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

Smith ~ Hesler

187

apex, walls hyaline or toward cap margin many with pale cinnamon
brown walls in some part or overall. Caulocystidia 45-76 X 6-18 fu
clavate to cylindric, walls brown, occurring in tufts.
Gill trama of parallel hyphae 4-10 fL broad, hyaline in KOH and
thin-walled; subhymenium cellular. Pileus cutis with an epicutis in the
form of a tangled turf of brown-walled hyphae smooth to slightly incrusted, ochraceous in KOH, dark red-brown in Melzer's reagent; arising
from a layer of appressed yellow-brown hyphae. Content hyphae hyaline
to yellowish in KOH, closely interwoven. Clamp connections present.
Cutis hyphae weakly dextrinoid (reddish cinnamon).
HABIT, HABITAT, AND DISTRIBUTION: On humus, Michigan, August,
Smith 37424, type.
OBSERVATIONS: This species is characterized by its avellaneous to
cinnamon-buff colors, olive to brown fibrillose scales on the cap, twanyolive scales on the stipe, "pseudocystidia" and relatively large spores.
The features of this species are peculiar. The hyphae of the laticiferous system in some instances were seen to produce basidia-many of
which were seen to bear immature spores; These basidia were often of
indefinite length in that they could be traced back into the gill trama
without finding a septum. The cheilocystidia are not typical of any
Inocybe known to us though the spores and the anatomy of the pileus
cutis suggest that genus. No cystidia were found over the basal or lower
part of the stipe. Since the aspect of the basidiocarp is that of a Pholiota
and the cheilocystidia are not out of line for that genus as far as shape
is concerned, we describe the species here.
94. Pholiota schraderi (Pk.) Overllolts, North Amer. Flora 10: 271.
1924.
Stropharia schaderi Peck, Bull. Torrey Bot. Club 32: 30. 1905.
Illustrations: Text figs. 493-496.
Pileus 5-8 cm broad, convex to nearly plane, pallid when young,
ochraceous-buff when mature, dry, fibrillose, squamulose, or rimosesquamulose on the disc, squamules pale tawny in dried specimens. Context white; taste of radishes.
Lamellae adnate, whitish then brown, close, thin.
Stipe 2-4 cm long, 8-12 mm thick, squamulose and concolorous with
the pileus below, white and mealy above, subequal. Veil forming a small
white, lacerate, sometimes evanescent annulus.
Spores 6.5-8 (10) X 4-4.5 (5.5) /L, smooth, apical pore present but
minute; shape in face view ovate to elliptic and many obscurely angular;
in profile somewhat inequilateral to obscurely bean-shaped; color in
KOH rather bright ochraceous to ochraceous tawny, in Melzer's reagent
slightly duller; wall about 0.3,u thick.
Basidia (21) 24-28 x 6-7.5 Fu, 4-spored, when sporulating clavate
or ventricose in lower half and cylindric above (obscurely urn-shaped),