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

Smith ~ Hesler

351

thin, yellowish in KOH; often with subgelatinous hyphae 2-3 pt diam.
mixed in or around the cluster (resembling hyphae of pileus cutis).
Gill trama a central area of floccose hyphae 4-8 p, diam. (or more
after cells have inflated), walls smooth and hyaline to ochraceous or pale
rusty in KOH; subhymenium a thin cellular zone not distinctly gelatinizing but outlines of cells including the base of the basidia (but not
cystidia) soon indistinct. Pileus cutis a gelatinous pellicle of narrow
(2-3 p.) ochraceous hyphae collapsing in age, often filled with ochraceous pigment; hypodermium a region of inflated rusty brown hyphal
cells, walls incrusted on some, cells 8-18 pu broad; context hyphae paler
than the hypodermial hyphae, nearly hyaline near subhymenium; wall
thin and smooth. Clamp connections present. All hyphae inamyloid.
HABIT, HABITAT, AND DISTRIBUTION: On sandy humus. Proud Lake
Recreation Area. Oakland County, Michigan, Nov. 16, 1958. Smith
60810, type.
OBSERVATIONS: This species is at once distinguished from P. highlandensis (Flammula carbonaria Fries) in lacking the characteristic
gelatinous type of subhymenium found in most species of subgenus
Flammuloides. It also differs in habitat (on sandy soil under beechmaple instead of a burned area).
191. Pholiota milleri sp. nov.
Illustrations: Text figs. 511-513.
Pileuis 2-3.5 cm latus, obtuse conicus, subviscidus, virgatulus, sordide
cinnamomeus. Contextus albus. Lamellae brunneolae, anguste confertae;
stipes 3-5 c7n latus, 4-8 mm crassus, sursulm citrino-pallidus, deorsum
pallidus vel subsordidus. Sporae 6-8 x 4-4.5 pt. Pleurocystidia 50-70 x
10-15 /p, tennitlnicata. Specimen typicinm in Herb. Univ. of Mich. conservatum est; legit prope Priest River Experimental Forest, 6 Juli 1964.
0. K. Miller 23,82.
Pileus 2-3.5 cm broad, obtuse, expanding to obtusely conic or campanulate, umbonate, surface slightly viscid but soon dry and appearing
obscurely fibrillose or streaked, near "Verona-brown" unless darkened
from spores. Context white, odor none, taste mild; FeSO4 olive, KOH
on cutis no reaction.
Lamellae adnate, dull brown when young, darker than "Veronabrown" when mature, crowded, narrow, edges even.
Stipe 3-5 cm long, 4-8 mm thick, equal or base with a slight rounded
bulb, surface above citrine-pallid and with very inconspicuous fibrils or
squamules from a rudimentary veil, base not darkening.
Spores 6-8 x 4-4.5 up smooth, apical pore small but evident; shape
in face view oblong to elliptic, in profile elliptic to obscurely inequilateral; in KOH dark rusty, cinnamon, paler but reddish cinnamon in
Melzer's reagent; wall about 0.3 pu thick.
Basidia 24-27 x 5-7 pu, 4-spored, short-clavate, ochraceous in KOH