292 NORTH AMERICAN FLORA [VoLUME 7 
III. Telia epiphyllous, scattered or sometimes confluent, oblong or elliptic, 0.5-1.5 mm. 
long, early naked, somewhat pulverulent, blackish-brown, ruptured epidermis apparent; 
teliospores broadly ellipsoid, 23-30 by 29-42 u, rounded at both ends, slightly constricted at 
septum; wall chestnut-brown, smooth, 1.5-3 » thick, 5-7 « above; pedicel colorless, once to 
twice length of spore. 
ON PoAcEAE: 
ea ais Grisebachit (Fourn.) Scribn. (Setaria Grisebachit Fourn.), Hidalgo, Mexico 
state). 
sare cognatum (Schultes) Chase (Panicum cognatum Schultes, P. autumnale Bosc), 
‘exas. ; 
Pennisetum bambusiforme Hemsl., Veracruz. 
TYPE Locality: Rio Hondo, near City of Mexico, Mexico, on Setaria Grisebachii. 
DIsTRIBUTION: Central Texas to southern Mexico. 
ILLUSTRATION: Bull. Lab. Nat. Hist. Univ. Iowa 4: ol. 12, f. 33a. 
Exsiccatt: Arth. & Holway, Ured. Exs. Ic. 33a. 
28. Dicaeoma eslavense (Dietel & Holway) Arth. Résult. Sci. Congr. 
Bot. Vienne 344. 1906 
Puccinia eslavensis Dietel & Holway; Holway, Bot. Gaz. 24:29. 1897, 
O and I. Pyenia and aecia unknown. 
II. Uredinia mostly epiphyllous, small, oblong or elliptic, 0.5-1 mm. long, cinnamon- 
brown, ruptured epidermis apparent; urediniospores broadly ellipsoid or obovoid, 23-27 by 
24-34 uw; wall dark cinnamon-brown, 2-3.5 » thick, finely and closely verrucose, the pores 
4-6, equatorial. 
III. Telia mostly epiphyllous, sometimes crowded and often confluent on the culms, 
early naked, oblong-linear, 1-5 mm. long, dark chocolate-brown, ruptured epidermis evident; 
teliospores broadly ellipsoid or oblong, 21-27 by 30-42 », rounded at both ends, slightly or 
not constricted at septum; wall dark chestnut- to chocolate-brown, 2-3 u thick, thicker at 
apex, 5-7 yu, smooth; pedicel golden-brown, up to three or four times length of spore. 
On POACEAE: 
Panicum bulbosum H.B.K., Chihuahua, Mexico (state). 
Panicum bulbosum sciaphilum (Rupr.) Hitche. & Chase, Arizona, New Mexico; Chihuahua. 
Valota insularis (1,.) Chase (Panicum leucophaeum H.B.K.), Guatemala; Oaxaca. 
Valota saccharata (Buckl.) Chase (Panicum saccharatum Buckl., P. lacnanthum Torr.), 
New Mexico, Texas; Coahuila. 
TYPE LocaALIty: Eslava, Mexico, on Panicum bulbosum. 
DIsTRIBUTION: Texas and New Mexico southward to Guatemala. 
InLustTrations: Bull. Lab. Nat. Hist. Univ. Iowa 4: al. 5, f. 22a, b. 
Exsiccati: Arth. & Holway, Ured. Exs. Ic. 22a, b; Sydow, Ured. 1308. 
29. Dicaeoma flaccidum (Berk. & Broome) Kuntze, Rev. Gen. 3?: 
468. 1898. 
Puccinia flaccida Berk. & Br., Jour. Linn. Soc. 14:91. 1873. 
Diorchidium flaccidum Lagerh. Tromsé Mus. Aarsh. 17: 80. 1895. 
Puccinia subdiorchidioides P, Henn. Hedwigia 35: 244. 1896. 
OandI. Pycnia and aecia unknown. 
II. Uredinia amphigenous, numerous, scattered or crowded and sometimes forming 
lines, elliptic or oblong, 0.5—3 mm. long, rather tardily naked, pulverulent, dark cinnamon- 
brown, ruptured epidermis conspicuous; urediniospores ellipsoid, oblong or obovoid, 18-26 by 
23-31 4; wall moderately thin, 1-2 u, dark cinnamon- or chestnut-brown, conspicuously and 
rather closely echinulate, the pores 4-6, scattered, usually 3 or 4 in the equatorial zone and 
1 or 2 near the apex. 
III. Telia amphigenous, elliptic, small, 0.5—-1 mm. long, rather tardily naked, chestnut- 
brown, ruptured epidermis inconspicuous; teliospores terete, ellipsoid or oblong, 15-26 by 
26-48 nu, usually narrowed above and below, slightly constricted at septum, which is usually 
oblique or nearly vertical; wall cinnamon-brown, paler than the urediniospore-wall, rather 
thin, 1-1.5 yu, slightly thickened over the pores, 3-5 «4; pedicel colorless, fragile, as long as 
spore or slightly longer. 
