=praecox=, Pers. P. 3-7 cm. soft, exp. obtuse, even, pallid tan; g. crowded, white then fuscescent; s. 4-9 cm. cylindrical, downy then glabrous, ring white; sp. 8-13 x 6-7. var. _minor_, Fr. Small; ring torn, appendiculate. [=phragmatophylla=, Guern. P. convex, depr. round broad umbo, maroon-bay then paler; g. narrow, adnato-decur. connected by numerous veins; s. tinged brown, squamulose, ring persistent, whitish. =sphaleromorpha=, Bull. P. 4-7 cm. yellowish, even, soon expanded; g. rather broad, slightly decur. dry, yellowish then tawny; s. 5-8 cm. silky, pale, base thickened, ring distant, membranous; sp. 10 x 7. [=gibberosa=, Fr. P. exp. dry, tan, umbo darker; g. quite free, closely crowded; s. slender, equal, white, ring torn. B. TRUNCIGENI. _Growing on wood, or epiphytic; often clustered._ * _Pileus naked, not scaly but usually rivulose; gills pallid then rufous or fuscous._ =radicosa=, Bull. Smell strong. P. 4-9 cm. equal, obtuse, even, glabrous, spotted, pale greyish tan; g. free, ventricose; s. 8-14 cm. solid, rooting, mealy above, squarrosely scaly below ring; sp. 9 x 4.5. =pudica=, Fr. P. 3-7 cm. exp. even, dry, glabrous, whitish or tinged tawny; s. 3-5 cm. solid, even, whitish, ring spreading, persistent; sp. 6-7 x 3.5. =leochroma=, Cke. P. 3-6 cm. exp. glabrous, tawny; g. adnate; s. 6-9 cm. nearly equal, solid, whitish, ring sup. tawny; sp. ----. [=radicellata=, Gill. P. ovoid then convex, striate, deep yellow-ochre; g. numerous, slightly adnexed, colour of p.; s. white, ring fugacious, long rooting. =capistrata=, Cke. P. 3-5 cm. edge incurved, slightly striate, pale dingy yellow, rather viscid; g. subdecur.; s. 6-9 cm. equal, squamulose, whitish, ring sup. spreading; sp. ----. [=cylindracea=, D. C. P. convex-gibbous, even, glabrous, rather viscid, dingy yellow, disc darker; g. adnexed, crowded, whitish then rusty; s. equal, rigid, subsquamulose, whitish, ring persistent apical, white; sp. 8 x 5. =aegerita=, Fr. P. 4-9 cm. exp. rivulose, rugulose, tawny, edge pale; g. adnate, pallid then fuscous; s. 8-14 cm. equal, silky-white, ring sup. tumid; sp. 10 x 5. [=Brigantii=, Fr. P. convex, white, reticulately sulcate then cracked into wart-like areolae, polygonal, apex truncate and fuscous; g. with decur. tooth; s. solid, equal, white with bay scales, ring apical subobsolete. =luxurians=, Fr. P. 3-5 cm. convex-gibbous then exp. unequal, silky then squamulose, pale then rufo-fuscous; g. decur. greyish flesh-colour then fuscous; s. 3-5 cm. white then tawny, solid, rigid, floccose, ring apical, imperfect; sp. 10 x 4. ** _Pileus scaly, not hygr., gills becoming discoloured._ + _Gills pallid then fuscous, olive, clay-coloured, not pure rusty._ =destruens=, Brig. P. unequal, yellowish white, with paler large woolly floccose scales when dry; g. striato-decur. crenulate, broad, umber at last; s. solid, narrowed upwards, white-scaly, base swollen and rooting, ring fugacious; sp. 8-9 x 5-6.