334 Transactions. — Botany. 



97. Mycenafilipes,'Bvi\\.,\,.2?>0; Austr. Fung., p. 24; Sacc, 

 Syll. v., no. 1064. 



Pileus membranaceous, conical, then campanulate, at 

 length expanded, obtuse, striate, greyish-brown or livid-grey, 

 rarely whitish, glabrous, 1-1-5 cm. across; gills free or very 

 slightly adnexed, narrow, ventricose, crowded, white ; stem 

 6-10 cm. long, very slender, equal, rather fragile, flaccid, 

 glabrous, whitish, base rooting, fibrillose, hollow. 



Among fallen leaves, in damp shady places. New Zealand. 

 Australia, Ceylon, India, Europe, United States. 



Fragile. Distinguished among the small delicate species 

 of Mycena by the very slender elongated stem, terminating in 

 a long downy rooting base, which runs between the dead 

 leaves, &c., on which the fungus grows. 



98. Mycena hiemalis, Osbeck, in Ketz., suppl. ii., p. 19; 

 Austr. Fung., p. 26 ; Sacc, Syll. v., no. 1148. 



Pileus very thin, campanulate, slightly umbonate, margin 

 striate, flesh-colour, rufescent, or white, often mealy or 

 pruinose, 4-6 mm. across ; gills uncinately-adnate, narrow, 

 whitish; spores narrowly elliptical, 7-8 x 3'5yu.; cystidia 

 absent ; stem l'5-2-5 cm. long, slender, curved and downy 

 near the base, whitish. 



On trunks of trees, among moss and lichens. New Zealand. 

 Australia, Europe, Central America, Cuba. 



Superficially, closely resembling Mycena corticola, with 

 which it sometimes grows intermixed, but separated by its 

 more scattered habit, longer stem, and more especially by the 

 elliptical spores and absence of cystidia in the gills. 



99. Mycena corticola, Fries, Syst. Myc, i., p. 159; Sacc, 

 Syll. v., no. 1147 ; Austr., Fung., p. 25. 



Pileus very thin and delicate, hemispherical, obtuse, at 

 length more or less umbilicate, deeply and distantly striate, 

 glabrous, or floccul'osely pruinose or mealy, 4-7 mm. across ; 

 colour very variable, blackish, bluish, brown, or grey ; gills 

 adnate, with a slight decurrent tooth, broad, somewhat ovate, 

 pallid; spores globose, hyaline, smooth, 9-10 /a diameter; 

 cystidia obtusely fusiform, 50-60 x 8-10 /x ; stem about 1 cm. 

 long, very slender, glabrous or minutely scurfy, paler than 

 the pileus, incurved, minutely fistulose. 



On bark of living trees, among moss and lichens. Danne- 

 virke. New Zealand. Australia, Europe, United States. 



Closely allied to Mycena hiemalis, but readily distinguished 

 by the globose spores, the presence of cystidia in the broad 

 ovate gills, and the densely gregarious habit. 



