Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. > — _—— a Amr ct, — 5, le — =a © air 8 : > 2 - i u 5 P= a a et oe x + ” , AAS Cees E/T hirt Ute ER RL GD eh a Toa.) Sy AA Ga ae aig TM Rg Behr Ne b fei SANS 2h PO Pe Gee ae os eT Se yrs a os ‘ i ‘) j Se ‘s m 7, , : tae 2 ‘ co ‘ : A te ° : tee ae $ g oi : ‘ THE PLANT DISEASE REPORTER Issued By THE PLANT DISEASE SURVEY Division of Mycology and Disease Survey BUREAU OF PLANT INDUSTRY, SOILS, AND AGRICULTURAL ENGINEERING AGRICULTURAL RESEARCH ADMINISTRATION UNITED STATES DEPARTMENT OF AGRICULTURE SUPPLEMENT 162 Y A CONTRIBUTION TO THE FUNGUS FLORA OF UTAH AND NEVADA —«™~S * Supplement 162 ) June 15, 1946 LIBRARY JUN 19 1946 The Plant Disease Reporter is issued as * servi “ag > : ee Fists throughout the United States. It contains reports, susB Us toppentatsan’, and comments submitted voluntarily by guelified cbservers. Th in the form of suggestions, gueries, and epinicons, frequently purely tentative, offered for consideration cr discuasion rather than es satters of established fect. In accepting end publishing thie material the Division of Mycology and Disease Survey serves merely as an informational clearing house. [It does rot assume responsibility for the eubject matter. —=_ mbm th) Geen Ao me eno ERS UP Pp Tin Be Issued by THE PLANT DISEASE SURVEY DIVISION OF MYCOLOGY AND DISEASE SURVEY Plant Industry Station Beltsville, Marylend A COMTRIBUTION TO THE FUNGUS FLORA OF UTAH AND NEVADA 1 Arthur S. Rhoads Plant Disease Reporter jue 150 ane Supplement 162 The following fungi listed coznvrise miscellaneous collections during the latter vart of 1944 and the first half of 1945. Records froma few collections made by others and turned over to the writer for de- termination have been included by reason of their interest. Unless otherwise steted, the fungi listed were collected in Utah, and by the writer. Unfortunately, mycology has received very little attention in these States and little or nothing has been accumulated in the way of her- barium material of fungi at the various institutions in. these resnec- tive States. Dr. L. 0. Overholts expressed the opinion that Utah is more poorly reoresented in volypore collections in the various herbaria of the country than any other State. Utah is fortunate, however, in that Prof. #. GC. Garrett, of Salt Lake City, has collected rusts and smuts over s period of aporoximsately 40 years, and much of our know- ledge of these grouns of plant diseases in this State is based upon ma- ~ terial collected by him. Specimens of the fungi here reported have been deposited in the iiy- cological Collections at Washington and duplicates of most of them in ah Formerly Pathologist with the Emergency Plant Disease Prevention Project, Us. S. Bureau of Plant Industry, Soils, and Agricultural angineering oo Phe new lnes ‘gatabli shea ihecherd aa ree hun ment Station. Parts of many of the collectior various interested workers. Grateful acknowledgment Kern for confirmation of the Gymnosporangiums, to Dr. | confirmation of many of the other rusts, and to Drs. W. os Murr 41 Seti L. ©. Overholts for identifications and confirmations of the polypores and agarics. The writer is also greatly indebted to Mr. Arthur H. Holm- ~~ gren, Banat of the Utah Agricultural Experiment Station, for his ins terest and kindness in identifying many. of the host cng PHYCOMYCETES ‘ Albugo candida (Pers. ex Lév.) 0. Kuntze: . SS MMe hae | : j , ‘S # Camelina microcarva Anderjez., Logan, Cache Co.,, June 28. Peronosvora trifoliorum DBy.: , (On Medicago sativa L., between per nay and moe hee ee ae June 15. Svecimens were also See in from Salt ae Co. earlier. aor This disease was troublesome in a ' ly heavy spring rainfall and nece ectenton ear iy cutting: of ie first croo. ASCOMYCETES Cucurbitaria elongata (Fr.) Grev.: i On Acer negurdo L., occurring abundantly on slash, Above forks. of - core me ay creck 1 mile ebove Rotary Park: in. Gity Creek Canyon near Salt — Meee, Lake City, salt Lake; Co.,. June 17. SHED 7 eda | : : ote ee Dasyseyph a aga ssizii (Perk. & curt.) Sacc.: ay < Mi i ee ENA CEL Dt Bega foe, > On Abies lasiocarpa (Hook. ) ee on ne of are as dean ei 1 oe i has ; Ta Seis. opment , Ret miles west of Logan Canyon on Tony Grove beieiaad Cache Cows June Zh. . a pe siecyens anida (Philo): Sace.: | On fallen branches of Abies lasiocarna (Hook.) Putt., Tony se Lakes Os un Beer River Range, and 1 1/2 miles vest. of Logan Canyon on, Tobgietre iy gobi Ratvos Grove Lake Road, Cache Co., June 2h. iar RM BB lien ae Aes om sat 69 Dasvscyoha incarnata Clements: On Pseudotsuga taxifolia (Poir.) Britt., occurring on decorticated ce NY limbs, near Jardine Juniper 1 1/2 miles west of junction of Cot-— tonwood Canyon with Logan Canyon, Cache Co., June 10. * Dibotryon morbosum (Schw.) Theiss. & Syd.: Cn Prunus virginiana var. demissa (Nutt.) Torr., Logan Canyon an Cowley Canyon south of forks- of Logan River, Sept. 10; Sardine Pass, Sept. 43; Green Canyon northeast of Logan and Smithfield Canyon, Apr. 29; High Creek east cf Cove, June 3; and Cottonwood Canyon branch of Logan Canyon, June 10, all in Cache Go.; Ogden Canyon east of Ogden ‘and Snow Basin deer en been Area 8 miles south west of Huntsville, “leber Co., Sent. 17; Emigration Canyon east of Salt Lake City, May 19, and 1 mile ee Rotary Park in City Creek Canyon near Salt Lake City, June 17, Salt Lake Co.3 and Mt. Timpanogos on road from “lildwood, Utah Co., Aug. 20. This dis- ease is extremely common and widesoréad in the mountains of north= eastern Utah. Extensive lesions as much as 3 feet long sometimes occur on the stems and even those as large as 4 inches in diameter may be extensively deformed by the disease, which is exceedingly destructive to thickets of chokecherries. Discine ancilis (Pers. ex Fr.) Sace.: Cn wet ground near edge of melting srow, Tony Grove Lake, Bear River Range, Cache Co., June 2h. Erysiphe cichoracearum DC.: Cn On On Cn On Artemisia dracunculoides Pursh, 1/2 mile north of Tony Grove Lek,---. Bear River Range, Cache Co. Coll. by Wm. E. Rader, 1940. Artemisia guepietodes Nutt., Island in Logan River near Lorén, Cache Gon. Coll. by Vin fv aader, Oe. 23, LOL, Aster coerulescens DC., 5 miles up Logan Canyon, Cache Co., Cct. 15; Emigration Canyon east of Salt Lake City, Salt Lake Co., Cct. Cirsium pulchellum (Greene) “foot. & Standl., 3 miles north of Glendale, Kane Co., Oct. 28. Cynoglossum officinale L., Cache Junction, Cache Co., Cct. 22. _ Erysiphe cichoracearum ‘cont. On On On On en? On Cn On Grindelia squarrosa (Pursh) Dunal, Sardine Pass, 4 miles north Mantua, Box Elder Co., Oct. 253 and Ogden Canyon east of Bec : Weber Co. 3 Sevt. pages Helenium montanum Nutt., 4 miles west of Logan, Cache Co., Oct. 22 Helianthus amuus L., Pleasant View, Weber Co., Sent 19; and North Centerville, Sept. 7, and Bountiful, Oct. 6; Devre oou. ; Mentha venardi (Bria.) Rydb., Soring Hollow end Guinavah Campsites in Logan Canyon, Cache Co., Uct. 15; and South Fork of Ogden River 5 miles east of Huntsville, “Weber Co., sept. 17. lantaso seOe Es -ceuth: Fork of Ogden Fiver 5 miles east of Hunts- ville, Weber 6 COs) -Sept« uL/ Ss ane RVeat Fork of Hobble Creek east of speinew ibe, Utah Coc52Cet sib. Polemorium foliosissimum A. Gray, Logan Canyon, Cache Go. Undated collection. Polemonium occidentale ae Roy's Camo on Right Fork of Loge 1 n iver in Logan Canyon, Gache Co. Coll. by Dr. B.