86 NORTH AMERICAN SORDARIACEAE 
gelatinous envelope surrounding its spores is very slight indeed. 
It is on account of these transitional forms that Schroeter and 
Lindau object to the recognition of genera based on these char- 
acteristics. 
25. PLEURAGE LUTEA (E. & E.) Kuntze, Rev. Gen. Plant. 3°: 505 
| 1898 
Sordaria lutea E. & E. Jour. Mycol. 3: 118. 1887 ; Saccardo, 
Syll. Fung. 9: 486. 189r. 
Philocopra lutea (E. & E.) E. & E., N. Am. Pyren. 132. 1892. 
Perithecia superficial, gregarious or scattered, about .5 x . 
mm., pyriform, slightly coriaceous, and completely covered, with 
the exception of the black bare papilliform beak, with a persistent 
light yellow tomentum composed of branching and slightly rough- 
ened hair. 
Asci clavate, rounded above and contracted below into a mod- 
erately long stipe, 14-17 4 x 135-200: paraphyses not seen. 
Spores 12-16 in an ascus, at first vermiform and greenish 
yellow, finely almond-shaped and opaque, 7-8 p x 14-16 :م‎ 
primary appendage cylindrical, curved, 30-35 4 x 4 م‎ second- 
ary appendage short, slender and attached to apex of the spore. 
Distinctive character: The tomentum of the perithecium. 
Dry specimens: On decaying Kalmia, Newfield, N. J., Nov. 
1879 (Ellis); on dead Rhus Toxicodendron, Long Island, N. Y., 
Apr. 1889 (Zabriskie); on rotten maple, Newfield, N. J., Aug. 
1887 (Ellis). 
As will be easily recognized, the greater part of the description 
of this species is drawn from the original of Mr. Ellis. Although 
the specimens at hand are abundant, there are none of them in good 
condition for study. The species appears somewhat similar to 2 
coprophila as regards the condition of the spores in the perithecium. 
In none of the specimens before me are there any mature spores ; 
the great majority of them are completely cylindrical while a few 
have slightly swollen ends. 
26. Pleurage heterochaeta sp. nov. 
Perithecia superficial or with base slightly sunken, scattered, 
thin, membranaceous, olivaceous in sunken portions but fuscous 
above with blackened apex, somewhat transparent, about 450 # 
x 7004; all exposed portions except the black bare papilliform 
beak covered with short blunt transversely or obliquely septate 
