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

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The North American Species of Pholiota

Jemez Mountains near Santa Fe, New Mexico, August 1964, Chas. Barrows 1739, type.
OBSERVATIONS: This is a most interesting species identical in aspect
with P. squarrosa as it occurs in New Mexico but lacking olive or green
tones, lacking a garlic odor, and in having narrower spores than P. squarrosoides. Barrows considers it far superior to P. squarrosa as an edible
species. No heliotrope stains were noted anywhere on the basidiocarps,
it lacked a fruity odor and occured on conifer wood. Hence with the data
available it cannot be properly referred to Dryophila ochropallida Romagnesi. However, we take pleasure in naming our species in his honor.
104. Pholiota angustifolia nom. nov.
Hebeloma appendiculatum Murrill, North Amer. Fl. 10: 220. 1917.
(non. Pholiota appendiculata Peck 1905).
Illustrations: Text figs. 208-210.
Pileus about 5 cm broad, convex, rather thick and fleshy and not
fully expanding, slightly gibbous in some, surface viscid, silky and also
finely imbricate-squamulose, rosy-isabelline (pinkish-cinnamon), cremeous on the disc, margin deflexed, concolorous, appendiculate with triangular fragments of the slight evanescent veil. Context white, thick at
the center; taste nutty.
Lamellae sinuate, broad behind and tapering in front, narrow,
arcuate, very crowded, pale cream-color and not darkening on drying,
the edges pallid and distinctly crenate or dentate.
Stipe more or less 4 cm long, 1 cm thick, equal, spongy-stuffed, with
creamy white pith, glabrous at apex, white above, concolorous below,
revolute-squamulose.
Spores 5-6.5 (7) x 3.3-4 (4.5) /,, smooth, apical pore distinct but
minute and apex not truncate, shape in face view ovate to elliptic or
nearly oblong, in profile slightly bean-shaped to somewhat inequilateral;
color revived in KOH ochraceous to cinnamon-buff, in Melzer's reagent
about the same color; wall thin (-0.25 ix).
Basidia 15-20 (22) x 4.5-6 /A, 4-spored, obese, hyaline to yellowish
in KOH and Melzer's reagent. Pleurocystidia numerous 20-28 x 6-12 /i,
clavate-mucronate to fusoid-ventricose, apex obtuse, wall thin, smooth
and hyaline; content refractive and reticulate or contracted into a more
or less distinct refractive body, hyaline in KOH and merely yellowish in
Melzer's reagent. Cheilocystidia (17) 25-40 (50) x 7-10 (15) /L, cylindriccapitate, ninepin-shaped, fusoid ventricose to utriform, smooth, thinwalled; content homogeneous and hyaline in KOH. Caulocystidia none.
Gill trama with central area of floccose subparallel hyphae hyaline
to pale fulvous in KOH in sections, walls thin and smooth, cells 4-9 /,
broad; subhymenium a distinct gelatinous zone. Pileus cutis a thin layer
of hyaline subgelatinous hypha 3-5 ui diam. over the surface but no well
organized typical gelatinous pellicle found; hypodermial region lacking