Part 6, 1921] AECIDIACEAE 459 
cupulate; peridium short, the recurved margin soon becoming deeply lacerate and falling away, 
0.2-0.3 mm. across; peridial cells rhomboidal or hemispheric in longitudinal section, 13-23 
by 26-32 u, the outer wall conspicuously striate, 4-5 « thick, the inner wall rather sharply and 
prominently verrucose, 2-3 » thick; aeciospores globoid, angular, or broadly ellipsoid, 18-24 
by 19-29 y; wall colorless, about 1 u thick, minutely verrucose. 
Ili. Telia amphigenous and caulicolous, small, round, 0.2-0.5 mm. in diameter, often 
becoming gregarious in more or less orbicular areas on yellowish spots 2-5 mm. across, some- 
times arising in and about the aecia, tardily naked, pulverulent, chocolate-brown; teliospores 
clavate or elliptic, 19-26 by 40-55 y, rarely constricted at septum, the upper cell rounded, 
the lower cell often narrowed to the pedicel; wall chestnut-brown, wniformly thick, 1.5-2 pn, 
sparingly beset with straight or slightly curved spines about 7 » long; pedicel golden-yellow, 
fragile, rarely half length of spore. ‘ 
On BERBERIDACEAE: 
Podophyllum peliatum_L., Alabama, Arkansas, Delaware, District of Columbia, Illinois, 
Indiana, Iowa, Kansas, Kentucky, Maryland, Michigan, Minnesota, Mississippi, 
Missouri, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, 
Virginia, West Virginia, Wisconsin; Ontario. 
Type Locality: North Carolina, on Podophyllum [peltatum]. 
DISTRIBUTION: New York to Minnesota, and southward to the Gulf of Mexico. 
ILLUSTRATIONS: Atti Acad. Lincei III. 2: pl. 9, f. 31la, b; Bot. Gaz. 4: pl. 7, f. 7-17, 22; Corda, 
Je. Fung. 6: pl. 1, f. 13; Hotway, N. Am. Ured. 1: pl. 4, f. 21. 
Exsiccatr: Barth. Fungi Columb. 2267, 3365, 3462, 3566, 3858, 3960, 4158, 4272, 4760; Barth. 
N. Am. Ured. 163, 256, 257, 463, 655,959, 1068, 1166, 1225, 1806, 1807, 2105; Ellis, N. Am. Fungi 257, 
258; Ellis & Ev. Fungi Columb. 182, 266; Kellerm. Ohio Fungi 13, 55; Rab.-Wint. Fungi Eur. 2911, 
2912; Rav. Fungi Am. 482, 729; Roum. Fungi Gall. 2429; Seym. & Earle, Econ. Fungi 253; Shear, 
N. Y. Fungi 75; Sydow, Ured. 76, 1318, 1378, 2127; Thiim. Myc. Univ. 547, 626; Vesterg. Micr. 
Rar. Sel. 783. 
10. Allodus arabicola (Ellis & Ev.) Arthur & Orton. 
Puccinia arabicola Ellis & Ev. Jour. Myc. 6:119. 1891. 
O. Pycnia chiefly epiphyllous, scattered or somewhat grouped on yellowish spots opposite 
the aecia, scarcely noticeable, golden-brown, globoid, 95-160 by 80-95 u; ostiolar filaments 
compact, up to 65 p» long. 
I. Aecia chiefly hypophyllous, numerous, gregarious on yellowish areas 2-5 mm. across, 
sometimes extending along the veins 5-7 mm., short, cupulate, 0.2-0.3 mm. in diameter; 
peridium yellowish, the margin erose; peridial cells rhomboidal or rhombic, 15-21 by 26-32 pu, 
the outer wall 4.5-5.5 » thick, striate, the inner wall 3.5-4.5 » thick, verrucose; aeciospores 
globoid, 16-19 by 19-21 y; wall about 1 wu thick, colorless, finely and closely verrucose. 
Ill. Telia amphigenous, most often rupturing on the upper surface, scattered, deep- 
seated, circular in outline, about 0.5 mm. across, pulvinate, somewhat plumbeous, tardily 
naked, not noticeably pulverulent, ruptured epidermis conspicuous; teliospores ellipsoid, 19- 
24 by 32-40 », usually rounded at both ends, sometimes narrowed below, slightly constricted 
at septum; wall uniformly 1.5—2.5 » thick, smooth; pedicel colorless, fugacious, up to length of 
spore. 
On BRASSICACEAE: . : 
Cardamine Douglasii (Torr.) Britton, Ontario. : . 
TYPE LOCALITY: Ottawa, Canada, on “ Arabis sp.”’, error for Cardamine Douglasii. 
DISTRIBUTION: Known only from the type locality. 
11. Allodus consimilis (Ellis & Ev.) Orton, Mem. 
N. Y. Bot. Gard. 6: 187. 1916. 
Puccinia consimilis Ellis & Ev. Jour. Myc. 6: 120. 1891. 
Dicaeoma consimile Kuntze, Rev. Gen. 33: 468. 1898. 
O. Pycnia chiefly hypophylious, depressed-globoid, 80-125 » in diameter by 50-65 p high, 
honey-yellow; ostiolar filaments prominent, up to 50 » long. ; 
I. Aecia hypophyllous, distributed rather unevenly over the leaves, short-cylindric, 0.3— 
0.4 mm. in diameter; peridium nearly colorless, cupulate, the margin recurved and erose; 
peridial cells rhomboidal or oblong, 16-20 by 31-37 pn, the outer wall 6-9 yu thick, striate, the 
inner wall 3-4, thick, rather coarsely verrucose; aeciospores globoid or broadly ellipsoid, 
16-20 by 20-28 p; wall colorless, 1.5 » thick, very minutely verrucose, appearing smooth when 
wet. 
