50 NORTH AMERICAN SORDARIACEAE 
stout cylindrical beak, as well as all exposed portions of the peri- 
thecium densely and uniformly covered with rather short stout 
abundantly septate brown hyaline-tipped straight hairs. 
Asci 8-spored, cylindrical, slightly contracted and rounded 
above and gradually narrowed below intoa long slender straight, 
curved or crooked stipe, 18-20 ux 270-350, persistent: para- 
physes abundant, septate, often slightly constricted at lower septa, 
mixed with and much longer than the asci. 
Spores uniseriate, ellipsoid, rounded at both ends, ranging from 
hyaline when young through olivaceous to dark brown and opaque, 
12-14 ,م 20-37 عام‎ with a minute hyaline apiculum at lower end 
of each spore: gelatinous envelope narrow and swelling but slightly 
in water. (Pl. rg. f. 4-6.) 
Distinctive characters : Small spores with one minute apiculum 
below and a very narrow hyaline envelope. 
Cultivated specimens : On horse and cow dung, Summit, Mont., 
Aug. 1900 (Griffiths & Lange). 
In outward appearance and habitat, this species resembles S. 
Montanensis very closely. It can be readily distinguished from 
the latter, however, by spore characters. The plant was culti- 
vated upon material collected on account of the presence of S. 
Montanensis. Inthe cultures it was difficult to separate the two 
except by the more abundant development of mycelium in the 
latter although they occurred on distinct areas of the substrata. 
10. Sordaria seminuda sp. nov. 
Perithecia sunken, scattered or aggregated in small clusters, 
pyriform, thin, membranaceous, olivaceous below but black in all 
exposed portions, 300—400 م‎ x 500-600 ہم‎ the black papilliform 
projecting beak and all exposed positions covered with short 
straight brown hyaline-tipped scarcely separate hairs arranged in 
small groups or uniformly scattered. 
Asci 8-spored, cylindrical, broadly rounded and perforated 
above and contracted below into a long, crooked stipe, 180-200 £ 
x 12-14 رم‎ rather persistent: paraphyses filiform, septate, persist- 
ent, not numerous, seldom exceeding the asci in length. 
Spores obliquely or vertically uniseriate, ellipsoid or often 
ovate, broadly rounded above but more acutely so below, 10-12 م‎ 
x 16-22 p, ranging from hyaline when young though olivaceous 
to dark brown and opaque; lower end of spore tipped with a 
short hyaline cylindrical apiculum which is surrounded by a trian- 
gular hyaline gelatinous envelope extending over the lower third 
of the spore. (Pl. rg. f. 10-12.) 
