MYCENA 381 



1211. M. lactea (Pers.) Fr. Cke. Illus. no. 222, t. 159, bottom figs. 



Lactea, milk-white. 



Entirely white. P. 1-2 cm., membranaceous, campanulate, disc 

 sometimes becoming light yellowish, subumbonate, striate when moist, 

 even when dry, margin scalloped. St. 3-7 cm. x 1-2 mm., equal, 

 flexile, smooth, base fibrillosely rooting. Gills adnate, ascending, 

 narrow, crowded. Flesh white, very thin at the margin. Spores white, 

 elliptical, 8-9 x 3-3'5/x,, 1-guttulate. Basidia with 2-sterigmata. 

 Cystidia sparse, subulate, apex 3 /n in diam., base sub ventri cose, 

 35-40 x 9/i. Gregarious. On needles, and twigs. Coniferous woods. 

 July Dec. Common, (v.v.) 



var. pithya (Pers.) Fr. (= Collybia India Fr. sec. Quel.) Fr. Icon. 

 t. 68, fig. 4, as Collybia India Fr. TTITVS, a pine, or fir tree. 

 Snow white, drying up and becoming yellowish. P. 6-10 mm., be- 

 coming almost plane, margin incurved. St. 2-2-5 cm. x 1-2 mm., 

 pulverulent, base villose, subbulbous, villosely strigose. Gills somewJiat 

 wide, distant. On coniferous needles and chips. Sept. Rare. 



var. pulchella Fr. Fr. Icon. t. 80, fig. 3, wrongly cited as t. 79, fig. 3, 

 in text as Mycena lactea Pers. Pulchella, beautiful little. 



Differs from the type in the much thinner p., prominent umbo, and 

 the gills broader at the base and subdistant. Caespitose. On wood. 



M. muscigena (Schum.) Quel. = Collybia muscigena (Schum.) Fr. 



1212. M. gypsea Fr. 71^05, chalk. 

 P. 12 cm., white, or yellowish, disc yellow, membranaceous, some- 

 what fragile, conico-campanulate, umbonate, umbo not prominent, 

 striate to the disc. St. 6-8 cm. x 1-2 mm., white, equal, or attenuated 

 upwards, rigid, fragile, smooth, or pruinose, base villose. Gills shining 

 white, adnate, broadest behind, equally attenuated to the margin. 

 Spores white, elliptical, 8-10 x 4-5 p. Cystidia "obtusely conical, 

 30 x llfj,, or obtuse and broadly thread-shaped above, slightly conical 

 below, 30-62 x 8-16/x" v. Hoehnel. Gregarious and caespitose. 

 Amongst fragments of wood, and on trunks. June Nov. Uncommon. 



1213. M. nivea Quel. Quel. Soc. bot. Fr. xxm, t. 2, fig. 1. 



Nivea, snow-white. 



Shining white, transparent. P. 15 mm., very thin, campanulate, 

 never expanding, sulcate from the apex to the base, pruinose. St. 

 2-3 cm. x 1 mm., rigid, smooth, apex pruinose, base recurved, fbril- 

 lose. Gills adnate, uncinate, narrow, distant. Spores pruniform, 

 10-12/A, granular. On twigs. Deciduous woods. 

 M . galeropsis Fr. = Marasmius dryophilus (Bull.) Karst. var. oedipus 

 (Quel.) Eea. 



