64 THIRTIETH REPORT ON THE STATE MUSEUM. 
sunken, perforate, sometimes whitish ; spores unequally ellipti- 
cal, colored, .0004—.0005' long. 
Maple bark, Acer saccharinum. Sandlake. November. 
This species is apparently allied to H. Laschii Nke., and 
approaches in some respects species of Nummularia. 
DOTHIDEA RIMINCOLA Schw. 
Dead twigs of Diervilla trifida. Buffalo. Clinton. 
I fail to see why Schweinitz referred this fungus to the 
genus Hysterium since there is no chink or linear opening in 
any of the specimens that have come under my inspection. 
DOTHIDEA EPISPHERIA 2. Sp. 
Stroma small, slightly prominent, scattered or subconfiuent, 
often irregular, carbonaceous, black ; nuclei numerous, white 
within ; spores crowded or biseriate, lanceolate or subfusiform, 
colorless, .0006—.0007 long. 
Effete Diatrype stigma. Maryland. September. 
The spores may possibly be uniseptate when fully mature. 
Those examined are not clearly septate. 
DoTHIDEA CaARIcis F7. 
Dead leaves of Carex Pennsylvoanica. West Albany. June. 
DoTHIDEA OsMUNDE P. & C. n. sp. 
Minute, linear, innate, erumpent through a narrow chink, 
scarcely emergent, black, nuclei whitish ; asci subcylindrical ; 
spores narrow, oblong, uniseptate, slightly constricted, color- 
less, .00065' long, one cell usually a little swollen at the septum. 
Dead stems of Osmunda. Buffalo. Clinton. Sandlake. 
June. 
Authors do not all agree in the characters they ascribe to the 
spores of Dothidea filicina, one describing them as ‘‘ elliptical 
uniseptate,’’ another as ‘‘triseptate.’’ Neither of these descrip- 
tions will apply to the spores of the species just characterized. 
The Dothidea which I tind on Ptleris aquilina, the habitat 
assigned to D. filicina, has the spores triseptate. 
DIATRYPE FERRUGINEA FT. 
Dead branches of birch, Betula lutea. Sandlake. August. 
VALSA JUGLANDICOLA Sch. 
Dead hickory branches. Buffalo. December. Clinton. 
West Troy. June. 
