PLEUROTUS 451 



panded, subreniform and reflexed, fleshy, velvety, then smooth, viscid. 

 Gills pallid yellow, concurrent, then appearing adnate, crowded, rather 

 broad, sometimes crisped at the base. Flesh, upper layer gelatinous, 

 brownish, lower whitish. Spores white, elliptical, 7-9 x 4-5 p, 1-2- 

 guttulate. On trunks of willow, mountain ash. Aug. Oct. Un- 

 common, (v.v.) 



1469. P. fluxilis Fr. (= Calathinus fiuxilis (Fr.) Quel.) Cke. Illus. 

 no. 291, t. 244, top figs. Fluxilis, fluid. 



P. 2-3 cm., somewhat umber, pale grey, or olivaceous, thin, dimidiate, 

 sessile, reniform, covered with a fluid, gelatinous stratum. Gills whitish, 

 linear, 2 mm. broad, rounded behind, distant. Flesh thin, soft, yellow- 

 ish. Spores white, "elliptical-oblong, 10/Li, guttate" Quel. On mossy 

 beech trunks, and on wood, and sawdust. Oct. Eare. 



1470. P. cyphellaeformis Berk. (= Dictyolus cyphellaeformis (Berk.) 

 Cost. & Duf.) Cke. Illus. no. 291, t. 244, middle figs. 



Kv<f)e\\a, the hollow of the ear;/orma, shape. 



P. 4-10 mm., cinereous, cup-shaped, then dependent, very minutely 

 strigose, especially at the base; margin paler, sprinkled with a few 

 meal-like scales. Gills pure white, rather distant, the alternate ones 

 shorter, narrow, linear. Flesh, upper layer gelatinous, cinereous, the 

 lower white and very thin. Spores white, sausage-shaped, curved, 

 7-8 x 4/i, 2-guttulate. On dead herbaceous stems, and sticks. Feb. 

 Oct. Uncommon, (v.v.) 



1471. P. applicatus (Batsch) Berk. (= Calathinus applicatus (Batsch) 

 Quel.) Cke. Illus. no. 291, t. 244, bottom figs. 



Applicatus, attached to. 



Entirely dark cinereous. P. 4-7 mm., cup-shaped, orbicular, adnate 

 behind, villose at the base, then reflexed, slightly vittose, or sub- 

 pruinose, substriate when moist. Gills whitish at the edge, few, radi- 

 ating from a white umbilicus, rather thick, broad. Flesh grey, upper 

 layer gelatinous. Spores white, elliptical, 7-9 x 4-5/z, often de- 

 pressed on one side, 1-3-guttulate. On dead branches, and twigs. 

 Jan. Dec. Common, (v.v.) 



C. P. membranaceous, not viscid. 



1472. P. Hobsonii Berk. Cke. Illus. no. 292, t. 212, fig. A. 



Lieut. Julian C. Hobson. 



P. 28 mm., pale grey, membranaceous, reniform, or dimidiate, 

 sessile, minutely downy; margin involute. Gills pallid, rather 

 distant. On larch stumps. Sept. Rare. 



292 



