Annual Report of the State Botanist. 35 



In our plant there is apparently a tendency to branch and divide 

 more freely at the apex of the frond and less freely and deeply at 

 the apices of the segments than in the European. So far as I know 

 it has not before been found in this country. Probably there mil 

 be a considerable demand for it by lovers and propag-ators of feras, 

 but it is to be hoped that specimens will not be taken so freely from 

 the patch as to destroy the station. 



Isoetes echinospora Durieu. 

 Cheney pond. August. 



Riccia fluitans L. var. SuUivantii AusL 

 Muddy places in ditches. Selkirk. June. 



CoUybia Familia Pk. 



This species is not rare in Cattaraugus county. It grows in clus- 

 ters of very many individuals on old prostrate trunks and decaj'ing 

 wood of hemlock. It varies in color from nearly white to brown. 

 It is somewhat hygrophanous and the stem is more or less villose- 

 tomentose at the base. It is allied to C. acervata, but the pileus is 

 not umbonate, there are no rufous or incarnate tints either in the 

 pileus lamellae or stem, and the spores are minute and globose 

 .00012 to .00016 inch in diameter, not elliptical as in that species. 



Pleurotus atrocseruleus Fr. 



In Sylloge the spores of this species are said to be globose, 2 to 3 

 mk. in diameter. If this is correct then the plant referred to this 

 species in Report 39, p. 65, must be distinct. On the other hand 

 both Smith and Cooke represent the spores of this species as 

 elliptical and closely agreeing \vith those of the American plant in 

 dimensions. 



On the supposition that the English mycologists are correct in 

 their representations of the spores of this species our plant can 

 scarcely be more than a variety differing in color from the tyi)o. 

 Fine specimens were found at Carrollton gi'owing on the trunk of a 

 cucumber tree. It seems best at least to designate it as a variety, 

 for it does not appear to exhibit at all the dark blue hue so 

 characteristic of the type. 



Var. griseus. Pileus gr.iyish or .i;i;iyish-browu, clothed with 

 rather coai-se pointed whitish or grayish hairs ; lamelhc not broad : 

 spores elliptical, sometimes slightly curved, .0003 in. long, .0001(5 

 -broad. 



