EVA GYNANDRA Linn. Sp. PI. ed., ii, 636. Merida (Cult ?), Dec. 1864; Feb'y 1865 (Schott, 156), MORINGACE.E. MORINGA APTERA Gaert. Fruct., ii, 315. Cult. Merida at Quinta del Obispo, March i, 1865 (Schott, 471). CRASSULACE.E. BRYOPHYLLUM PINNATUM (Lam.) S. Kurz. Jour. Assoc. Beng. , xi. 52. Cenote of Tunkax, March 26, 1866 (Schott, 770). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 363 LEGUMINOS.E. ACACIA FARNESIANA (L.) Willd. Sp. PI. iv. Par., ii, 1083. ''A common tree 30 feet high in the forests about Izamal, producing its fragrant orange-yellow flowers in October." (1010.) Our plant agrees with Schott's (if 8) Cuba (A Cavenia Bert.). ACACIA SPADICIGERA Ch. & Sch., in Linnaea v. 594. Subin. Merida, June and Sept., 1865 (Schott,3<)2). Xcholac common, bush 6 ft., Mar. 2, 1890. (Stone, 248, in Herb. Acad. Sci. Phila.) ^ESCHYNOMENE AMERICANA Linn. Sp. PI., io6i. Yucatan loc. ignot. (Johnson 45*}. Yucatan loc. ignot. (Schott, 863). -aEschynomene Americana depila var nov. Characters of the species, except that the loments instead of being setose-hispid (asperis. Hirsutis. Sloane) are perfectly smooth. "Herb 2 feet high, abundant in damp places along roads and in open lands near Izamal Oct." (955). To this variety the following plants are referred : Palmer Aca- pulco 102 Manzanillo goi ; Heyde 311, Heyde 6° Lux 6103 Guat- emala ; Sintenis 5560 Porto Rico ; Hitchcock Port Marant, Con- stant Spr. , Lucea, Jamaica; Lloyd Jamaica 1050; Wilson Jamaica 173. Rovirrosa 384 Tabasco ; Botteri 363 Orizaba, Skin- ner, Guatemala ; Wright 124 or 125 Cuba ; Bernardi Hb. San Do- mingo 184. ; Anderson Trinidad ; Hayes Panama 7^7 ; Eggers 202 St. Thomas ; Fendler ijjq Venezuela; Ricksecker 133 St. Croix ; and Donnell-Smith 2283 Esquintla. In the following specimens Mr. Greenman notes that although the loments are more or less setose-hispid in the early stages they later become essentially glabrous ; Sintenis 374* Porto Rico ; Pringle 2515 Jalisco, Don- nell-Smith 4160 Chupadero. Dr. Rose in his enumeration of Dr. Palmer's 1890-91 Mexican collection (Contrib. U. S. Natl. Herb., i. 321) calls attention to this form, Palmer 901 Manzanillo. ^ESCHYNOMENE FAScicuLARis Cham. & Schl. in Linnaea, v. 584. ' "Ruins of Uxmal Sept. 16, 1865." (Schott, 864 in Herb. U. S. Natl. Mus.) Merida June n, 1865, and on road from Merida to Progreso May 7, 1865 (Schott, 276). "Shrubby, 3 feet high, common on roadsides near Tekax, in blossom September" (1126). Axnerimnon Brownei Jacq. PI. Carib., 1760. Dalbergia Amerimnum Benth. "A rare shrub in the forests about Izamal, its reddish-purple flowers appearing in June." (728). Arachis hypogeea Linn. Sp. PL, 741. Peanut. "Herb 2 to 3 feet high, common about old farm lands near Izamal, where it blossoms in October" (997). 364 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Bauhinia Cavanillei nom. nov. Chacouludtok. Pauletia inermis Cav. Ic. t. 409, 1799; Bauhinia inermis (Cav.) Pers. Syn. i, 455, 1805 non Forsk. Fl. ^Egypt, Arab. 85, 1775. Nohcacab and vicinity, Nov., 1865, leaves sudorific, wood very flexible; Kabah, Nov. 24, 1865 (Schott, 702}. BAUHINIA LATIFOLIA Cav. Ic. v. 4, t. 405. Tunkas, 4 feet high, flowers white ; Ticul, 6 feet high, March 3 and 16, 1890 (Stone, 228, 246 and 284, in Herb. Acad. Sci., Phila.). BAUHINIA PORRECTA Sw. Prod. Veg. Ind. Occ. , 66. Merida suburbs and Quinta Encalada, Nov. 29, 1864, and March 26, 1865 (Schott, 8). Bauhiuia splendens H. B. K., Nov. Gen. et Sp. vi, 319. Yucatan loc. ignot., 10 to 15 feet high (Johnson, 32, visa in Herb. Torrey). Bradbury a Schottii sp. nov. Caule scandente glabriusculo, foliis longe petiolatis 3-foliol- atis, foliolis hastatis vel subhastatis mucronatis margine pilosis, stipellis geminiis linearis, pedicellis foliis aequantes solitariis i-floris, bracteis ovato-lanceolatis calyce saepe, longioribus calycis cupuliformis sub 5-fidis: lobis inferioris majusculis, sup- erioris coalitis, lateralis triangularis. Leguminibus sessilis, longe apiculatis, costae prominente percursis inter margine et pars media, semine compressa. Caule 10 pedales, foliis et pedicellis 5 poll, long., foliolis 2.5 poll, long., 2 poll. lat. , flores 1.5 poll, long., leguminis 5 to 6 poll, long., 3 lin. lat. Ad Nohpat, Nov. 24, 1865 (Schott, 718}. Kara in umbrosis Izamal, Nov. (930). BRADBURYA VIRGINIANA (L. Bth) Kuntz Rev. Gen., i. 163. Yucatan, Johnson sine num. specimen in Herb. Torrey Columbia Univ. " Vine, 20 feet, common in brush and forest lands about Izamal, its purple flowers appearing from August until Decem- ber " (833). Yucatan, loc. ignot. (Schott, 867). OESALPINIA BONDUCELLA (L.) Flem. As. Ris., xi, 159. Cojones del Gato. Celestun, near the sea, May 13, 1865 (Schott, 402). OESALPINIA PULCHERRIMA (L) Sw. Obs., 166. Merida. "fragrant," July 25, 1865 (Schott, 570). Merida, Feb. 2, 1864 (Schott, 178, in Herb. U. S. Nat'l Mus.). Silam (68 1). CALLIANDRA GRACILIS Klotz. Saimd. Refug. Bot, t. 294. "An uncommon shrub 20 feet high, at Progreso " (i 178). Mer- ida, August, 1865 (Schott, 844). CALLIANDRA PORTORICENSIS (Jacq.) Bth.Lond. Jour. Bot., iii, 99. Pich. Near Hacienda Uislimchac, April 2, 1866, leaves and flowers undeveloped (Schott, 769). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 365 Canavalia ensiformis (L). de C. Prod ii, 404. Haba. Merida, Feb. i, 1866, in fruit only (Schott, 729). Cassia* sp. . "An interesting plant allied to C. biflora L, but indeterminable in the absence of fruits. The ash-colored twigs and very small leaflets do not correspond with any existing species of that group" (C. L. P.) Leaves alternate fascicled, common rachis 5-8 lines long, leaflets 3-jugal, 1-3 lines long, varying from mucronate or truncate to emarginate, stipules geminate, aristate ; inflorescence solitary, sparse, from the terminal leaf fascicles ; peduncle attenuate, longer than the leaf, jointed at about the middle, flowers large 4-7 lines long. Scrub lands near Sisal, May 6, 1865 (Schott, 414). CASSIA BIFLORA Linn? Sp. PI., 378. "Probably this species, a comparison with the type is, how- ever, necessary" (C. L. P.) Tizimin, March 28, 1866 (Schott, 982}. CASSIA EMARGINATA Linn. Sp. PL, 346. Xtuab. Without locality Valdez (f). North of Merida on the road to Progreso, April 7, 1865 (Schott, 261}. Tunkas, tree 20 feet, flowers orange, March 3, 1890 (Stone, 236, in Herb. Acad. Sci., Phila.). Cassia flavicoma H. B. K., Nov. Gen. et. Sp. vi. 366. " A rare herb, 3 feet high, in the forests of Buena Vista Xbac, flowering in September" (1113). Cassia hirsuta Linn. Sp. PL, 540. Salche. "A common herb, 4 feet high, in waste places and on farms and open lands about Izamal, producing its chrome-yellow flow- ers from July to December" (757, 1090). Cassia leptocarpa hirsuta Benth. Trans. Linn. Soc. Lond.,xxvii. 53i- "A shrub 6 feet high, common near cenotes about Izamal, the bright yellow flowers produced in October " (999); also "frequent in waste places about Izamal, where the plant often blooms sev- eral years in succession" (1016). Cassia Liebxnannii Bth. Trans. Linn. Soc., 27, 549. Along road between Merida and Progreso, May 3, 1865 (Schott, 299}. CASSIA OCCIDENTALS Linn. Sp. PL, 377. Nohcacab, Oct. 19, 1865 (Schott, 975}. * Species determined by Mr. C. L. Pollard. 366 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Cassia polyphylla Jacq. Coll. iv. 104. Ic. Rar. t. 460. " In mimosetis prope Sisal" (Schott, 414). "Shrubby 6 feet high, in brush lands about Izamal, the golden-yellow flowers appearing throughout the year" (391). Tekanto, shrub 3 feet high, Feb. 25, 1890 (Stone, 197, 219, in Herb. Acad. Sci., Phila.). Cassia procumbens Linn. Sp. PL, 380. On the downs at Progreso, May 4, 1865 (Schott, 290). Cassia racemosa Mill. Diet. ed. 8, n. 19. Habinpec. "An abundant tree 60 feet high in brush and forest lands about Izamal, producing its large globular clusters of orange-yellow flowers from February to June" (354). Merida, Aug. 30, 1865. (Schott, 974). Tekanto, tree 20 feet high, flowers bright orange, Feb. 25, 1890 (Stone, 215, in Herb. Acad. Sci., Phila.). CASSIA SERICEA Swz. Fl. Ind. Occ. , 724. Merida, June u, 1865 {Schott, 440). Cassia tristicula H. B. K , nov. Gen. et Sp., vi, 367. Ruins of Uxmal, Sept. 1865 (Schott, 976). Cassia villosa Mill. Gard. Diet., ed. viii, 4. Salche. Suburbs of Merida, Nov. 25, 1864 (Schott, i). Clitoria Mexicana Lk. Enum. ii., 235. "Vine 10 feet, common at Tekax" (1136). Cracca bicolor Bull. Herb. Boiss ii., 444 t. xi. "A common herb 4 feet high, in the forests of Buena Vista Xbac, in bloom in April" (1058). CRACCA GREENMANII Millsp. Field Col. Mus., Bot. i. 299 t. xiii. "An ascending herb 12 to 18 inches high, abundant along roadsides about Izamal, where it is almost without exception more or less browsed by cattle. The flowers appearing through- out the year are pale yellow with a purplish standard" (301). "Abundant near Merida" (Veldez, 69). Tekanto, Feb. 25, 1890- (Stone, 205, 209, in Herb. Acad. Sci. Phila.). CRACCA VILLOSA CINEREA (JL.) Kuntze, Rev. Gen. i. 174. Merida, Aug. 3, 1865 (Schott, 537}. CROTALARIA PUMILA Ortega Hort. Matr. 23. Flats about Nohpat and Nohcacab, Nov. 1865 (Schott, 715}. The legume in these specimens is shortly pediceled, not sessile as noted in description. Our specimens agree fairly well with Miiller Herb. Mex., 664, 1745; and especially with Busla- mente y Rocha's 19 in the Torrey Herb. Dalea diffusa Moric. PI. Nouv. Am. 8. t. 6. "Abundant in old fields and on town lots near Izamal, Nov. Height 4 feet. Flowers a very evasive royal-purple, which, seen at a short distance, seems a glimmer of light between blue and crimson, always attractive " (934). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 367 In general habit our plant agrees with Pringle (1793} Jalisco, 1888, and Palmer (507) Acapulco 1894-5, except that in the former the leaflets are smaller, narrower, more crowded and nearer entire; and in the latter still smaller than our form or the Jaliscan. Leaves in our form 1.75 to 2.25 inches long, leaf- lets .4 inch long, . i inch wide, with glandular punctae strongly marked. DESMANTHUS DEPRESSUS H. & B. Willd. Sp. iv. 1046. Camba-pich. "Ten feet high, rare about Izamal, its white flowers appearing in October" (1018). Diphysa Carthaginensis Jacq. Enum. PI. Carib., 28. About Merida, March 16, 1865 (Schott, 247], April 20, 1865 (Schott, SOS, in Herb. U. S. Natl. Mus.). Diphysa robinioides Benth. ex Bth. & Oerst. 