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

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The North American Species of Pholiota

dead trees, logs etc., Agate Beach, near Joyce Wash. Sept. 24, 1935.
Smith 2585, type.
OBSERVATIONS: For years we have identified this species as P. squarroso-adiposa but Lange described the latter as having yellowish gills
when young, and the stipe as having ferruginous-cinnamon scales. In ours
the scales are not so dark colored and as dried the stipe is the same color
over all, not darker below as in P. connata and as shown by Lange for
P. intermedia (squarroso-adiposa). There is also the difference in habitat,
one on conifer wood and the European species on that of Juglans, a
deciduous species. In view of the fact that in North America there has
been much confusion in the application of the names for taxa in this
group we choose not to ignore the differences shown by American collections even though some may appear to be of minor importance. The
spores in P. aurivella are larger but the stipe features of P. abietis remind
one of that species.
112. Pholiota limonella (Pk.) Saccardo, Syll. Fung. 5: 753. 1887.
Agaricus (Pholiota) limonellus Peck, New York State Mus. Ann. Rept.
31: 33. 1879.
Hypodendrum limonellum (Pk.) Murrill, Mycologia 4: 261. 1912.
Illustrations: Text figs. 237-239.
Pileus 2.5-5 cm broad, convex or nearly plane, sometimes umbonate,
lemon-yellow when fresh, with scattered reflexed or suberect fibrillose
reddish or tawny scales, viscid. Context thin, yellow.
Lamellae sinuate-adnate or slightly adnexed, whitish, becoming ferruginous, narrow (2-4 mm broad), close.
Stipe 3-7 cm long, 3-5 mm thick, pallid or yellowish, with scattered,
recurved yellow scales, smooth above the annulus, equal. Veil forming a
floccose, evanescent yellow annulus.
Spores 6-7.5 x 4-5 /i, smooth, apical pore distinct causing apex to
appear subtruncate in some; shape in face view ovate to elliptic, in profile
obscurely bean-shaped to obscurely inequilateral, color in KOH dull
tawny to ochraceous tawny, in Melzer's reagent more ochraceous on
standing; wall about 0.3,u thick.
Basidia 4-spored, 18-24 x 6-7.5 /, at apex, about 2,/ in the pedicel,
hyaline in KOH, nearly so in Melzer's reagent. Pleurocystidia 23-40 x
7-12,., long-pedicellate and clavate-mucronate to subclavate above, with
a hyaline refractive inclusion as revived in KOH or containing evenly
ochraceous to rusty brown homogeneous material, smooth, thin-walled.
Cheilocystidia 23-30 X 5-9 /L, clavate, fusoid, or subcylindric, content
usually ochraceous, thin-walled, smooth. Caulocystidia rare, resembling
the cheilocystidia.
Gill trama of a central area of interwoven hyaline hyphae reddish
orange in Melzer's reagent as revived, walls thin and smooth; subhymenium of gelatinous narrow hyphae. Pileus cuticle a gelatinous pellicle of