Basidiomata gregarious, flabelliform, spathulate, ligulate when young to subdimidiate when mature, convex to subconchate, sessile to pendent (i.e. not everted-curled like L. cochleatus). Pileus 7-32 mm broad, up to 24 mm deep, subundulate to delicately radially rivulose, "Rood's brown" to "pecan brown" (6C5-6135), russet to (where poorly dried) brown-black, "orange buff' to "capucine buff' (5A5-6) or duller (5B5-7), with spots of "buckthorn brown" (5136), surface smooth outward, minutely pubescent to minutely micaceous at disc, more hirsute or hoary at stipe attachment; hoary ornamentation yellow, drying pallid gray; margin translucent-striate, decurved, fimbriate to crenulate but not striate, darker than pileus, as though hygrophanous (5B5); flesh thin (less than 1 mm thick). Lamellae adnate, subdecurrent, subdistant, up to 3.5 mm deep, in at least three ranks, "pale cinnamon pink" (5A2-3) to "cinnamon buff' when fresh, drying to "tilleul buff'.to (poorly dried) dark brown (5135, 6C4); margin coarsely digitate-serrate, reported as minutely white. Stipe lateral to absent, 2-10 X 2-4 mm, prominent, reduced to a knot or absent, more or less equal (when present), irregular in cross-section (i.e. not terete, fluted by lamellar ridges), near "buckthorn brown" (5137), dark brown, "drab," to "light drab," strigose, plushy to covered with hyphal spikes. Odor very weak, typical; taste very slowly weakly acrid, mildly anesthetic to tip of tongue.

Pileipellis a repent, radial, coherent layer of generative hyphae involved in mucus; hyphae 2.0-7.0 µm diam, hyaline to yellowish brown (BF, KOH), thin-walled, clamped; mucus epi- and interhyphal, discharged in globules in squash mounts (PhC, KOH), amorphous, not granular. Suprapellis outward undeveloped but lanceolate pileicystidia emergent from generative hyphae; pileicystidia (Fig. 24) 55-92 X 6.7-13.0 µm, ranging from elongate-ellipsoid with bluntly rounded apex to fusoid with prolonged beak, to fusiform-lanceolate, gradually tapered to bluntly lanceolate tip, hyaline, sometimes biaxial, thin-walled, inamyloid; inward pileicystidia gloeoplerous, 150-340 X 6.5-17.0 µm, narrowly vermiform to nematoform, tapering to narrow apex, undulate to irregularly swollen, thick-walled (wall up to 1.8 µm thick), yellow-refringent (PhC, KOH), inamyloid; contents glassy to finely coscinoidal; pileileptocystidia numerous, 2.0-3.0 µm diam, hyaline, filamentous, rounded at apex, twisted to delicately undulate, emergent up to 45 µm. Subpellis of outer pileus dimitic: 1) generative hyphae 3.0-6.0 µm diam, hyaline, thin-walled, clamped; and 2) gloeoplerous hyphae abundant, sinuous, yellow-refringent (PhC, KOH); contents cosdinoidal; subpellis of inner pileus dimitic: 1) generative hyphae undulate, thick-walled (wall up to 0.7 µm thick), hyaline, clamped; and 2) gloeoplerous hyphae occasional, as in outer subpellis.

Pileus trama interwoven, dimitic: 1) generative hyphae 2.0-7.5 µm diam, hyaline, thick-walled (wall up to 1.3 µm thick, commonly occluding cell lumen), glassy-refringent over short lengths, long-celled, branched, inamyloid to weakly amyloid (pale blue-gray), conspicuously and frequently clamped, occasionally ornamented with minute warts on exterior surface and then appearing minutely banded; and 2) gloeoplerous hyphae common (not abundant) near surface, less so inward, 3.5-7.0(-14.0) µm diam, yellow-refringent (PhC, KOH), thin-walled, emergent up to 15 µm; and 4) leptocystidia (Fig. 25c) filamentous, 1.8-3.0 µm diam, yellow-refringent (PhC, KOH), emergent up to 15 µm; contents coscinoidal.

Basidiospores (Fig. 25d) 4.0-5.7 X (3.5-)4.0-4.5 µm (E = 1.08-1.33; Em = 1.20; Lm = 4.85 gym), ovate to broadly ovate to subglobose, thin-walled, weakly to moderately amyloid; ornamentation of densely scattered, strongly amyloid prickles barely visible at 1500X;contents homogeneous to uniguttulate.