1. c. n. Ououc. • "An abundant tree 60 feet high in the brush and forest lands near Izamal, where it opens its bright golden-yellow flowers in February while the leaves are immature" (344). Yucatan, with- out locality ( Valdez, 5#). Erythrina Corallodendron Linn. Sp. PI. 706. Shrub 5 feet high, with sharp, mostly recurved prickles and crimson flowers, Tekanto, Feb. 25, 1890 (Stone, 217, in Herb. Acad. Sci. Phila.). ERYTHRINA CORALLOIDES Mocq. & Sesse, ex de C. Prod, ii, 413. Merida, Aug. 28, 1865 (Schott, 615}. Loc. ignot. (Schott, Galactia multiflora Robn. Proc. Am. Acad. xxix, 315. "Vine 20 feet, abundant in brush and forest lands about Izamal, producing its mottled flowers from September to March" (566). Also collected in conjunction with 498 in similar habitat. INDIGOFERA ANIL Linn. Mant. 272. Anil. Choh. "Shrubby, 4 to 8 feet high, abundant in all northeastern Yucatan, where it was at one time extensively cultivated, and whence Indigo was exported as late as 1885. To-day (1896) not one plantation exists in the neighborhood of Izamal, which place was once the center of its greatest production" (1057). Merida, Oct. 25, 1865 (Schott, 883). Meibomia albiflora (Salzm) Kuntze, Rev. Gen. i, 197. Yucatan, loc. ign. {Johnson, j6b, Visa in Herb. Torrey, Colum- bia University). Meibomia Neo-Mexicana (A. Gr.)O. K., Rev. Gen. i, 198. Kintah. Chuburna, Oct. 10, 1865 (Schott, 866} ; herb 2 feet high, com- mon in the forests of Tekax, September (1130); herb 10 inches, forests of Buena Vista Xbac (1118). Schott's plant and Gaumer's 1130 are glabrous, while 1118 is finely pubescent. 368 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. MEIBOMIA SCORPIURUS (Sw.) Kuntze, Rev. Gen., 198. "Vine 4 feet, common in shady places near Izamal, October to January" (929). Mimosa asperata Linn. Syst. ed x. 1312. Yucatan, loc. ign. {Johnson, 40, Visa in Herb. Torrey, Colum- bia University). Mimosa somnians Humb. & Bonpl. ex Willd. Sp. PL iv, 1036. Yucatan, loc. ign. (Johnson, jjb, Visa in Herb. Torrey, Colum- bia University). MUCUNA PRURIENS (L.) de C. , Prod, ii, 405. Suburbs of Merida, Dec. n, 1864, in fruit only (Schott, 155). "Vine 25 feet, common on brush lands and old fields, frequently also in forests about Izamal " (918). Myroxylon peruiferum Linn. f. SuppL, 233. Naba. Yucatan loc. ignot. (Schott, 804, in Herb. U. S. Natl. Mus.). PAROSELA DOMINGENSIS (de C.). Dalea Domingensis de C. Tekanto, Feb. 27, 1890, 3 feet high, flowers dull red (Stone, ipj, in Herb. Acad. Sci. Phila.). Phaseolus dysophyllus Benth. PL Hartw. 287. "Vine 20 feet, common in the brush and forest lands about Izamal " (923). PHASEOLUS LUNATUS Linn. Sp. PL 1016. "Vine 10 feet, growth frequent in the forest lands about Izamal" (1059). PISCIDIA ERYTHRINA Linn. Syst. ed. x, 1155. Habi. Yucatan loc. ignot. (Schott, 260). Prosopis juliflora (Swz.) de C. Prod, ii, 447. Xcaoimek. "Tree 40 feet high, common at the Port of Silam, producing its greenish-white flowers in April" (641). Foliage much denser and leaflets larger than in the north Mexican and North American forms. Pterocarpus Draco Linn. Sp. PL 1662. Subinche. "Tree 80 feet high, common in forests about Izamal, develop- ing its yellowish-brown flowers in February " (377). RHYNCHOSIA MINIMA (L.) de C. Prod., ii., 385. Ruins of Nohpat, Nov. 24, 1865 (Schott, 718}. Sesbania grandiflora Poir. Diet, vii., 127. Pico de Flamingo. " Shrub 15 feet high, naturalized at the Port of Silam, produc- ing its large crimson flowers in April " (670). Hacienda Chuca cult? March, 1866 (Schott, JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 369 Sesbania macrocarpa Muhl. ex. Raf. Fl. Lud. 137. " Herb 4 feet high, infrequent on waste lands about Izamal, flowering in September " (907). Stylosanthes biflora (L.) B. S. P. "Frequent at the margin of a large sarteneja on the Cantoila road northwest of Izamal " (908). TAMARINDUS INDICA L., Sp. PI., 48. Tamarindo. Merida, May 20, 1865 (Schott, 356}. OXALIDACE.E. OXALIS BERLANDIERI Torr. Bot. Mex. Bd., 41. Hacienda, Cucul, Sept. 8, 1865 (Schott, 625}. OXALIS LATIFOLIA H. B. K. Nov. Gen. et Sp., v. , 237. Merida, June 16, 1865 (Schott, 490). Aguada and Cenote Nabula, Aug. 8, 1865 (Schott, 918}. MALPIGHIACE^:. Bunchosa glandulosa (Cav.) de C. Prod., i., 581. Sipche. "Shrub 20 feet high, common in the forests about Izamal, the bright yellow flowers produced from February to June" (411). Suburbs of Merida, April 14, 1865 (Schott, 84). Tekanto, 6 feet high, Feb. 27, 1890 (Stone, 192, in Herb. Acad. Sci. Phila.). Gaudichaudia filipendula Juss. infra iii., 594. Chilillo-ak. " Common at Progreso, October " (1138). HETEROPTERYS BEECHEYANA A. Juss. Arc. Mus. Par., iii., 475. In fruit only, Merida suburbs, Dec. n, 1864 (Schott, 158}. Heteropteris Yucatanensis sp. nov. Frutex, foliis opositis ovato-lanceolatis acutis e basi cuneatis integris, petiolis brevis eglandulosis, ramis ad apice tomentosis, paniculis terminalibus paucifloris, pedicellis ultra medium articu- latis, bracteis deltoideis minimus, calycis 8-glandulis albo-tomen- tosis. Ramis brevis 4-6 poll, long, foliis 1-2.5 poll, long, .5-1 poll, lata; petiolis 1-3 lin. long. Frutex 15 pedalis, in terrse inutiliae. Izamal, Sept. (816). Stigmaphyllon lupulus Wats. Proc. Am. Acad., xxi., 461. "Vine 15 feet, infrequent on old stone fences about Izamal, producing its bright lemon-yellow flowers from February to July " (408). Our specimens agree best with Pringle's 4102 from Tamasopo, San Louis Potosi, Mexico, 1892; the leaves varying from orbicular-cordate through ovate-cordate and simply hastate to deeply hastate-lobed. At Oitas, March 31, 1866 (Schott, 771}. Tunkas, March 3, 1890, a woody climber (Stone, 2JO, in Herb. Acad. Sci. Phila.). 370 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Tetrapteris insequalisP Cav. Diss. 9, t., 260. " Uncommon in forests and brush lands near Izamal" (972). ZYGOPHYLLACE^:. TRIBULUS MAXIMUS Linn. Sp. PL, 387. Merida, Feb'y 8, 1865; and March 3, 1865 (Schott, 25, p/). TRIBULUS TERRESTRIS CISTOIDES (L. ) Oliver. Downs at Progreso, April 6, 1865 (Schott, 285). RUTACE.E. ZANTHOXYLUM PTEROTA H. B.'K. Nov. Gen. et Sp., vi., 3. Xic-che. Merida, June n, 1865 (Schott, 450). SIMARUBACE.E. ALVARADOA AMORPHOIDES Liebm. Kjoeb. Vid. Med. , 1853, 100. Suburbs of Merida, Dec., 1864 (Schott, 151). Tekanto, tree 20 feet high (Stone, sine num., in Herb. Acad. Sci. Phila.). Simaruba glauca de C. Ann. Mus. Par., xvii., 323. Xpaxakil. "Tree 100 feet, common in the forests about Izamal, producing its light green flowers in February " (439). SURIANA MARITIMA Linn. Sp. PI., 284. Xpanoil. On the downs at Progreso, April 4, 1865 (Schott, jo6). BURSERACE.E. Protium heptaphyllum(Aubl.) Mch., Kjoeb. Vid. Med., 1873, 55. Copal. Pom. Near the hacienda Cuca, March 26, 1866 (Schott, 757). MELIACE.E. CEPRELA ODORATA Linn. Syst. ed., x., 940. Merida (Schott, 199, in Herb. U. S. Natl. Mus.). Trichilia spondioides Jacq. PI. Carib., 20. Xkulinsis. " Tree 40 feet high, common in the forests about Izamal, pro- ducing its pale green flowers in June " (712). EUPHORBIACE.E. ACALYPHA ALOPECUROIDEA Jacq. Ic. Rar. , iii., 19. " Herb 16 inches high, common in shaded places near Izamal, flowering from July to Dec." (1017). Chochola, Sept. 13, 1865 (Schott, 44). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 371 ACALYPHA SETOSA A. Rich. Fl. Cub. Fan., ii., 204. Merida, 1865 (Schott, 480, 968). Acalypha Yucatanense sp. nov. Miscax. Rhombifolia. Spicis ovoideo-cylindricis breviuscule peduncu- latis, bracteis foem. densis, i-floris, late obovatis, hirsutis, 7-9 dentatis, dentibus triangularis acutis, calycis foem. laciniis ovatis acutis hirsutis, ovario tuberculato et hispido, stylis 3 tenuibus, seminibus laevibus ecarunculatis. Herba pilosa 20 pollicaria, caule erectis simplicis velinferne dubiter ramosis, limbus foliorum .5-1 poll, long, ovatis acutis crenulato-serratis e basi deltoideis, supra et infra pilosus, petiolum limbum longiorum. Ad Pro- greso (1176). « Codieeum variegatum Blume Bijd. 606. Merida, at Quinta del Obispo, cult? March 6, 1865 (Schott, 244). Merida, cult. April 1887 (Millspaugh, 24). Croton ciliato-glanduliferus Ortega, Hort. Matr. 51. Tekanto, Feb. 27, 1890 (Stone, 216, in Herb. Acad. Sci., Phila.). CROTON CORTESIANUS H. B. K. Nov. Gen. et. Sp. , ii. , 83. Merida, Nov. 1864 (Schott, 772). Tekanto, shrub 5 ft., Feb. 25, 1890 (Stone, 20 f, in Herb. Acad. Sci., Phila.). CROTON FLAVENS Linn. PL Jam. Pug. 28. Cenote" de Oambula near Merida, Jan. 20, 1865 (Schott, 172). CROTON LOBATUS Linn. Sp. PI. 1427. Ruins of Uxmal, Sept. 15, 1865 (Schott, 955)- CROTON HUMILIS Linn. Syst. ed x., 1276. Cenote de Oambula, Merida, Jan. 20, 1865 (Schott, 172). CROTON MARITIMUS Walt. Flor. Carol., 239. Progreso, April 4, 1865 (Schott, 209, in Herb. U. S. Natl Mus.). DALECHAMPIA SCANDENS Linn. Sp. PL, 1423. Xmoolcoh. Merida, June 30, 1865 (Schott, 514). EUPHORBIA ADENOPTERA Bertol. Misc. Bot., iji. , 436. " Prostrate herb spreading one foot. Chaltumha road, Octo- ber " (938). The densely floral and folial form with all characters closely aggregate. "Semi-erect 10 inches high, Sitilpech road, November" (939). The more open ascending form. Sisal, Nov. 1865 (Schott, 966). Euphorbia arenaria (Kth.) H. B. K. Nov. Gen., ii., 46. Merida at Quinta del Obispo, Nov. 23, 1864 (Schott, 15, in part). 