70 
S—12 by 5-7//, from the tops of which arise the elliptical or oblong 25-55 
by 8-11// eonidia, of an olivaceous brown color, at first continuous, 
then 1-2 septate, the longer ones attenuated below into a stipe like 
base. Approaches Cercospora. 
Clasterisporium c^espitulosum, n. s. On rotten maple wood. 
Newfiekl, N. J., 1879. Conida fusoid-cylindrical, 12-20 septate, 100-120 
by 12—15//, subattenuated above, but with the apex distinctly rounded, 
abruptly contracted below, with a short stipe-like base attached directly 
to the wood without any perceptible prostrate threads. The eonidia 
are nearly opaque, straight and erect, not constricted at the septa, but 
some of them are contracted near the middle. They grow in loose fas¬ 
cicles, which are more or less crowded, forming black lomcntose patches 
or subeffused. Nearly allied to C. larvatum , C. & E., but differs in its 
straight eonidia with short stipitate base. 
Heterosporium hybridum. n. s. On dead stems of Gleome integ- 
rifolia. Helena, Mont., August, 1888. Rev. E. D. Kelsey, No. 137. 
Subcuticular, then erumpent, forming grayish-olive oblong, velutinous 
patches (2-3 by l-2 mm ), or by confluence l cm or more. Hyptu© erect, 
simple or sparingly branched ; septate 100// long or over, and 5-7// 
thick. Conidia elliptical or oblong-elliptical, 1-2 septate (mostly only 
1 septate), minutely hispid, slightly constricted at the septum. There 
are also regular Macrosporium conidia (apparently arising from the 
same hyphre), clavate-obovate, pedicellate, about 4 septate, 15-50 by 
10-15//, the longer ones muriform. From its ambiguous character this 
is an unsatisfactory thing. 
Heterosporium fungtcolum, n. s. On old Pohjporus picipcs. Lin¬ 
coln, Nebr. II. J. Webber. Olivaceous. Hyphte 115-150 by 5-0//, ab¬ 
ruptly bent and crooked above, bearing laterally and terminally the 
oblong elliptical yellowish-brown 1-3-septate, minutely echinulate, 12- 
25 by 7-12//conidia. 
Cercospora sympiioricarpi, n. s. On SympJioricarpus vulgaris. 
Kooks County, Kans. Mr. E. Bartholomew, 227 B. Ilypophyllous, 
on small (l-2 mni ), deep rust-colored round spots. Hyplue fascicu¬ 
late 30-40 by 3//, continuous, brownish, denticulate above. Conidia 
clavate-oblong 20-30 by 3 //; 1-3 septate. 
Cercospora yiridula, n.s. On leaves of Ipomea purpurea. (Con¬ 
volvulus.) Concordia, Mo., October, 1888. Rev. C. H. Demetrio, 214. 
Spots suborbicular (£-} cm ), rather indefinitely margined, dirty brown 
above, paler and greenish-brown below. Hyphm epiphyllous, 25-35 
by 4//, pale brown, continuous, shouldered above, rising in small fasci¬ 
cles from a scanty tubercular base, thickly scattered on the spots, but 
inconspicuous. Conidia subcylindrical but narrowed above, subhya¬ 
line, 0-8-septate, 70-80 by 4//. Differs from C. ipomoece , Winter, in its 
more indefinite and larger spots and shorter conidia. 
Cercospora duplicata, n. s. On large (4-G™ 1 ) dark, dirty brown, 
irregular shaped spots on leaves of Tccoma radicans. St. Martinville, 
La., October, 1888. Langlois, 1549. Hyplue epiphyllous, very short 
