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

Smith - Hlesler

339

regular, hyphae 6-8 /u broad, some yellowish lactifers seen; pleurocystidia
numerous, springing from deep subhymenial layer, lower half inflated,
tapering towards apex, some of them subcapitate or forked, upper part
filled with yellowish brown refractive content, 50-65 x 11-14 /L; cheilocystidia similar; basidia very small, about 16 x 4-6,, 4-spored, sterigmata
long; spores small 5.3-6.7 x 3.2-4 Fu, elliptic subphasaeoliform, pale
Clay Color, with very small apiculus and an obscure small germ-pore.
Quite closely related to Pholiota lenta (Pers. ex Fr.) Singer from
which it differs but slightly in microscopic characters, but the covering
of the cap never breaks up in scales, the colours are darker, and the
whole plant of coarser stature.
DISTRIBUTION: Only known from the type locality, where it was found
in three places in the same large Salix glanca copse, in deep moss with
Deschampsia flexuosa. We have not examined material since the species
is very readily characterized.
The above account is from Lange's original description and in the
main his format is retained. The species belongs in stirps Lubrica of our
classification by virtue of the cystidia and small spores, but we have seen
nothing like it. In veil features it reminds one of our P. velaglutinosa. It
is a most interesting Pholiota because of its occurrence in relation to
Salix, the viscid stipe, large pleurocystidia, and veil remnants over the
pileus. Anyone collecting in northern Canada should be on the lookout
for it.
184. Pholiota subtestacea (Murr.) comb. nov.
Hebelorna sulbtestaceum Murrill, North Amer. Flora 10: 226. 1917.
Illustrations: Text figs. 412-414.
Pileus 8 mm broad, 5 mm high, broadly conic, not fully expanding,
umbonate, pale testaceous on the umbo, paler elsewhere, viscid, margin
fibrillose from the evanescent veil, incurved.
Lamellae adnate, white to subfulvous, broad, rather distant, edges
entire and concolorous.
Stipe 3 cm long, 2 mm thick above, 4 mm below, stramineous, with
loose tufts of testaceous fibrils from the remains of the fibrillose, evanescent, testacteous veil.
Spores 5.5-7.5 x 4-4.5 /L, smooth, no germ pore evident; shape in
face view oval, in profile obscurely inequilateral; color in KOH ochraceous tawny, in Melzer's reagent dingy ochraceous; wall about 0.25 /,
thick.
Basidia 4-spored, 18-22 X 5-6,/, hyaline in KOH and Melzer's
reagent, somewhat clavate. Pleurocystidia very abundant, 40-56 x 8-16,u, broadly fusoid-ventricose, apex obtuse to subacute, tapered to apex
from broadest point; wall thin and smooth, hyaline; content "empty" or
with a few rods and particles of refractive material in the upper part,