Parasitic Fungi of Illinois. 193 
light brown, naked teleutosori black; uredospores subglobose, 
finely echinulate, 18-21 by 21-30 u; teleutospores clavate-obo- 
vate, constricted, obtusely rounded above, but sometimes hav- 
ing a thickened and angular apex, narrowed below to the thick 
pedicel, smooth, 22-27 by 42-54 x; pedicel stout, colored, 
shorter than spore. 
On leaves of Calystegia sepium: Champaign, June 8, 4914, 
I, Aug. 11, 1018, IL, I1I.; LaSalle, June 21, 5254, L, II., Sept. 
12, 1486, IT., IIT., Sept. 16, 1556, IT., Sept. 17, 1564; Fulton, L., 
coll. J. Wolf; McLean, July 6, 2452, II., July 7, 2898, II., July 
12, 2400, II., July 15, 5561, IL, WL, July 20, 2397, IL, July 
25, 2899, IT., 2401, II., Aug. 1, 2408, IT., Oct. 6, 1795, IL., IIL; 
Piatt, Aug. 17, 1101, 1I.; McHenry, Aug. 28, 1248, II.; Lake, 
Aug. 29, 1362, II.; Kane, Aug. 30,1372; Boone, Sept. 2, 1424; 
Lee, Sept. 8, 5717, II., TIL, Sept. 9, 5764, IL, ITI.; JoDaviess, 
Sept. 18, 5984, IT., III.; Ogle, Sept. 22, 6110, II., IJI.; Rock 
Island, Sept. 24, 1652, IT., IIL, Sept. 27, 1677. 
While covered by the epidermis the sori have a livid hue, 
and this condition usually lasts some time. 
P. gentiana, (Strauss) Lk. 
II, III. Epiphyllous or amphigenous. Spots none; sori 
scattered, often rather large, long or even persistently covered 
by the epidermis; uredospores subglobose or oval, sharply echin- 
ulate, thick walled, rather dark brown, 18-24 by 21-27 »; te- 
leutospores very broadly oval, sometimes almost subglobose, 
little constricted, apex slightly thickened or somewhat apicu- 
late, each segment often showing asmall nuclear spot, smooth, 
21-380 by 30-37 »; pedicel hyaline, fragile, usually crooked, 
about twice the length of the spore. 
On Gentiana puberula: Lee, Sept. 11, 5786, II., IIT.; Sept. 
27, 6202, IL., II. 
The teleutospores are quite often single celled. 
P. polygoni-amphibii, Pers. 
II., III. Amphigenous. Sori small, round or angular, in 
a circle about a larger sorus, or irregularly collected in small 
clusters, long covered by the epidermis, often very numerous; 
