110 NORTH AMERICAN SORDARIACEAE 
Perithecia sunken and scattered or aggregated in small loose 
clusters which become erumpent and from small elevations of the 
material of the substratum, which, on disintegrating, leaves the 
perithecia exposed, 150-180 ۸ x 200-225 رم‎ subglobose to ovate 
papilliform or conical beak, thin membranaceous or often inclined 
to be brittle black and shining above 
Asci 8-spored, cylindrical, broadly rounded above and con- 
tracted below into a short blunt stipe, persistent, 12-16 x 
105—135 ` paraphyses filiform, septate, constricted especially be- 
low, sparingly branched, abundant, longer than the asci and mixed 
with them. 
Spores obliquely biseriate, cylindrical, 4-celled, deeply con- 
stricted, easily separable, rounded at the ends, 5-64 x 32-35 4, 
ranging from hyaline when young through yellow to dark brown 
and opaque; hyaline envelope becoming prominent in water and 
evidently striated corresponding with the septation of the spores. 
(Pl. 15. f. 22-24.) 
Cultivated specimens : On horse and cow dung, New York 
City, Oct. 1899 ; rabbit dung, Ft. Lee, N, J., Nov. 1899 ; rabbit 
dung, Bronx Park, N. Y., Jan. 1900 (Wilson) ; rabbit dung, Gun- 
nison, Col., Aug. 1899 (Bartholomew); rabbit dung, London, Ont., 
Aug. 1898 (Dearness) ; rabbit dung, Tucson, Ariz., Jan. 1900 
(Tyler); rabbit dung, Austin, Texas, Jan. 1900 (Long); rabbit 
dung,Mesilla Park, N. M., Jan. 1900 (Wooton) ; rabbit dung, Lin- 
coln Co., N. M., Aug. 1900 (Earle); horse dung, Great Falls, 
Mont., Aug. 1900. 
The description of the perithecium as given above applies 
especially to the species as grown in culture chambers on rabbit 
dung. On other substrata the habit of growth would be slightly 
different; in a dense substratum such as cow dung the perithecia 
almost always remain sunken. 
5. Sporormia lata sp. nov. 
Perithecia scattered, sunken and firmly attached to the sub- 
stratum by an abundance of fine white rhizoids, about 375 x 
600 ہم‎ subglobose to ovate with a short papilliform bare black 
and shining beak, membranaceous to coriaceous, black and opaque. 
Asci 8-spored, cylindrical, broadly rounded above and narrowed 
below into a short stout blunt stipe, persistent, 30-35 4 x 260- 
320g: paraphyses filiform, septate, richly branched, very numer- 
ous, slightly longer than the asci and mixed with them 
pores uniseriate, oval to broadly cylindrical, broadly rounded 
