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

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The North American Species of Pholiota

Lamellae broad and ventricose, close, pale yellow becoming dull
ochraceous tawny, adnate to adnexed.
Stipe 1-2 cm long, 2-3.5 mm thick, equal, solid, bright yellow within,
surface at first with yellowish squamules up to the yellow fibrillose zone,
silky and yellow above, becoming brownish to reddish at base.
Spores 6.5-8 X 5-6.5 x 4-5,/, smooth, apex with a distinct pore
and obscurely truncate in many spores, shape in face view more or less
ovate, in profile more or less elliptic; color in KOH russet, paler in
Melzer's reagent. Other characters as in the type form.
HABIT, HABITAT, AND DISTRIBUTION: Gregarious along a road in woods,
Granite Creek, Nordman, Idaho, Oct. 8, 1956. Smith 54284, type.
OBSERVATIONS: The distinguishing features of this variety are the
short relatively thick stipe for its length, the color change when the flesh
is cut, and the generally more yellow coloration than in the type variety.
161. Pholiota calvini sp. nov.
Pilelts 10-25 mm latus, viscidus, cinnamomets, ad marginem fulvo
squamnulosus; lamellae pallidae dernim ftlvae, latae, confertae, adnatae;
stipes 15-25 mm longus, 1-1.5 mm crassus, fibrillosts; sporae 6.5-8 x
4-4.5 /J; pleurocystidia 50-70 X 9-15 t,; subhymenium gelatinosum. Specimen typicum in Herb. Univ. Mich. conservaturm est; legit prope Mt.
Gretna, Penna. 15 Sept. 1924. C. H. Kauffman.
Pileus 10-25 mm broad, obtuse expanding to broadly convex or
plane, at times with an obtuse umbo, viscid, "cinnamon" with appressed
small darker ("russet") scales decorating the marginal area; context
thin and pallid, odor and taste not distinctive.
Lamellae rather broad, broadly adnate, close to subdistant, pallid
becoming dull tawny, edges entire.
Stipe 15-25 mm long, 1-1.5 mm thick, equal, straight or curved, at
first peronate by a thin tawny fibrillosity terminating in an evanescent
thin fibrillose ring.
Spores 6.5-8 x 4-4.5,/ smooth, apical pore hardly visible; shape in
face view narrowly ovate to elliptic or oblong, in profile obscurely beanshaped to obscurely inequilateral; color in KOH pale to medium dull
cinnamon, in Melzer's reagent not much change (paler at first); wall
about 0.25 / thick.
Basidia 4-spored, 17-22 x 6-7.5 /,t clavate, yellow to hyaline in KOH.
Pleurocystidia abundant, 50-70 x 9-15 /A, fusoid-ventricose, obtuse at
apex, smooth or some debris adhering, content hyaline to yellow or
orange-ochraceous revived in KOH, (hyaline fresh), walls thin. Cheilocystidia similar to pleurocystidia but small and with more orange content
and more adhering debris.
Gill trama with a central area of non-gelatinous smooth, thin-walled
parallel (+) hyphae with inflated cells and a gelatinous subhymenium
of narrow (2-4 /u) hyphae hyaline in KOH. Pileus cutis of appressed