Parasitic Fungi of Tlinois. 165 
The teleutoform occasionally occurs on the midribs of the 
leaves and (in No. 2152) even on the blade. 
In 1797 Persoon (Disp. Meth.) named this piant Puccinia 
polygont, but afterwards wrote P. Polygoni Avicularie (Syn. 
Fung. [1801], p. 227.) Schréter in 1869 (Rost u. Br. Pilze 
Schlesiens) adopted the name Uromyces Avicularie. Fuckel 
published the name as Uromyces Polygoni in 1869 (Symb. 
Myce., p. 64). 
U. euphorbia, C. P. 
IL, HI. Amphigenous; spots purple or yellowish; sori 
scattered, round, small. II. Sori distinguished by their lighter 
brown color, spores globose, minutely roughened, pale brown, 
15-21 » in diameter. III. Spores subglobose, oval or obovate, 
slightly apiculate, warty, 15-18 by 18-25 u, interspersed with 
numerous slender paraphyses; pedicels about twice the length 
of the spore, slender, hyaline, very fragile and deciduous, leav- 
ing a small portion attached to the spore. 
Leaves generally stained with red or purple; soriamphigenous, sub- 
rotund, slightly convex, surrounded by the ruptured epidermis, ferru- 
ginous-brown or blackish-brown; spores subglobose, rough, often with a 
large nucleus, about .0008 in. in diameter; peduncle short, hyaline.— 
Peck, XXX Rep. N. Y. Mus. p. 90. 
On leaves of Kuphorbia maculata: McLean, July 16, 2352; 
McHenry, Aug. 22, 1221, Aug. 25, 1801; LaSalle, Sept. 16, 
1548 and 1550; Lee, Sept. 8, 5712; Rock Island, Sept. 21, 1616; 
Jersey, Oct. 14, 6316. . hypericifolia: Adams, July 6, 5431, 
IL, ILI.; McLean, July 7, 2353, Oct. 6, 1802; Tazewell, July 22, 
2354; Piatt, Aug. 15, 1064, Aug. 17, 1104; Rock Island, Sept. 21, 
1615; Ogle, Sept. 23, 61438; Union, Oct. 21, 1840. E. dentata: 
Adams, July 6, 5427, IL, IIL., 5428. IL, H.; Jersey, Oct. 12, 
6263, IL., III. E£. heterophylla: Ogle, Aug. 28, 5641, IT., IIT., 
Sept. 23, 6144, Sept. 28, 6182, II., III.; Lee, Sept. 9, 5754, II., 
IIT. Euphorbia sps.: McHenry, Sept. 1, 1409. 
The pedicels are deciduous, as are those of U. Howe, Peck, 
and the surface of the spore is similarly roughened. A’'cidium 
euphorbie, Pers., accompanies the Uromyces in Nos. 1064, 1548, 
1616, and 2353, but it is believed by most botanists to have no 
connection with this Uromyces. 
