CLASSIFICATION 201 



0. pseudoandrosacea.- — Cap very thin, convex or expanded, um- 

 bilicate, and at length infundibuhform, striately phcate, edge crenu- 

 late, smooth, whitish or greyish, about | in. across ; gills deeply 

 decurrent, distant, rather triangular, whitish ; stem slender, equal, 

 whitish or greyish, about i in. long. 



Alhed to 0. griseofallida, but much more slender ; differs from 

 0. grisea in the infundibuliform or umbilicate cap. 



Among short grass. 



0. griseopallida. — Cap thin, convex, then plane, umbilicate, even, 

 smooth, hygrophanous, somewhat shining, brownish grey, becoming 

 hoary, often unequal or excentric, edge drooping but not incurved, 

 up to I in. across ; gills decurrent, broadest behind, rather thick, 

 colour of the cap when moist, darker when dry ; stem equal or 

 slightly thickened upwards, smooth, brown, up to \ in. long. 



Somewhat resembling 0. iimbellifera and 0. rustica, differing from 

 both in the cap not being striate when moist. 



On naked ground. 



0. bibiila. — Cap soon expanded and plane or more or less umbili- 

 cate, edge remaining for some time incurved, smooth, even, ^-| in. 

 across ; the entire plant is a clear yellowish green when moist, the 

 stem and gills perhaps being a little clearer yellow than the cap, 

 which becomes tinged with grey when dry ; gills shortly decurrent, 

 slightly arcuate and somewhat distant ; stem i-ij in. long, slender, 

 slightly thickened downwards and surrounded by white strigose 

 down at the base, listulose ; spores hyaline, smooth, elliptical, 



5-6+4/'- 



First found in this country in Mulgrave Woods, at the Y.N.U. 

 Foray, September, 1910. Differs from Hygrophorus wynnicB in its 

 habitat. 



On fallen fir bark among moss. 



0. stellata. — White. Cap very thin, convex, umbilicate, pellu- 

 cidly striate, smooth, up to | in. across ; gills decurrent, rather 

 distant, thin, not triangular ; stem very slender, fragile, often 

 curved, base dilated and radiately strigose or hairy, usually less 

 than I in. long. 



Allied to 0. integrella, but distinguished by the broader gills. 

 Differs from 0. nmhellifera by being more slender, usually excentric 

 cap, and general form. 



On rotten trunks, wood, etc. 



B. Mycenarii 

 0. cmnpanella. — Cap thin, campanulately convex, sometimes 

 becoming expanded, umbilicate, striate, hygrophanous, rusty 

 yellow, about | in. across ; gills decurrent, rather crowded, con- 

 nected by veins, 5/ellowish ; stem horny, smooth, tapering, bay, and 

 with tawny down at the base, about i| in. long. 



