An Hours Botanizing on the Mountain Side. 307 



Everhart's Pyrenoinjcetes, from material collected near 

 Loudon, Ont. 



A still more interesting species obtained on the same 

 host is a Fenestella, probably F. ijrinceps. It was not, at 

 the time of collection, mature enough to be sure of the 

 species. It, too, is a pyrenomycete ; microscopically less 

 attractive than Ottilia, but when sectioned and prepared 

 for study under the microscope much more beautiful. For 

 study and identification freehand sections of these forms 

 are easily made and are quite satisfactory, if mounted in 

 water or dilute glycerine. 



Another imperfect but interesting form, found on the 

 same host, proved a new species. It was described and 

 figured in the current volume of Proceedings of the Cana- 

 dian Institute, under the name Haiolosporella Sta'phylina. 

 The perithecia are grouped in small round stromata with 

 their apices projecting. The relatively large brownish 

 spores appear sessile on the hymenial lining of the peri- 

 thecia. 



Another sphaereloid ascomycete on the twigs, I have 

 not yet identified. It is not very far from Prof. Peck's 

 Metasplueria on the same host. Besides the foregoing, all 

 on bladder-nut, two or three cosmopolitan species were 

 observed but not recorded. 



The more conspicuous hypoxylons and valsete were 

 found in variety and in fine fruiting condition, on decay- 

 ing birch, hawthorn and sumach, a few rods nearer the 

 ascent. Coriaceous hymenomycetes — stereum, diedalea 

 and other polyporei were in fair profusion, but the sea- 

 son was too far advanced to find any of the fleshy species 

 except Collyhia velutipes, the gregarious velvet-footed 

 collybe which is usually given a place in lists of edible 

 toadstools. Its favorite situation is on partially decayed 

 elm, but it ^rows on other kinds of wood. 



