60 
PucciniA PHILIBERTIAE E. & E. 
(P. Gonolobi Rav. var. Philibertiae Pk. in M. E. Jones’ list of 
western plants, not described.) 
On leaves and follicles of Philbertia viridiflora ? Britton and 
Rusby, near Las Cruces, New Mexico, Oct., 1892 (E. O. Wooton, 
No. 43). : 
Amphigenous, but mostly hypophyllous. Sori hemispherical, 
dark chestnut brown, 13-34 mm. diam., superficial, mostly circin- 
ate around a compact central group of several confluent or con- 
nate sori; on the follicles the sori are densely crowded, covering 
the entire follicle, which is thus dwarfed and rendered abortive. 
Teleutospores elliptical or obovate, 20~-30y<15—20 #, scarcely con- 
stricted, rounded and obtuse at the apex, lower cell a little paler 
and often narrowed at the base, epispore smooth, scarcely thickened 
at the apex, contents of the cells granular. Pedicels slender, sub- 
hyaline, 55-65 “ long. Mesospores abundant, mostly smaller. 
Puccinia ZiZiaE E. & E. 
On leaves of Zizia cordata, Pullman, Wash., September, 1893 
(Prof. C. V. Piper, No. 164). 
III. Amphigenous but mostly epiphyllous. Sori small (4-M% 
mm.), not confluent, nearly black, soon naked; seated on smal 
(1-2 mm.), whitish, irregularly shaped spots, which are often con- 
fluent. Teleutospores obovate, elliptical or oblong-elliptical, “ 
22-30X15—20 #, only slightly constricted ; epispore smooth, rather 
thin or only slightly thickened at the rounded apex. Pedicels 
hyaline, about as long as the spores. 
Differs from P. dudlata, in its darker sori, smaller spores and, a5 & 
far as yet known, in the absence of any Aeccidium. 
PUCCINIA NIGROVELATA Ell. & Tracy. 
On Cyperus strigosus, Mississippi (Tracy). I] & III. 
Uredospores in short (1-2 mm.), oblong-elliptical sori, suf be 
rounded by the erect margin of the ruptured epidermis, ovate OF — 
elliptical, pale yellowish, aculeolate, 15-24 (mostly 15-20) 12-15 
u, Mass of spores cinnamon colored, | Teleutospores in flat sori, . 
I-3 mm. long, 34~—1 mm. broad, closely covered by the epidermis, 
which appears black by translucence, clavate-oblong, 35-55% 14-18 
“, broadly constricted, lower cell pale and narrowed to the pedicel, J 
upper cell broader and darker, epispore smooth, thickened at the 
apex, which is either rounded or obtusely pointed, with or without 
a hyaline papilla. Pedicels mostly shorter than the spores. The : 
teleutospore sori at length open by a longitudinal crack along 
the middle. 
