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

Smith * Hesler

153

scurely inequilateral; pale brownish revived in KOH, paler in Melzer's
reagent; wall less than 0.25 p. thick.
Basidia 4-spored, 26-30 x 6-7.5 u/, clavate, hyaline in KOH, yellowish pallid in Melzer's reagent. Pleurocystidia abundant, 25-38 (46) X
6-11 (13) pu, clavate, mucronate to fusoid-ventricose, walls thin smooth
and hyaline, content showing a highly refractive amorphous inclusion as
revived in KOH, and merely yellowish in Melzer's reagent, or refractive
material in more or less of a strand. Cheilocystidia abundant, 30-45 X
4-6 x 5-9 /u, filamentous-subcapitate, to capitate, varying to obtusely
fusoid-ventricose, walls thin smooth and hyaline, content hyaline and
homogeneous. Caulocystidia rare, as clavate hyaline end-cells of cortex
hyphae projecting slightly and in width up to 16 p, thin-walled.
Gill trama a somewhat interwoven strand of floccose hyphae with
cells inflated to 12 pL or more and with "colloidal" content, bright red in
Melzer's reagent fading slowly to ochraceous; subhymenium a well-defined gelatinous layer of narrow hyaline hyphae. Pileus cutis a gelatinous
layer of hyphae 4-7.5 p/ broad, hyaline to yellowish, smooth to asperulate,
many with hyaline "granular" protoplasm as seen revived in KOH;
hypodermial region not sharply distinct from context, the hyphae of both
floccose and of inflated cells to 15 /u or more wide, yellowish smooth walls
in KOH and content reddish in Melzer's reagent when first mounted,
near the subhymenium the hyphal walls slightly thickened (appearing
layered). Clamp connections present.
HABIT, ABITAT, AND DISTRIBUTION: Subcaespitose on soil at Proud
Lake Recreation Area, Sept. 30, 1951, Oakland County, Mich. Smith
38863 type, and 21380.
OBSERVATIONS: The squamules over and around the disc are grayish
and the pileus soon develops darker coloration overall than in var.
hltescens.
75. Pholiota subochracea (Smith) comb. nov.
Hypholoma s7lbochraceum Smith, Mycologia 36: 250. 1944.
Naematoloma subochraceum (Smith) Smith, Mycologia 38: 502. 1946.
Illustrations: Text figs. 92-93; pls. 31, 32, 86b.
Pileus 2-4 cm broad, convex with an inrolled margin and becoming
broadly convex to plane, surface glabrous except for scattered fibrillose
flecks along the margin from the broken veil, glutinous when wet, under
a lens appearing somewhat appressed-fibrillose beneath the gluten, very
pale ochraceous tawny on the disc, pale yellow ("massicot-yellow") over
marginal area, when old more or less cinnamon-buff over all. Context
thin, firm, equal, yellowish, unchanging, odor none, taste mild.
Lamellae close, about 35 reach the stipe, 2-3 tiers of lamellulae,
equal, narrow to moderately broad, adnate becoming depressed-adnate,
pale yellow ("marguerite-yellow") when young, dingy cinnamon when
mature, edges even.