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

Smith ~ Hesler

195

fibrillose annulus with recurved dry squamules, base of stipe pale tawny.
Spores 6-7.5 x 4-4.8 (5) /,, smooth, apical pore none or exceedingly
small; shape in face view broadly ovate to elliptic, in profile obscurely
bean-shaped to elliptic; wall thin (-0.25 /u); color in KOH dull cinnamon, paler to nearly the same color in Melzer's reagent.
Basidia 18-23 x 5.5-6.5 a, clavate, yellowish in KOH and in Melzer's
reagent. Pleurocystidia numerous and prominently projecting 33-52 (68)
x 7-12(15) Lx, clavate, clavate-mucronate, or fusoid-ventricose, content
evenly refractive as in P. squarrosoides (relatively few with a highly refractive inclusion and hence typical for chrysocystidia); color in Melzer's
reagent evenly yellowish, in KOH refractive-hyaline or some with bright
ochraceous content and connected to laticiferous elements with the same
colored content, walls thin, smooth and liyaline. Cheilocystidia 28-37 x
6-11 /u, clavate, utriform, or fusoid-ventricose, with hyaline to yellow
content in KOH, walls tlin and smooth content, homogeneous. Caulocystidia scattered as clavate cells 29-48 X 8-12 /i, thin-walled, smooth,
content homogeneous.
Gill trama with a floccose central area flanked on either side by a
subgelatinous subhymenium. Pileus cutis with a subgelatinous layer (as
a sublcutis), the hyphae 3-5 /z and yellowish in KOH; hypodermium not
differentiated. Context hyplhae hyaline to yellowish in KOH, walls thin
and becoming inflated. Clamp connections present. All hyphae inamyloid.
HABIT, HABITAT, AND DISTRIBUTION: (Caespitose at base of tree, Marquette, Michigan. Aug. 29, 1906. L. H. Pennington, type.
OBSERVATIONS: The specimens were identified as P. squarrosoides by
Kauffman, but as dried almost exactly resemble in color and markings
those of P. s.quarrosa. The subcutis is merely subgelatinous-an intermediate state between the two species already mentioned. The spore
shape, however is not typical of either. The plleurocystidia are much
larger than in P. rigidipes.
100. Pholiota terrestris Oerhlolts, North Amer. Fl. 10: 278. 1924.
Illustrations: Text figs. 199-201; pl. 44.
Pileus (1) 2-8 (10) cm broad, when young obtusely conic to convex,
soon obtusely umbonate, at maturity expanded and with a slight umbo,
at times nearly plane, usually covered with numerous fibrillose scales,
or toward the margin merely fibrillose streaked, a gelatinous layer present
beneath the scales and the latter consequently becoming rather readily
weathered away, scales or fibrils "wood brown" along the margin, near
"Verona brown" on the disc, when young the whole pileus evenly "warm
sepia" because of the fibrillose covering, at times "Prout's brown" to
"cinnamon-brown" when freshly matured, margin usually fibrillose-appendiculate. Context rather thick (more or less 4 mm), watery buff to
brown, pliant and subcartilaginous; odor and taste mild.