[=cupularis=, Fr. P. 2-3 mm. resupinate, soft, orbicular, outside even, downy, grey; g. vein-like, simple, radiating from centre. Resembles young condition of _Pleurotus applicatus_. [=fimicola=, Bagl. P. resupinate, thin, concavo-patellate, flesh-colour, with a byssoid border; veins very slight, distant. NYCTALIS, Fr. A. SPELEAE. _Gills crowded, more or less coalescent. Very doubtful, probably morbid forms of Agarics._ [=verpoides=, Fr. P. campan. obtuse, glabrous, brown; g. very thick, coalescent; s. equal, rigid, striate, glabrous. [=cryptarum=, Secr. Foetid. P. conico-deformed, brown; g. adnexed, undulate, subcoalescent, flocculose, fleshy-grey; s. unequal, flexuose, hoary-fibrillose. [=canaliculata=, Pers. P. pallid white, oblique, subumbil. almost glabrous; g. crowded, distinct, almost simple, edge slightly canaliculate; s. solid, subundulate, naked. =caliginosa=, W. G. Sm. P. subumb. edge incurved, greyish, white and silky when dry, 1 cm.; g. subdecur. thick, narrow, branched, grey; s. 3-5 cm. often inflated, whitish, silky, hollow, rusty inside; sp. 5 x 3. B. PARASITAE. _Gills distinct from each other, distant. Growing on decaying fungi._ [=nauseosa=, Weinm. Smell nauseous. P. fleshy, globose then hemisph. ochraceous, pulverulent, edge involute; g. distant, forked, pallid; s. fistulose, thick, obliquely sulcate and twisted, pallid. Larger than _N. asterophora_. =asterophora=, Fr. P. 1-1.5 cm. conical then hemispher. fawn, mealy with large stellate conidia; g. adnate, distant, rather forked, dingy; s. 1-1.5 cm. whitish pruinose then brownish, twisted; sp. 3 x 2. =parasitica=, Fr. P. 1-2 cm. conical then exp. irreg. with grey meal formed of large, elliptical, smooth conidia; g. adnate, thick, distant, then forked and anastomosing, dusky; s. 2-6 cm. whitish, floccosely downy; sp. 5 x 3.5. [=microphylla=, Corda. P. hemispher. soft, glabrous, naked, white; g. adnate, entire, dingy white; s. glabrous, bluish. [=vopiscus=, Fr. P. cup-shaped, reflexed then recurved, pallid; g. thick, radiating from centre; s. short, excentric, curved, flocculose, pallid. LENTINUS, Fr. A. MESOPODES. _Pileus subentire; stem distinct._ * _Pileus squamulose._ =tigrinus=, Fr. P. 3-7 cm. orbicular, umbil. whitish, with blackish innate scales; g. very narrow, tinged yellow; s. 3-5 cm. slender, squamulose; sp. 7 x 3.5. =Dunalii=, Fr. P. umbil. deformed, pallid with spot-like adpressed scales which disappear; g. crowded, pallid; s. 1.5-2 cm. rather silky; sp. ----. =lepideus=, Fr. P. 5-7 cm. tough, depr. irreg. pale ochre breaking up into darker spot-like scales; g. sinuato-decur. broad, whitish; s. 2-3 cm. stout, rooting, tomentosely squamulose; sp. 7 x 3. (10-14 x 6 Sacc.) var. _contiguus_, Fr. P. thinner, plano-depr. and with the slender stem, even.