372 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. EUPHORBIA ARMOURII Millsp. Field Col. Mus., Bot., i., 28. "Herb 18 inches high, uncommon, found only at the mouths of caves, and in very damp, shady places near Izamal, Novem- ber" (975)- Of larger growth, and with young parts more densely hirtellate than in the type. Merida, Cenote" Oambula, Dec. 14, 1864; Quinta del Obispo, Nov. 22, 1864 (Schott, 76). EUPHORBIA BUXIFOLIA Lam. Encyc., ii., 421. Seaside at Progreso, April 4, 1865 (Schott, jo8). Euphorbia dentata Michx. Fl. Bor. Am., ii., 211. Merida, at Quinta del Obispo, Nov. 23, 1864 (Schott, 75). Euphorbia Gaumerii sp. nov. Sacio. Caule glabrae, lignosae, scandenti, ternatim ramoso, ad articu- lationes incrassata, ramis longe articulatis plus minusive pilis strigosis sparsis, foliis oppositis ovato-lanceolatis obtusis vel acutis e basi cuneata, petioii quaterne longiori, glandulis stipul- aribus brevis, cymis ad articulationes ramularum corymboso- paniculatis, polycephalis, ad apice racemoso-paniculatis, tota laxiuscule, pedunculatis divaricatim dichotomis ; foliis floralibus rarius minimis ovato-lanceolatis, involucris pedicillatis turbin- atis adpresse lanatis, lobis spathulatis irreguliter dentato-fim- briatis, glandulis transverse sub-plicatis appendice triple latiori orbiculata minute serrato-dentata, stylis brevibus, stigmatis crassis profunde bi-partitis. Capsula (juniori) glabra, profunde sulcata, coccis obtuse carinatis, semina Frutex scandentis 10 pedalis. Folia 1-2 poll, longa, 9-12 lin. lata, cymse laxiuscule oppositae. Involucris lin. longa, duo-lineam lata. Species, prox. colletioidea Bth. (alectoroctonum). In sylvis ad Buena Vista Xbac (1073). Euphorbia graminea virgata var. nov. Onob kax. "Herb 2 feet high, common in moist places near Tekax, September" (1128). Differs from the species in having longer and virgate branches, larger leaves, smaller involucral lobes, broader and blunt pointed appendages having a tendency to trilobation, and smaller seeds with fewer scrobiculae arranged in two transverse lines, sharper rugae, a sharper triangular apex, and no median line. Euphorbia graminea lancifolia var. nov. '" Herb 18 inches high, rare, railroad bank, northwest of Izamal, November " (969). Branches less quadrangular and not hairy on the angles, lower ovate leaves repand dentate, upper leaves lanceolate, the floral linear on attenuate branchlets. Glandular appendages ovate, seeds longer and more sharply quadrangular than in var. virgata, and with three lines of pits. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 373 EUPHORBIA HETEROPHYLLA Linn. Am. Acad., iii., 112. "Herb 3 feet high, along old fence rows and in old fields about Izamal, in flower from September to December " (903). The usual form of the species with cuneate-lanceolate irregularly serrate leaves, smooth capsules, and virgate sparsely leafy branchlets. Merida, Sept. 30, 1865 (Schott, 960). "This plant is used for washing clothing." Euphorbia heterophylla forma. " Herb 4 feet high, common at Buena Vista Xbac, September " (1109). A peculiar form in which the stem leaves are broadly lanceo- late, entire or minutely and distantly dentate-serrate, strigosely short-hairy beneath; while those of the extended virgate branch- lets are elongated-linear, quite resembling those of var. gramtni- folia Engelm. This form, but with some of the lower leaves, panduriform (E. heterophylla cyathophora (Jacq.) Boiss), was col- lected in 1879 at Fountaindale, Oregon, and Byron, Illinois, U. S. A., by the late Mr. M. S. Bebb. EUPHORBIA HETEROPHYLLA CYATHOPHORA (K. and G.) Boiss de C. Prod., xv., 262. Merida, 1865 (Schott, 961}. This form of a very varied sub- species is completely vested with cyathiform leaves, from those of the base to the floral at the apex. Generally the basal leaves only distinguish the variety, the apical being either lanceolate or linear. The nearest counterpart of this plant was grown by. Dr. Geo. Engelmann from seed sent him from Texas. (See sp. in U. S. Nat. Herb.). Euphorbia lasiocarpa Klot. Nov. Act. xix, Supl. 414. Merida, Aug. 23, 1865 (Schott, sine num.}. EUPHORBIA MAYANA Millsp. Field Col. Mus. Bot., i., 304. " Open grounds at Buena Vista Xbac, April" (1039). Differs from the type collected near Izamal, only in having somewhat deeper and more irregular dentations in the margin of the append- ages. Tekanto, shrub 5-8 feet high, branches short, horizontal, flowers yellowish-white, Feb. 25, 1890 (Stone, 211, in Herb. Acad. Sci. Phila.). Euphorbia pilosula Engelm in litt. " Herb 8 inches, common in the forests of Buena Vista Xbac, August" (1103). EUPHORBIA PILULIFERA PROCUMBENS (de C. ) Boiss. de C. Prod, xv., 21. Merida, at Quinta del Obispo, Nov. 24, 1864 (Schott, j6~). Merida, 1865 (Schott, 967}. "Prostrate herb, abundant in shady places near Izamal, November " (1003). 374 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Euphorbia pulcherrima (Grab.) Willd. Allg. Gart. ii., 27. Merida, at Quinta del Obispo, Jau'y, 1866 (Schott, 727). EUPHORBIA RHYTISPERMA Engelm in Kl. et Gke., p. 34. "Waste grounds at Tekax, September" (1123). Larger and fuller growth than specimens collected at Izamal in 1895. EUPHORBIA SERPYLLIFOLIA Pers. Ench. bot., u, 14. Intermixed with E. pilulifera procumbens collected by Schott, 967, at Merida, 1865. Euphorbia Xbacensis sp. nov. Glabra, caule erectis, quadrangulatis dichotomis, foliis petio- latis integris ovato-lanceolatis acutis e basi cuneata, summis minute hirtis diminutis lanceolatis, involucris minimis extus adpresse hirtis, lobis quadratis fimbriatis, glandulis 4, transverse • avatis, appendice angustissime orbiculatis, margine integris vel obsolete lobulatis, stylis profunde bipartitis apice crassis; cap- sulae hirtis profunde sulcatis, coccae obtuse carinatis, semina grisea, ovate, reguliter foveolate albo in profundis. Bipedalis. Folia inferiora nulla, media semipollicafia longa, bilinea lata, supra minima. § Cyttarospermum prox. E. Acerensce. Kara ad Buena Vista Xbac (1108). Gymnanthes lucida Sw. Prod. Veg. Ind. Occ., 96. Merida, -April 2, 1865 (Schott, 283, ji6, in Herb. U. S. Natl. Mus.). Hura polyandra Baill. Etud. gen. Euph., 543. Jabilla. A small tree 40 feet high, common at Progreso (1144). JATROPHA CURCAS Linn. Sp. PI., 1429. Xcacal che. Merida, May 28, 1865 (Schott, 395}. JATROPHA URENS Linn. Sp. PL, 1429. Chaya. Cercanias, Merida, April 30, 1865, and November (Schott, 496, 700}. JATROPHA URENS STIMULOSA (Michx.) Mull, de C. Prod., xv. , 1101. Xoat. Merida, Nov. 5, 1865 (Schott, 700). Merida, in mimosetis et cercanias, April 12, 1865 (Sc'hott, 496]. " Herb 6 feet high. Com- mon everywhere. Buena Vista Xbac, April " (1069). "The sting causes pain instead of burning or itching." Tunkas common, 4 feet high, March 3, 1890 (Stone, 232, in Herb. Acad. and Sci. Phila.). Mauihot Carthaginensis (Jacq.) Muell. D. C. Prod., xv., 1073. Xhac che. "Herb 8 feet high, common along roads, and on waste lands, near Izamal" (1142). Leaflets nearly panduriform, strongly apiculate. Merida, June 25, 1865 (Schott, 518). The same pan- duriform lobed form. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 375 Manihot Manihot (L.) Cock. Bull. Torr, xix., 1892. Jiicca. Cultivated near the ruins of Kabah, Nov. 26, 1865 (Schott, 957). A form with 7 narrowly lanceolate, almost linear, leaf lobes, not in flower or fruit. Manihot rhomboidea Muell. Arg. in Linn., 34, 205. Chache. Merida, July n, 1865 (Schott, 318). Dr. Schott spells the Maya name Xcaxe. PEDILANTHUS ITZ^EUS Millsp. F. Col. Mus. Bot. , i, 305. Yaxhalal ch.6. Merida, April 10, 1866, in full leaf (Schott, 552). (This species also appears in U. S. Natl. Herb., from Santa Domingo, collected by Wright, Parry and Brummel, without number.) RICINUS COMMUNIS Linn. Sp. PL, 1430. Merida, Feb'y 13, 1865 (Schott, 241). Merida, April 14, 1887 (Millspaugh, 46). TRAGIA NEPET^EFOLIA Cav. Ic. , vi. , 37. . Popox. Merida, Aug. 20, 1865 (Schott, 588); February n, 1865 (Schott, 448). "The Mayas rub their limbs with this plant when suffer- ing pain." ANACARDIACE^:. Anacardium occidentale Linn. Sp. PI'., i., 283. Maranon. Hacienda Tahchebila, Cult? March 31, 1866 (Schott, 765). Astronium sp. "A rare tree 100 feet high." In fruit without leaves, Xcholac, March (582). MANGIFERA INDICA Linn. Sp. PL, 200. Mango. Merida. Cult? March 14, 1866 (Schott, 815). In these speci- mens the panicle is not pubescent, indeed only very sparsely hairy. Spondias lutea Linn. Sp. PL, Ed. ii., 613. Ciruela. Mompin. Suburbs of Merida, cult? April 4, 1865 (Schott, 797). Spoudias purpurea Linn. loc. cit. Ciruela.- Chiabal. "Tree 30 feet high, very abundant in cultivation, the bright- pink flowers appearing in March " (432). " Juntura, flowers red " (704). CELASTRACE^E. Maytenus phyllanthoides Benth. Bot. Voy. Sulph., 54. " Shrub 10 feet, abundant at the port of Silam, April" (643). HIPPOCRATEACE.E. Hippocratea obcordata Lam. Illust., i., 100. Downs at Progreso, April 6, 1865 (Schott, J/7). 376 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. SAPINDACE.E. Bumelia buxifolia Willd. H. B. K. Nov. Gen. et Sp. t., 147. Downs at Progreso, April 7, and Celestun, May 12, 1865 (Schott, 313). Bumelia glomerata Griseb. Mem. Am. Ac., 1863, 518. Puomucuy. Suburbs of Merida, April 14, 1865 (Schott, 341}. "Shrub 15 feet high, abundant in brushlands about Izamal, producing its cephalic whorls of greenish-yellow flowers from March to April " (473). Bumelia microphylla Griseb Plant. Cat. Cub., 165. Merida, March, 1865 (Schott, 341}. "Shrubby, 10 feet high, common on brushlands near Izamal, April" (559, 469 in part). Paullina fuscescens glabrescens Radlk. Mon. Sap., 56. Kexak. About Merida, Dec. 10, 1864 (Schott, 10, in Herb. U. S. Natl. Mus.). Serjania polyphylla Poir. ex. Steud. Nom., ed. 2, ii., 568. About Merida, Dec. 10, 1864 (Schott, 10, part of the sheet upon which the previous species is mounted in Herb. U. S. Natl. Mus.). RHAMNACE.E. Colubrina ferruginosa Brong. Ann. Soc. Nat. x. 369. Yax-Pukim. A small tree 30 feet high, Mascab Pixoy, Jan. 22, 1895 (Armour Exped., 157, 181). "Small tree 30 feet high, abundant in scrub and brushlands about Izamal " (355). Suburbs of Merida, " Qulubmay," April to November (Schott, 13, 331). Gouauia Domingensis Linn. Sp. PI. 1663. Xoxnak. "Vine 30 feet, infrequent in the forests about Izamal, Novem- ber" (959). Merida, Nov., 1865 (Schott num. amiss. 658, in Herb. U. S. Natl. Mus.). Karwinskia Humboldtiana? Zucc Nov. Stirp., i., 351. "Tree! 30 feet high, common from Merida to Progreso" (1171). Although our plant seems to properly fall under this genus and species, yet the ovary is 2-celled with each cell 2-ovuled, and the leaves, though opposite, are not pellucid-dotted. TILIACE.E. CORCHORUS SILIQUOSUS Linn. Sp. Pi. 746. "Shrub 3 feet high, common at Progreso" (1168). Aguada de Uxmal, Sept. 17, 1865 (Schott, 104, in Herb. U. S. Nat. Mus.). Differs from the description in the following characters: More shrubby than suffrutescent ; branchlets with a double hairy line ; flowers single, axillary, scattered'along the branches. Lueha speciosa Willd. Geo. Nat. fr. Neu. Schr. iii., 410. Chacah. At the Hacienda Chacah near Ticul, Oct. 21, 1865 (Schott, 679). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 377 Muntingfa Calabura Linn. Sp. PI. 728. Capolin. " Hacienda San Rafael de Xteppen southeast of Uman, Aug., 1865. ' Hacienda Saragossa, Sept. 9, 1865" (Schott, 554). "Tree 30 feet high, common at Progreso and Merida" (1163). MALVACEAE. Abutilon crispum Sweet, Hort. Brit. ed. i., 53. "Merida at Quinta del Obispo, Nov. 20, 1864" (Schott, 83, in Herb. U. S. Natl. Mus.) ; suburbs of Merida, Dec. 3, 1864" (Schott, 167}. " Herb 5 feet high, common on open lands near Izamal, flowering from August to December" (872). Calcehtoh, March n, 1890, flowers yellow (Stone, 271, in Herb. Acad. Sci., Phila.). Abutilon incanum (Lk.) Sweet, Hort. Brit. ed. i., 53. " Herb 4 feet high, abundant in old fields and waste places near Izamal" (954). Our form agrees best with Palmer's 1281 from Armeria, Mex., 1891. Abutilon sidoides Hemsl. Diag. PI. Nov. 24. Xacmixbil. "Shrubby, 4 feet high, common at Tekax, September" (1133). Our specimens differ from the type in having somewhat longer petioles, and in being more branchy like Pringle's 4583 Jalisco, 1893. ANODA HASTATA Cav. Diss. i., 39. Merida, Nov. 28, 1864 (Schott, 12). Hacienda Saragossa, Sept. 8, 1865 (Schott, 353, in Herb. U. S. Natl. Mus.). Anoda parviflora Cav. Ic. v., 19. Oaiuiioai. "Herb 3 feet high, abundant in old fields near Izamal, pro- ducing its pale-yellow flowers from September to October" (821). Anoda triangularis de C. Prod, i., 459. Fence rows in the suburbs of Uman, April, 1887 (Mills- paugh, 19). Gossypium Barbadense Linn. Sp. PI. 975. Xchup. Suburbs of Merida, Aug. 24, 1865 (Schott, '602} Calcehtoh, March n, 1890 (Stone, 269, in Herb. Acad. Sci. Phila.). Gossypium herbaceum Linn. Sp. PI. 975. Algodon. "Herb 10 feet high, often becoming a 15 foot shrub. Exten- sively cultivated in Yucatan during the civil war in the United States, now only on a small scale for domestic use" (935). Our specimens are of the form G. hirsutum L. and agree with Berlandier's Texano-Mexican 313, and Simpson's Florida speci- mens of i! Gossypium religiosum Linn. Syst. ed. xii. 642. Suburbs of Merida, August, 1865 (Schott, 602}. 378 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Hibiscus elatus Sw. Fl. Ind. Occ. ii, 1218. Xhol6. Hacienda Guayalu, cult? Sept. ig, 1865 (Schott, 629}. Hibiscus mutabilis Linn. Sp. PI. 977. Flor de Cortejo. Cultivated at Merida, Feb. 16, 1866 (Schott, 744). HIBISCUS TUBIFLORUS Moc. & Sesse, de C. Prod. i. 447. Tunkas, 3 to 4 feet high, flowers rose-red, March 3, 1890 (Stone, 257], in Herb. Acad. Sci. Phila. ). Malachra capitata Linn. Syst. ed. xii. 458. At the Aguada de Uxmal, Sept. 17, 1865 (Schott, S8j). Malvastrum tricuspidatum A. Gray, PI. Wright i. 16. Malva. M. Coromandelianum Garcke. "Shrubby, 4 feet high, abundant in old fields near Izamal, October" (1020). Our plant agrees with that of P. Sintenis from Porto Rico. MALVAVISCUS ARBOREUS Cav. Diss. t. 48. Two quite distinct forms of this species are found in our region : The one with small obtuse slightly and irregularly crenate leaves (^ to i% inch long by ^ to ^ inch broad), col- lected only along the coast. (Gaumer, Silam, April, 1895, Schott Downs at Progreso, April, 1865, 271); the other with large acute crenate leaves (i to 3 inches long by ^ to 2 inches broad), found inland (Gaumer 580, Millspaugh, Armour Exped. 60, Schott. Merida, Jan. 1865, //// and Ruins of Uxmal, Sept. 15, 1865, 643}. The leaves of the form from the coast have a few scat- tered pilose hairs beneath, those of the inland form scattered stellate hairs, while in the specimens from the more humid and higher region of Uxmal the leaves are densely woolly. SIDA ACUTA CARPINIFOLIA (L.f) K. Schum Fl. Braz. Fasc. cix. 326. " Herb 4 feet high, frequent in brushlands about Izamal (902); and in the forests about Buena Vista Xbac, April " (1054). Tekanto common, Feb. 27, 1890 (Stone, 194, in Herb. Acad. Sci. Phila.). Sida anomala St. Hil. Fl. Bras. Mer., i. 177. Merida, Sept. 25, 1865 (Schott, 116, in Herb. U. S. Natl. Mus.). SIDA SUPINA PILOSA (Cav.). S. pilosa Cav. Diss. i. 9. t. 8. Tekanto, Feb. 27, 1890 (Stone, 196, in Herb. Acad. Sci. Phila.). Wissadula mucronulata A. Gray, Bot Mex. Bound 39. Ounikax. "Herb 5 feet high, common in old fields about Izamal, Octo- ber" (968). Our plants agree with Pringle 4603 Jalisco, Mex., which have, however, a much lighter upper surface to the leaves. Wissadula tricarpellata Robn. & Greenm. "Herb 2 feet high, common in open lands at Buena Vista Xbac, April" (1056). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 379 BOMBACACE.E. CEIBA CASEARIA Medic. Malv. , 16. Merida, Feb. 6, 1865 (Schott, 204). Tekanto, March 9, 1890 (Stone, 224, in Herb. Acad. Sci. Phila.). CEIBA SCHOTTII Brit. & Baker. Jour. Bot. xxxiv, 173. Merida, Aug. 1865 (Schott, 205], Type collection. PACHIRA FASTUOSA (Sesse) Decne. Fl. des Serres, xxiii, 48. Merida, Sept. 1865 (Schott, 205}. QUARARIBEA FiELDii Millsp. Field Col. Mus. Bot. i. 309. Maha. Fine fruiting specimens from Merida at Quinta del Obispo Nov. 18, 1864 (Schott, 18}. "The flowers are used to flavor chocolate." Fruit ovoid rusty-downy, its lower two-thirds enveloped by the persistent calyx, the apex truncate-apiculate, i^ inches long, y^ inch diameter. STERCULIACE.E. AYENIA PUSILLA Linn. Syst. ed. x, 1247. "Herb 2 feet high. Abundant in open lands about Izamal, April " (1061). Ayenia sp. nov? (Yucatanense). " Herb 4 feet high. Common in forests at Buena Vista Xbac. In fruit but without flowers, April" (1052). Foliis longe petiolatis ovato-lanceolatis, acuminatis e basi truncatis, grosse et irreguliter dentatis, strigose hirsutis capsula dense hirsutis, longi pedunculatis, semina orbiculatis rufo-macu- latis. Folia ij^ -2^ poll. long. 5-10 linea lata ; petiola i-ij^ poll. long. Buettneria Carthaginensis Jacq. Stirp. Am. Piot. 41. Xtexak. "Shrub 15 feet high, common in forests about Izamal, putting forth its light-green flowers in August" (786). Our plants are much nearer the Bolivian form than that of other Mexican stations. GUAZUMA POLYBOTRYA CaV. Ic. Hi. 51. Suburbs of Merida, August to December, 1865 (Schott, 148}. Merida, April 14 (Schott, 342, in Herb. U. S. Natl. Mus.). HELICTERES BARUENSIS Jacq. Enum. PI. Carib., 30. Outup. Merida, June 14, 1865 (Schott, 397}- (792 in Herb. U. S. Natl. Mus.) MELOCHIA TOMENTOSA Linn. Syst. Ed. x, 1140. Merida, December, 1864 (Schott, 608). Ticul, flowers blue, March 12, 1890 (Stone, 276, in Herb. Acad. Sci., Phila.). STERCULIA CARTHAGINENSIS Cav. Diss. vi, 353. Borders of brushlands at Uman. April, 1887 (Millspaugh, 8). 380 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. Triumfetta semitriloba Jacq. Enum. PL Carib. 22. Ochmul. Tizimin, March 28, 1866 (Schott, 759). "Shrub 10 feet high, infrequent in the brushlands aboul Izamal, November" (1005). WALTHERIA AMERICANA Linn. Sp. PI. 941. W. Indica L. in prev. contrib. Charcos de Celestun, May 13, 1865 (Schott, sine num.}. Calcehtoh, March n, 1890 (Stone, 268, in Herb. Acad. Sci. , Phila.). GUTTIFER^:. Clusia flava Jacq. Enum. PI. Carib., 34. Chunup. Hacienda de Cnable", August 8, 1865, used as a remedy for syphilis (Schott, 539, Amoreuxia palmatifida Moc & Sesse de C. Prod ii, 638. "Shrub 4 feet high, frequent at Progreso " (1155). MAXIMILIANA HIBISCOIDES (H. B. K.) Kuntze Rev. Gen. 44. Between Oitas and Tizimim, March 23, 1866 (Schott, 752). Tek- anto, March 9, 1890 (Stone, 223, in Herb. Acad. Sci., Phila.). FLACOURTIACE.E. Samyda serrulata Linn. Sp. PI. 558. Puus Mucuy. Near Merida, April 22, May i, June 25 and 29, 1865 (Schott, 6oj). "Tree 25 to 40 feet high, common in brushlands near Izamal, developing its white flowers from May to October" (699, 858, 1063). TURNERACE.E. TURNERA DIFFUSA APHRODisiACA (Willd) Urban, Jahrb. Bot. Gard. Berol ii, 127. Hacienda Saragossa, Sept. 9, 1865 (Schott, 889). PASSIFLORACE^:. PASSIFLORA FOETIDA Linn. Sp. PI. 959. P. Ciliata Dryand. Ait. Hort. Kew. ed. i, iii. 310. Calcehtoh, March ii ; Ticul, growing over the church, March 16, 1890. Flowers white, filaments purple, pistils crimson, stigma green (Stone, 270, 286, in Herb. Acad. Sci., Phila.). Passiflora pulchella H. B. K., Nov. Gen. et Sp. ii, 134 ? "Vine 10 feet, uncommon in forests near Izamal, blossoming in September" (796). Passiflora suberosa Linn. Sp. PI., 958. Merida, October 10, 1865 (Schott, 898}. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 381 CARICACE.E. CARICA PAPAYA Linn. Sp. PI., 1036. Cult ? Quinta del Obispo, Merida, March, 1865 (Schott, 245). LOASACE.E. GRONOVIA SCANDENS Linn. Sp. PL, 202. Merida, September i, 1865 (Schott, 626}. LYTHRACE.E. PUNICA GRANATUM Linn. Sp. PL, 676. Cult ? Merida, May 22, 1865 (Schott, 40)-. RHIZOPHORACE.E. RHIZOPHORA MANGLE Linn. Sp. PL, 634. Yucatan ad Manglares, Nov. 9, 1864 (Schott, num. amiss.