278 



Mycologia 



straight, fragile, hollow, smooth, white, 10-13 cm. long, 2-4 mm. 

 thick. 



Type locality : Maryland, New York. 

 Habitat : On the ground in an old dooryard. 

 Distribution : New York. 



Illustration : Ann. Rep. N. Y. State Mus. 30 : pi. 1, f. 1-4. 



Type specimens were collected by Peck in September. Figured 

 specimens attached to a sheet are from Knowersville and were 

 called " P. gracilis Fr." Half a dozen other collections from New 

 York appear to match the type. P. debilis does not seem very 

 distinct. 



Doubtful Species 



Psathyrella crenata (Lasch) Fries, Hymen. Eur. 315. 1874. 

 Kauffman refers a Michigan plant to this species, citing differ- 

 ences, and adding that it agrees well with Cooke's figure. 



Psathyrella ■ falcifolia (Mont.) Sacc. Syll. Fung. 5: 1134. 1887. 

 (Agaricus falcifolius Mont. Syll. Crypt. 127. 1856.) Described 

 from specimens collected by Sullivant at Columbus, Ohio, growing 

 in clusters on logs and dead leaves. Type not seen. 



Psathyrella hiascens (Fries) Quel. Champ. Jura Vosg. 123. 

 1872. (Agaricus hiascens Fries, Syst. Myc. 1: 303. 1821.) 

 Peck reported this species from New York on the basis of speci- 

 mens collected by him in June under willows at West Albany, and 

 drawn in color. They are thin, campanulate, and multistriate, 

 with very long, slender stipes ; — quite different in appearance from 

 the drawings made by Oersted in Costa Rica. The spores of 

 Peck's specimens are said to measure 12-16 x 8-10 /a. 



Psathyrella rupincola (Mont.) Sacc. Syll. Fung. 5: 1129. 1887. 

 (Agaricus rupincola Mont. Syll. Crypt. 127. 1856.) Described 

 from specimens collected at Columbus, Ohio, by Sullivant, in May, 

 growing from fissures in rocks. Type not seen. 



New Combinations 

 For the convenience of those who prefer to use the older nomen- 

 clature, the following species described as new in Atylospora are 

 transferred to Psathyra: 



Atylospora australis = Psathyra australis 

 Atylospora prunuliformis — Psathyra prunuliformis 

 Atylospora striatula = Psathyra striatula 

 New York Botanical Garden. 



