48 THITRY-FOURTH ANNUAL REPORT OF THE 
are but one or two on a leaf, in other instances they are so numerous 
that nearly all the leaf is discolored. he flocci usually occur on the 
cinereous part of the spot. They are so compactly united in a mass at 
the base that when viewed through a handglass they appear like some 
minute species of Venturia. . 
Cercospora clavata, Ger. Spots small, numerous, irregular, indefi- 
nite, often confluent ; flocci hypophyllous, minutely ‘tufted, abundant, 
short, thick, subflexuous, subnodulose, colored, .OO1 in. to .0015 in 
long ; spores very unequal i in length, cylindrical or bacillary, slightly 
colored, .0015 in, to .005 in. long, three to seven-septate. Living 
leaves of Asclepias incarnata. Albany. Sept. This species is very 
closely related to the preceding one. The flocci and spores are nearly 
alike in both, but the external appearance of the two is quite different. 
In this species the spots are small and numerous and have no cinereous 
center; the flocci are on the lower surface of the leaf and the tufts are 
so numerous and crowded that, with the spores, they form a combina: 
ous velvety stratum. It is Helininthosporium clavatum, Ger. 
Cercospora Boehmerie, n. sp. Spots small, numerous, often con- 
fluent, angular, limited by the veinlets, brownish, sometimes becom- 
ing arid and orayish ; flocci hypophyllous, tufted, short, subflexuous, 
colored ; spores subcylindrical or bacillary, generally curved, four or 
five-septate, colored, .0016 in. to .0035 in. long. Living leaves of 
the false nettle, Behmeria cylindrica. South Ballston. Sept. The 
tufts are very numerous but so minute that they are scarcely visible to 
the naked eye. ‘They are compacily united at the base in a sort of 
sclerotoid mass as in C. venturioides. The spots, though numerous, 
are not very conspicuous because of their dull, pale color. 
Cercospora Acalyphe, 2. sp. Spots very small, orbicular, arid, 
whitish with a narrow purplish-brown border; flocci epiphyllous, 
tufted, subflexuous, septate, colored ; spores slender, bacillary, five to 
seven-septate, colorless, .002 in. to 003 in. long, .00016 in. broad 
in the widest part. Living leaves of three-seeded mercury, Acalypha 
Virginica. Albany. Sept. 
Verticillium candidum, 7. sp. (Plate 2, figs. 11-13.) White; fer- 
tile flocei erect, septate, branched, the branches opposite or verticillate, 
sometimes with verticillate ramuli ; spores terminal, globose, colorless, 
00016 in. to .0002 in. in diameter. Decaying wood and bark in 
damp secluded places. Helderberg mountains, Oct. and Nov. It 
forrms more or less extensive thin, white patches. The sterile flocci 
are usually thicker than the fertile. 
Diplocladium minus, Bon. Decaying Agarics and Polypori. Hel- 
derberg mountains. Nov. It forms dense felty patches of intricate 
white filaments on the soft decaying substance of the matrix. It is 
distinguished from Verticilliwm epimyces by its clear white color and 
uniseptate spores. 
Fusisporium tenuissimum, 7”. sp. Tufts superficial, very minute, 
lax, forming thin subpulyerulent whitish patches; flocci branched, 
colorless, subconglutinate at the base; spores fusiform, straight or 
curved, three to five-septate, colorless, .0008 in. to .0016 in. long, .00016 
in. to .0002 in. broad, Dead stems of herbs. Schenectady. Sept. 
The tufts are so minute that they appear to the naked eye like patches 
