28 THIRTY-THIRD ANNUAL REPORT OF THE 
A species of Vermicularia often occurs on the spots formed by the 
Protomyces. 
Melampsora Hartigii, Thum. Living leaves of willows, Saliz cordata 
and S. nigra. Albany and Helderberg mountains. July to Oct. 
AKcidium cimicifugatum Schw. Living leaves of black snakeroot, 
Cimicifuga racemosa, Buffalo. Clinton. July. - 
Reestelia Ellisii Pk&. Living leaves of shad bush, Amelanchier 
Canadensis. Riverhead. Sept. 
Cronartium asclepiadeum /7r. Living leaves of sweet fern, Comptonia 
asplenifolia. Long Island. Sept. 
Stilbum pruinosipes, 7. sp. Stem slender, equal or slightly tapering 
upward, scarcely one line high, blackish, pruinose; head small, sub- 
globose, chestnut colored or blackish ; spores very minute, elliptical. 
Dead stems of raspberry, Rubus strigosus. Center. Oct. 
Stilbum erythrocephalum Ditiém. Cow-dung. Buffalo. Clinton. 
Periconia parasitica, 2. sp. Stem slender,smooth, equal, subpellucid, 
white; head subglobose or lenticular, white ; spores obovate elliptical 
or oblong, .0003 in. to .0005 in. long, about .0002 in. broad. Dead 
branches of water beech, Carpinus Americana, and parasitic on 
Cheirospora botryospora. Charlton. July. 
This resembles Stilbwm cundidum,. but the spores are not diffluent 
and the heads are more depressed and whiter. re 
Tubercularia Celastri Schw. Dead stems of bitter sweet, Celastrus 
scandens. Charlton. July. 
Helminthosporium Pruni B&. & C. Dead branches of choke cherry, 
Prunus Virginiana. Center. June. The spores in this species are very 
variable both in length and in the number of septa. 
Macrosporium Meliloti, x. sy. Spots irregular, terminal or marginal, 
blackish-brown; flocci short, colored, septate, generally flexuous; spores 
subelliptical, or clavate, generally tapering below into a short pedicel, 
three to five-septate with a few longitudinal septa, colored, .001 in. to 
.002 in. long. Living leaves of melilot. Newburgh. July. . 
Alternaria Chartarum Preuss. Damp paper. Albany. Nov. 
Helicosporium cinereum, 7. sp. (Plate 2, figs. 4-6.) Patches effused, 
thin, cinereous; floeci slender, sparingly branched, septate, blackish- 
brown, the articulations longer than broad; spores nearly colorless, 
grayish or cinereous in the mass, coiled in three or four volutions, 
diameter of the coil .0008 in. to .001 in. Decaying wood. North 
Greenbush. June. Thespecies is easily distinguished from ZH, olivaceum 
by its cinereous color and from H. obscurum by the more numerous 
yolutions of the spores. 
Polyactis Streptothrix, C. @ #. Living or languishing leaves of 
cohosh, Caulophyllum thalictroides. Jamesville. Aug. The spores 
in our specimens, as well as in authentic specimens received from Mr. 
Ellis, are .011 to.012 mm. in diameter, not .018 mm. as required by the 
description. 
Pyricularia grisea, Sace (Trichotheciwm griseum, Cke). Living leaves 
of crab grass, Panicum sanguinale. Sandlake. Aug. I do not find 
any published description of this fungus, but specimens have been dis- 
tributed under the latter name by Mr. Ellis. 
Peronospora obducens, Schret, Cotyledonous leaves of touch-me- 
not. Sandlake, May. 
