REPORT OF THE STATE BOTANIST I9I7 65 



are of the same shape but I have not found them on the sides of 

 the lamellae in the material examined. 



The fibrous or hairy " pellicle " of the pileus alone does not 

 appear to warrant the recognition of a distinct generic type. 

 Although Murrill (North American Flora, 9: 287. 191 5) recognizes 

 the genus Crinipellis, it is evident that he does not consider the 

 hairy " pellicle " in itself an important generic character since he 

 includes plants with the pileus devoid of hairs but covered with 

 spines (Crinipellis echinulata Murr. 1. c. 288) , a feature 

 conspicuous in a number of species of Marasmius. Furthermore he 

 transfers two of Patouillard's species of Crinipellis (C r. a s p e r i- 

 folia and Cr. calospora) to Pleurotopsis, a section of 

 Marasmius including coriaceous forms which are resupinate when 

 young, but the pileus varying in structure (North American Flora, 

 9:238. 1915). 



The four species with which we are concerned here seem to 

 belong essentially in Marasmius. The mere fact that the hairs 

 on the pileus are long does not warrant their separation from 

 other coriaceous species with a fibrous " pellicle " such as are known 

 in Marasmius, on the ground of difference in length of hairs alone 

 and therefore the following arrangement is proposed for the species 

 treated here. 



Marasmius campanellus ( Peck) Atkinson and House, 

 nov. comb. Collybia campanella Peck, N. Y. State Mus., 

 Bui. 116, p. 19. 1907. 



Marasmius setipes (Peck) Atkinson and House, nov. 

 com. Collybia stipitaria var. setipes Peck, 38th Rep't 

 N. Y. State Mus., p. 109. 1885. 



Marasmius stipitarius (Fries) Atkinson and House, 

 nov. comb. Agaric us (Collybia) stipitarius Fr. Syst. 

 Myc, I : 138. 1821. 



Marasmius zonatus ( Peck) Atkinson and House, nov. 

 comb. Agaric us (Collybia) zonatus Peck, 24th Rep't 

 N. Y. State Mus., p. 61. 1872. 



3 



