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

Smith * Hesler

161

Pileus caespitose, 3 cm broad, convex to nearly plane, gibbous or
umbonate, slightly viscid when wet, fibrillose, flavo-melleous tinged with
pale rose-brown, the latter color more conspicuous at the center.
Lamellae adnate, pallid when young, becoming pale-fulvous from
the spores, plane, broad, of medium distance.
Stipe 5 cm long, 4 mm thick, smooth, glabrous and cremeous at the
apex, subconcolorous and shaggy-fibrillose below.
Spores 5.5-7.5 x 3.5-4.5 FL, smooth, apical pore present and at times
apex appearing slightly truncate, shape in face view elliptic to ovate, in
profile obscurely inequilateral, pale tawny in KOH and only slightly paler
in Melzer's reagent, walls 0.25 thick.
Basidia 18-22 x 5-6,L, 4-spored, hyaline in KOH, yellowish in
Melzer's reagent. Pleurocystidia present as imbedded chrysocystidia 18 -25 x 6-10 aF, often 5-6 F, at basal septum, wall hyaline thin and smooth,
content varying from a local area of granular-refractive material to the
amorphous refractive mass characteristic of chrysocystidia and the inclusion merely yellowish in Melzer's reagent. Cheilocystidia 24-32 x 6-10 F,
subclavate to subcylindric or fusoid-ventricose. Gill trama a central
floccose strand of hyaline hyphae 3-9 pu broad with thin, smooth walls;
subhymenium gelatinous, structure not distinct but apparently divergentinterwoven. Pileus cutis a gelatinous pellicle. No other data on type
reliable.
HABIT, HABITAT, AND DISTRIBUTION: On soil, roadside, California,
November. Type studied.
OBSERVATIONS: This species is near P. melliodora, in which the pileus
margin remains incurved for a long time, but the cheilocystidia are
longer and more slender, the subhymenium more distinctly gelatinous,
and the gills are crowded and at first yellow. The odor in P. ornatula is
not recorded.
81. Pholiota melliodora sp. nov.
Illustrations: Text figs. 110-112.
Pileus 1-8 cm latus, convexus, melleus, viscidus, virgatus. Caro fragilis, mollis, lutea, odor fragrans. Lamellae adnatae, confertae, latissimae,
luteae. Stipes 4-7 cm longus, 3-7 mm crassus, flexuosus, fibrillosus, luteus,
deorsum subfulvus. Sporae 5.5-7.5 x 3.5-4 ui. Pleurocystidia 28-37 x 9 -12 ji, ovata veil elliptico-pedicellata, ochracea. Caulocystidia 24-48 X 3-7
iu. Specimen typicum in Univ. Mich. Herb. conservatum est.; legit prope
Portland, Ore., 2 Nov. 1957, R. Oswald.
Pileus 1-8 cm broad, convex, near honey-yellow, viscid, fibrillose, at
first the margin appressed to stipe, finally expanding. Context brittle,
soft, thick on disc, yellow; odor like honey.
Lamellae adnate, notched near stipe, yellow, up to 13 mm broad at
broadest point, crowded, edges eroded.