570 ARTHUR: NEW SPECIES OF UREDINEAE 
Puccinia Deschampsiae sp. nov. 
Oand I. Pycnia and aecia unknow 
II. Uredinia epiphyllous, serene “oblong or linear, 0.5—I 
mm. long, rather tardily naked, yellowish, ruptured epidermis 
noticeable; urediniospores obovoid or ellipsoid, 19-21 by 26-29n; 
wall pale yellow, moderately thin, about 1.5, finely verrucose- 
echinulate, pores 4, equatorial; paraphyses very numerous, clavate 
or clavate-capitate, 12-15 by 48-90n, wall light yellow or nearly 
colorless. 
Ill. Telia epiphyllous, scattered, oblong or linear, about 0.5 
mm. long or less, tardily naked, brownish; teliospores oblong or 
oblong-ellipsoid, 18-23 by 32-484, rounded or obtuse above, 
rounded or somewhat narrowed below, slightly constricted at 
septum; wall cinnamon- ete rather thin, 1-2y, thicker above, 
3-5, smooth; pedicel sh 
On Deschampsia soi (L.) Beauv., Longs Peak, Colorado, 
near the Longs Peak Inn, 2700 meters altitude, August 6, 1907, 
F. E. Clements (Clements, Crypt. Form. Colo. 558). The presence 
of paraphyses with the urediniospores, and the four equatorial 
pores, are characters that make this readily distinguishable from 
the other numerous grass rusts of the Rocky Mountains. 
Puccinia Parthenii (Speg.) comb. nov. 
Uredo Parthenti Speg. An. Mus. Nac. Buenos Aires 6: 239. 1899. 
II. Uredinia amphigenous and caulicolous, or only epiphyl- 
lous, usually without causing discoloration or hypertrophy, 
rounded, 0.3-0.7 mm. across, soon naked, cinnamon-brown, 
moderately pulverulent, ruptured epidermis noticeable; uredinio- 
spores ellipsoid or globoid, sometimes triquetrous and often ir- 
regular, 19-26 by 24-32u; wall yellowish brown, moderately thick, 
2-2.5u, strongly echinulate, pores 2, equatorial or sometimes 
slightly depressed below the equator, with occasionally a third 
pore at or near the apex. 
Ill. Telia amphigenous, irregular and often confluent, re- 
sembling the uredinia but darker in color, soon naked, seemingly 
pulverulent, chocolate-brown, ruptured epidermis noticeable; 
teliospores ellipsoid, often irregular and elongated, 29-32 by 40-— 
45u, smooth, rounded or obtuse at both ends, slightly or not 
constricted at septum; wall dark chocolate-brown, thick, 4—6n, 
thicker at apex, 6-9u, by addition of a paler cap or umbo, pore 
in lower cell conspicuous, near the septum; pedicel colorless, broad 
but collapsible, once to twice the length of spore. 
