The North American species of Pholiota, by Alexander H. Smith and L. R. Hesler.

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The North American Species of Pholiota

are unusual in the genus. It is close to P. bridgii but has a gelatinous
pileus cutis and smaller cells in the trama of the hymenophore.
52. Pholiota conica sp. nov.
Illustrations: P1. 18b.
Pileus 1-2.5(3) cm latus, acute conicus deinde conico-campanulatus,
margin fibrillosus, siccus, "ochraceous-tawny" demum "buckthorn-brown,"
denique "warm-buff." Caro coriacea deinde pallida; odore et gustu mitis.
Lamellae adnatae, pallido-brunneae, deinde obscure brunneae, confertae,
angustae. Stipes 4-9 cm longus, 3-6 mm crassus, supra coriaceus, infra
brunneus, denique passim rubido-brunneus, leviter fibrillosus. Sporae
5.5-7 x 3.5-4 x 4-4.5 i/, ellipsoideae demum ovoideae, leves, truncatae.
Pleurocystidia desunt; cheilocystidia (25)30-30 x 6-9 p/, cylindrica demum ventricosa. Cuticula ex hyphis brunnaceis repentibus composita.
Caulocystidia desunt. Specimen typicum in Herb. Univ. Mich.; lectum
prope Priest Lake, Idaho, 7 Juli, 1964, Smith 68254.
Pileus 1-2.5 (3) cm broad, sharply conic young, becoming coniccampanulate, margin fringed with fibrils at first and usually scarcely
translucent striate, surface dry or subviscid to touch, ochraceous tawny
to "buckthorn-brown" fading to "warm-buff." Context butterscotch-color,
becoming pallid; taste mild, odor none. FeSO4 and KOH no reaction.
Lamellae adnate, pallid brownish becoming concolorous with moist
cap, crowded, narrow, thin, edges even.
Stipe 4-9 cm long, 3-6 mm thick, equal, fragile, darker rusty brown
below, butterscotch near apex, finally reddish brown over all, very faintly
fibrillose from remains of a thin veil.
Spores 5.5-7 x 3.5-4 x 4-4.5 /x, ovate to elliptic or rarely oblong in
face view, in profile subelliptic to obscurely inequilateral, smooth, wall
thickened to about 0.3 /x, tawny in KOH and a little more cinnamon in
Melzer's reagent, apex slightly truncated from an apical pore.
Basidia 22-27 x 5-7 /A, 4-spored, clavate, hyaline in KOH, yellowish
in Melzer's reagent. Pleurocystidia none. Cheilocystidia (25) 30-50 X
6-9 ix: 1) Subcylindric with obtuse to subcapitate apex and wall of shank
flexuous, a few with one or more knoblike protuberances; 2) base somewhat ventricose and with a flexuous neck and obtuse apex; or 3) narrowly clavate, often rather irregular in outline; all types hyaline, thinwalled, with homogeneous content colorless in KOH, and most with a
clamp at the septum. Caulocystidia present over apical region as scattered
ends of tubular hyphae 3-5 /, diam.
Gill trama of inflated hyphae (9-18,/) somewhat interwoven with
cinnamon smooth, non-gelatinous walls as revived in KOH, hyphae near
subhymenium narrower and more highly colored; subhymenium indistinct, not a gelatinous layer. Pileus epicutis a thin gelatinous layer of
narrow (2.5-4 /,) hyaline thin-walled tubular hyphae; hypodermial