°L. Richards, i941. ae) Rudbeckia occidentalis Nutt., 15 miles up Logan Canyon, Cache Co., Sept. Ge and Snow Basin Recreation Area 8 miles southvest Gite) Huntsville, ' Weber ‘CGiey Senba kin Viguiera multiflora (Mutt.) Blake, ‘Ogden Canyon east ae Ogden, mener Go. Sept. AL7; “and Pa. Ss Canyon east of Salt Lake City, pace bake Co.) 0eb.e-8-% aa ovolveoni DC.:.” On Aquilegia caerulea ee 5 miles up Logan Canyon, Cache Gay. Cct. i. Cn “On: Cn Clematis ligusticifolia mane Cgden ae east of Ogden, Veber —— eee COs, Sent. Bi Delohinium sp. (cult. serennial), Logan, Cache Co., July 19. Polygonum aviculare L., Logan, Cache Co., Oct. 16. Polygonum buxiforme Small, neer Cache Junction, Cache Co., Cote wen Gyromitra caroliniana Fr.: On wet ground near edge of melting snow, Tony Grove Lake, Bear River Range, Cache Co., June 2h. Helotium virgultorum (Vahl ex Fr.) Karst.: On piece of fallen branch of Ponulus tremuloides Michx., 1 1/2 miles west of Logan Canyon on Tony Grove Lake Road, Cache Go., June 2h. Hysterographium bakeri Earle: On decorticated standing trunk of Cercocarpus ledifolius Nutt., near Jardine Juniper on crest of ridge 11/2 miles west of junction of Cottonwood Canyon with Logan Canyon, Cache Co., June 10. Lachnellula chrysoothalina (Pers.) Karst.: On decorticated fallen trunk of Picea engelmanni Parry, Tony Grove Lake, Bear River Range, Cache Co., June 24. Lasiobotrys symphoricarpi Sydies On leaves of Symphoricarpos vaccinioides Rydb., Soring Hollow in Logan Canyon, Cache Co. Coll. by Mr. Arthur H. Holmeren,. July 15, Lophodermiun tumidum (Fr.) Rehm: On old fallen leaves of Amelanchier florida Lindl., Emigration Canyon east of Salt Lake City, Salt hake Co. Oct.ws. Melanomma nitida Bll. & Ev.: On dead stems of broken bush of Artemisia tridentata Nutt., Black- smith Fork east of Hyrum, Cache Co., May 5. Microsohaera alni DC. ex Wint.: On Ainus tenuifolia “Nutt., associated sparingly with Phyllactinia corylea Pers. ex Karst., South Fork of Ogden River 5 1/2 miles east of Huntsville, Weber Co., Sept. 173; and Right Fork of 72 “Microsohaera alni cont. Hobbie Creek Gast of Springvilie,. Utah Co., OCct..1. On Quercus gambelii Nutt., -North Ogden, Weber Co., Sept. 1h; and Rieht Fork ef Hobbie Creek east of Sorinevallie, Usah Coa; Cele. Microsphaera diffusa Cke. & Pk.: On Symohoricarpos vaccinioides Rydb.;, Cgden Canyon east of Ogden, Meper Co.; Sepu. 3. WM. \ Mey Mycosphaerella spleniata (Cke. & Pk.) House: On Quercus gambelii Nutt., Bullion Canyon 4 miles west of warysvale, Piute Co., Oct. 27. Occurring abundantly on old fallen leaves. Phylilacthumia Comylea Pers. ex Wars ue. On Acer negundo ae Logan Canyon, Cache Co. Coll. lony Diets ae dies Richerds, 19hL On Alnus tenuifolia Nutt., associated with Microsohaera alni DC. ex Wint., South Fork of Ogden River 5 1/2 miles east of Huntsville, “Teper Co., Sept. 17; and Right Fork. of Hobble Creek east of Sprameyaawie. WtzalhimGon., weenie. On Cornus stolonifera Michx., 8 miles up Logan Canyon, Cache Co., Oct. 15; Beaver Creek 10 miles east of Huntsville, “Yeber Co., Oct. 13; and Bullion Canyon 4 miles west of Marysvale, Piute Co., OcEe 5; Cn Populus angustifolia James, 3 miles north of Glendale, Kane Co., Oct. 28. On Shepherdia argentea Nutt., 3 miles north of Marysvale, Piute Co., Oct. 27. Cccumrane oon orefusien. Podosphgera oxyacanthae (DC.) DBy.: On Prunus avium L., near Kaysville, Davis Co.,.July 22. On Prunus cerasus L., near Kaysville, Davis Co., July 22 On Duke cherry (Prunus avium X P. cerasus), North Ogden, “feber Co., Sept des ° Pseudopeziza medicaginis (Lib.) Sacc.: Rhytisms salicinum Pers. ex Fr.: On Sphaerotheca zumuli var. fuliginea (Schi.) Salm. On On Qn On Salix caudatum (Nutt.) Heller, 6 miles up Logan Canyon, Cache Sepu CE Saliz scovleriana Barratt, © yon, Gache Co., Sept. 10; an southwest of Huntsville, “leber Co., ly in both cases. = Agastache urticifolia (Benth.) C. Kuntze, Snow Basin Reer 1. Senecio hydronhilus Nutt., 2 miles north of Marysvale, Piute Cc Oct. 205 Senecio integerrimus Nutt., Green Carvon northeast of Logan, Gc nN Tax Y LO) - 3 4a 30). a = as --Y Sénecio serra Hook., Snow Basin Recreation Area 6 miles southwest of Huntsyille,, Weber Co... Sent... 27. 2 fo a Ch Taraxacum vulleare (iam.) Sehr., Logan, Cache Co., Oct. 16. Ceden, Sept. 22; Snow Basin Recreation Area 8 miles southwest of Hunis- valle, Sept. 173; “Weber Co.3:'and Mapleton, Utah Co... Seub. 3C. Syncarvella tumefaciens (Ell. & Harkn.) Theiss. % Syd.s: Cn Artemisia tridentata Nutt., 2 1/2 miles west of Pequoo Summit, Wilko Go., Nevada, Nov. 10, cecurring on-fusiform swellings on living and dead stems. Also in Blacksmith Fork east of Hyrum, Cache fou. i 7 ss them. 7h Teich ospora mammoides Hll. & Ev.: pe On dead stems of Ovuntia acanthocarva Enge George and Veyo, Washington C Nig Pee Phyllosticta cacti (Berk,) ar Teichospora megastega Ell. & Ev, ¢ On Hnhedra nevadensis S. “iats., 20 miles north of Beatty,- Nye. CGo., and near Goldfield, Esmeralda Co., Mevada, Nov. h, occurrin commonly on dead stems. Also 81/2 miles west of Hurricane, Washington Co., Avr. 10.. Avparently rare in Utah Cn Hohedra viridis Coville, 15 miles west of Sante Clara, “iashington Gor 3 Aug. JETS On dead ste ms o 4 = j- > i + = 425 Seite! 5 735 ~~ } o dead stems of Artemisia tridentata Nutt., near mouth of Green eae ae Pie at GGA Ree aI Ganyon northeast of Logan, Cache Co., May 30. Teichospora sp. (probably undescribed): On Juniverus utahensis ( &n; Grand Co., May 17. a on decorti b ranches of living tree Thrystroma utahense (Sacc.) Petr.: chx., Cgden Canvon east o Snow Basin Recreation Aree 8 miles southwest of Hun 7 rT Thy. j varanr c Hees ,eSe Ce On Salix glaucops Anders., Snring vollow Campsite in Lozen Canyon Gacher(Gows CeterL5% a) 75 UREDINALES Cronartium occidentale Hedgc., Bethel & Hunt, II, III: On Ribes aureum Pursh, Ogden Canyon east of Ogden, “Jeber Co., Sent. 3s and 2 mites: south of Faneuatch, \Garfield Co. , Oct. 28. Cumminsiclla sanguinea (Pk.) Arth., II, III: On Mahonia repens (Lindl.) Don, 6 miles up Logen Canvon (Oct. 15) and near Logan (May 26), Cache Co.; Parley's Canyon and Millcreek Canyon (Oct. 8) and above Rotary Park in City Creek Canyon (June 17) near Salt Lake City, Salt Lake Co.; Bullion Canyon 4 miles west of Marysvele, Piute Co., Oct. 273; Crendall Canyon above Cas- tlegate, Carbon Co., collectcd by Arthur H. Holmgren, June 29, 19h. Gymnosvorangium betheli Kern, I, IIT: On Cratacgus rivuléris Nutt., occurring more or.less abundantly, and often in great profusion, in places at various points in northern Utah as follows: Utah Co.: it. Timpanogos elong road from Wildwood, Aug. 20; Right Fork of Fobble Creek east of Springville, Oct. 1; and 2/5 mile end again } miles south of Thistle, Ceb...26. Morgan Co.:?: Betvicen Devil's Gate end Gateway along the Weber River, Sept. 2h. Weber Co.: South Fork of Ogden River 6 milcs cast of Huntsville, Scent. 