The North American Species of Pholiota
202. Pholiota fulviconica (Murr.) comb. nov.
Gymnopilus fulviconicus Murrill, Florida Acad. Sci. Proc. 7: 120. 1945.
Flammula fulviconica (Murr.) Murrill, Florida Acad. Sci. Proc. 7: 127. 1945.
Pileus 3 cm broad, conic, not fully expanding, fulvous on the disc, paler toward the margin, solitary, viscid, surface smooth, glabrous, margin even, entire, incurved when dry. Context thin, pallid; odorless, taste mild.
Lamellae adnate with decurrent tooth, ferruginous at maturity, inserted, broad, medium distant, entire.
Stipe about 5 cm long, 7 mm thick, subequal, smooth, glabrous, pale yellowish above, fulvous below.
Spores 6-7.5 x 3.8-4.5 µ, more rarely 8-9 x 5 µ, elliptic or more rarely subovate in face view, inequilateral in profile; smooth; germ pore minute.
Basidia 22-25 x 5-6 µ, 4-spored. Pleurocystidia 48-65 x 8-10 µ, ventricose, usually colorless, sometimes brown, apices sometimes with an exudate; cheilocystidia 30-58 x 8-10 µ, similar.
Gill trama with a central stratum of hyphae subparallel and 3-5 µ broad. Pileus trama radial. Cuticle a gelatinous zone of loose, narrow (1-2.5 µ broad), colorless hyphae, resting on a hypodermium of incrusted, brown hyphae. Clamp connections present. Caulocystidia none. Pileus and gill trama pale yellowish in KOH; dark dingy brown in Melzer's reagent (data by Hesler).
Habit, Habitat, and Distribution: On soil, humus, and rotten logs, Florida, California, and Idaho, August and December. Type studied.
Observations: This may be too close to P. spumosa to recognize it as a separate taxon, but the ferruginous gills may be distinguishing features, the gill color no doubt reflects a similar color in the spore deposit though this remains to be established.
Material Examined: CALIFORNIA: Smith 3789. FLORIDA: type; IDAHO: Smith 65898.