532 NORTH AMERICAN FLORA [Volume 7 
TYPE LOCALITY: Near Muggendorf, Germany, on Draba lasiocarpa. 
DISTRIBUTION: Southeastern Quebec to Greenland, and in northern Utah and northern Alberta; 
also in Europe. 
ILLUSTRATIONS: Beitr. Krypt. Schweiz 2?: f. 105; Holway, N. Am. Ured. 1: pl. 17, f. 64. 
Exsiccati: Garrett, Fungi Utah. 116. 
22. Micropuccinia utahensis (Garrett) Arthur & Jackson. 
Puccinia utahensis Garrett; Holway, N. Am. Ured. 1:46. 1906. 
Puccinia Clementis Garrett, Mycologia 6: 249. 1914. 
O. Pycnia unknown. 
III. Telia amphigenous, scattered, round, 0.5-1.5 mm. across, occasionally confluent- 
and elongate, somewhat tardily naked, becoming pulverulent, chocolate-brown, ruptured 
epidermis conspicuous; teliospores ellipsoid or oblong, often angular, 16-19 by 30-44 uy, 
rounded above, rounded or occasionally narrowed below, noticeably constricted at septum; 
wall light chestnut-brown, 1.5-2 » thick, sub-hyaline papilla at apex, 3-5 u, minutely and 
finely verrucose, occasionally in longitudinal lines; pedicel colorless, fragile, deciduous. 
ON BRASSICACEAE: 
Parrya platycarpa Rydb., Utah. 
Thlaspi glaucum A. Nelson, Utah. 
TYPE LocaLity: [Big Cottonwood Canyon, Salt Lake County], Utah, on Thlaspi glaucum. 
DistRiBvuTION: Northern Utah. ; 
In.ustration: Holway, N. Am. Ured. 1: pl. 18, f. 67. 
Exsiccati: Garrett, Fungi Utah. 144. 
23. Micropuccinia Thlaspeos (Schubert) Arthur & Jackson. 
Puccinia Thlaspeos Schubert; Ficinus & Schubert, Fl. Dresd. 2: 254. 1823. 
Puccinia Thlaspidis Vuill. Bull. Soc. Bot. Fr. 32: 184. 1885. 
Puccinia Vuilleminii De-Toni, in Sacc. Syll. Fung. 7: 692. 1888. 
Leptopuccinia Thlaspeos Sydow, Ann, Myc. 20: 121. 1922. 
O. Pyenia not seen. 
III. Telia chiefly hypophyllous, evenly distributed over the surface of the leaf, occasion- 
ally scattered on upper surface, small, round, 0.3-0.5 mm. across, not confluent, early naked, 
pulvinate, light chestnut-brown, becoming cinereous from germination, ruptured epidermis not 
conspicuous; teliospores oblong or clavate, 14-18 by 32-45 u, rounded above, rounded or 
more commonly narrowed below, slightly constricted at septum; wall thin, 1-1.5 wu, golden- 
brown, thicker above up to 8, smooth; pedicel colorless, persistent, once to once and a 
half length of spore. 
ON BRASSICACEAE: 
Thlaspi glaucum A. Nelson, Colorado, Utah. 
Thlaspi Nuitallit Rydb., Colorado. 
Thlaspi purpurascens Rydb. (T. alpestre Am. Auth.), Idaho. 
TPE LocALITy: Near Dresden, Germany, on Thlaspi montanum. 
DIstRisuTION: Southern Utah and Colorado to central Idaho; also in Europe. 
ILLUSTRATIONS: Beitr. Krypt. Schweiz 2?: f. 226; Holway, N. ‘Am, Ured. 1: BL. 17, f. 66. 
Exsiccatr: Garrett, Fungi Utah. 142. 
24. Micropuccinia Holboellii (Hornem.) Arth. & Jackson; 
Arth. Bull. Torrey Club 48:41. 1921. 
Aecidium Holboellii Hornem. Fl. Dan. 37:11. 1840. 
Puccinia Porteri Peck; Porter & Coult. Syn. Fl. Colo. 164. 1874, 
Puccinia Barbarae Cooke, Grevillea 8:34. 1879. 
Puccinia Cheiranthi Ellis & Ev.; Vasey, Bot. Gaz. 10: 366. 1885. 
Puccinia Holboellii Rostr. Medd. Grgnland 3:534. 1888. 
Puccinia palefaciens Dietel & Holway; Dietel, Erythea 2:128. 1894. 
Dicaeoma Barbarae Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Cheiranthi Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Holboellii Kuntze, Rev. Gen. 33: 469. 1898. 
Dicaeoma Porteri Kuntze, Rev. Gen, 3%: 470. 1898. 
Dasyspora palefaciens Arth. Résult. Sci. Congr. Bot. sv 347, 1906. 
Leptopuccinia Hoiboelli Sydow, Ann. Myc. 20: 120. 1922 
O. Pyenia amphigenous, numerous, conspicuous, scattered over upper surface of leaf 
or among the telia, or wanting, papillose, honey-yellow, globose, depressed-globose, or flask- 
shaped, 110-120 by 120-150 yw; ostiolar filaments 30-50 u long, partially agglutinate. 
III. Telia chiefly hypophyllous, evenly and closely distributed over the leaf, systemic, 