7; and Eden; Seon. 2h. Box Elder Co.: Box &lder Canyon between Brigham City and Mantua, Sept. 4. Cache Coz: | Various points in Logan Canyon and elong Right Fork of Logan River near junction with Cowley Canyon road, Sept. 1C. This rust frequently occurs more or less profusely on leaves end fruits, and trees are sometimes so severely infected that the foliese turns yellow in midsummer. Specimens collected lete in the se2son were cherecterized by e very lacerete condition of 76 Gymnosporangium betheli cont. the tubular aeecia indicative of G. tubulatum, whieh hes not been revorted from Utah. Specimens from 10 collections made from mid- summer to fall were alll considered te be the same cusulpy Dr. F. D. Kern, who concluded thet G. betheli and G. tubuletum vrobe- bly are not separate species and should be combined. On Juniperus scoptilorum Sarg., occurring more or less. abundently, and often in great profusion, at various points in northern Utah as follows: Utah Co.: 2/5-3/5 mile south of Thistle, Apr. 18 and May 8; 4 miles southeast of Gotton on U. S. No. 90, May 17; and on flank of Mt. Timoanogos, May 18, occurring sparingly except near Thistle, where it was abundant on several young trees oc- curring in close eronchaliiee to hawthorns (Crataegus rivu- laris Nutt.) with fruits heavily infected on Oct. 26. _ Salt Lake Co.: Parley's Canyon east of Salt Lake City, occurring very svar- ingly but juniver very scerce in this canyon. Weber Co.:; South Fork of Ogden River 6.5 miles east of Huntsville, May 21, occurring abundantly on limbs of a single large tree sur- unded by Crataegus rivularis and infrequent on others but juniper very scarce. Cache Co.: Occurring in great profusion at various points for a distance of 15 miles up Logan Canyon, Aur.28, May Jota 27, vune 1C, and June 24; also abundant in Blacksmith Fork east of Hyrum, May 5, and in Smithfield Canyon east of Smithfield, Apr. 29 and May 30; also e trace in Green Canyon northeast ot Logan, Apr. 29. The telia of this and other svecies of Gymnosporangium were avout all washed away by June 10 as a result of repeated heavy rains during May and the first few days of June. G betheli is a rath- er gamed as rust, with a number of different manifestations on ‘various ».srts of trees. The description stating that the telia occur in irregular, gall-like knots, usually breaking forth in succession along the branch, is woefully inadequate for this rust. It commonly produces innumerable small lesions on the twigs and small branches, long, more or less fusiform lesions on the limbs, and occasionally extensive lesions or series of lesions uv to 3 or more feet long on the trunks of young trees, TT Gymnosporengium betheli cont. and has even been observed fruiting on trunks of trees as large as 5 inches in diameter, In some cases only very recent infections were found on twigs and small branches, in others only old lesions on limbs or trunks, while still others may have both. On one tree with numerous small twig infections in Logan Canyon even a few ber ries bore telia of this rust. Severity of infection was found to be closely correlated with the proximity of the alternate host, Crataesus rivularis. In the case of lesions on limbs the older central areas of bark become roughened and die in time and become blackish, but the rust usually continues to develop new telia from year to year from the callus formed along the living margins until the branch dies. In many cases, however, the rust kills attacked limbs quite extensively. Old dead lesions closely simulate black knot or chokecherry in general aopearance. This rust often is as- sociated with G. nelsoni Arth. and when but very recent infections of both occur together on the foliage sprays and smaller twigs, seoération by visual methods oresents difficulties. Lesions on older twigs and branches usually are characterized by a series of noduler excrescences closely aggregated into. fusiform swellings, but these do not always develop, particularly with infections of very recent origin. New excrescences appear to develop rapidly following the formation of télia on those of the preceding year. The development of a new series of excrescences. by this rust is not unlike that of new hyvertronhied areas of black knot of chde- cherry. This rust has never been observed to attack Utah juniper. Gymnosvorangium inconspicuum Kern, IIT: Cn Juniperus utahensis (Engelm.) Lemm., occurring abundantly on fo- liage sprays on one large tree bearing numerous globose, woody galls of G. nelsoni Arth., 2 miles north of Pintura, Washington e I eS “~ UO. 9 OL Ye e Gymnosvoréengium juvenescens Kern, IIt: in Juniperus sconulorum Sarg., causing the development of more or less compact witches'-brocoms with the foliage usually, but not al- ways, reverting to the subulate, juvenile tyne. Brooms caused by this rust were found occurring at a number of points un Logan Can- yon in Cache Co., namely Source of Logan City Water Supply (Apr. 28), Preston Valley Trail 9 miles up the Canyon (May 3), above Guinavah Cempsite (May 27), Chokecherry Camp Ground, Cottonwood Canyon branch of Logan Canyon, and near the Jardine Juniper near the crest of a rocky ridge 1 1/2 miles west of the junction of Cottonwood Canyon with Logan Canyon (June 10). Brooms from nearly cfs / Gymnosocrangium JUNeHeSsens cont. b> Cn all points showed good development of telia except for one collec tion made as late as June 10, which showed the scars where the telial cushions had been produced but the telia had been complete- ly washed away by the abnormally heavy rainfall during May and early June. Other brooms collected near the Jardine Juniper on uhis date, however, still snowed good development of telia in the compact interiors but the spores had germinated. Several brooms with telia just beginning to develop well were also found on trees at a fairly high elevation in Smithfield Canyon, Cache Co., on April 29, when snow was stili present nearby. A single broom with good development of telia also was found on a young planted tree in the city park at Price, Carbon Co., May 8. Two brooms not yet fruiting were found on one large tree at a fairly high elevation near Long Yalley Junction on the Dixie National Forest, Kane Co., Aor. 17, telial production being retarded both by earliness of season and high altitude. a rule but one or tvo of these rust brooms are found: on single trees but cccasionally several trees, each with from one to a few brooms, may occur fairly close together. Seven trees with rust brooms were found in the vicinity of the Jardine Juninver and one of these trees had 6 living brooms and 2 dead ones. Some of the brooms on trees in this vicinity were of considerable age. The Jardine Juniner, now nearly dead, has a diemeter of 8 fect and has been estimated to be from 3200-35CO years old and is claimed to be the oldest tree of its kind. This broom-forming rust apparently never occurs on J. utahensis, which is frequently associated with Q J. scopulorum. One broom with good telial development on the fo- liaze was found on a tree with numerous lesions of G. betheli and this rust was even fruiting on the branch from which the witches!