Purasitic Fungi of Illinois. 157 
teleutospores are divided like a Puccinia; but because a few 
such spores are found among many of single cells, the species 
should not be transferred to the latter genus unless there is 
‘good reason to suppose that the single celled spores are the ab- 
normal ones. 
In England the ecidial forms of the greater proportion of 
the Uromycetes are supposed to be known; but in our own flora 
almost nothing has been demonstrated. In the following those 
species which have their xcidia on the same host are thus indi- 
cated in the notes. . 
U. hyperici, (Schw.) Curt. 
L Hypophyllous; spots small, scattered, purplish; wcidia 
minute, about six (one to nine) in agluster, semi-immersed; 
short; spores orange. 
IL., III. Hypogenous; spots small, light cinnamon or pur- 
ple; sori numerous, scattered. Uredoforms and teleutoforms 
often in the same sorus, the latter succeeding the former. II. 
Sori small, roundish, long covered by the epidermis, then sur- 
rounded by its ruptured remains; spores light yellow, globose 
to elliptical-oblong, minutely echinulate, 16-19 by 19-27 x. 
III. Sori becoming larger, angular and conspicuous, ruptured 
epidermis prominent; spores elliptical or oblong, tapering to 
the base, strongly thickened at the obtuse or rounded apex; 
12 by 21-27 »; pedicel tinted, 1-2 times the length of the 
spore. 
Spots on the stem pilose-strigose, purple; sori scattered, acuminate- 
pvate, bullate, elevated, surrounded by the ruptured epidermis.—Schw. 
N. Am. Fungi, No. 2843, p. 292. 
On Hypericum mutilum: Union, Oct. 25, 2008, I., IIL; 
Elodes virginica: Cook, Sept. 6, 1447, I., III.; Sept. 8, 1462, 
II., TII.; LaSalle, Sept. 28, 6218. 
Cooke (Proceedings Portland Soc. Nat. Hist., Vol. 1, part 
IL., p. 184) described, under the name Uromyces triquetra, a 
species on Hypericum, and questioned its identity with the plant 
described by Schweinitz. Peck (25th Rep. p. 74) adopts the 
name given by Cooke, but Farlow (Hillis N. A. Fungi, 281) 
uses, for what seems to be the same, Schweinitz’s name. In 