}. MYRTACE^:. PIMENTA OFFICINALIS Lindl. Coll. Bot. t. 1 9. Pimiento. Myrtus Pimento, L. , P. vulgaris Wight. Merida, cult ? April 30, 1865 (Schott, 358\ PSIDIUM GUAJAVA Linn. Sp. PL ed. i, 470. Guayaba. Cult. Merida, March 23, 1865 (Schott, 257). COMBRETACE.E. BUCERAS CATAPPA (Linn.) Hitch. Mo. Bot. Card. i8gj, 85. Almendra. Terminalia Linn. Hacienda San Rafael Xteppen, August 7, 1865 ; Hacienda Cucul, near Merida, September 8, 1865 (Schvtt, 550, 921} ; Ticul, March 13, 1890 (Stone, 280, in Herb. Acad. Sci., Phila.). Conocarpus sericea Forst, D.on. Gen. Syst. , ii, 662. Xtabche. Botoncillo. "A densely silky sericeous shrub 20 feet high, abundant on the borders of all salt marshes along the coast. Progreso " (1164) (Schott, 266, 267). This form is distinct from C. erecta in all its characters and should (according to our specimens) be kept apart. Gyrocarpus Americanus Jacq. Select. Am. 282. Xkis. "Tree 80 feet high, common in the forests about Izamal, pro- ducing its large cymose greenish flowers from March to June " (491, 530). Yucatan loc. ignot. (Schott, fjo, in Herb. U. S. Nat'l Mus.). UMBELLIFER^E. Hydrocotyle prolifera Kellogg, in Proc. Calif. Acad. i, 15. ''Herb 4 inches high, abundant about the aguada of Xcholac, February " (445). Our specimen agrees with M. Bourgeau's 400 from the banks of a canal near Mexico City- 382 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. LENNOACE^:. Lennoa cserulea Fourn. Bull. Soc. Bot. Fr., xvi, u. " In the forests of Buena Vista Xbac, September" (1116). MYRSINACE^:. JACQUINIA ARMILLARIS Jacq. Enum. PL Carib., 15. Muyche. Seaside at Sisal, May 15, 1865 (Schott, J5/). The same unarmed form described on p. 312, Contrib. ii ; there is, however, an unnumbered specimen in Herb. U. S. Nat'l Mus., collected at Progreso, April 4, 1865, by Dr. Schott, in which the leaves are characteristically armed at the tip. PLUMBAGINACE.E. Plumbago Capensis Thunb. Prod. PI. Cap. 33. Embelezo. " Shrub 4 feet high, in general cultivation in towns on the peninsula" (1151). PLUMBAGO SCANDENS Linn. Sp. PI., 215. Xcabaac. Merida, June, 1865 (Schott, 612}; Merida, Nov. 14, 1864 (Scholt, 29, in Herb. U. Nat'l Mus.). SAPOTACE^:. ACHRAS SAPOTA Linn. Sp. PI., 470. Ya. Merida, cult ? March 23, 1865 (Schott, 258). CHRYSOPHYLLUM CAINITO Linn. Sp. PI., 192. Cainito. " Tree 30 feet high, common in the forests about Izamal, pro- ducing its cream-colored flowers in August " (896). Cultivated at Merida, Quinto del Obispo, Dec. 24, 1864 [Schott, 72). Dipholis salicifolia A. de C., de C. Prod, viii, 188. Xac-chum. "Tree 40 feet high, rare in the forests of Buena Vista Xbac, April" (1047). Flowers more densely crowded than the Florida U. S. form, and than 305 Flora Domingensis of Wright, Parry & brummel. EBENACE.E. Diospyros Ebeiium Koen, Phys. Salsk. Hand, i, 176. Tauch. Ya. Sapote Negro. Hacienda de Chabl£ (cult ?) August 8, 1865 (Schott, 542). APOCYNACE^:. Echites biflora Jacq. Enum. PI. Carib., 13. In mangrove thickets at Sisal, Nov. 9, 1865 (Schott, 812]. ECHITES SUBSAGITTATA Ruiz &,Pav. Fl. Peru., ii, 19. E. microcalyx A. de C., Hacienda Saragossa, September 8,1865 (Schott, 674). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 383 Echites torulosa Linn. Sp. PL ii, 307. "Vine 10 feet, common in brushlands about Izamal, producing its lemon-yellow flowers in August" (806, 883). Echites umbellata Jacq. Enum. PI. Carib., 13. Sisal, May 9, 1865 (Schott, 38). Macrosiphonia Berlandieri A. Gray, Syn. Fl. Am. ii, i, 83. Yucatan, loc. ignot. et sine die (Schott, sine num.}. Nerium Oleander Linn. Sp. PI. 305. Narciso. Yucatan loc. ign. (Valdez, 8 " Colorada, e blanca "). Probably from cultivated plants at Merida. Merida. Cult. April, 1865 (Schott, 813}. Plumeria pudica Jacq. Enum. PI. Carib., 13. Cult ? Camino de Sisal near Pozo del Toro, May 7, 1865 (Schott, 428, 429}. PLUMERIA RUBRA Linn. Sp. PL, 209. Cult? Merida, April to August, 1865 (Schott, 321, 323, 324. flor rubro ; 670 flor alba). All of these labels are associated with one specimen of the above species. RAUWOLFIA HETEROPHYLLA Willd. ex. Roem. & Schult. Syst. iv, 805. Suburbs of Merida, April 14, 1865 (Schott, 431). Stemmadenia insignis Miers. Apocyn. S. Am., 76. Laurel. " Merida " (Schott, type 430). Merida, April, 1887 (Millspaugh, 27). Only seen in cultivation in the public parks. The specimens in Herb. Schott bear a close resemblance to Taberncemontana citrifolia Linn. TABERN^MONTANA ACAPULCENSIS Miers Apocy. S. Am., 57. TJoupek. " Merida, March, 1865 (Schott, type 432). Along fence rows, campo beyond Uman, April, 1887 (Millspaugh, 34). THEVETIA NEREIFOLIA Juss. ex. Steud. Nom. ed. 2, ii, 680. Suburbs of Merida, April n, 1865 (Schott, 321}. Quinta del Obispo (Schott, sine die sine num.}. Thevetia spathulata sp. nov. Foliis ovato-spathulatis vel (junior) oblonceolatis obtusis vel subacutis, margine integris, supra glabris et nitidis obsolete ret- iculato-venosis nervis lateralibus, centrali obliquus subtus pallidis glabris, cyma terminalia laxiflora glabra, bracteis traingulo- lanceolatis, deciduis, lobis calycinis lanceolatis mucronato-acum- inatis glabris, tubo corollae vix brevioribus. Frutex 20 pedalis Ramuli teretes glabris, cortex albo-chartaceis. Folia 2-4 poll, long., 6-14 lin. lat. , petiolo 2-4 lin. long. Cymae folio subse- quantes. Flores aurea-viridis 2 poll, long., pedicellis poll. long. Lobi calyces 5 lin. long., 2 lin. lat. Tubus corollae intus apice strigose hirtis, appendicibus 5 cornatiformis. Affin. T. cunifolice. 384 FIELD COLUMBIAN MUSEUM— BOTANY, VOL. i. Although there is a great variation in the shape of the juvenile leaves — the mature only being constant and typical — I have little hesitancy in referring the following young plants to this species, Schott, 321, Merida, 1865 ; Gautner, 7, Cozumel Island, 1885 " new species?" (Oliver); and Gaumer, 678, "common at the Port of Silam, April, 1895." Road beyond Xcholac, 15 feet high, flowers lemon-yellow, March 2, 1890 (Stone, 255, in Herb. Acad. Sci., Phila.). VINCA ROSEA Linn. Syst. ed x, 944. Suburbs of Merida, common as a roadside weed. "April 14, 1887 (Millspaugh, 44). ASCLEPIADACE.E. ASCLEPIAS CURASSAVICA Linn. Sp. PI., 314. "Herb 3 feet high, abundant in damp situations near Izamal, its yellow flowers produced throughout the year " (556). Sub- urbs of Merida, Jauuary 5, 1865 (Schott, 182). METASTELMA SCHLECHTENDALII Decne. in de C. Prod, viii, 513. Tekanto, Feb. 25, 1890 (Stone, 203, in Acad. Sci., Phila.). CONVOLVULACE^:. EVOLVULUS ALSINOIDES Linn. Sp. PI. 392. " Herb 18 inches high, common in the forests of Buena Vista •Xbac, April" (1067). Merida, June, 1865 (Schott, 64}. IPOMCEA BONA-NOX Linn. Sp. PI. ed. ii, 228. Nohcacab, Oct. 20, 1865 (Schott, 684). Ipomcea cissoides Griseb. Fl. Brit. W. Ind. 473. "Vine 10 ft., abundant in old fields about Izamal, producing its satiny-white flowers in November" (982). Range between Sacacab and Tikul, Oct. 20, 1865 (Schott, 905}. IPOMOZA COCCINEA Linn. Sp. PI. 228. "Vine 20 ft., common in old fields about Izamal, producing its bright red flo\vers from October to December " (981, 990). IPOMOZA FASTIGIATA Sweet Hort. Brit. ed. i, 288. "Vine 15 ft., common in old fields near Izamal " (915). Ipomcea hederacea Jacq. Coll. i, 124. "Vine 20 feet, common in towns and the fields about Izamal, blossoming in October and November. Flowers deep sky-blue changing to rose on drying " (919, 983). Merida, 1865. (Schott, 906}. "Vine 30 feet, rare at Buena Vista Xbac; flowers bright rose- pink " (769). In Gaumer's 919 and 983 the flowers are large and longpeduncled and the leaves 7 inches broad by 5 inches long, JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 385 and scattered strigose-hairy. In Schott's 906 the leaves are small, about 2 by i^ inches, strigose-hairy like the preceding. In Gaumer's 769 the leaves are small as in Schott's form, but are densely covered both above and beneath with long closely- apressed silky hairs. Ipoxncea pentaphylla (L.) Jacq. Coll. ii, 297. Sooac " Vine 20 feet, abundant on roadsides about Izamal, producing its white flowers in October " (985^). Merida, Nov. 7, 1865. (Schott, 26). IPOMCBA PUNCTICULATA Benth. Bot. Voy. Sulph. 136. "Vine 20 feet, abundant in towns and fields, producing its reddish-purple flowers from September to February" (329). Ipomoea sinuata Orteg. Hort. Matr. Dec. 84. "Vine 10 feet, frequent in brushlands and cornfields about Izamal " (1093) JACQUEMONTIA ABUTILOIDES Benth. Voy. Sulph., 34. " Mountains between Hacienda Sacacal and Ticul, Oct. 20, 1865 (Schott, 68 1\ Tekanto, Feb. 1890 (Stone, 206, in Herb. Acad. Sci. Phila.). JACQUEMONTIA PENTANTHA G. Don., Gen. Syst. iv, 283. Yaxhal. "Vine 10 feet, common in brushlands about Izamal, October to January " (917). Suburbs of Merida, Nov. 14, 1864. (Schott, 344). Tunkas, March 3, 1890 (Stone, 231, 235, in Herb. Acad. Sci. Phila.). Jacquemontia tamnifolia Griseb. Fl. Brit. W. Ind. 474. Vine 20 feet, common in the forests of Buena Vista Xbac, Aug. (1121). BORRAGINACE.E. CORDIA DODECANDRA de C. Prod, ix, 478. Thirty feet high, flowers vermilion with a tinge of orange ; Tekanto, Feb. 27, 1890 (Stone, 198, in Herb. Acad. Sci. Phila.). CORDIA GERASCANTHOIDES H.B.K. Nov. Gen. et. sp. iii, 69. Bohom. " Tree 100 feet high, common in forests where it blooms in April. Flowers very profuse, aromatic and durable. This tree yields one of the most valuable timbers of the country, much used in wagon-making and wherever strength and elasticity are required. Buena Vista Xbac " (1066). Aguada San Antonio, Xcanchacan, March I, 1866 (Schott, 745). CORDIA GLOBOSA (L.) H. B. K., Nov. Gen. et Sp. iii, 76. Merida, 1865 (Schott, 970.} "Shrub 12 feet high, rare, Kan- tunil road near Izamal, producing its white flower in June" (745). "Shrub 30 feet high, in brushlands near Izamal, Sept." (801). 386 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. CORDIA SEBESTENA Linn. Sp. PI., 190. Kopte Merida, Dec. 14, 1864 (Schott, 173) ; Sisal, May 10, 1865 (Schott, 386). EHRETIA TINIFOLIA Linn. Syst. ed. x. , 936. Roble. Merida, Apr. 14, 1865 (Schott, 800). HELIOTROPIUM CURASSAVICUM Linn. Sp. PL, 130. Ticul, March 12, 1890 (Stone, 275, in Herb. Acad. Sci.,Phila.). Heliotropium fruticosum Linn. Syst. ed. x, 913. Merida, June, 1865 (Schott, 364). HELIOTROPIUM INUNDATUM Sw. Prod. Veg. Ind. Occ. , 40. Merida, Aug. 21, 1865 (Schott, 968). HELIOTROPIUM PARVIFLORUM Linn. Mant. ii., 201. Merida, January 4, 1865 (Schott, 175). TOURNEFORTIA GNAPHALODES R. Br. Prod. , 496. Downs at Progreso, April 3, 1865 (Schott, 305). VERBENACE.E. AVICENNIA NITIDA Jacq. Enum. PI. Carib. , 25. Mangle bianco. ' Celestun, May 12, 1865 (Schott, 361). AVICENNIA OFFICINALIS Linn. Sp. PI., no. A. tomentosa Jacq. Celestun, May 12, 1895 (Schott, 473}. Citharexylum quadrangulare Jacq. Enum. PI. Carib., 26. Merida, Aug. and Sept. 1865 (Schott, 89 et spec, sine num.) CLERODENDRON ACULEATUM (L.) Griseb. Fl. W. I., 500. Merida, (Schott, 27). Clerodendron Colebrookianum Walp. Rep. iv, 114. " Rarely cultivated, one bush 4 feet high at Izamal blooming in Sept. (909). DURANTA PLUMIERI Jacq. Select. Am., 186.* Xcambococh6. D. repens and spinosa L. Merida, June n, 1865 (Schott, jSi). LANTANA CAMARA Linn. Sp. PI. , 874. Oregano Silvestre. Xo-hexnuc. " Shrubby, common in brushlands about Izamal, flowering from August until January" (808). "Abundant in a wild state" (Valdez, 60). Tekanto, shrub 6 ft. high, Feb. 25, 1890 (Stone, 213, in Herb. Acad. Sci., Phila.). *Jacquin's name (1763)13 accepted by Linnaeus in his third edition Sp. PI. 1764. