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

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The North American Species of Pholiota

to 15 ut or more, thin-walled and smooth. All hyphae inamyloid. Clamp
connections present.
HABIT, HABITAT, AND DISTRIBUTION: Gregarious to scattered on or
around rotten conifer logs. July and August, Idaho, Smith 58633, type.
OBSERVATIONS: This species is characterized by the vinaceous brown
pileus, truly thick-walled pleurocystidia, whitish gills at first (but they
soon become yellow) and fragrant odor. P. vinaceobrunnea has much
longer pleurocystidia, lacks a fragrant odor and has well-developed
whitish veil. We found caulocystidia on the stipe of P. humii but not on
P. vinaceobrunnea but the comparison was made from dried specimens
and we have some reservations concerning it.
MATERIAL EXAMINED: IDAHO Smith 38633, 73893, 59054, 60696.
133. Pholiota vinaceobrunnea sp. nov.
Illustrations: P1. 61.
Pileus 2-5.5 cm latus, umbonatus, subviscidus ad marginem fibrilloso-squlamlosus, glabrescens, sordide vinaceo-bru1nneus. Lamnellae albidae
demume ligno-brunneae, adnatac, angustae, confertae. Stipes 3-7 cm
longus, -1-8 mm crassus, aequalis, solidus, sursum pallidus, deorsum
vinaceo-brunneus, fibrillosus, sursnum fibrilloso-zonatatus. Sporae 5.5-7 X
4-5 pt. Pleurocystidia 60-115 x 10-17 pt, crassotunicata. Specimen typicum
in Herb. Univ. Mich. conservatum est; legit prope McCall, Idaho. 6 Aug.
1964. Paul Miller (Smith 68927).
Pileus 2-5.5 cm broad, obtusely umbonate expanding to plane or
with a slight umbo, thinly viscid fresh but soon dry; color dark dull
vinaceous-brown ("warm-sepia" to "Verona-brown") over the disc, dingy
pale pinkish buff over marginal area but dingy tawny in between, at first
decorated with 1-2 zones of veil fibrils or the fibrils occurring in scattered
patches, glabrous in age or merely obscurely spotted. Context thin, fleshycartilaginous, with FeSO4 bluish olive, taste mild, odor none.
Lamellae whitish becoming wood-brown and finally dull pale cinnamon-brown, adnate, narrow, close, not becoming spotted, edges even.
Stipe 3-7 cm long, 4-8 mm thick, equal, solid, surface pallid above,
soon more or less "Verona-brown" (dingy vinaceous-brown) at base,
fibrillose from the thin pallid cortinate veil, rarely with a persistent zone
of veil elements near apex.
Spore deposit cinnamon-brown; spores 5.5-7 x 4-5 pu, smooth, apical
pore not evident, shape in face view subovate to elliptic, somewhat beanshaped; color ochraceous tawny in KOH, pale tawny brown in Melzer's
reagent.
Basidia 4-spored, 17-22 x 5-6 At, yellowish in KOH, slightly more
so in Melzer's. Pleurocystidia abundant 60-115 X 10-17 At, fusoid-ventricose, apex obtuse or sometimes abruptly tapered to a spicule of a point,
thick-walled (at least in the ventricose portion, 2-3 pt thick), arising deep
in the subhymenium, content in neck portion often coagulated and dingy