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

Smith ~ Hesler

65

North American material he cites more than likely belongs in P. granulosa as this is the common species around Douglas Lake, Mich. P. curcuma is distinct because of the very heavy dark colored pigment incrustations of the trichodermial hyphae.
MATERIAL EXAMINED: IDAHO: Smith 54130, 65985, 73450, 73451,
73452. MICHIGAN: Smith 33-971, 31. WYOMING: Smith 34429.
16a. Pholiota curcuma var. lanatipes var. nov.
Illustrations: Text figs. 24-25.
Pileus 7-20 mm latus, late convexus, siccus, squamulosus, subcastaneus. Lamellae confertac, latae, adnatae, pallide ochraceae demum fulvae.
Stipes 1.5-3 cm longus, 1-1.5 crassus, subannulatus, deorsum fulvus.
Sporae 7-8 x 3.5-4 La. Pleurocystidia desunt. Cheilocystidia 20-32 x 7 -12 A,, clavata vel fusoide ventricosa. Specimen typicum in Herb. Univ.
Mich. conservatum est; legit prope Lewiston, Mich. 3 Juli 1963, Smith
66988.
Pileus 7-20 mm broad, broadly convex with an incurved margin,
expanding to plane or nearly so, surface dry and densely and minutely
tufted-squamulose, dark rusty reddish brown overall, slowly becoming
slightly paler. Context thin, yellowish, taste mild, with FeSO4 olive; with
KOH dark russet.
Lamellae close, broad, adnate, pale dingy ochraceous, when mature
dull rusty brown; edges crenulate.
Stipe 1.5-3 cm long, 1-1.5 mm thick, equal, thinly fibrillose below
and at first with a delicate submembranous annulus, at times veil remnants hanging on pileus margin, becoming rusty brown below, near apex
about cinnamon buff, apex silky pruinose. Veil ochraceous, submembranous to fibrillose.
Spores 7-8 x 3.5-4 /u, smooth, dull tawny to darker rusty brown in
KOH, oblong to subelliptic in profile with the ventral line (in optical
section) almost straight, in face view elliptic to ovate and some obscurely
angular, apical pore present as a minute apical discontinuity, wall estimated at 0.25 /, thick.
Basidia 4-spored, 20-25 x 5-6 pt, hymenium yellow in KOH. Pleurocystidia 20-32 x 7-12 Lt, clavate, utriform or broadly fusoid-ventricose
with rounded apex, smooth, thin-walled, hyaline in KOH.
Gill trama of more or less parallel hyphae with cells in central area
8-15 /u broad, and with ochraceous smooth walls in KOH but toward
subhymenium 3-6,/ wide and walls paler; subhymenium not truly differentiated as a layer. Pileus epicutis a shortened trichodermium of inflated
hyphal cells 10-25 /L wide with conspicuous plates or patches of rusty
cinnamon deposits (as seen both in KOH and in Melzer's reagent), the
end-cell often smaller than the penultimate cells and ovate to elliptic in
optical section, cell walls thin and ochraceous. Clamp connections present.
All tissues inamyloid.