330 NORTH AMERICAN FLORA [Vorume 7 
83. Dicaeoma Pattersonianum (Arth.) Arthur & Fromme. 
Puccinia Pattersoniana Arth. Bull. Torrey Club 33:29. 1906. 
O and I. Pycnia and aecia unknown. 
II. Uredinia epiphyllous, oblong, early naked; urediniospores broadly ellipsoid or obovoid, 
21-30 by 29-39 wu; wall golden-yellow, 2-3 » thick, sparingly and prominently echinulate, the 
pores 8-10, scattered. 
III. Telia epiphyllous, intercostal, oblong-linear, 0.5-2 mm. long, early naked, chestnut- 
brown, ruptured epidermis noticeable; teliospores ellipsoid or oblong, 16-23 by 29-37 u, 
usually rounded at both ends, moderately constricted at septum; wall cinnamon- or light chest- 
nut-brown, uniformly thin, 1-1.5 u, appearing smooth when wet, finely and closely longi- 
tudinally striate when dry; pedicel colorless, fragile, as long as spore or longer. 
On PosckaE: 
Agropyron spicatum (Pursh) Scribn. & Smith (A. divergens Nees), Montana, Oregon. 
Agropyron sp., Utah. 
Elymus condensatus Presi, Utah. 
Elymus triticoides Buckl., New Mexico. 
Sitanion jubatum J. G. Smith, Washington. 
Type Locality: Sandcoulee, Cascade County, Montana, on Agropyron spicatum. 
DISTRIBUTION: Montana and Oregon to Utah and New Mexico. 
Exsiccatr: Garrett, Fungi Utah. 189; D. Griff. W. Am. Fungi 268 in part. 
84. Dicaeoma procerum (Dietel & Holway) Kuntze, Rev. Gen. 3°: 
469. 1898. 
Puccinia procera Dietel & Holway, Erythea 1: 249. 1893. 
Oand I. Pycnia and aecia unknown. 
Il. Uredinia chiefly epiphyllous, scattered, elliptic or oblong-linear, 0.3-0.6 mm. long, 
tardily naked, cinnamon-brown, ruptured epidermis conspicuous; urediniospores obovoid or 
ellipsoid, 26-32 by 32-48 4; wall moderately thick, 1.5-2.5 4, golden- or cinnamon-brown, 
finely and moderately echinulate, the pores scattered, about 8. 
Ill. Telia hypophyllous, scattered, on brownish areas, oblong-linear, 0.3-0.6 mm. long, 
grayish-black, long covered by the epidermis, bordered by a thin layer of dark stromal hyphae; 
teliospores oblong or cylindric, 15-23 by 45-80 u, truncate or angled above, usually narrowed 
below, slightly or not constricted at septum; wall thin, 1-1.5 yu, light chestnut-brown, somewhat 
darker and thicker at apex, 3-7 u; pedicel short, dark chestnut-brown. 
On PoackaskE: 
Elymus arenicola Scribn. & Smith, Oregon. 
Elymus condensatus Presl, California. 
Elymus mollis 'Trin., California. 
Type Locality: Pasadena, California, on Elymus condensatus, _ 
DistriBution: Along the coast from Oregon to southern California. 
Exsrccatr: Barth. N. Am. Ured. 658, 659; Ellis & Ev. Fungi Columb. 867, 868. 
85. Dicaeoma montanense (Ellis) Kuntze, Rev. Gen. 3°: 469. 1898. 
Puccinia montanensis Ellis, Jour. Myc. 7: 274. 1893. 
Aecidium Fendleri Tracy & Earle, in Greene, Pl. Baker.1:17. 1901. 
Puccinia Fendleri H. S. Jackson, Brooklyn Bot. Gard. Mem. 1: 246, 1918. 
O. Pycniac hiefly epiphyllous, gregarious in circular groups 1-3 mm. across, on yellowish 
or reddish spots 3-10 mm. across, punctiform, honey-yellow becoming brownish, globoid, 
90-130 » in diameter; ostiolar filaments 65-95 yu long, agglutinate to form a short column. 
J. Aecia hypophyllous, crowded in circular groups 1-10 mm. across upon yellowish or 
reddish spots, cupulate or cylindric, 0.1-0.3 mm. broad by 0.5-2 mm. high; peridium colorless, 
the margin recurved, erose; peridial cells rhombic, 19-26 by 26-32 x, abutted or slightly over- 
lapping, the outer wall rather thick, 9-13 y, transversely striate, smooth, the inner wall thinner, 
3-4 y, closely and coarsely verrucose; aeciospores ellipsoid, globoid or oblong, 18-23 by20-30 u; 
wall colorless, thin, 1-1.5 u, very closely and finely verrucose. 
On BERBERIDACEAE: . 
Berberis Fendleri A. Gray, Colorado, New Mexico. 
Il. Uredinia chiefly epiphyllous, usually in long lines between the veins, broadly elliptic, 
small, about 0.3 mm. long, cinnamon-brown, early naked, ruptured epidermis apparent; 
