PLEURAGE 89 
Distinctive characters: Tufts of hairs on the perithecium and 
the large number of small spores. 
Cultivated specimens: On horse and cow dung, New York 
City, Aug. 1899; rabbit dung, Ft. Lee, N. J., Nov. 1899; rabbit 
dung, Rooks Co., Kan., July 1899 (Bartholomew) ; horse, rabbit, 
and cow dung, Auburn, Ala., Aug. 1899 (Earle); horse dung, 
Summit, Mont., Aug. 1900 (Griffiths & Lange). 
The species varies greatly in characteristics of the hairs on the 
beak of the perithecium. In some specimens from the vicinity 
of New York, the perithecia had almost no hair at all on them, 
while others were densely covered. The same thing may be said 
of the Kansas specimens also. 
The number of spores in the ascus is usually given as 128. 
This figure is based on an account given by Winter. He counted 
the number in one or two asci and found them to be as given 
above. In my specimens the number is almost invariably greater 
than this. In but a single case have 128-spored asci been found 
and that in one of the Alabama cultures. As high as 200 spores 
have been counted, and it was known at the same time that all of 
them could not be seen on account of the great number in the 
ascus. It is thought therefore that the number follows the regular 
law which would give us here 8 mitotic divisions and 256 spores. 
On account of the difficulty of isolating the delicate asci it is diffi- 
cult to determine the exact number with any degree of certainty. 
29. Pleurage collapsa sp. nov. 
Perithecia scattered or aggregated, one-half to two-thirds im- 
mersed, 400-450 L x 500-600 #, thin membranaceous, at first 
greenish below but soon becoming brown, pyriform to subglobose 
with papilliform to short cylindricial black beak, the base of 
which, like the upper exposed portion of the perithecium, is uni- 
formly covered with long flexuous septate brown hairs. 
Asci 64-spored, fusiform, contracted and sharply rounded 
above and contracted below into a short blunt stipe, very evanes- 
cent, about65 بر‎ x 210 u : paraphyses ventricose, agglutinated, larg- 
est near the middle, longer than the asci, but not much mixed with 
them 
Spores in several series, ellipsoid and broadly rounded at the 
ends, 10-144 x 18-21 p, ranging from hyaline when young 
through olivaceous to dark prosa and opaque ; primary append- 