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 387 Lippia uxnbellata Cav. Ic., ii., 75. "Shrubby, 10 feet high, uncommon, found only on the ancient » mounds southwest of Izamal " (871, 971). Our form is not so densely hairy either on the involucre or the under surface of the leaves as 4389, Heyde & Lux, Guatemala. PETREA ARBOREA H. B. K. Nov. Gen. et sp. ii. , 282. "Uncommon at Calcehtoh. A woody vine, with violet-like flowers deeper colored than the purple calyx, and with a spot on the middle petal." March n, 1890 (Stone, 259, in Herb. Acad. Sci., Phila.). PRIVA LAPPULACEA (L.) Pers. Syn., ii., 1807. Oallunoay. P. echinata Juss. Suburbs of Merida, and Quinta del Obispo, Nov. to Dec., 1864 (Schott, 22 and 23). Tekanto, Feb. 27, 1890 (Stone, 186, in Herb. Acad. Sci., Phila.). LABIATE. Cedronella Mexicana Benth. Lab. Gen. et Sp., 502. Toronjil. Campo near Merida, April 14, 1887 (Millspaugh, 45). HYPTIS PECTINATA (L. ) Poit. , Ann. Mus. Par., vii., 474. " Herb 5 feet high, common on brushlands about Izamal, November " (943). Hyptis suaveolens (L.) Poit., Ann. Mus. Par., vii., 472. " Herb 3 feet high, common along roads and in old fields about Izamal, November " (942). Leonurus glaucescens Bunge, Ledeb. Fl. Alt., ii., 409. Near Kikil, March 27, 1866 (Schott, 773}. Cult? OCIMUM BASILICUM Linn. Sp. PI., 833. Alvaca. Campo near Merida, escaped? April 14, 1887 (Millsparigh, 44). OCIMUM MICRANTHUM Willd. Enum. Hort. BeroL, 630. Suburbs and streets of Merida, June 23, 1865 (Schott, 511). Yucatan loc. ignot. (Stone, sine num., in Herb. Acad. Sci., Phila.). Calcehtoh, March ii, 1890 (Stone, 265, in Herb. Acad. Sci., Phila.). Rosmarinus officinalis Linn. Sp. PL, 33. Campo at Uman, escaped, April, 1887 (Millspaugh, 31). SALVIA COCCINEA Buchoz. ex Etling. Salv.. 23. Merida, suburbs, April 14, 1865 (Schott, 160, loc. ignot., 760, in Herb. U. S. Natl. Mus.). Sitilpech, and Tekanto, Feb. and March, 1890 (Stone, 188, 256, in Herb. Acad. Sci., Phila.). 388 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. SOLANACE.E. Capsicum annum Linn. Sp. PL, 270. Chile. Cultivated at Merida, Feb'y n, 1865 (Schott, 237}. Campo near Merida, April 14, 1887 (Millspaugh, 43). CAPSICUM FRUTESCENS Linn. Sp. PL, 189. Ticul (Stone, 277, in Herb. Acad. Sci., Phila.). CESTRUM DIURNUM Linn. Sp. PL 277. Suburbs of Merida, April 28, 1865 (Schott, 123). DATURA STRAMONIUM Linn. Sp. PL, 255. Chamico. Mehen-Xtocu. " Herb 4 feet high. A very common weed in places, especi- ally near small towns. In bloom from June to December, flowers pure white" (1062). Nicotiana glutinosa Linn Sp. PL, 259. Kooo. Campo near Merida, May, 1865 (Schott, 486]. Nicotiana pilosa DunaL, de C. Prod., xiii., i., 559. Kooo. "Waste grounds, campo near Uman, April, 1887 (Mill- spaugh, 39). Physalis sp. " Shrubby below, 3 feet high, very rare, found in fruit only, Sept. and Oct., along the road to Merida near Izamal " (1000). Physalis angulata Linn. Sp. PL, 262. Jerba Mora. "Herb 4 feet high, abundant in fields and gardens about Iza- mal, in blossom throughout the year " (479). Physalis fcetens Poir., Encycl. SuppL, ii., 348. Merida, Nov. 28, 1864 (Schott, 5). Physalis pubescens Linn. Sp. PL, 262. Suburbs of Merida, Dec. 4, 1864 (Schott, 5). SOLANUM AMAZONICUM Ker-GawL, Bot. Reg., t.,7i. Xkon-yaxik. "Shrubby, 6 feet high, abundant in opens and brushlands about Izamal, producing its bright-blue flowers throughout the year " (366). Tunkas common, flowers bright purple," March 3, 1890 (Stone, 234, in Herb. Acad. Sci., Phila.). Solarium calicarpaefolium Kth. and Bou., Ind. Sem. Hort. BeroL, App. 10. Shrub 4 feet high, uncommon at the port of Oilam, producing its white flowers in April (652). Solaiium fuscatum? Linn. Sp. PL ed., ii., 268. Xpacanul. Merida, July 25, 1865; Cenot£ Yopop, on the road from Merida to Progreso, April 7, 1865 (Schott, 310). Grisebach sp. cit. Flor. Brit. W. I. places Yucatan in brackets after this species without farther reference to authority. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 389 Solanum Jamaicense Mill. Card. Diet., Ed. viii. 17. " Shrubby, 10 feet high, uncommon in brushland about Iza- mal, April to Aug." (595). Solanum Juripeba Rich, Soc. Hist. Nat., Par. i. 107. He-Bech. "Shrubby 10 feet high, common in the forests about Izamal, producing its greenish white flowers from Sept. to Oct." (856). In our specimens the thorns are flatly compressed and straight, spinescent on the midrib above and below, also not rare on the calyx, the leaves are subentire and very unequal at the base. Solanum Mammosum Linn. Sp. PI., 267. " Herb 10 feet high, frequent on roadsides and in forests about Izamal, blossoming in October" (998). Solanum Melongena Linn. Sp. PL, 266. Berengena. Cultivated at Merida (Schott, 238), not in flower Feb. n, 1865. Solanum rostratum Dun., Hist. Solan., 234. "A common herb at Tekax, producing its lemon-yellow flow- ers in September" (1137). SOLANUM TORVUM Sw. Prod. Veg. Ind. Occ. , 47. "Shrubby, 4 feet high, common at Progreso " (1167) SOLANUM VERBASCIFOLIUM Linn. Sp'. PL, 263. "Shrubby, 10 feet high, abundant in waste places and brush lands, flowering throughout the year, Izamal" (581). Suburbs of Merida, April 14, 1865 (Schott, 339). SCHWENKIA AMERICANA Linn. Gen., ed. vi. 567. "Along railroad near Izamal" (969 pt.). SCROPHULARIACE^:. Angelonia angustifolia Benth. , de C. Prod., x. 254. Boca dela Viaja. " Herb i to 3 feet high, rarely cultivated at Izamal, where it produces its deep-blue flowers throughout the year " (544). Cul- tivated for its medicinal properties " (Valdez, jp). BUCHNERA MEXICANA Hemsl. Biol. Centr. Am. Bot. , ii. 457. Grassy fields at Nohpat, Nov. 24, 1865 (Schott, 826). CAPRARIA BIFLORA Linn. Sp. PL, 628. " Suffrutescent 4 feet high, common in brushlands about Izamal, March" (409, 590 in part). "Growing wild near Merida" (Valdez, 98). Merida, about houses, Nov. 30; and at the Cenote Dambula Dec. 14, 1864 (Schott, 455, 70). Conobea pusilla (Benth.) Benth. & Hook. f. Gen., ii. 951. "Herb 3-8 inches high, common in shady places near Izamal, producing its violet-blue flowers from July to August" (764). 3QO FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. CAPRARIA SAXIFRAG^EFOLIA Cham. & Schl. in Linn., v. 105. Tekanto, flowers light blue, only one specimen seen, Feb. 28, 1890 (Stone, 182, in Herb. Acad. Sci., Phila.). MONNIERA MONNIERA (L.)Britt. , Mem. Torr. Club., v. 292. Xaxcach. "Prostrate herb, abundant at the Aguada de Chulubmay, 9 miles east of Izamal, March" (1096). MONNIERA PROCUMBENS (Mill) Kuntze Rev. Gen., 463. Herpestis chamaedryoides H. B. K. Merida, Aug. 29, 1865 (Schott, 616). Tekanto, Feb. 27, 1890 (Stone, 195, in Herb. Acad. Sci.). Phila. BIGNONIACE.E. Adenocalymna sp. Chacanicab. "A bijuco, very common in the forests about Izamal, produc- ing its gamboge-yellow flowers in April and May " (575). Bignonia aequinoctialis Linn. Sp. PL, 869. Chacanicab. " Vine 40 feet, frequent in the forests near Buena Vista Xbac, April" (1068, 1098). Yucatan loc. ignot. (Schott, JQp), " uni- • versally used as binding in constructing thatch roofs." Bignonia diversifolia H. B. K. ? Nov. Gen. iii., 133. Chacxnetoloc. " Vine 40 (795) to 100 feet, uncommon in the forests about Izamal, producing its purple flowers from June to Sept.5' (725, 795). Oolak, Xcolak, Merida, June i and Aug. 6, 1865 (Schott, 406, 560}. Bignonia mollis Vahl? Eel. Am. ii., 46. Sacak. "Vine 40 feet, common in the forests about Izamal, producing its reddish-purple flowers in June" (739). Bignonia Unguis-cati Linn. Sp. PI. 623. Xcanlol-ak. "Vine 20 feet, common in the forests about Izamal, flowers yellow, produced in March " (507). Merida, May 20, 1866 (Schott, 776}. CRESCENTIA CUJETE Linn. Sp. PI., 626. Huas. Merida, June, 1865 (Schott, Parmentiera cereifera Seem., Bot.Voy. Herald, 182. Xcat-cunc. Merida, Aug. 25, 1865 (Schott, 382]. Leaves, inclusive of the petiole, i inch long. " Shrub 12 feet high, common about Izamal, producing its neutral-green flowers throughout the year" (338). Leaves, including petiole, 2 to 2^ inches long. PARMIENTERA EDULIS Mocq. de C. prod, ix., 244. Kaat. Merida, Quinta del Obispo, cult? March 12, 1865 (Schott, 242}. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 391 Pithecoctefcium hexagonum de C. Prod, ix., 195. Xnetoloc. " Vine 50 feet, common in the forests about Izamal, the creamy- white flowers produced in May and June" (702). Mr. J. H. Thompson sends me a fine example of the fruit, remarking that the Mayas use the seeds as a remedy for frontal headache, by moistening and applying them to the forehead or temples accord- ing to the location of the pain. Tabebuia sp. Xha-hau-che. "Tree 30 feet high, rare in the forests of Buena Vista Xbac, April" (1048). Flowers only collected. TECOMA STANS Juss. Gen. 139. Calcehtoh and Tunkas, bush 6-7 feet high, March u, 1890 (Stone, 258, in Herb. Acad. Sci. Phila.). PEDALIACE^:. MARTYNIA DIANDRA Glox. Obs. t. i. At the Hacienda Saragossa, Sept. 8, 1865 (Schott, 623). ACANTHACE^E. BOUCHEA PRISMATICA (Linn.) Kuntze Rev. Gen. 502. " Herb 4 feet high, common at Yaxcaba and Tekax, October" (ii39). BRAVAISIA TUBIFLORA Hemsl. A common bush on the sand hills of Progresso, March 29, 1890 (Stone, 287, in Herb. Acad. Sci., Phila.). DIAPEDIUM ASSURGENS (Linn.) Kuntze, Rev. Gen., 485. Pensamienta. Suburbs of Merida, Dec., 1864 (Schott, 154}. HENRYA COSTATA A. Gray. Tetramerium costatum. Tunkas, March 3, 1890; 2 feet high, flowers yellow striped above with reddish brown (Stone, 244, in Herb. Acad. Sci., Phila.). RUELLIA ALBICAULIS Bert. Spreng. Syst., ii., 822. Merida, Nov. 1864 (Schott, 2}. Ruellia geminiflora H. B. K. Nov. Gen. et. Sp. ii., 240. Tekanto, flowers lilac, only one plant seen, Feb. 27, 1890; Tunkas common, March 3, 1890 (Stone, 185, 242, 247, in Herb. Acad. Sci. Phila.). Dr. Gaumer's 384, collected Oct. 1895 near Izamal, and referred on page 320 doubtfully to R. Tweediana, is doubtless also this species. RUELLIA TUBEROSA Linn. Sp. PI., 635. Cabal- Yaxnic. Merida at Quinta del Obispo, Nov. 24, 1864, and April 13, 1865 (Schott, 45, 282). Izamal, Feb. 28, 1890 (Stone, 254, in Herb. Acad. Sci. Phila.). 392 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. SIPHONOGLOSSA SESSiLis (Jacq) Oerst. " Suffrutescent 2 feet high, common in waste places near Izamal, April" (532). TUBIFLORA SQUAMMOSA (Jacq) Kuntze, Rev. Gen., 500. Merida, at Quinto del Obisbo, Nov. 23, 1864 (Schott, 24). VALERIANODES JAMAICENSE (Linn.) Boerh. (Med.) Phil. Bot. i., 177. " Herb 4 feet high, common at Merida, Izamal and inland " (1160). PLANTAGINACE^:. PLANTAGO MAJOR Linn. Sp. PL, 163. Llanten. Merida, at Quinta del Obispo, Jan. 18, 1865 (Schott, 193). RUBIACE.E. ERNODEA LITTORALIS Sw. Prod. Veg. Ind. Occ. 29. Downs at Progreso, April 4, 1865 .