=infumata=, B. and Br. P. 3-4 mm. obtuse, greenish then smoky; g. few, broad, yellow; s. 2 cm. thin, yellow, tomentose below. [=griseolilacina=, Steinh. Entirely greyish lilac, grey when dry; p. umb. then exp. edge incurved, even, glabrous; g. adnate then decur.; s. cylindrical, equal; sp. 6-9 x 4-5. =buccinalis=, Sow. White. P. up to 1 cm. trumpet-shaped, plane or depr.; g. deeply decur. triangular; s. expanding into p.; sp. ----. [=hirsuta=, Q. (= _O. caricicola_, Lasch). Hyaline-white, soon flaccid. P. umbil. convex, very thin; gills or folds obliterated; s. capillary, short, pilose, base bulbillose; sp. rough, 9 long. =retosta=, Fr. P. 1-2 cm. plano-depr. umber, polished and pale when dry; g. distant, broad, narrowed at both ends, paler than p.; s. 2 cm. glabrous, paler than p.; sp. ----. Differs from _O. umbellifera_ in having gills narrowed behind. =abhorrens=, B. and Br. Foetid. P. 1-1.5 cm. umbil. brown then pale; g. narrow, pale; s. 2 cm. slender, apex thickened, colour of p.; sp. ----. =pseudoandrosacea=, Bull. P. convex, umbil. then infundib. plicate, edge crenulate, whitish or grey; g. deeply decur. segmentoid; s. slender; sp. 5-7 x 3-4. =griseo-pallida=, Desm. P. plane, umbil. even, glabrous, brownish grey then pale; g. broadest behind, grey; s. stuffed, fuscous, 1 cm.; sp. ----. Differs from _O. umbellifera_ and _O. rustica_ by p. not being striate when moist. =albidopallens=, Karst. P. convex, orbicular, scarcely umbil. pellucidly striate, naked, hyaline white or pallid; g. adnate, decur. crowded, pallid; s. equal, naked, pallid; sp. 4-5 x 3. [=schizoxylon=, Fr. P. thin, almost plane, umbil. glabrous, grey; g. narrow, paler than p.; s. rufous brown. [=bibula=, Q. P. umbil. when moist, silky, olive-yellow then grey; g. arcuate, broad, citrin; s. tinged citrin. Near to if not identical with _Hygr. Wynniae_. =stellata=, Fr. White. P. convex, umbil. diaphanous, striate; g. very distant, thin, broad; s. equal, base radiately floccose; sp. 4 x 6. II. MYCENARII. _P. at first campanulate, margin straight, adpressed to stem._ * _Gills broad, perfect, unequal._ =campanella=, Batsch. P. 1 cm. convex, umbil. striate, hygr. rusty yellow; g. connected by veins, arcuate, yellow; s. 2-3 cm. horny, bay, base narrowed, tawny-strigose; sp. 6-7 x 3-4. var. _badipus_, Cke. Base of s. slightly bulbous. var. _papillata_, Fr. P. acutely conical. var. _myriadea_, Kalchbr. Small, caespitose. [=incomis=, Karst. P. convex, umbil. glabrous or broken up into squamules, pale fuscous; g. adnato-decur. broad, white; s. tough, thinner below, colour of p.; sp. ----. [=psilocyboides=, Karst. P. convex, umbil. glabrous, tawny yellow; g. very broad, yellowish-white; s. 8-12 cm. equal, bay, white-fibrillose, apex paler and pruinose; sp. ----. [=brunneola=, Q. Chestnut umber. P. umbil. squamulose; g. arcuate, white; s. floccosely punctate, base with spreading fawn-coloured down; sp. 10.