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

Smith ~ Hesler

177

as regards viscidity that applies to P. flammans and P. alnicola also applies here. The cuticle has all the features of one which becomes a gelatinous pellicle in wet weather.
For the time being at least we recognize both P. malicola var. macropoda and P. oregonensis. Both fruit in large clusters and both tend to
have greatly enlarged stipes. In P. malicola var. macropoda the substrate
is conifer wood whereas in P. oregonensis it is willow. This may not be
significant taxonomically. P. oregonensis has distant gills and a scaly stipe
with the scales pointing upward. We have not seen this in P. malicola var. macropoda. In the latter the pileus colors are apparently
brighter, a faint though distinct odor is present when specimens are
fresh, and the gills are typically close.
90. Pholiota flavida (Fr.) Singer, Lilloa 22: 516. 1949. (issued 1951)
var. flavida.
Agaricus flavidus Fries, Syst. Myc. 1: 250. 1821.
Flammula flavida (Fr.) Quelet, Champ. Jura & Vosges 130. 1872.
Dryophila flavida (Fr.) Quelet, Enchir. Fung. p. 71. 1886.
Illustrations: Text figs. 182-183; pl. 34.
Pileus 3-7 cm broad, convex, expanding to broadly convex or nearly
plane, margin incurved at first, surface thinly viscid and glabrous except
for faint veil remnants variously arranged along the margin, yellow to
watery dingy ochraceous-tawny, near "warm-buff" or brighter where
faded, often with a watery zone along the margin. Context rather thick
and firm, yellowish; odor faintly fragrant, taste mild.
Lamellae adnate to adnexed, close, narrow to moderately broad,
pallid when young, pale rusty brown to "Sudan brown" in age, thin,
edges even, no color change when bruised.
Stipe (4) 6-10(12) cm long, 5-15 mm thick, equal or narrowed
below, solid, pallid and silky above, with a faint evanescent zone of fibrils
from the thin veil, lower part fibrillose-striate, becoming dark rust brown
from base upward. Veil yellowish.
Spores 7-9 x 4-5 /u, smooth, apical pore distinct and apex in many
appearing slightly truncate; shape ovate to subelliptic in face view, in
profile somewhat inequilateral, with a slight apiculus and a faint suprahilar depression in some; color in KOH dull tawny fading to ochraceous
on standing, in Melzer's reagent soon decidedly darker and redder
(somewhat dextrinoid).
Basidia 4-spored, 24-32 X 5-7 /u, utriform (mostly slightly ventricose
in midportion), yellowish in KOH and also in Melzer's reagent. Pleurocystidia none, cheilocystidia versiform, 26-40 X 3-9 u, subclavate, subfusoid to near cylindric but outline mostly irregular, thin-walled, smooth.
content homogeneous. Caulocystidia similar to cheilocystidia or longer
and more versiform: 1) clavate and 15 X 9 /i (these rare); 2) elongatesubclavate 30-55 x 5-8 /x, outline irregular; 3) a few utriform-elongate.