- broom hed developed. Gymnosvorangiun kernianum Bethel, IIT: On Junipcrus utahensis (Engelm.) Lemm., causing compact witches'- brooms with a slight reduction in leaf size but no reversion of the foliage to the subulate, juvenile type. Brooms with good telia developed on the foliage were observed near the west en- trance to “ion National Park, Washington Co., at the east en- trance on the “ashington-Kane Co. line, and at. points 8 and 10 miles north of Kanab, Kane Co., Apr. 16 ard 17. Bethel (Mycologia 3: 157. 1911), in his descrixntion of these brooms, gives the size as ranging from 2 inches to 2 feet in diameter. However, the brooms seen north of Kanab were of giant size. One tree about 2 ft. in diameter had an old broom fully 8 ft. in diameter formed in the upper part of one of two upright main limbs, the other having Gymnosporangium kernianum cont. been off. Two other trees, equaliy large, each had an old broom, respectively 8 and 10 ft. in diameter, formed on the lower limbs. In small brooms the branches are reduced to a compact, rounded mass so dense that the interior twigs die and remain as a mass of litter persisting for years. In these giant brooms, however, they had grown so long that the main limbs had become bare and the com- pact masses of smaller brooms were borne on the terminal vortions of the various subdivisions, the whole united into a compound witches'-broom. When the great age and slow rate of growth of these trees are considered, such giant witches'-brooms doubtless will prove to be at least a hundred or more years old. Smaller brooms with good telial development were collected subsequent Ly at-ds poamt, 10-7 onistes south of Kane -Soring ‘Turnout,; ay 12, Allen Canyon Road 14 miles west of Blanding, at the castern boun- dary of the La Sal National Forest 17.6 miles west of Blanding, May 135 and 2/2mile east: of Va Sal (7 000 ft. cleu.) fp) Sanqsuan Co., May 16. In the latter case 2 compact brooms with good telie of this rust occurred on 2 tree with scveral oven-type brooms caused by G. speciosum Pk.3; in fact the latter rust was fruiting on the stems of both the G. kernianum brooms. Five trees, cach with one or more brooms, some of which exhibited good telial pvro- duction, also were found on scattered trees in one arca of the Arches National Monument, Grand Co., May 17. This rust aovarent- ly does not occur on J. scopulorum, the rusts causing the brooms on these respective trees bcing considered distinct specics. Gymnosporangium libocedri (P. Henn.) Kern, IIT: On Libocédrus decurrens Torr., occurring rather frequently on a numer of trees a few miles northeast of Lake Tahoe, Lyor Cc., Nevada, Nov. &, as evidenced by the witches'-broom formations on the branches. This rust does not appear to have been reported as oc- curring in this State. osvorangium nelsoni Arth., Iii: On Amelanchier florida Lindl., at various »voints in Logan Canyon (Aug. 6, Sept. 10 and Oct. 15) and in Cowley Canyon south of forks of Logan River (Sept. 10), Cache Co.; Ogden Canyon cast of Ogden, Weoer Co., Sept. 3; Mt. Timpanogos along road from “ildwood, Utah Co.; Aug. 20, and on top of a ridgc 51/2 miles west of Panguitch, Garfield Co., Oct. 27. This rust is extremely common and wide- spread on foliage and fruit. 80 Gymnosporangium nelsoni cont. On Juniocrus scopulorum Sarg., as follows: Kane Go.: 5 1/2 miles northeast of Glendale, Apr. 17. Garfield Co.: Lo7 miles! south oof Baten, “lpr: Carbon Co.: On young trees planted in city vark at Price, May 8, and between Royal and Soldicr Summit, May 17. Utah Co.: L mules south of ‘Cotton on U. S. Highway No. 90; Max 17; 2 flank of Mt. Timpanogos elong road from “ildwood, May 18. Weber Cows South Fork of Ogden River 6-7 miles east of Huntsville, May 21. Gaehe "Goi.% Various points up Logan Canyon, Apr. 28, May 3 and June 10; junction of -Right Fork - Logan River with Cowley Canyon Road, May 3 and May 27; Green Canyon northeast of Logan, aor. 29 and May 30; smi thfiedd Canyon east of Smithficld, Apr. 29; and High Creek 4 1/2 miles east of Cove, June 3. As a gen- eral rule, this rust does not appear to “oceur anywhere neer as abundantly on this host as it does on J. utahensis end the galls are much smaller and more cere ebroid. In the north- ern part of Utah this rust-frequently occurs 2m associ2tion with G. betheli. Nevada: . A collection of this rust was made for the writer by Dr. Bassett Maguire and Mr. Arthur H. Holmgren at Cherry Creek, Quinn Car yon Range, Nye Co., June 8. Not recorded in Arthur's Rust Manual as occurring on juniper in this State. On Juniperus utahensis (Engelm.) Lemn., occurring abundantly, and often in greét profusion, throughout much of southwestern and southeastern Utah, where this host is extremely common. Collec- tions were made as follows: ‘Washington Co.: 2 miles north of Pintura, Anderson's Ranch 3 miles north of Toguerville, 1.4-1.6 miles northeast of Leeds, Silver Reef Mine Road 1.5 mile north of Leeds, 5, 10 and 15 miles north- west of Santa Clara and continuing along U. S. No. 91 Highway S1 Gymnosporangium nelsoni cont. to a point $% miles north of the Utah-Arizona State line, where the host stopped; also half-way between St. “Se deee and Veyo and om Hillside southwest of Veyo, and starting again between Rockville and Springdale and occurring soundantly through Zion National Park to the east boundary at the “Jash- ington-Kane Co. line, Aor. 9-16. Kane Co.: Oecurring more cr less abundantly, and often in great profusim, threughout the western vart, collections being made at in- tervals from the western boundary east to iit. Carmel Junc- tion and thence southward to the Utah-Arizona State line 3.1/2 miles south of Kanab, and northward from iit. Carme Junction to a point 5 1/2 miles northeast of Glendale (Apr. 16-17), where, at the higher elevation, J. utahensis was re- blaced by J. scopulorum. Cache Co.: Green Canyon northeast of Logan, Avr. .29. Carbon Co.: 10-11 miles southeest of Price, Mav 9. GO: miles seutheast of Price,-May: 9. LmMery ie Sj Grand Co.: 13 1/2 miles northwest of Moab, Mey 9 5 miles northwest, May 11, and e May 17. San Juan Co.: Of widespread occurrence throughout much of this county whereve Utah juniper occurred and was examined, collections being : made-at voints 8.2 and 12.8 miles southeast of Moab, 9.8 and 10.7 miles south of Kane Soring Turnout, 11 and 9-miles north and -2 1/2 miles -ea f Monticello, at intervals along the road to Blanding 2 ees south of - Monticello, ‘at intervals to.a point at 70C0G ft. elev. west of Blanding, where the up- per limit of Utah juniper is reached, and southward from Blanding to a one 11 miles north of Bluff, where the coun- try with-scattered Utsh juniper drops off to desert; also at the upver limit of this tree 1/2 mile east of La Sal, May 12-17. wt Pas In some localities in “ashington end Kane Counties in southwestern Utah, and in Grand and San Juan Counties in southeastern Utah this rust was so abundant that salls