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

Smith ~ Hesler

227

walls thin, smooth and nearly hyaline, in Melzer's reagent the cell content
red to orange-red or more ochraceous. Clamp connections present.
HABIT, HABITAT, AND DISTRIBUTION: On wood and woody debris,
Europe, Summer-Fall.
OBSERVATIONS: This species is characterized by the drop-like appressed scales on the pileus, the stipe fibrillose-squamulose below the
evanescent ring, and bitter taste. Its spores are distinctly larger than in
P. flammans. We have not, as yet, seen any North American collections
of P. lucifera. The Melzer's reactions remind one of those obtained from
some collections of Macowanites americanus. They are most unusual in
Pholiota. The impression one receives from the dried basidiocarps is
that they are conspecific with P. muiltifolia, but this is not substantiated
by the microscopic features. The iodine reaction of the context hyphae
reminds of P. limonella but the larger spores and bitter taste distinguish
it immediately. It is the only species we have encountered in which at
least some of the cells of the context hyphae have a refractive inclusion
resembling that of chrysocystidia.
MATERIAL EXAMINED: FRANCE: Josserand, from near Lyon, November 14, 1932 (MICH); SWEDEN: Lundell, August 27, 1946.
117. Pholiota angustipes (Pk.) Saccardo, Syll. Fung. 5: 740. 1887.
Agaricus (Pholiota) angustipes Peck, New York State Mus. Ann. Rept.
30: 40. 1878.
Hypodendrum angustipes (Pk.) Overholts, North Amer. Fl. 10: 280. 1932.
Illustrations: Harper, Wisc. Acad. Sci. Arts & Letters 17, p. 34. Text figs.
251-253.
Pileus 2-8 cm broad, hemispheric then convex or nearly plane, at
first brown, then fading to ochraceous brown or subalutaceous, drying to
tawny, squamulose with minute dotlike appressed scales, only slightly
viscid when wet. Context fleshy thin, yellowish or whitish; taste unpleasant.
Lamellae adnate, sinuate-adnate or subdecurrent, whitish or dull
cream-color, becoming tawny or cinnamon-buff, in dried basidiocarps
cinnamon, close, narrowed outward, medium broad at stipe.
Stipe 3-7.5 cm long, 4-10 mm thick, white to grayish or avellaneous,
slightly squamulose, the scales darker or fibrillose, equal or tapering
downward, stuffed or hollow. Veil fibrillose, buff whitish, forming an
evanescent annulus.
Spores 6-7.5 X 4-4.5 u/, smooth, germ pore at apex distinct; shape
in face view elliptic, in profile subelliptic to obscurely bean-shaped;
color in KOH ochraceous to pale clay color, in Melzer's reagent paler
ochraceous; wall thin (-0.25 /x).
Basidia 4-spored, 18-24 x 5-6 t/, clavate, hyaline in KOH and
nearly so in Melzer's reagent. Pleurocystidia scattered 16-30 x 5-8,x,
fusoid to clavate or filamentous, content in some golden yellow in KOH