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

Smith * Hesler

283

Pileus 1-3 cm latus, late convexus, demum planus vel subdepressus,
glutinosus, glaber, subbadius. Contextus cartilagineus, brunneolus; odor
nullus, sapor subsaponaceo-farinaceus, cum FeSO4 olivaceo. Lamellae
albae demum cinnamomeae, confertae, latae, adnatae. Stipes 1.5-3 cm
longus, 3-6 mm crassus, equalis, cavus, dersum demum fulvus, sursum
albus ct pruinosus. Vellum sordide pallide cinnamomeum. Sporae 6-7.5
x 3.5-4.2 pJ. Pleurocystidia 54-70 x 9-14 p, fusoide ventricosa. Specimen
typicum in Herb. Mich. conservatum est., legit prope Upper Priest Lake,
Boundary Co., Idaho, 11 Oct. 1966. Smith 74095.
Pileus 1-3 cm broad, broadly convex with an inrolled margin, expanding to plane or slightly depressed, surface glutinous, glabrous, bay
brown (pale to dark). Context pliant, watery brownish, odor none; taste
very disagreeable (somewhat soapy farinaceous), with FeSO4 olivaceus.
Lamellae whitish becoming dull cinnamon, close to crowded, moderately broad, thin, adnate becoming adnexed; edges even, pallid.
Stipe 1.5-3 cm long, 3-6 mm thick, equal, hollow, soon rusty over
the base (but not witllin), coated up to the apical veil zone with a dull
cinnamon sheath which breaks up into patches, apex whitish and
pruinose.
Spores 6-7.5 x 3.5-4.2 JL, minute pore present at apex; shape in face
view elliptic to slightly ovate, some nearly oblong, in profile elliptic to
obscurely inequilateral; dull cinnamon brown in both KOH and Melzer's
sol.; wall about 0.25 pt thick.
Basidia 4-spored, 20-36 X 5-6 (7) pu, narrowly clavate, hyaline in
KOH. Pleurocystidia abundant, 54-70 X 9-14 p., fusoid-ventricose with
long narrow pedicels, content hyaline to yellowish in KOH, coagulated
content not distinctively colored, walls thin and hyaline. Cheilocystidia
26-38 x 8-12 pu, mostly fusoid-ventricose with obtuse apex, content
colloidal but not distinctively colored in KOH or Melzer's, walls thin and
hyaline. Caulocystidia 55-70 x 9-12 pu scattered, hyaline, thin-walled,
smootl, apex obtuse to slightly rounded.
Gill trama, an area of hyaline thin walled narrow parallel hyphae
witl some oleiferous hyphae scattered through it; subhymenium a gelatinous layer of narrow hyphae 2-4 pu diam. Pileus cutis a thick layer of
widely spaced narrow (2-3 pj) hyphae with yellow slightly incrusted
walls as revived in KOH (possibly a trichodermium in very young material); area next to hypodermium of narrow non-gelatinous hypliae
with rather coarse incrustations; hypodermium proper of closely packed
orange-brown (in KOH) incrusted hyphae with some cells up to 12 y/
or more in diam. Context yellow to hyaline in KOH, closely arranged and
with thin smooth walls. Clamp connections present.
HABIT, HABITAT, AND DISTRIBUTION: Gregarious on burned areas,
Upper Priest Lake region, Boundary County, Idaho. 11 Oct. 1966. Smith
74095, type.
OBSERVATIONS: The very disagreeable persistent taste along with the