occurred by the hundreds on ~ 82 Gymnosvorengium nelsoni cont. individual trees. These mostly ranged in size from minute ones just large enough to develop one or two telial horns to globose woody galls about an inch in size. Numerous galls up to 2 and even 3 1/2 inches in diameter were seen on the larger branches, and even galls up to h 1/2 inches across were seen on the sides of large limbs or trunks. Arthur's Rust Manual gives the size as ranging uo-to 5 cm. Galls developing on twigs invariably are small since these parts are soon killed by the rust. Galls on the larger branches or trunks often attain considerable size and agc. Telia were well develoved during the-first half of Avril, when the collections in southwestern Utah were made, except at elevations much above 5,000 ft., where telial poroduction was greatly delayed by cold and was just beginning. As a gscneral rule, the small galls develov telia earlier than the large oncs. In a number of localities where infections had not develoocd with- in the last few years the g2ils vcore mostly dead. Nevada: A fine collection of this rust was made for the writer by Dr. Bassett Maguire and Mr. Arthur H. Holmgren at. Burnt Creek Canyon, Guinn Canyon Range, Mye Co. Not recorded in Arthur's Rust Manual as occurring: on juniper in this State. Gymnosporangium speciosum Pk., IIT: On Juniperus utahensis (Engelm.) Lemm., occurring in great profusion on the fusiform swellings of branches of a series.of open-type witches'-brooms involving most of the living branches on 2 single tree 1/2 mihe east: of La Sal, San Juan Co.; May 16. The orange- yellow tclia develonved as frilly outgrowths extruded in more or less lincer errangemcnt through the bark, which was abnormally thickcned anc deeply fissured. They occurred most abundantly on the twigs end smaller branchcs of the brooms but-were observed on one old‘branch 2.1/2 inches in diameter. Telial development of this rust cven occurred on the larger branches of the two compact witches'-brooms which first attracted attention to this trec. It was abundent on all of the oven-tyoe brooms excent two. which were largcly dead from the rust. “hilc this rust has nee reported as occurring on fusiform swellings, no mention has been made that it stimulatcs the development of witches!-brooms. Melampsora albertcnsis Arth., II: On Poonulus tremuloides Michx., 6 miles up Logan Canyon, Cache Co., Sept. 103° Ogden Canyon east of Ogden, Weber Co., Sept. 35 Mt 83 > We Melampsora albertcnsis cont. Timvenogos near Wildwood, Utah Co., Aug. 20. Melamvosore ribesii-purpureae Kelelo oe. TEs On Salix amygdaloides Anders., 1 1/2 milcs east of forks of Logan River, Logan Canyon, Cache Co., Sept. 10. On Salix caudata (Natt.) Heller; 6 miles up Logan Canyon, Cache Co., Senue 6: On Salix lutca Nutt., near Fruitland, Duchesne Co. Coll. by M. B. Lintord,: Auge: 74. 29273 On Salix scouleriana Barratt, Box Elder Canyon, between Brigham City and lantua, Box Hlder Co., Sept. 4; Ogden Canyon east of Ogden, Webcr Co., Sept. 3; near heed of American Fork Canyon, Utah Co., Mus ee. Melampsorella cerastii (Pers.) Schroet., I: On Abics concolor Lindl. & Gord., near head of American Fork Canyon, Utah Co., Aug. 20. Forming witches'-brooms with abundant aeciae on L trees. Peridermiuin cohedree Cke., I: On Evredra névadensis S. “ats., Valley of Fire southwest of Overton, Clark Co., Nevada, Apr. .14. A single witches'-broom was found in which all the-aecie but those on a few twigs had weathered away, leaving lenticular ruotures in the cortex of the twigs, through which aecia had. developed... New to the State Flora. Phragmidium montivaguum Arth., II, ill: . On Rose woodsii Lindl., occurring commonly at various points up Logan Canyon, Cache Co., Aug. 6 and Sept. 10; also 2t Ogden, Weber Co., Scpt. 18. Not reported previously on this host in Utah. Phragmidium occidentale Arth., II, Iii: On Ruous parviflorus Nutt., Ogdcn Canyon cast of Ogden, “'cber Co., Sept. 3; City Creek. Canyon ncar Selt Lake City, Salt Lake Co., no J ee Oe 8h Phragmidium rubi-idaei (DC) Karst., III: On Rubus idaeus var. aculeatissimus Regel & Tiling, 14 miles up Logan Canyon, Cache Co., Sept. 10. . 3 Puccinia absinthii (Hedw. f.) DC., II, III: On Artemisia gnaphalodes Nutt., Island in Logan River, moar Logan, Cache Go. Colles by B..L.. Richards, Get. £, 1941. Not reported oreviously on this host in Utah. On Art@émisia tridentata Nutt., 7 miles up Logan Canyon, Cache Co., Oct. 15; Hobbie Creek Canyon east of Springville, Utah Co., Oct. Ls: 5.1/2 miles west-of Panguitch, Garfield Co., of Salt Lake City, Salt fale’ Co., Oct. Ss. Puecimia crastidacs Tracy, Li, ir: On Distichlis stricta (Torr.) Rydb., 4 miles west of Smithfield, Cache Co., Oct. 26; Redmond and Salina, Sevier Co., Oct. 26; al- “s0 2 miles west of Fallon, Churchill Co., and at Reno Hot Sovrings, Washoe Co., Nevada, Nov. 5 and &. Puccinia atrofusea. (Dudl.’& Thomp.). Holw.; Ti5) Dia On Carex geyeri Boott, 6 miles uv Logan Canyon, Cache Go. 5 Oct... £5. Not reported previously on this host in Utah. Puccinia balsamorhizae Ps te. LET: On Balsamorhiza sagittata (Pursh) Nutt., 6 miles un Logan Canyon, Gackhe.’ Cos. ibe, 13: G5 Puccinia balsamorhizae cont. On Wyethia ampiexicaviis Nutt., Sardine. Pass., 4 miles north of Man- Ose hGe RO ee ORG Zoe Puccinia pardanse (Wallir.) @dal Tb, Lite | On) Arecosum menussGehks. >) imaes! up) Losan’ Canyon, \Cache” Con, ‘Oct. ras" Box Elder Canyon, between Brigham City and Mantua, Box Elder Co., Septie wus) Oecen wanvyoreastiwot Geden, seper Oo. septs. 35 South Fork of Ogden River 5 3/2 miles east of Huntsville, Weber Co., Seot. 17; City Creek Canyon near Salt Lake City, Salt Lake Co., Ape ea neh cre mone OMe Ino (Or bam Snemnmathe: Din Ore. Be i. Raich- ards.at, Nubley. Cache Co,’ Seot.- 12; 1G4).-wassfound Later,.i.n) work- ing over some unidentified collections. This rust, which has not oeen reported previously as occurring in Utah, apoears to be well established in: the northeastern vart. Sance Arthur's Rust anual gives North Dakota as the western limit of distribution, these collections extend the range more than 500 miles soutnwestward. Ruec mre Ce lochort mires bl, Lies Cn Calochortus nuttallii T. & G., near mouth of Green Canyon north- east of Logan, June 2; Logan, June 28, Cache Co. Puceinia Caricis urireata (Kern): Arth., 11: On Carex nebraskensis Dewey, near b J | Hatchery west of Logan, Cache Co., pet oe: Kane Ce.