(Schott, 287). Exostemma Caribseum (Jacq.) R. & S. Syst. v. 18. Sabac-ch6. "Shrub 20 feet high, not common atXcholac" (957). Merida, Aug. 20, 1865 (Schott, 585). CHIOCOCCA RACEMOSA Linn. Sp. PI. 246. Xcanchac-che. Merida, July 28, 1865 (Schott, 569, 499)- Coffea Arabica Linn. Sp. PL, 245. Cafe. Cult? Merida, in flower and fruit Jan. 1866 (Schott, sine nutti). CRUSEA CALOCEPHALA de C. Prod, iv., 567. "At the Hacienda Mucuyche" on road from Merida to Sacalum " (Schott, 676). "Herb 3 feet high, common on old fields, and in waste town lots at Izamal" (937). HAMELIA PATENS Linn. Sp. PL, 246. Kanan. Suburbs of Merida, and in gardens Nov. 30, 1864 (Schott, 174). MORINDA ROYOC Linn. Sp. PL, 250. Hoyoc. Near Merida (Valdez, 67}. At Nohcacab, Nov. 27, 1865 (Schott, 709}. Tunkas, a shrubby climber, March 3, 1890 (Stone, 240, in Herb. Acad. Sci. Phila.). Psychotria undata Jacq. Hort. Schoen. iii., 5. Cancerillo. "The dried and powdered, or toasted leaves used in the cure of TJaga, a form of malignant pustule." Merida, July 6, 1865 (Schott, 524). Differs from the description only in having some of the stipules awn-pointed. RANDIA ACULEATA Linn. Sp. PL, 214. North of Merida on road to Progreso, April 7, 1865 (Schott, 262). Merida (Schott, sine num. in Herb. U. S. Natl. Mus.). JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 393 SPERMACOCE TENUIOR Linn. Sp. PI. 147. "Herb 18 inches high, frequent in shady situations near Izamal" (965). Merida, at Quinta del Obispo, Nov. 24, 1864 (Schott, 57). Nohcacab, Oct. 19, 1865 (Schott, 972). SPERMACOCE VERTICILLATA Linn. Sp. PL, 148. Merida, 1865 ; Nohcacab, Oct. 19, 1865 ; Ruins of Uxmal, Sept. 1 6, 1865 (Schott, 117, 971, 972). Tekanto common, Feb. 25, 1890 (Stone, 207, in Herb. Acad. Sci., Phila.). CAPRIFOLIACE.E. SAMBUCUS CANADENSIS Linn. Sp. PL, 269. Merida, (Cult?), Jan. 3, 1865 (Schott, 180). CUCURBITACE.E. CAYAPONIA ALATA Cogn. de C. Monogr. 3. Hacienda Saragossa, Sept. 8, 1865 (Schott, type 901}. CAYAPONIA GRANDIFLORA Cogn., de C. Monogr. 3. Ticul, Oct. 21, 1865 (Schott, type 680). Lonicera macrantha ? (Don.) de C. Prod. iv. 333. Vine 10 feet, uncommon in the forests of Tekax, September (1105). LUFFA JEGYPTIACA Mill., Gard. Diet., ed. 8. L. cylindrica Rcem. Suburbs of Merida, November 30, 1864 (Schott, 6). MELOTHRIA PENDULA Linn. Sp. PL, 35. Merida, June, 1865 (Schott, 572}. "The leaves are used by the Mayas to extract foreign bodies from beneath the eyelids." Leaves less lobed than in other Yucatan collections. CORALLOCARPUS MiLLSPAUGHi Cogn. F.Col. Mus. Bot., i,322. Xlucioan. Merida, July n, 1865 (Schott, 479}. Pittiera longipedunculata Cogn., Bull. Soc. Bot. Belg. xxx, 272. Ponponoit. "A vine 10 feet, rare in moist places near Tekax, September " Cucumis Anguria Linn. Sp.'PL 143*5. U-habaplat-oil-Kax. "An infrequent vine, Tekax, September" (1127). " Vine 20 feet, rare, Progreso" (1158). MELOTHRIA PENDULA Linn. Sp. PL, 49. "Vine 15 feet, common near Progreso" (1180). Melothria fluminensis Gardn. Jour. Bot., i, 173. "Vine 10 feet, uncommon near Progreso" (1181). Merida, November, 1865 (Schott, 900). 394 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. MOMORDICA CHARANTIA Linn. Sp. PI. 1433. "Vine 20 feet, common in waste places at Tekax, September '* (1124). Hacienda Guayalce", September 19, 1865 (Schott, 633). TRICERATIA BRYONIOIDES A. Rich., Ess. Fl. Cub., 614. Sicydium tamnifolium Cogn. "Vine 25 feet, common in stony soil and on stone fences near Izamal, October and November" (922). GOODENIACE.E. SCAEVOLA PLUMIERI (L) Vahl. Symb. ii, 36. Sandy seashore at Progreso, April 5, 1865 (Schott, 294). COMPOSITAE.* Achillea Millefolium Linn. Sp. PI., 899. Alcanfor. Campo about Merida, not in flower, April, 1887 (Mil/spaugh, 47). AGERATUM CONYZOIDES Linn. Sp. PL, 839. Near Merida, January 4, 1865 (Schott, 208). ALOMIA AGERATOIDES H. B. & K., Nov. Gen. et. Sp. iy. 151. Tekanto and Tunkas, February and March, 1890 (Stone, igor 238, in Herb. Acad. Sci., Phila.). BIDENS LEUCANTHA Willd Sp. PL, iii. 1719. " Herb 2 feet high, abundant at the Port of Silam, rays white, April " (632). Bidens tereticaulis de C. Prod., v. 598. Merida, December, 1864 (Schott, 145}. Tunkas, March 3, 1890 (Stone, 240* in Herb. Acad. Sci., Phila.). "Ascending among shrubbery like a vine, producing its orange-yellow flowers in October" (951). Brickellia diffusa A. Gray, PL Wright., i. 86. " Herb 10 feet high, uncommon in fields and brushlands near Izamal, flowering from December to March" (1080). Calea axillaris urticifolia Rob & Greenm. Proc. Am. Acad. Sci., xxxii, 27. Shrubby 5-6 feet high, flowers yellow, Tunkas, March 3, 1890 (Stone, 243, 245, in Herb. Acad. Sci., Phila.). " Shrubby 15 feet high, ascending among shrubs in the brushlands near Iza- mal" (956). Calea Zacatechichi Schl. in Linn, ix, 589. Xicin. Nohpat, November 24, 1865 (Schott, 912). Cosmos caudatus H. B. & K. Nov. Gen. et. Sp. iv. 240. Chacxul. " Herb 4 feet high, uncommon at Izamal" (940). * Determined (with the exception of Pectis) by Mr. J. M. Greenman. JAN. 1898. FLORA OK YUCATAN — MILLSPAUGH. 395 ir DYSODIA CANCELLATA A. Gray, Proc. Am. Acad. xix, 38. Merida, December 4, 1864 (Schott, 78). Eclipta alba Hassk. PI. Jav. Rar., 528. " Herb 10 inches high, in shady places near Izamal, uncom- mon, October" (1012). ERIGERON CANADENSIS Linn. Sp. PI., 863. Charcos at Celestun, May 12, 1865 (Schott ', 362). EUPATORIUM CONYZOIDES Vahl. Symb. Bot., iii. 96. Suburbs of Merida, December, 1864 (Schott, 144). "Ascend- ing 15 feet, among other shrubbery and on old fences in the brushlands about Izamal, producing its heliotrope-colored flow- ers in October" (914, 953). EUPATORIUM PYCNOCEPHALUM Less, in Linn. vi. 404. " Herb 6 feet high, common at Aguadas near Izamal, October" (1022). FLAVERIA LINEARIS Lag. Gen. et. Sp. Nov., 33, 407. Celestun, May 12, 1865 (Schott, 408}. Flaveria repauda Lag. idem. Downs of Progreso, December, 1865 (Schott, foliola 6-10 cm. long., 2.5-5 cm- lat- Kara ad Xcholac, m. Nov. (1006). Esenbeckia pentaphylla Griseb. Fl. Brit. W.I., 135. Yax-hocob. Ex descr. — Radlkofer. "Tree 50 feet high, uncommon in the forests about Izamal, producing its cream-colored flowers in July "(752). EUPHORBIACE^:. Adelia Oaxacaua (Muell.) Hemsl. Biol. Cent. Am. Bot., iii. 129? Xtompac. Ex descr. — Radlkofer. "An abundant shrub 20 feet high, Xcholac, February" (446). CELASTRACE^:. Myginda Gaumeri Loes. sp. nov. Ramulis parvaet tenuiter hirtellis ; foliis progenere majusculis, ovata-lanceolatis, minute serrulatis, basi cuneatis, apice obtusis et minute apiculatis, tenuiter coriaceis, glabris, 5-9.5 cm. longis, 2-3.4 cm- latis> supra et subtus dense prominulo et reticulatim nervosis ; inflorescentiis in foliorum axillis solitariis, dichotome furcatis, sub lente parce et tenuiter hirtis, bracteis minutis ; floribus numerosis, 4-meris ; calyce extrincecus tenuissime pilo- sulo, sepalis obtusis ; petalis rotundatis ; disco lobis 4, sub- emarginatis formato; staminibus inter eius lobos insertis, parvis; ovario 2-loculari, in stylum brevissimum angustato ; loculis i-ovulatis, ovulis erectis, stigmate parvo capitellatis. Yucatan, Buena Vista Xbac : Gaumer n. 1049. Flor. m. Apr. Petala in sicco brunneo-violacea sed postquam in aqua cocta colorem glauco-coeruleum osteodunt. " Frutex sylvicola, 15 pedalis." 402 FIELD COLUMBIAN MTSKUM — BOTANY, VOL. i. HIPPOCRATEACE^:. Hippocratea Grisebachii Loes. Eng, Prantl. Nat. Pfl. iii.5, 227. H. rerrucosa Griseb. in Goett. Abh. xxiv: 84 (1879) Non H. B. K. Nov. Gen. et Sp., v. 136 (1821), teste Loesener ipso in litl. " Vine 25 feet, common in forests about Izamal, February" (385). SAPINDACE^:* Allophylus Cominia Swtz. Prod. Veg. Ind. Occ., 62 (1788). Schmidelia Cominia Swtz. Prod. Veg. Ind. Occ., ii. (1800). " Shrub 20 feet high, common in forests about Izamal, August " (893)- [CARDIOSPERMUM CORINDUM molle Radlk. C. molle H. B. K. — C. Corindum forma 3 molle. Radlk. Flor. Brazil Fasc. 122:447 (Sept. 1897.) Gaumer's 494 (Contrib. 0:306) has not been seen by Prof. Radlkofer, the above note is simply bibliographic.] Paullinia Cururu Linn. Sp. PL 365. "Vine 50 feet, common in the forests of Buena Vista Xbac, April " (1041). PAULLINIA FUSCESCENS GLABRESCENS Radlk. Paullinia Curassavica of Biol. Centr. Am., Bot. iv:3, Mills- paugh Contrib. Fl. Yuc. 1:33, is to be replaced by Paullinia fus- cescens Kth., forma 3. glabrescens Radlk., Monogr. Paullin. (1895-96) in Abhan. K. bayer. Acad., 283, (Sep. 217) line 10 from below. The true Paullinia Curassavica of Linne", is a Serjania -S. Curassavica Radlk., in Monogr. Paull. , 305 (Sep. 239). The plant collected on the Island of Cozumel by Gaumer and noted in Biol. Cent. Am., Bot. iv:3 has been overseen (sic) in Radlk. Monogr. Paull. The quotation of Grisebach Fl. Brit. W. Ind. by Hemsley is right for the Columbian plant, not that of Jamaica, which is P. Jamaicensis Macf. "Vine 30 feet, common in forests about Izumal, Sept. and Oct." (900). Sapindus Saponaria iuaequalis (de C) Radlk. Sapindus Saponaria L. forma inaequalis Radlk., £. inaequalis de C. This is the "Sapindus sp. near divaricatus Willd " pub- lished in Biol. Centr. Am., Bot. iv. 3, collected by Dr. Gaumer on the Island of Cozumel in 1886, which I have seen ; also 396 Gaumer "common about Izamal, flowering in February." (I observed this form growing plentifully at the Laguna Columbia and Cedral, Island of Cozumel in 1895 while accompa- nying the Allison V. Armour expedition, and collected it also at Izamal. C. F. M.) *Professor L. Radlkofer. JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 403 Serjania adiantoides Radlk. sp. nov. Bui. Fructu et habitu in Sect. xii. (Synococcus) affinis Serjaniae orbicular! Radlk., insignis caulibus subherbaceis in angulis pilis patentibus hirsutis, foliis sub-bipinnatis 4-jugis, jugo infimo utrinque 5-foliato pinnato, sequenti ternato, reliquis simplicibus, floribus in thyrsis bicirrosis ob rhachim abbreviatam subumbel- latim confertis. (Habitu quo dammodo in mentem revocat Paul- liniam thalictrifoliam Juss.). Yucatan: Dr. G. F. Gaumer n. 1114 (Buena Vista Xbac, m. Sept. 1895, alab. et fruct. ; stirps rara, ad altitudinem " 10 ped." scandens. SERJANIA ATROLINEATA Sauv. & Wr. Fl. Cuba, 24. Serjania Scatans Radlk. Monogr. Serj. 213., see Radlk. Serj. SuppL, 1886:116. This replaces the Seriana scatans (Radlk) on p. 33 of these contributions. Serjania goniocarpa Radlk. Serj. Monogr. 