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

Smith * Hesler

263

to distinctly thickened (up to 1.5,/ in ventricose part, content colloidal,
reticulate or diffuse and amber-brown to yellow in KOH fading to nearly
hyaline, with rods and particles of solid material often in upper end of
neck. Cheilocystidia 34-68 x 7-14 u, small and subfusoid, to fusoidventricose like pleurocystidia but usually wall thin, or thickened from
above pedicel to apex (where it is thin). Caulocystidia none found,
(only dried material examined).
Gill trama a central area of floccose hyphae subparallel in arrangement, the hyphal cells 4-9 /a diam. and inflating to 16,t or more in age,
walls thin, smooth and yellowish in KOH; subhymenium a distinct gelatinous layer of interwoven hyaline llypllae 2-3 /u diam. more or less intricately branched. Pileus cutis a gelatinous pellicle of narrow hyphae over
a hypodermium of dark rusty brown (in KOH) floccose heavily incrusted
hyphae. Context hyphae interwoven, walls yellowish in KOH (not reviving well in type). Clamp connections present. All hyphae inamyloid.
HABIT, HABITAT, AND DISTRIBUTION: On soil, apparently attached to
buried wood, Jamaica, October, type studied.
OBSERVATIONS: Murrill (1913) states that the pileus surface resembles
Hypholoma (Naenmatoloma) s lblateritilnm. Murrill also describes the
pileus as dry, but sections of the type reveal a distinct gelatinous cutis
and a hypodermial layer. The pleurocystidia distinguish it at once from
the common brick-cap. The color of tle mature gills, however, suggests
purple brown spores. In tie dried material, however, the gill color is that
of the P. spulmosa group generally. Because of the gelatinous pellicle of
the pileus, the large pleurocystidia and the gelatinous subhymenium,
the species is unquestionably a Pholiota.
140. Pholiota ferruginea sp. nov.
Illustrations: Text figs. 297-298.
Pileus 4-8 cm lallus, obtusus demnull obtuse uImbonatus, visciduts,
ferrugineus, ad marginem aurantio-oclhaccus. Contcxtus luteus. Lamcllae
latac, cofertac, demu sl(bdecurrentes. Stipe.s 5-8 cm lon gns, 3-8 inmn
(rassUs, acq', C alls, fl ct is, f subllt its, s..1'ursut s)cicclus, dcorsu. fibrillosus
ct demum fulvus. Velum fibrilloslum copiosum. Sporae 6-7 x 3.5-4 ui.
Plclrocystidia 45-65 X 9-14 a fusoide vcnltricosa crasso-tulnicata (1.5-4 _t).
SpecimenC typicumr in Herb. Univ. of AMich. conscrvatlnm est; legit propc
Port Angeles, WVash., 21 Sept. 1941. Smith 17092.
Pileus 4-8 cm broad, obtuse with a curved in margin when young,
expanding to broadly umbonate witll a decurved margin, surface viscid,
ferruginous, gradually becoming more orange to ochraceous along the
margin and disc ferruginous-brown. Context yellowish, odor and taste
not recorded.
Lamellae moderately broad, close, adnate, developing a decurrent
tooth, pale yellow or very soon becoming so, finally dull tawny from the
spores, edges even.