\5 (Gebcti2o6 fg O f+ @) 2) w yD) (Sl, ee On Carex sp., State Fish Hatchery west of Logan, Cache Co., Oct. 22. Buccimiaicirsi a Rasch, iy. werk: On Cirsium arizonicum (A. Gray) Petrak Park, near Springdale, “‘ashington a ously on this host in Utah. , Zion Canyon, Zion National 62, Och. 292-0 Not: revorted pre- >) (Nutt.) Spreng., Cgden, Weber Co., Sept. 18. GS re S yD) (or (wr, 4 rab) Tate z On Cirsi Reccimc ened Mart. Li; LE: On Cirsium lanceolatum (L.) Hill, 14 miles up Logan Canyon, Cache 86 Puccinia cnici cont. Co., Sept. 10; South Fork of Ogden River 6 miles east of Hunts- ville, Weber Co., Sept. 17; Right Fork of Hobble Creek east of oDrineviate. Utah Coa, Ocha i. Puccinia consvicua (Arth.) Mains, I: On Helenium hoopsei A. Gray, Schuman's Gulch, La Sal Mts., Grand Co., at 9000 ft. elev. Coll. by Dr. Bassett Maguire, July 21, 1933. New to the Utah Flora. Puccinia evadens Hark., II: On Baccharis emoryi A. Gray, Zion Canyon, Zion National Park, near Springdale, Cet. 29, and in 2 localities at La-Verkin, Washington Co., Nov. 1. Ceusing fusiform swellings and witches'-brooms on stems, the systemic, caulicolous habit of the uredinial stage being unusual. “hen in this county again on Avr. 14 old brooms and fusiform swellings were observed cccurring abundcntly 2t one locelity east of Rockdale and et Zion Lodge in Zion Nationsl Park, the latter about a mile from the place where the rust wes collected earlier. New to the Utah Flora. . Buecina] “SltebOsmpes Pies, Wis, sis On Lycium andersonii A. Gray, 5 miles west of Fallon, Ghurchill Co., Mov. 5, and in Valley of Fire southwest of Overton, Clark Cc., Apr. 14, Neveda; also northeast of La Verkin and 2.6 miles north of Utah-Arizon2 State line on U.S. Highwey No. 91, Washington Co., Aor. 20 and 154 On Lycium torreyi A. Grav, Overton, “Moava Velley, Clark Co., Nevada, Apis 13. Puccinia prindelise Pk. ,-fit: On Chrysothomnus neuseosus subsp. greveolens (Nutt.) H. & C., Zion Cenyon, Zion National Park, near Springdale, Washington Co., Oct. 9. Abunden C N) On Gutierrezis serothrae (Pursh) Britt. & Rusby, same locality and date. 87 Puececimia erindeliae cont. On Actinea leptoclada ivesiana (Greene) Macbr., Comb Wash Ridge be- tween Bluff end Mexican Hat, San Juan Co. Coll. by Arthur H. Holmgren, May 20, 19443; also 9 miles north of Monticello, San Juan GCo., May 12. Em the latter collection the rust ‘was. confined to old dead overwintered basel leaves. While infections hed devel- oped on the young leaves, it was too early for sporulation of the rust on these. Puccinia harknessii Vize, I1, III: On Lygodesmie spinosa Nutt., lL t/2 miles north of the University of Nevede, Reno, Weshoe Co., Nevads, Nov. 7. Gn Steohnnomerie! téenuitolia, (Torr.) H. MM. Hell; Zion Canyon; Zion Netioneal Park, near Soringdeile, “eashington Coe, Oct. 26. Rigecirins: melamine Sew. lel .. Aas On Helianthus annuus L., Toquerville, “Washington Co., Nov. 2. Puccinia heucherae (Schw.) Diet., IIT: On Mitella stauropetala Piper, Ogden Canyon east of Ogden, ‘Weber Co., Jeni. so “NOu GepoOrted: previoucky on) this hosy gn Uran. Bucermis iimerecia (Sehums) Mert. , il, dois On Agoseris (an apomict), occurring on lesves, stems and flower~heads, Logen, Cache Co., June 28. On Crepis occidentelis Nutt., occurring on leaves, stems -nd flower- heads. Associated with the preceding. On Taraxrcum vulgaris (Lam.) Schr., 5 miles uo Logan Canyon, C-che Co., Cct. 15; Ogden Canyon east of Ogden and Snow Basin Recrea- tion Aree 8 miles southwest of Huntsville, “leber Co., Sept. 3 end 7; Perley's Canyon east of Salt Lake City, Salt Lake Co., Oct. 8; ke Verkin, Viashingeton Co., Nov. i. Puccinia hobkboellii (Horenen. ) MOSibis aw Oue ome On Arabis holboellii Horenem., junction of Lake Blanch Rod in Big 8S Puccinia holbcellii cont. Cottonwcod. Canyon near Holladay, May 2C, and City Creek Canyon neer Salt Lake City, May 21, uo it Lake Co.; Cottonwood Canyon branch of Logan Canyon end Guinevah Campsite in Logen Cenyon, June 1O and May 27, Cache Co. On 4rabis holboellii var. retrofracta (Grah.) Rydb., on mountain bench ond ravine east of Logan, Cache Co., May 26. On Arabis sp., La Sal National Forest 27 miles west of Blanding, San Juam ioe, Men 15. Gn. Tris) milssourt enems:. Nutt. ¢4 mes northuof CirelevillesPiute Co. Puccini a jonesiy toca Artis. CG. J sen On Lometium dissectum (Nutt. ) Move Co war.) mibtatiidun! (Mutts) Me & C., Big Cottonwood, illcreek and City Creek Canyons near Salt ake City, Salt Leake Co., May 20 and 21; Logsn Canyon, OG2che Co., Mey ZY ry On Lometium simplex (Nutt.) Macbr., Logan, Cache So., May 9 end June 28 ° : Pucei nie malvacesrun, Bert... (ii: Cav., South Ogden, Weber Co., June 183; Logan, On Malve rotundifolia L., South Fork. of Cgden River 5 miles cast of Huntsville and at Pleasant View, ‘Veber Co., Sept. 17 and 193 Right Fork of Hobble Creek east of Springville, Utah Co., Oct. 1; Leeds and Santa Clara, Washington Co., Oct. 30, also at eT eee Dey Nevad:, Nov. 7.. A very common rust on this host. Ie trie Puccini2 menthae Pers., Iil: On Mentha penardi (Briq.) Rydb., Right Fork of Hobble Creek east of Sprancwmsdio, Utah War. Ocit.dhe 89 FUceinua im uler Onn \ieklee | Dads On Achilles lanulosa Nutt., 14 miles up Logan Cenyon, Cache Co., Sept. 10. Not previously reported on Achilles in Utah. Puccinia monoice (Pk.) Arth., ©, I: On Arabis microphylle Nutt., on mountain bench east of Logan, Cache Co.; May 26) JA new host record for this rust. On Arabis perennans S. Wats., 9 miles north of Monticello, Sen Juan Gor, J Maw 2.6) Amen hesty record) Hormithas rust. PUCCIMT 2) matwercsoniana Amb.) Oy): On Brediaea douglasii S$. Wats. , mouth of Big Cottonwood Cenyon ncer Heliladey, Salt Lake Co., Mey 20. Puccini2 pimolgel lac iSite.) Marti. (Cy) hie ra On Osmorrhiza occidentalis Nutt., Logan Canyon, Cache Co., Aug. 6, Seot. 1C and May 27; Ogden Canyon east of Ogden and Snow Basin Recreation Area 8 miles southwest of Huntsville, leber Co., Sept. 3 and 17; Mt. Timoanogos near ‘Jildwood and Right Fork of Hobble Creek) edst of Springville, | Utah’ Co... Aug. 20 and) Cet.) 1. A very ‘common rust. Pucciana plumbaria Tana VR dlls 0 alla On Phlox gracilis (Dougl.) Greene (= Microsteris micrantha (Kellogg) Greene), along edge of Ft. Douglas Reservation, Salt Lake City, Salt Lake Co.', May/ 19; om) mountain bench least of Logan, May 26, and near mouth of Green Canyon northeast of Logan, June 2, Cache Co. On) \Paolox Moneifolia NuteySalt Lake City May 7 iand 19,' onibench near Millcreek Canyon and neér mouth of Big Cottonwood Canyon near’ Salt Lake City, May 20, Salt Lake Co. A very common rust, systemic in plants and causing enlargement anc thickening of leaves and aborting plants so that they rarely bloom. Puccaniapolyesont-—emphibis Pers) 0) iD: On Polygonum natans var. hartwrightii (Gray) Sanford, 4 miles west 90 Puccinia polygoni-amphibii cont. of Logan, Cache Cos, Cet. 22. Puccinia rubigo-vera agropyri (Erikss.) Arth., I, II, II: Cn On On Cn Agropyron subsecundum Lk., Mt. Timoanogos near “Yildwood, Utah Co., Pao ae Clematis ligusticifolia Nutt., Ogden, Weber Co., Seot. 18. Elymus condensatus Presl., 6 miles un Logan Canyon, Cache Co., Sept. we Lue Hlymus glaucus Buckl., Ogden Canyon east of Ogden, Weber Co., Sept. ee Puccinia rubigo-vera apocrypta (Ell. & fr.) Arth., 0, I: Cn Hydroohyilum capitatum Dougl., Card Ranger Station in Logan Canyon, June 1C, Smithfield Canyon, May 10, and road to Tony Grove Lake from. Logan Caryon, June 24, Cache Co.; above Rotary Park in City Creek Canyon near Salt Lake City, Sait Leake Co., June 17. Puccinia splendens Vize, Il, Lil: Cn t Hymenoclee salsola Torr. & Grav, 4 miles west of Hurricane, “Jash- ington. Co., CCis 31, eceurrine abundantiay-and causuas suse orn swellings on the older stems. Also collected during the first half