var. tephrocephalus, Fr. P. more compact, disc black then grey, edge white.
=Ruthae=, B. and Br. P. 3-7 cm. more or less fan-shaped, whitish or yellowish-buff, cuticle gelatinous, rather hispid; g. anastomosing behind, white then reddish, veined; s. 1-3 cm. reddish, hispid; sp. ----.
Differs from P. pantoleucus in g. anastomosing behind, and not decurrent.
=circinatus=, Fr. White. P. 5-7 cm. plane, orbicular, silky-pruinose; g. adnato-decur. crowded; s. 2-5 cm. equal, glabrous, rooting; sp. ----.
Gills phosphorescent.
var. carpini (= P. carpini, Fr.). P. convexo-exp. angular, rivulosely scaly when dry; s. slender, short, excentric or lateral; g. adnexed, thin, rusty.
*** Gills decurrent; stem almost vertical.
=sapidus=, Kalchbr. Caespitose. P. fleshy, deformed, centre depr. glabrous, pallid; g. decur. whitish; several stems springing from a common base; sp. 11-12 x 4.
More or less trumpet-shaped. Edible.
=pantoleucus=, Fr. White. P. 4-7 cm. even, glabrous, spathulate, depr. behind, marginate; g. crowded, distinct at base; s. 1-2 cm. ascending, glabrous, not rooting; sp. 11-12 x 4.
Differs from P. spodoleucus in pileus being white and depressed behind.
=mutilus=, Fr. White. P. 2-2.5 cm. fleshy, irreg. silky when dry; g. narrow, simple; s. 1-2 cm. long, terete, base downy; sp. ----.
Resembles Omph. scyphoides. Differs in nearly glabrous, irreg. p. not becoming infundib.
**** Veil absent; gills deeply decur.; pileus lateral, sessile or produced behind into a short stem-like base.
=ostreatus=, Jacq. Tufted. P. 7-15 cm. fleshy, shell-shaped, ascending, blackish then grey or pallid; g. rather distant, anastomosing behind, pallid; s. widening into p. very short, downy or strigose at base; sp. 10-12 x 4-5. Esculent.
var. euosmus, B. Smell strong. Gills and spores tinged pink.
var. columbinus, Q. P. dark bluish-grey.
var. nudipes, Boud. S. quite glabrous.
=revolutus=, Kickx. P. 9-15 cm. fleshy, firm, elastic, shining, depr. behind, smoky-yellow then grey, edge incurved; g. serrulate, white; s. 2-3 cm. short, thick, whitish; sp. ----.
var. anglicus. Edge of p. not or very slightly incurved; g. pallid ochraceous.
=salignus=, Pers. P. 4-9 cm. fleshy, spongy, becoming depr. behind and strigose, horizontal, yellow brown or dusky; g. somewhat branched, edge eroded, dingy; s. short, firm, tomentose; sp. 8-11 x 3-4.
=acerinus=, Fr. White. P. 3-8 cm. tough, circular, silky-villose; g. closely crowded, white then yellowish; s. subobsolete, downy; sp. ----.
B. DIMIDIATI. P. definitely lateral, without a free margin behind; not resupinate at first.
=petaloides=, Bull. P. 2-5 cm. thin, ascending, spathulate, entire, disc depr. brownish then pale; g. crowded, narrow, whitish; s. short, compressed, downy; sp. 9-10 x 4.
P. porrigens differs in being white and stemless.
=pulmonarius=, Fr. P. 4-5 cm. obovate or reniform, rather convex, glabrous, greyish or tan; g. plano-decur. simple, albo-livid; s. round, very short, downy; sp. ----.
Differs from P. serotinus in very short s., and glabrous p.
var. juglandis, Fr. Gregarious; g. greyish brown.
European Fungus Flora: Agaricaceae · The Wunder Library — complete classics, free to read, with narration.