Parasitic Fungi of Illinois. 181 
singly on leaves and stem, round or somewhat elongated; 
spores irregular, elongated, mostly oblong or clavate-ellipti- 
cal, smooth, apex strongly thickened, obtuse or variously 
pointed, sometimes broadly truncate, usually narrowed to the 
base, 18-21 by 28-45 u; pedicels hyaline, about the length of 
the spore. 
On Galium concinnum: Champaign, Aug. 18, 1037; Piatt, 
Aug. 15, 1062, Aug. 17, 1116; McHenry, Aug. 20, 1188, Aug. 
22,1201, Aug. 23, 1237, Aug. 28, 1306; Lee, Sept. 8, 5723; La 
Salle, Sept. 13, 1519, Sept. 30, 6253; Stephenson, Sept. 13, 5831; 
JoDaviess, Sept. 16, 5955; Ogle, Sept. 23, 61374; Henry, Sept. 
28, 1727; Jersey, Oct. 14, 6039. G. triflorum: Champaign, 
June 9, 4935, I, IIL, June 10, 4957, 1, T.; Adams, June 27, 
5308, L., IIL., June 29, 5343, I., III. 
Single-celled teleutospores are rather numerously found. 
P. tenuis, Burrill. 
I. Hypophyllous, rarely also epiphyllous; acidia clustered 
in little irregular groups or sparsely scattered, very small, short, 
the narrow border irregularly lacerated and recurved; spores 
subglobose, very minutely tuberculate, 14-18 ». (décidum 
tenue, Sechw.) IL. Hypophyllous; spots small, often conflu- 
ent, mostly yellow, with a broad blackish center; sori some- 
times scattered, usually confluent, effused, slightly convex, 
covered by the epidermis, dull grayish black; spores oblong- 
clavate, slightly constricted, usually angular or variously con- 
spicuously pointed, 15 by 40 «; pedicels hyaline or slightly 
colored, half as long as the spore. 
Aicidium tenue, Schw. Spots yellowish, evanescent, very small ; 
peridia scattered, little elevated, but, what is peculiar, amphigenous — 
closed on the upper surface, open on the lower ; spores pallid.—Schwei- 
nitz, N. Am. Fungi, No. 2889. 
On leaves of Euputorium ageratoides: Johnson, May 11, 
4612, [.; MeLean, Aug. 6, 2302; Champaign, Aug. 13, 1058; 
Piatt, Aug. 17, 1103; Lake, Aug. 27, 1340. 
P. Kuhnie, Schw. 
Il., HI. Amphigenous; sori not prominent nor compact, 
often ragged from the uneven height of the spores. II. 