of Avril, 1945, 81/2 miles west of Hurricane, betveen Hur- - ricane and La Verkin, and northeast of La Verkin, Washington %o., Utah, snd near Bunkerville and in the Valley of Fire southwest of Overton, Clark Co., Nevada, occurring in great abundance in the last locality. This rust does not appear to have been recorded previously from Nevada and was recorded from Utah only from a single collection made in Yashington Co. (Garrett, The Uredirales or Rusts of Utah, Bull: Univ. Utsh 28 (7): 44.1937, and in Arthur's Rust Manual) as on H. monogyra Torr. & Gray, a species not recog- nized as occurring in this State. The host-for this rust collec- tion has recently been determined as H. fasiculata A.Nels. by S. F. Blake, who states that this doubtfully distinct species is very close to H. salsola and that many botanists consider them LOUChh hea. Pucecinia Subecimeinsta ELL. & Ev., Tri: Cn Senecio integerrimus Nutt., Parley's Cenyon east of Salt Lake City, 91 Puceimia subciteinava Cont. Sait Lake Co., May 17; Green Canyon northeast of Logan, May 30, and at the Jardine Juniper near crest of rocky ridge 1 1/2 miles west of junction of Cottonwood and Logan Canyons, June 10, Cache GO. PuceInia thlaspeoes, Sehub., LIE: On Thlaspi glaucum A. Nels., 5 miles up Logan Canyon, Cache Co. Coll. by Mr. Arthur Hs Holmgren, June 2, 1944. Puccinia vagans epilobii-tetragoni DC., BEES On Evilobium paniculatum Nutt., Right Fork of Hobble Creek east of sprimnevalile, Usah Con Oct.) .* "Occurring acundantly. Puccinia violae (Schum.) Arth., II, III: Cn Viola adunca J. EH. Smith, Pight Fork of Hobble Creek east of Sprirg- Vane Wit Cog Oete ds On Vicla nephrophylla Greene, occurring near the preceding. Not re- _———————————— ported oreviously on this host in Utah. Pucciniastrum pustulatum (Pers.) Diet., II: On Enilobium adenocaulon Haussk., State Fish Hatchery west of Logan, Cache sCo.., Octs 22s Seuthn Fork of Ogden River 5 miles cast of Huntsville, Weber Co., Sept. 24: Right Fork of Hobble Creek. cast OF Spranevidie,*"UtranvGe a, sOCt Uromyces fabae (Pers.) DBy., III: On Lathyrus utahensis Jones, 6 miles up Logan Canyon, Cache Co., Oct. ee 15; Emigration Canyon east of Salt Lake City, Salt Lake Co., Cct. Uromyces glycyrrhizae (Rab.) Magn., II, IIT: On Glycyrrhiza lepidota Nutt., near Cache Junction, Cache Co., Oct.22. ee eee ee 92 a inbereabnus: Chey ia... On Pees loganum A. Nels., Island in Logan River near Logan, Cache Go. ' Goll. -by B.. L. Richards, Oct..4, 19/1. Not reported: previous- iy on this host, in Utah. Uromyces ques ((Desm i) Le Tak.» i) Tie Ea) On Juncus balticus “lilid., State Fish Hatchery west of Logan, Gache Con Ocen ee. Occurring in great profusion. New to the Utah Flora. Uromyces striatus medicaginis (Pass.) Arth., II, III: On Medicago lupulina L., La Verkin, “lashington Co., Nov. 1. Not vre- viously reported on this host in Utah. On Medicago sativa L.s ha Verkin, “ashineton Cow, Nove. 2. Uromyces trifolii fallens (Desm.) Arth., II, It: On. Trifolium pratense Le, Haight Fork of Hebbile. Creek cast, of Sperime= ville, Utah Co., Oct. 17; La Verkin and Toquerville, Washirgton (©., Nowe, i end 2. * Sphacelotheca crverta (Xtihn) Potter: On Sorghum halepense (L.) Pers.(oceurrins abundantly in orchards), Leeds end Santa Clara, “ashington Co., Oct. 30.and 31. Wew record for the Utah Flcra. Sphacelotheca sorghi (Lk.) Clint.: On Sorghum vulgare Pers., near Springdale, “lashington Co. Cct. 29. Occasional ir inflorescences of plants in a l-acre planting. Ustilago bromivora (Tul.) Fisch. de “Weldh.: Qn Bromus rubens L., occurring in association with Bromus tectorum L. attacked by the same smut, Leeds, “ashington Co., Oct. 3C. On Bromus tectorum L., 7 miles up Logan Canyon, Cache Co., Oct. 1; Ustilago bromivora cont. Bountiful, Davis Co., Oct. 6; Mapleton, Columbia Steel Plant south of Provo, and Hobble Creek east of Springville, Utah Co., Sept. 30 and 21 ana Oct. 2; Zion Canyon in Zion National Park, Washington Go., Oct. 29. This smut is extremely common and widespread in Utah, frequently infecting high percentages of the plants in areas. Zundel (Mycologia 13: 180. 1921) recorded numerous localities and the percentage of infection in the northeastern part of Utah. Ustilago hypodytes (Schlecht.) Fr.: On Distachlis stricta (Torr.) Rydb.,.at Redmond ‘and «Salina, Sevier Co., Get, 26 also north ‘of Beatty, Nye Co. Nevada, Novi: On Hilaria jamesii (Torr.) Rydb., La Sal Junction 31 miles north of Monticello, San Juan Go. Goll. by Mr. Arthur H. Holmgren, June 15. BASIDICHYCETES Agaricus arvensis Fr.:°: On thick litter: of dry duff under Douglas fir (Pseudotsuga taxifolia) on dry mountainside above Pine View Dam in Ogden Canyon, Weber Co, SEDts 3. Coorinus abrpamenterius Bull. ex Fre: Cn root of stump of Populus deltoides Bartr., North Logan, Cache Co,, May 30. Crucibulum- vulgare Tul.: Cn slash of Juniperus scopulorum Sarg., Chokecherry Picnic Ground in Logan Canyon and 1 1/2 miles west of Logan Canyon on Tony Grove Lake Road, Cache Co., June 10 and 2h, Fomes fraxinoptilus (Pk.) Sacc. forma ellisianus (F. W. Anderson) Baxter: On Shepherdia argentea Nutt., Redmond, Sevier Co., Gct,. 26; Marysvale Canyon 3 miles north of Marysvale, Bullion Canyon at voints 2 and 3 miles west of Marysvale, and 3 and 5 miles northeast of Circlse- joltes Pine, Con: Och, 27-andsipr,.de: at points 2 and’? miles Fomes fraxincohilus cont. : south of Panguitch, eo Co..g Oct.122 and hurt 33. Also alon tne Truckee River at Ramsey Station on the Southern Pacific R. R. .23 miles west of Reno, eee Co., Nevada, Nov. 9. This fungus oc curred in great abundence in local thickets of the host at these points, causing a light brovm heart rot and premature death of liv ing stems. It appears to have been repvorted previously only from Montana, Saskatchewan, South Dakota, Colorado, and New Mexico. Ite occurrence in southwestern Utah and western Nevada extends the host range considerably. Fomes igniarius (L. ex Fr.) Kickx: Cn Populus tremuloides Michx., City Creek Canyon near Salt Lake City, ‘Aug. 13; near head of. American Fork Canyon and below aspen grove on Mt. Timpanogos, Utah Co., Aug. 20 and May 18; and 15 miles up Logan Canyon and between Logan Canyon and Tony Grove Lake, Cache Co.2. sume Ze. Guepiniopsis alpina (Tr. & Earle) Brasfield: Cn decorticated limb:ef fallen white fir Clerc.) Hoopes, Mt. Timpanogos, Utah (-) O ow |o at f4 OO On decorticated fallen sapling of Abies lasiocarpa (Hook.) Nutt., Tony Grove Lake, Bear River Range, Cache Co., June 24. (9) =) deccrticated trunks and limbs of Juniperus scopulorum Sarge, near Jardine Juniper on crest of ridge 1 1/2 miles west of junction of Cottonwood Canyon with Logan Canyon, Cache Co., June 10. On decorticated limbs of Pseudotsuga tsxifolia (Poir. ) Britt., seme date and locality as the preceding. a ie Paneolus campanulatus (L.4 Quel.: Qn stony ground above forks of Logan River in Logan Canyon, Cache Co., June 10. Pholiote adiposa (Fr.) Quél.:. Cn Populus deltoides Bartr., fruiting on loose bark over dead area about 12 ft. high on large living tree, Panguitch, Garfield Co., Oete ie fi. | Pleurotus