309. "Vine 60 feet, abundant in forest and brush lands about * Izamal where it flowers in September" (973). SERJANIA PLICATA Radlk. Monogr. Serj. 167. Not Seriania plicata (Radlk.) as listed on p. 33 of these con- tributions. Talisia olivaeformis (Kth.) Radlk., in Sitz. K. bayer. Acad., viii. 342. Guayo. Uayum. Melicocca olivaeformis Kunth. "Tree 60 feet high, common in the forests of the peninsula, and cultivated in the villages. Feb- ruary to April" (406). Thouinia paucidentata Radlk. sp. nov. Arbor " 30 pedalis, vulgaris " (Gaumer) ; folia ternata (petiolo 2 cm. longo adjecto 6-7 cm. longo) ; foliola lanceolata, in acumen obtusum terminata, supra medium remote obtuso-dentata, praeter nervorum axillas subtus barbatas glabra, impunctata, epiderme mucigera ; thyrsi axillares, racemiformes, eramosi, breves, stricti, puberuli ; flores in axillis bractearum per brevium plerumque bini, pedicellati, puberuli. (Fructus non suppete- bant.) Yucatan: Dr. G. F. Gaumer n. 865! (m. Aug. -Sept. 1895, flor.) Urvillea ulmacea genuina Radlk. Urvillea ulmacea Kunth, forma i genuina Radlk., in Sitz. K. bayer. Acad., viii. (1878): 263, 264; et in Fl. Braz. Fasc. 122 (1897): 423. "Vine 20 feet, abundant in brush lands about Izamal, Janu- ary to July 481." (Through an error in the printer's make-up of p. 307, Contri- bution ii., this species is included under Vitaceae instead of pre- ceding that order at the head of the page.) 404 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. VIOLACE^:. Hybanthus Yucatanensis Millsp. sp. nov. Frutex "8 pedalis," caule albo erecto, sparsim aculeate, ramoso; ramis junior, viridis quadrangularis,angulis tenuiterpapy- raceo-alatis; foliis ramibus plerumque fasciculatis vel alternis, cun- eato-lanceolatis margine regulariter crenato-dentatis, apice pler- umque acutis, quandam obtusis rarissimeemarginatis, petiolo plus minus patentibus, rarissime 1-2 mm. longo. Floribus minimis fasciculatis pedunculatis ; pedicellis unifloris farinaceis. Sepalis ovatis acutis margine ciliatis, petalo infimo calyce duplo longiore, basi saccato apice cucullato integerribus, lateralibus et superior- ibus ovatis obtusis margine erosis ; antheris columnaris, glan- dula nectarea magna conchaeformis, stylo nepenthaeformis, ovario ovato subtrisulcato (junior.). "Infrequens ad Izamal, Yucatan m. Feb. -Mart. n. 469, flores virido-flava." Dr. G. F. Gaumer, 1895. SAPOTACE^. Buinelia obtusifolia buxifolia Miq. et Eichl.Fl. Bras, vii: 47. Puomucuy. "Shrub 15 feet high, abundant in brushlands about Izamal, March to April" (473). Index, PAGE. Abutilon 377 Acacia 363 Acalypha 370 ACANTHACEvE 39! Achillea 394 Achras 382 Acrocomia 354 Adelia 400 Adenocalymna 390 Adiantum 348 ^chmea 355 yEschynomene 363 Ageratum 394 ALG^E 347 Alicastrum 358 Allionia 361 Allophylus 402 Alomia 394 Alternanthera 360 Alvaradoa 370 AMARANTACE^; 360 Amarantus 360 AMARYLLIDACE^E 357 Amellus 395 Amerimnon 363 Amoreuxia 380 ANACARDIACE^E 375 Anacardium 375 Andropogon 350 Andropogon 354 Aneimia 348 Angelonia 389 Anoda 377 Anona 361 ANONACE/E 361 Anthephora 350 Antigonon 359 APOCYNACEiE 382 ARACE^E 355 Arachis 363 Argemone 362 PAGE. Arisasma 355 Aristida 350 Aristida 350, 354 Aristolochia 359 ARISTOLOCHIACE/E 359 Artocarpus 358 Arum 355 Arundinaria 354 Arundo 350 ASCLEPIADACE^E 384 Asclepias 384 Aspidium 348 Asplenium 349 Astronium 375 Atriplex 359 Attalea . 355 Avicennia 386 Ayenia 379 Bauhinia 364 Bidens 394 Bignonia 390 BlGNONIACE^i 390 BlXACE/E 380 Bcerhaavia 361 BOMBACACE.E 379 BORRAGINACE/E 385 Bouteloua 350 Bouteloua 350 Bradburya 364 Bravaisia 391 Brickellia 394 Bromelia 355 BROMELIACEvK 355 Bromus 352 Brosimum 358 Bryophyllum 362 Buceras 381 Buchea 391 Buchnera 389 Buettneria 379 405 406 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. PAGE. Bumelia 376, 404 Bunchosia 369 BURSERACE/E 370 Caesalpinia 364 Cakile 362 Caladium 355 Calea 394 Calliandra 364 Callisia 356 Canavalia 365 Canna 358 CANNACE.E 358 CAPPARIDACE.E 362, 399 Capparis 362 Capraria 389 CAPRIFOLIACE.E 393 Capsicum 388 Cardiospermum 402 Carica 381 CARICACEiE 381 Casimiroa 401 Cassia 365 Cassytha 362 Castalia 361 Castilloa 358 Casuarina 358 CASUARINACE^E 358 Cayaponia 393 Cecropia 358 Cedrela 370 Cedronella 387 Ceiba 379 CELASTRACEVE 375, 401 Celtis 399 Cenchrus 351 Cestrum 388 Chamaedorea .' 355 Chamissoa 360 Chara 347 CHARACE/E 347 Cheilanthes 349 CHENOPODIACE*: 359 Chenopodium 359 Chiococca 392 Chloris 351 Chlorophora 358 Chrysophyllum 382 Cissampelos 362 I'AGE. Citharexylum 386 Cleome 362 Clerodendron 386 Clitoria 366 Clusia 380 Cocos .' 355 Codiaeum 371 Coffea 392 Coix 351 Colubrina 376 COMBRETACEjE 381 Commelina 356 COMMELINACEvE 356 COMPOSITE 394 Conobea 389 Conocarpus 381 CONVOLVULACEjE 384 Corallocarpus 393 Corchorus 376 Cordia 385 Cosmos 394 Cracca 366 CR ASSULACE.E 362 Crataeva 362 Crescentia 390 Crotalaria 366 Croton 371 CRUCIFER.E 36^ Crusea 392 Cucumis 393 CUCURBITACE.E 393 CYCADACE.E 350 Cycas 350 Cynodon 351 Cynosurus 351 CYPERACE^; 354 Cyperus 354 Dactyloctenium 351 Dalbergia '. 363 Dalea 366 Dalea 368 Dalechampia 371 Datura 388 Desmanthus 367 Diapedium 391 Dioscorea 357 DlOSCOREACEvE 357 Diospyros 382 JAN. i! FLORA OF YUCATAN — MILLSPAUGH. PAGE. Dipholis 382 Diphysa 367 Distichlis 351 Uorstenia 358 Duranta 386 Dysodia • 395 EBENACE/E 382 Echites 382 Eclipta 395 Ehretia 386 Eleusine 351 Eragrostis 351 Erigeron 395 Ernodea 392 Erythrina 367 Esenbeckia 401 Eupatorium 395 Euphorbia 371 EUPHORBIACE.E 370, 401 Evolvulus 384 Exostemma : . . . 392 Ficus 358 FILICIN.E 348 FLACOURTIACE^ 380 Flaveria 395 Forchhammeria 399 FUNGI 347 Galactia 367 Gaudichaudia 369 Gomphrena 360 GOODENIACE/E 394 Gossypium 377 Gouania 376 Gouinia 352 Gouinia 352 GRAMINE/E 350 Gronovia 381 Guadua 352 Guazuma 379 GUTTIFERyE '. . . . 380 Gymnanthes 374 Gynoxis 396 Gyrocarpus 381 Hamelia 392 Helianthus 395 PAGE. Helicteres 379 Heliotropium 386 Hemionitis 349 Henrya 391 Herpes tis 390 Heteropterys 369 Hibiscus 378 Hippocratea 375, 402 HlPPOCRATEACEjE 375, 4O2 Hura 374 Hybanthus 404 Hydrocotyle 381 Hyptis 387 Ichnanthus 352 Indigofera 367 Ipomoea 384 Iresine 360 Isocarpha 395 Jacquemontia 385 Jacquinia 382 Jatropha 374 Karatas 356 Karwinskia 376 Kokera 360 LABIATE 387 Lantana 386 LAURACE^E 362 LEGUMINOS^E 363 LEMNACE^E 355 Lennoa 382 LENNOACE^E 382 Lentinus 347 Leonurus 387 Leptochloa 352 Leucobryum 347 LICHENES 347 LILIACE^E 357 Lippia 387 LOASACE/E 381 Lonicera 393 Lueha 376 Luffa 393 LYTHRACE^:. 381 4o8 FIKLD COLUMBIAN MUSEUM — BOTANY, VOL. i. PAGE. Madura 358 Macrosiphonia 383 Malachra 378 Malpighia 400 M ALPIGHIACE.E . 369, 40O MALVACEAE 377 Malvastrum 378 Malvaviscus 378 Mangifera 375 Manihot 374 Martynia 391 Maytenus 375 Maximilianea 380 Meibomia 367 Melampodium 395 Melanthera 395 MELIACE^E 370 Melicocca 403 Melochia 379 Melothria 393 MENISPERMACE/E 362 Mertensia 399 Metastelma 384 Mikania 395 Milleria 395 Mimosa 368 Mirabilis 361 Momordica 394 Monniera 390 Montanoa 395 MORACEJE 358 Morinda 392 Moringa 362 MORINGACEiE 362 Morus 359 Morus 358 M ucuna 368 Muntingia. 377 Musa 358 MuSACEvE 358 Musci 347 Myginda 401 Myroxylon 368 MYRSINACE^E 382 MYRTACEJE 381 Myrtus 381 Nerium 383 Nicotiana 388 PAGE. Nostoc 347 NYCTAGINACE^E 361 NYMPH;EACE>E 361 Ocimum 387 Oplismenus 352 Opiismenus 353 Orthopogon 352 OXALIDACE^ 369 Oxalis 369 Pachira 379 PALM^E 354 Panicum • 353 PAPAVERACE/E 362 Parmentiera 390 Parosela 368 Paspalum 353 Passiflora .' 380 PASSIFLORACE.E 380 Pauletia 364 Paullinia 376, 402 Pectis 396 PEDALIACE^E ' . . . 391 Pedilanthus 375 Persea 362 Petiveria 360 Petrea 387 Phaseolus 368 Phegopteris 349 Philodendron 355 Philoxerus 360 Phoenix 355 Physalis 388 PHYTOLACCACE^: 360 Pimenta 381 Piper 358 PIPERACE^ 358 Piscidia 368 Pisonia 361 Pithecoctenium 391 Pittiera 393 PLANTAGINACE^; 392 Plantago 392 Pluchea 396 PLUMBAGINACE^E 382 Plumbago 382 Plumeria 383 Podopterus 359 JAN. 1898. FLORA OF YUCATAN — MILLSPAUGH. 409 PAGE. POLYGONACE^: 359 Polypodium 349 Porphyllum 396 Portulaca 361 PORTULACACEjE 361 Priva 387 Prosopis 368 Protium 370 Psidium 381 Psychotria 392 Pterocarpus 368 Punica 381 Quararibea 379 Ramalina 347 Randia 392 Raphanus 362 Rauwolfia 383 RHAMNACE^; 376 Rhizophora 381 RHIZOPHORACE.E 381 Rhceo 356 Rhynchosia 368 Rhynchospora 354 Ricinus 375 Rosmarinus 387 RUBIACE^E 392 Ruellia 391 RUTACE*: 370, 401 Sabal 355 Salicornia 360 Salvia 387 Salvinia 349 Sambucus 393 Samyda 380 Sanvitalia 396 SAPINDACE^E 376, 402 Sapindus 402 SAPOTACE^E 382, 404 Scaevola 394 Schmidelia 402 Schwenkia 389 Sclerocarpus 396 SCROPHULARIACE^: 389 Selaginella 349 Senecio 396 Serjania 376, 403 PAGE. Sesbania 368 Sesuvium 361 Setariopsis 354 Sicydium , 394 Sida 378 Simaruba 370 SlMARUBACE/E 370 Sinebra 350 Siphonoglossa 392 Smilax . .- 357 SOLANACE^E 388 Solanum 388 Spermacoce 393 Spironema 356 Spondias 375 Stemmadenia 383 Sterculia 379 STERCULIACE.E 379 Stereophyllum 348 Stigmaphyllon 369 Streptachne 354 Stylosanthes 369 Suaeda 360 Suriana 370 Synedrella 397 Tabernsemontana 383 Tabebuia 391 Tagetes 397 Talisia 403 Tamarindus 369 Tecoma 391 Terminalia 381 Tetramerium 391 Tetrapteris 370 Thevetia 383 Thouinia ,. 403 Thrinax 355 TiLiACEiE 376 Tillandsia 356 Tithonia 397 Tournefortia 386 Tragia 375 Tricena 350 Tribulus 370 Triceratia 394 Trichilia 370 Tricuspis 352 Tridax 397 410 FIELD COLUMBIAN MUSEUM — BOTANY, VOL. i. PAGE. Triumfetta 380 Trixis 397 Tubiflora : 392 Turnera • 380 TlIRNERACEiE 380 ULM ACE.E 399 UMBELLIFER^E 381 Urera 359 URTICACE/E 359 Urvillea 403 Valerianoides 392 VERBENACE^E 386 Viguiera 397 PAGE. Vinca 384 VlOLACE^E 404 Waltheria 380 Wissadula 378 Wolffia 355 Xanthium 397 Yucca 357 Zanthoxylum 370 Zebrina 356 Zephyranthes 357 Zexmenia 397 ZYGOPHYLLACE^ 370 FIELD COLUMBIAN MUSEUM PUBLICATION 39. BOTANICAL SERIES. VOL. I, No. 5. STUDIES IN THE HERBARIUM. I. HIGINBOTHAMIA, A NEW GENUS, AND OTHER NEW DIOSCOREACE^E. NEW AMARANTHACE^, BY EDWIN B. ULINE, PH.D. CHARLES FREDERICK MILLSPAUGH, M.D., Curator, Department of Botany. CHICAGO, U. S. A. August, 1899. If* * w IK • ,*,• £& 'WS BE L '. .