34 
tered. Sporules filiform nearly straight, multinucleate, 30-60 by 1^-2 p 
about the same as in S.helianthi , E. & K., to which this is closely allied. 
Glceosporium oladosporioides, n. s. N. A. F., 2438. On living 
stems and leaves of Hypericum mutilum. Metuchen, N. J., July, 1889. 
Acervuli subcuticular, nearly black, about 35p in diameter, superumpent, 
gregarious. Hyphse fasciculate, continuous, toothed above, hyaline, be¬ 
coming brown. Spores oblong, hyaline, faintly nucleolate, 10-14 by 
34-4A/Z. Yery injurious to the host plant. 
Cylindeosporium iridis, n. s. On Iris versicolor. Iowa City, Iowa, 
June, 1887. A. S. Hitchcock. Acervuli very minute and very numer¬ 
ous, subcuticular, blackish, forming continuous series or strips between 
the nerves of the leaf for several centimeters in length, the exuded 
spores appearing like a white tomentum on the matrix. Spores acicular, 
15-22 by Ip. Hyphse short, subhyaline, mostly toothed above, 8-10 
by 2p. 
Zygodesmus pyrol^:, n. s. On petioles of Pyrola rotundifolia. 
New Brunswick, N. J., July, 1889. Forming a reddish-gray, thelephoroid 
layer enveloping the lower part of the petiole, which is slightly en¬ 
larged and distorted, and finally killed. Hyphse, reddish-brown, much 
branched, the branches often issuing at a right angle, divided at their 
extremities into numerous short, obtuse arms bearing the subglobose, 
8-10//, rather coarsely spinulose-roughened, subhyaline, or reddish- 
brown conidia. The hyphse are 3-4 // thick, and show the zygodesmoid 
joints very distinctly. The geueral appearance is something like that 
of Calyptospora Gceppertiana. 
Cercospora LYSiMACHiiE, n. s. N. A. F., 2475. On Lysimachia 
stricta. Jonesburgh, N. J., July, 1889. B. D. H. Spots, none; tufts, 
effused, covering the lower, less abundantly the upper surface of the 
leaf, which soon becomes of a dark red and dries up. Hyphae in dense, 
spreading tufts, subundulate, subentire, reddish-brown, continuous, 40- 
50 by 4//. Conidia, slender, obclavate, multinucleate (becoming sep¬ 
tate), rusty-brown, 50-80 by 3 p. Under the hand lens this resembles 
C. lythri. West (specc. in Kunzes F. Sel., 594), but that" has longer, 
slenderer, less densely tufted hyphm and shorter, broader conidia. 
Cercospora cleomis, n. s. On Cleome pungens. New Brunswick, 
N. J. Spots amphigenous, suborbicular, gray with a narrow dark border, 
2-4 millimeters in diameter. Hyphse amphigenous, loosely tufted, pale 
brown, septate, geniculate, 75-110 by 3^-4//. Conidia slender, hyaline, 
multiseptate, 75-100 by 3-3J//. Differs from Cercospora capparidis , 
Sacc. in the character of the spots and in its longer conidia and septate 
hyphse. 
Colletotrichum spinaci^e, n. s. On living leaves of spinach, which 
is much injured by it. Newark, N. J., February, 1890. Maculicolous. 
Spots round, dirty whitish or greenish, 2-4 millimeters iu diameter, with 
a slightly raised border. Acervuli amphigenous, punctiform, 40-75 p in 
diameter, clothed with a few (3-12) erector spreading bristle-like hairs, 
