pe ee ee aE ee IN | To ese Ue eee 
1897] MEXICAN FUNGI 29 
elliptical or obovate, rarely fusiform, not at all or only rarely 
constricted, rounded at both ends, rarely conical at apex, 35-48 
by 24-33, epispore smooth, chestnut-brown, apex with a broad 
hooded thickening (7.5~13); pedicel thick, firm, up to 100 
long, hyaline or pale brown.— On Setaria imberbis, City of Mexico, 
Sept. 30. 
Puccinia atra Diet. & Holw., n. sp.—Sori mostly hypophyl- 
lous: uredosori mostly linear, up to 5™™ long, naked, pulveru- 
lent, cinnamon-brown; spores elliptical or ovate, 27-35 by 21- 
254, closely covered with small warts, brown: teleutosori 
punctiform or linear, scattered or clustered, naked, black; spores 
elliptical, rounded at both ends, scarcely constricted, smooth, 
chestnut-brown, apex with hooded thickening (about 5), 31-38 
by 21+26m; pedicel rather firm, up to 85 long, hyaline, often 
brownish next the spore.—On Setaria Grisebachit, Rio Hondo, 
near City of Mexico, Oct. 4. 
Distinguished from P. Sefarig by the smaller spores. 
PUCCINIA EMACULATA Schw.—Uredo only. On Panicum halci- 
JSorme, near Tula. ; 
Puccinia Esclavensis Diet. & Holw.,n. sp.—Sori on both sides 
of the leaves, but mostly epiphyllous, small to medium sized, 
globose to linear, often confluent on the stems; uredosori cinna- 
mon-brown; spores elliptical, ovate, or globose, 30-43 by 24- 
33, yellow-brown to chestnut-brown, very closely covered with 
small warts, and with 4 equatorial germ-pores : teleutosori 
black-brown, pulvinate, naked; spores elliptical, rarely obovate, 
not at all or only slightly constricted, rounded at both ends, 
apex with a broad hooded thickening, 32—41 by 23-28, smooth, 
dark chestnut-brown; pedicel up to 160 long, hyaline.— On 
Panicum bulbosum, Esclava, near City of Mexico, Oct. 3. 
PuccinIA NiGROveLATA Ell. & Tracy.—On Cyperus, City of 
Mexico, Sept. 30. ; 
Puccinia cinnamomea Diet. & Holw., n. sp.— Sori in irregular 
= often linear groups, hypophyllous, punctiform, pulvinate, 
cinnamon-brown: teleutospores oblong, 28-38 by 14-20, con- 
Stricted, both ends rounded, with a hooded or rarely conical 
