14 
JOURNAL OF MYCOLOGY. 
[Vol. Ill, No. 2, 
septate, 50—70 x 4—5 /'-, oblong, becoming obclavate, same color as the 
hyphse, 40—70 x 4—6 p, 3—5-septate and some of them strongly con¬ 
stricted at the septa. This appears to be the only species.described on 
coniferous trees, but it is a good Cercospora. 
Yar. Juniperi, collected by Dr. J. J. Davis at Powers’ Lake, Kenosha 
Co., Wis., August, 1886, on foliage of Juniperus Virginiana, differs in its 
darker-colored tufts and more dwarfish habit— conidia 15—30 x 3 p and 
hyphse proportionally smaller. 
Cercospora condensata, E. & K., var. Desmanthi, was also 
sent by Mr. Langlois (No. 548) on Desmanthus brachylobus. The habit 
of growth is so different that we now think it should constitute a distinct 
species, C. Desmanthi, E. & K. 
Cercospora Amaryllidis, E. & E.—On fading leaves of Ama¬ 
ryllis (cult), Louisiana, July, 1886. Langlois, No. 589. Spots indis¬ 
tinct or none; amphigenous, but mostly epipliyllous, forming gray¬ 
ish, subelongated, indefinitely-limited patches scattered irregularly 
over the leaf; hyphse rather densely tufted, coarse (6—7 p thick 
and 50—70 p long), brown, sparingly septate, subtruneate above and 
sparingly toothed, nearly straight; conidia much attenuated above 
and often subundulate, hyaline, 4—6-septate, 60—80 x 4—5 P. A very 
distinct species. The hyphse arise from a tubercular base and are for 
the most part nearly straight, cylindrical and entire, and of a light gray 
color at first, but become darker. 
Cercospora Saururi, E. & E.—On living leaves of Saururus 
cernuus , Lousiana, July, 1886. Langlois, No. 599. Spots amphigen- 
ous, nearly black, suborbicular or irregular, not very accurately 
limited, leaf turns yellowish around them (i—f cm.); hyphse amphig¬ 
enous, tufted, pale brown, sparingly septate, subundulate, but nearly 
straight, 35—50 x 4 p ; conidia hyaline, 3—5-septate, somewhat curved, 
50—75 x 3 P . 
Cercospora repens, E. & E.—On living leaves of Bmchylosper- 
mum difforme , St. Gabriel, La., September, 1886. Langlois, No. 512. 
Leaves blotched above, with irregular-shaped, indefinite, purplish- 
brown spots, lower surface only faintly marked with reddish-brown 
stains; hyphse hypopliyllous, prostrate, spreading over a large part of 
the leaf, slender (2^—3 P), branching, brown, bearing the slender, 
hyaline, multinucleate, 70—80 x 2£— 3 P conidia at their extremities. 
Cercospora Novebokacensis, E. & E.—On leaves of Vernonia 
novebomcensis , Columbia, Mo., September, 1886. (Galloway, No. 163.) 
Spots none; hypopliyllous, effused, forming olivaceous patches cov¬ 
ering the greater part of the surface of the leaf ; hyphse loosely fascicu¬ 
late and effused olive-brown, more or less undulate and toothed above, 
1—5-septate, 50 — 75 x 4 P ; conidia oblong-cylindrical, subolivaceous, 
3—7-septate, obtuse at each end, very variable in length, 20-70 x 3—4 p. 
Has the general appearance of C. clavata, Ger., nor are the microscopical 
