Part 7, 1922] AECIDIACEAE 531 
DistRiBUTION: Known only from the type locality. 
ILLustRation: Holway, N. Am. Ured. 1: pl. 4, f. 20. 
Exsiccati: Barth. N. Am. Ured. 1225. 
19. Micropuccinia Brandegei (Peck) Arthur & Jackson. 
Puccinia Brandegei Peck, Bot. Gaz. 7:44. 1882. 
Dicaeoma Brandegei Kuntze, Rev. Gen. 33: 468. 1898. 
O. Pycnia unknown. 
III. Telia amphigenous and caulicolous, crowded in groups 1-2 mm. across, round or 
oblong, 0.2-0.8 mm. across, somewhat tardily naked, pulverulent, bullate, cinnamon- or 
light chestnut-brown, ruptured epidermis conspicuous; teliospores ellipsoid or oblong, 18-21 
by 29-34 », rounded or somewhat acute above and below, slightly constricted at septum; 
wall cinnamon-brown, thin, 1-1.5 4, slightly thickened into a small colorless papilla over 
the pores, up to 2», smooth; pedicel colorless, fragile. 
On FUMARIACEAE: 
Capnoides Brandegei (S. Wats.) A. Heller (Corydalis Brandegei S. Wats.), Colorado. 
E LOCALITY: Colorado, on Corydalis Brandegei. 
DisTRIBUTION: Known only from the type locality. 
20. Micropuccinia Dentariae (Alb. & Schw.) Arthur & Jackson. 
Uredo Dentarice Alb. & Schw. Consp. Fung. 129. 1805. 
Caeoma Dentariae Link, in Willd. Sp. Pl. 67:24. 1825. 
Puccinia fusca Dentariae Wallr. Fl. Crypt. Germ. 2: 220. 1833. 
Puccinia Dentariae Fuckel, Jahrb. Nass. Ver. Nat. 25-26: 295. 1871. 
O. Pycnia not seen. 
III. Telia amphigenous and caulicolous, the foliicolous sori small, 0.5-0.8 mm. across, 
gregarious on vesiculose-inflated areas, the caulicolous and petiolicolous sori on hypertrophied 
areas, often confluent, tardily naked, pulverulent, chestnut-brown, ruptured epidermis con- 
spictious; teliospores clavate or cylindric, 15-18 by 32-50 yu, rounded or obtuse above, rounded 
or somewhat narrowed below, slightly or noticeably constricted at septum; wall uniformly 
dark cinnamon-brown, 1.5-3y thick, slightly thickened above, 4-6, smooth both when 
wet and dry in American collections, distinctly striate when dry in European collections; pedicel 
colorless, short, deciduous. 
ON BRASSICACEAE: 
Dentaria tenella Pursh, Oregon. , : 
TyPE LocaLIty: Neuwied, Prussia, on Dentaria bulbifera. 
DISTRIBUTION: Western Oregon; also in central and northern Europe. 
21. Micropuccinia Drabae (Rudolphi) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 40. 1921. 
Puccinia Drabae Rudolphi, Linnaea 4: 115. 1829. 
Puccinia ambiens Rostr. Bot. Tidsskr. 11:75. 1879. 
Puccinia Hazslinszkyi De-Toni, in Sacc. Syll. Fung. 7: 692. 1888. 
Puccinia Drabae arctica P. Henn.; Allesch. & Henn. Bibl. Bot. 88:41, 1897. 
Dicaeoma Drabae Kuntze, Rev. Gen. 33: 468. 1898. 
Puccinia Cochleariae Lindr. Acta Soc. Faun. Fl. Fenn. 22%: 10. 1902. 
Dasyspora Drabae Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
O. Pycnia unknown. ; _ 
III. Telia caulicolous, fruticolous or rarely hypophyllous, roundish, elliptic or elongate, 
frequently confluent, becoming pulverulent, chestnut-brown, long covered by the cinereous 
epidermis that finally breaks away in large pieces; teliospores broadly ellipsoid or oblong, 
13-20 by .26-38 nz, rounded above and below, slightly or noticeably constricted at septum; 
wall dark cinnamon-brown, 1.5-3 p, slightly or not thickened at apex, finely and evenly ver- 
rucose-rugose; pedicel colorless, fragile, deciduous. 
On BRASSICACEAE: ; 
Cochlearia officinalis L,. (C. fenestrata R. Br., C. groenlandica 1.), Greenland. 
Draba arabisans Michx., Quebec. 
Draba globosa Payson, Utah. 
Draba hirta L,. (D. arctica Vahl), Greenland. 
Draba incana J,., Greenland. 
Draba incerta Payson, Alberta. 
