108 Litinois State Laboratory of Natural Iistory. 
times rounded, narrowed below to the pedicel, smooth, chest- 
nut-brown, 15-21 by 36-60 »; pedicel firm, colored, about the 
length of the spore, sometimes shorter. 
Sori, dense, linear, blackish, spores subturbinate, constricted in the 
middle.—Persoon, Syn. Fung,, p. 228, 
On culms, sheaths and leaves of cereals and grasses. On 
wheat: McLean, July 11, 2335 and 2348, July 12, 2341, July 
15, 2339; Tazewell, July 22, 2340; Piatt, Aug. 17, 1134; Me- 
Henry, Aug. 20, 1145, Aug. 22, 1224; Fulton, Oct. 1, 1773. 
Oats: McLean, July 11, 23884, July 12, 2832 and 2333; Taze- 
well, July 22, 2329, 2330 and 2331; Champaign, Aug. 13, 1029 
and 1033; Piatt, Aug. 15,1063; McHenry, Aug. 20, 1144, Aug, 
26, 1323; Fulton, Oct. 1,1774. Agrostis vulgaris: McHenry, 
Aug. 24, 1275, Aug. 26, 1824; LaSalle, Sept. 18, 1521; JoDa- 
viess, Sept. 18, 5987; Rock Island, Sept. 27, 1673; Fulton, Oct. 
3,1732; McLean, Oct. 4, 1760; Union, Oct. 21,1905. Hor- 
deum jubatum: McLean, July 11, 2346, July 17, 5580, IT., TL; 
July 19, 5598, IL, II.; McHenry, Aug. 23, 1231, Aug. 25, 
1307, Aug. 26, 1316, Aug. 31,1392; Rock Island, Sept. 26, 1661. 
As here identified a variable species, though some forms 
often formerly included are specifically separated. under the 
names P. emaculata, P. windsoriv, and P. andropogi. The 
description is made from specimens on wheat. On Agrostis 
the teleutospores are sometimes nearly typical (No. 1732), in 
other cases they vary much in shape and thickness ofthe epis- 
pore —shorter, rounder and thinner for the most part on Nos. 
1275, 1603, and especially 1905. The uredo is very character- 
istic in all. 
P. phragmites, (Schum.) Kornicke. 
IL, TIL. Amphigenous. Sori scattered, very prominent, 
mostly rather large, elliptical, somewhat powdery, soon naked, 
the remains of the ruptured epidermis not usually visible; ure- 
dospores elliptical, epispore very thick, strongly tuberculate, 
without paraphyses, 18-21 by 27-32 u; teleutospores elliptical 
or oblong, somewhat but not abruptly constricted, vertex a lit- 
tle thickened and rounded or obtusely pointed, smooth, pale 
brown, 18-22 by 37-60; pedicel very long, three to four times 
