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

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The North American Species of Pholiota

incrusting debris; subhymenium of somewhat diverging narrow more or
less gelatinous hyphae hyaline in KOH. Pileus cutis a thin gelatinous
pellicle of incrusted to smooth hyphae 2-6 /. diam., yellow in KOH;
hypodermium of inflated orange-fulvous hyphae (in KOH) many with
incrustations on walls. Context hyphae yellow in KOH, floccose, thinwalled, hyphal cells inflated to 15 /u or more. Clamp connections present.
HABIT, HABITAT, AND DISTRIBUTION: Subcaespitose in sphagnum,
Michigan, August; Smith 72040, type.
OBSERVATIONS: This species reminds one of subgenus Flammula
but has prominent pleurocystidia. Actually, in mounts revived in KOH
the pleurocystidia are seen to be of two types, those with a colored content of amorphous material not arranged in any particular pattern, and
those that are hyaline and homogeneous. The dried specimens are bright
yellow, but the spores are not dextrinoid.
Stirps Graveolens
159. Pholiota graveolens (Pk.) comb. nov.
Flammula graveolens Peck, New York State Mus. Bull. 150: 54. 1911.
Gymnopilus graveolens (Pk.) Murrill, North Amer. Fl. 10: 199. 1917.
Illustrations: P1. 74.
Pileus often caespitose, 2.5-7 cm broad, obtuse to broadly convex or
nearly plane with a low umbo, sometimes slightly depressed at the center,
reddish brown or yellowish brown over disc, olive-yellow or paler on the
margin, viscid, glabrous, at times very obscurely innately fibrillose, pellicle subseparable. Context pale yellow, in age olivaceous; odor strong at
times like that of Cortinarius percomis (earthly), taste none.
Lamellae adnate or slightly decurrent, pale yellow, becoming subferruginous, close or moderately so, medium broad to broad, thin, obscurely white-fimbriate, at times spotted rusty where bruised.
Stipe (3) 5-8 (9) cm long, (4) 5-10 mm thick, pale yellow within
and without, becoming dark brown at the base, silky-fibrillose, equal or
tapering at the base, solid or with a very narrow cavity. Veil pale yellow,
floccose or webby, visible in young basidiocarps, evanescent.
Spores (6) 7-9 X (3.5) 4-5,u, smooth, apical pore minute, shape in
face view oblong to elliptic, in profile somewhat bean-shaped to elliptic
or oblong; color in KOH rusty cinnamon, pale and more yellowish in
Melzer's reagent; wall about 0.25-0.3 pj thick.
Basidia 23-27 x 5.5-7 /x, 4-spored, clavate, yellowish in KOH and
Melzer's reagent. Pleurocystidia 48-70 x 8-15 /, fusoid-ventricose with
obtuse apex, walls thin, typically smooth, content as revived in KOH
orange-red to orange-brown in the neck and sometimes the ventricose
part, in Melzer's the content paler even to ochraceous, in one collection
(considered authentic by Murrill) it surrounded the neck as a congealed
orange-brown mass in KOH. Cheilocystidia (30) 40-60 (67) x 8-14 /,