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

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The North American Species of Pholiota

form, apex broadly rounded, wall thin smooth and hyaline; content
homogeneous ochraceous in KOH and slowly bleaching. Cheilocystidia
similar to pleurocystidia or more obese. Gill trama typical of P. lubrica
group. Pileus cutis a thick pellicle of interwoven narrow (2-3 /u) hyaline
to yellowish hyphae with minutely asperulate walls; hypodermial zone
of orange-rusty incrusted broader hyphae and context hyphae 6-15 /u -
broad, smooth, thin-walled and nearly hyaline. Clamp connections present. All hyphae inamyloid.
HABIT, HABITAT, AND DISTRIBUTION: On humus under spruce, Tolland, Colorado. 9500 ft. Sept. 12, 1910. C. H. Kauffman, type.
OBSERVATIONS: This species was identified by Kauffman as Flammlnla
lubrica but the broadly rounded pleurocystidia do not check with European material. It is close to P. tetonensis in cystidial features. The colors
approach those shown for Agaricus (Flammula) lubricus in Fries' Icones.
178. Pholiota sublubrica sp. nov.
Illustrations: Text figs. 396-398; pl. 85.
Pilenls 4-10(15) cm latus, con7vexo-umbonatus a lrantio-fzl vus denmur
palli(hd fi thls1., ad marginrem appendicullatlts, viscidlis. Contextits alb.is.
Lame7llae ad(natae latae, conifertae dc(mumt fll0vomactdlatae. Stipe — 10 cm
longtus, 10-15 mm crassits, aequalis, solidits, slibalbidiis; deorsltm squamrn (losIts, demrtmn fulvus. Sporae 5.5-7 x 3.2-4 L. Pleurocystidia 45-83 x 9 -16 /u, pallide Iltea, tenuti-ttnicata. Cheilocystidia 32-50 x 8-12(8) tU,
futsoide ventricosa vel snbclavata. Specimenl typic ilti in Herb. Univ. Mich.
conservatlln est; legit prope Stanley, Idaho, 19 Aug. 1954. Smith -16383.
Pileus 4-10(15) cm broad, obtuse when young, expanding to obtusely umbonate, disc ochraceous tawny to ochraceous orange, margin
pale pinkish buff to more yellowish, with brownish veil remnants in
zones or patches along the margin, surface in old caps somewhat watery
spotted, viscid, margin even. Context white, no color change on bruising;
odor or taste not distinctive.
Lamellae bluntly adnate, often with a (lecurrent tooth, dull rusty
brown at maturity, occasionally rusty-spotted in age, moderately broad,
close, pallid when young.
Stipe 4-10 cm long, 10-15 mm thick, equal, solid, fibrous-tough,
whitish but base soon rusty brown and color change progressing upward,
in age brown over all, apex silky, with a superior fibrillose zone or
annulus, below this ragged-fibrillose to squamulose from the pallid veil
remnants.
Spores 5.5-7 x 3.2-4,u, smooth ochraceous tawny in KOH, merely
yellowisl in Melzer's reagent, apical pore minute; shape in face view
oblong to slightly ovate, in profile obscurely to distinctly bean-shaped;
wall thin (~ 0.35,u).
Basidia 17-20 (24) x 4-5 (6) /,, 4-spored, clavate (hymenium bright
yellow in KOH, duller yellow in Melzer's reagent). Pleurocystidia abun