108 Twenty-fifth Report ojs the Stjlte Museum, 



tour I detected it in two localities ; one in the ravine below Rain- 

 bow Falls, near the outlet of Lower Ausable Lake, the other at 

 the base of Bartlett Mt. Probably it occurs in other places east 

 of Mt. Marcy and in the ravines of the Gothics. 



WOODSIA GLABELLA ^. Br. 



The form at Lake Avalanche is larger than that at Little Falls 

 and approaches more closely in appearance to W. Ilvensis. 



BOTRYOHIUM SIMPLEX Hltch. 



Otisco. S. N. (Jowles. 



Orthotrichum Canadense Br. dh Sch. 



Most of the specimens formerly referred to this species are now 

 considered to be 0. Ohioense S. & L., ined. 



Orthotrichum leiooarpum Br. (& Sch. 



The specimens formerly referred to this species are a form of 

 0. speciosum Nees, with the dry capsule entirely smooth. It may 

 be distinguished from 0. leiocafpum by its having only eight cilia. 



Orthotrichum psilocarpum James. 



This is synonymous with 0. pusilluin Mitten, by which it is 

 antedated. 



Hypnttm miorocarpum v. A.NIS00ARPTJM Bry. Eur. 



Helderberg Mts. Austin. Remarkable for the very long 

 rostrum of the operculum. 



Plagiotheciijm piliferum v. brevipilum Bry. Eur. 



The sterile form somewhat doubtfully thus referred in a former 

 report is found to be Plagiothecium Mullerianurn Schp. Mr. 

 Austin sends fertile specimens from Sam's Point, Lister county. 



Agaricus Amerioanus Ph. 



This plant sometimes grows in large tufts of twenty or thirty 

 individuals. It is at first nearly white. The annulus is slightly 

 attached to the stem and is sometimes fugacious. The spores are 

 broadly ovate or subglobose, generally nucleate, .00035' long. 



Agaricus ocHROPrRPUREus Berh. 



This species is found from June to September. It occurred in 

 Greenbush the past season in great abundance. It often manifests 

 a tendency to grow in circles. 