ostreatus Jacq. ex Fr.: On stump of boxelder (Acer wenundo. i. ), Cove, Cache Co.., June.3 are On stump and log of narrowlesf cottonwood (Populus angustifolia m2 James), 2/5 mile south of Thistle, Utah Go., May 8; High Creek east of Cove, Cache Co., June 3. On stumps of eastern cottonwood (Pooulus deltoides Bartr.), North Logan and Cove, Cache Co., iiay 30 and June 3. Fruiting abundant- ly in large masses. ies On stumps of Lombardy povlar (Populus nigra var. italica Muens Nortn Logen-and Cove, Cache Co., May 30 and June 3. eh): Polyvorus abietinus Dicks. ex Fr.:? On fallen trunks of Abies concolor (Gord. & Glend.) Hoopes, Big Tree Camo Ground on flank of Mt. Timpanogos, Utah Co., May 18; 1 mile above Rotary Park in Sity Greek Canyon near Salt Lake City, Salt take Wen. time 7s On fallen trunk of Abies. lAsiocerna (Hook.) Nutt., 1 1/2 miles west of ‘Logan Canvon on Tony Grove Leke Road, Cache Gc., June 2h. On fallen trunk of Pseudotsuga texifolia- (Poir. ) Britt... erest ‘of ridge 11/2 miles west of junction of Cottonwood and Logen Can- yons, Cache Co., June 10. Polsporis:adustiss"1414d..ex Pret Cn charred stump of Populus fremonti S. Wats., 2 1/2 miles southeast a of Price, Carbon Co., EBay &. icated fellen trunks of Picea engelmanni Parry, Tony Grove ar. Ri Geache Co., June 2h. Polyporus hirsutus Wulf. ex Fr.: On sweet cherry (Prunus avium L.) as wound parasite on lim> of liv- ing tree, North Ogden, “ieber Co., Sept. 14. This fungus is con- sidered by Dr. B.-L. Richards. to be a rather frequent cause of Polyporus hirsutus cont. decay and trunk solitting of orchard trees in Utah. 1 mile above Rotary Park On fatlen* trunk: of Betula fontinalis Sa ; S$ y, Salt Lake Co., June 17. neers = tone in City Creek Canyon nesr Salt, Lake Cit Polyvor rus Tencosnontts Cke.-& Harkne: On fallen decorticated trunks of Abies lasiocarpa (Hook.) Nutt., Tony Grove Lake, Bear River Range, Cache Co., June 2h. On fallen decorticated trunks of Picea epveiteans = Same local- ity and date as the preceding. On branches of fallen Pinus ponderosa var. sconulorum Engelm., La Sal National Park at points 27 and 31 miles west of Rilanding, San Juan CO.as eter yaa: Polyporus munzii. Lloyd: Large imbricate mass of-sporophores at base of dead tree of Povulus fremonti-S.cMats.,5 St. Georze, washington Gov, for. Poe > According to Dr. L. O. Cverholts this was previously known only from Arizona and California Polyporus submaculatus Murr.: On decorticated fallen sapling of Povulus tremuloides Michx. on moun- tainside above Pine View Dam in Ogden Canyon, “Yleber Co., Sevt. 3. This was described as e new species by Dr. W. A. Murrill (Mycologia Bi (Le T57oEILS) Polyvorus volvatus Pk.: Cn recently dead alpine fir (Abies lasiocarna (Hook.) Nutt., 11/2 miles west of ae Canyon on Tony Grove Lake Road, Bear River Range, Cache Co., June 2h. Stropharia melanosperma (Bull.) P. Karst.: On stony ground along lower portion of Jardine Juniver Trail from Cottonwood branch of Logan Canyon, Cache Co., June 10. Trametes hispnida Pass.: On dead limbs and logs of Pooulus angustifolia James, Smithfield Can- yon and High Creek east of Cove, Cache Co., Apr. 29 and June 3; on flank of Mt. Timvanogos, Utah Co., May 18. On dead limbs of sweet cherry (Prunus avium L.) tree in orchard; also on hardwood fence post orace, Hurricane, Washington Co., Nov. 1. FUNGI IMPERFECTI Cryptosvorium sp.: On Tetradymia glabrata A. Gray, 20 miles north of Beatty, Nye Co., Nevada, Nov. 4. This fungus, which does not apvear to be des- cribed, commonly forms abundant minute pycnidia on the leaves. It Uu was later observed at other points in Nevada and apvears to be widespread. Cylindrosporium lutescens Higgins: On Prunus virginian: var. demissa (Nutt.) Torr., Ogden Canyon east of Qgeden, Weber Co.9) Sepia J+) Collections, ot ecthis. fungus, by bras E.- is Richards from Tony Grove Lake and Smithfield Canyon, Cache Co., June, 1940, and Sept..1, 1941,.also have been examined. It is said by him to be very common. Gloeosporium nervisequum (Fckl.) Sacc.: On Platanus occidentalis L., causing considerable injury to street trees. av Amervean Fork, Ute Co., sume 16. Drs Bs i. Rverards reports this disease as widespread throughout northern Utah wher- ever American sycamore is olanted. The oriental sycamore does not anvear to be attacked. Monilinia demissa (Dana) Honey: On Prunus virginiana var. demissa (Nutt.) Torr., lower portion of Jardine Juniper Trail from Cottonwood Canyon, Cache Co., June lO. Reported by Dr. B. L. Richards to be a rather common cause of dy- ing back of shoots. 98 Ovularia obliqua (Cke.) Oud.: Cn Rumex crispus L., near Cache Junction, Cache Co., Oct. 22; La Ver- kin, | Wastinetom -Go.,~ Nove: La Phyllosticta cacti (Berk.) Archer: On dead stems of Opuntia cco née ues (Engelm.) Bigel., 5,3 miles on road from St.George. to. Veyo,: Washangton Gon, Apr. 15. es sociated with Teichospora mammoides Hll. & Ev Phyllosticta clemsatidis BHll. & Dearn.: On Clemetis douglasii Hook., Mt. Naomi region, Bear River Range, Cache Co.-Coli< by Dire. 'B. cise Richards s Sebnsiigat faa. Phyllosticta minutissima Bll; & Eve: See under Sevtoria aceris (Lib.) Berk. & Br. Phyllosticta virginiana (Ell. & Halst.) Seav.: On Prunus virginiana var. demissa (Nutt.) Torr., South Fork of Ogden River 7 miles east of Huntsville, “Neber Co., Sent. 2h. A collec- tion of this fungus by Dr. B. L. Richards in Logan Canyon, Cache Co. also has been examined. Septoria aceris (Lib.) Berk. & Br.: On Acer gilabrum Torr., Smithfield Canyon, Cache: Co. Coll. by Dr. By ‘L. Richards, Sept. 1, 1941; City Creek Canyon near Salt Lake City, Salt, Lake Cow; Aug. 13: Ogden Canyon east of Ogden, Weber Co., Sept. 1; Timpanogos Cave in American Fork Canyon, Utah Co., Aug. 20. Causing abundant leaf-svotting, yellowing and premature de- sive sie ngalvo ales On Acer grendidentatum Nutt., Ogden Canyon east of Ogden, Weber Co., Sept. ae On Acer negundo L., Island in —— River near Logan, Cache Co. Coll. by Dr. Ba, L. -Riehardsy Oet. kb, 19iesOsden Canyon cast of Osden and at Ogden, “eber Co.; Aug. 20.and/Senm-. 23) -Ciuy Creek Ganyou east of Salt Lake City, Salt -Lake Cor, Aug. 3; Timpanogos Cave-an 2? Septoria aceris cont. American Fork Canyon and at Mapleton, Utah Co., Aug. 20 and él. This fungus is extremely common and widespread on both this spe- Cies and A. glabrum. Phyllosticta minutissima Ell. & Ev. was as- sociated with it in all the collections enumerated, and on A. glabrum this fungus usually was much more abundant than the Sep- torie. Gilman and Archer (The fungi of Iowa paresitic on vlents, p. 418 . 1929) regard this fungus as a microspore stage of Sep- toria aceris and consider it synonymous. J Septoria aurea var. destruens Fll. & Ev.: On Ribes aureum Pursh, Ogden Canyon east of Csden, Weber Co., Sept. 3. Causing a leaf spot. Septoria symphoricarpi Ell. & Ev.: On Symphoricarpos vaccinioides Rydb., 15 1/2 miles up Logan Canyon, Cache Co., June 21. Tuberculeria vulgaris Tode: On Prunus virginiana var. demissa (Nutt.) Torr., Smithfield Canyon, Cache Co., Apr. 29. On dead twigs and branches mostly killed by black knot. : Par *%