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

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The North American Species of Pholiota

ovate in face view, obscurely inequilateral in profile, smooth, germ-pore
present.
Basidia 24-30 x 5-6 pt, 4-spored. Pleurocystidia 33-50 x 9-15 pu,
flask-shaped to ventricose, apex at times crystallate, sometimes with a
brown pigment, walls thickened. Cheilocystidia 37-50 x 7-10 pU, ventricose and similar to pleurocystidia, at times with a brown pigment. Caulocystidia none.
Gill trama with a central area of narrow (2-4 t), subparallel hyphae,
flanked by a gelatinous subhymenium. Pileus trama radial. Cuticle a
gelatinous zone of narrow, brownish hyphae, some of which are slightly
incrusted, these resting on an hypodermium of brown hyphae. Clamp
connections present.
HABIT, HABITAT, AND DISTRIBUTION: On soil, clay bank, possibly
attached to buried sticks or roots, Alabama, December. Type studied.
OBSERVATIONS: The description of microscopic characters is based
on a study of the type. This species is near P. gregariformis, in which,
however, the lamellae are close, the spores slightly longer and broader,
and-caulocystidia similar to the pleurocystidia are present.
131. Pholiota condensa (Pk.) comb. nov.
Flammulla coundensa Peck., Bull. Torrey Club 33: 217. 1906.
Gymnopilus condelsuts (Pk.) Murrill, North Amer. Fl. 10: 198. 1917.
Illustrations: Text figs. 279-280.
Pileus 2-3 cm broad, convex or nearly plane, often irregular from
its densely caespitose mode of growth, usually umbonate, brownish yellow, the umbo reddisli brown or chestnut colored, viscid when fresh.
Context white, often tinged with yellow.
Lamellae adnate or slightly decurrent, yellowish becoming brownish
ferruginous, moderately broad, subdistant, sometimes rugosely wrinkled.
Stipe 2-4 cm long, 2-3.5 mm thick, apex yellowish, pallid or brownisll toward the base, equal, hollow.
Spores 7-9 (10) X (3.7) 4-5 tu, smooth, apical pore distinct but apex
not truncate; shape subelliptic to ovate (rarely obscurely angular) in
face view, varying from obscurely bean-shaped to obscurely inequilateral
in profile, tawny to ochraceous-tawny in KOH, in Melzer's sligltly more
cinnamon-color, wall about 0.3 pt thick.
Basidia 20-25 X 5.5-7.5 u, 4-spored, clavate, yellowish in KOH
and in Melzer's reagent. Pleurocystidia 48-72 x 7-14 pt, fusoid-ventricose,
apex usually obtuse, neck undulating, walls smooth or coated with
amber-brown amorphous coating, thin-walled or wall up to 0.4 Fu thick,
content often amber-brown in KOH but fading to yellowish on standing,
rarely with any inclusions such as rod-like particles but colloidal material
evenly dispersed and evident in the neck of many. Cheilocystidia 30-50
X 6-12,u, fusoid to fusoid-ventricose, otherwise similar to pleurocystidia.