The North American Species of Pholiota
10. Pholiota fulvella (Pk.) comb. nov.
Flammula fulvella Peck, J. M. Macoun, in D. S. Jordan, Fur Seals of the North Pacific 3: 584. 1899.
Gymnopilus fulvellus (Pk.) Murrill, Mycologia 4: 253. 1912.
Pileus 1.2-2.4 cm broad, convex or nearly plane, subtawny, glabrous, dry, the margin deflexed or incurved. Context whitish.
Lamellae adnate or slightly decurrent, somewhat tawny, inclining toward ochraceous-tawny, thin, subdistant.
Stipe 2.5 cm long, 3-4 mm thick, concolorous, fibrillose or fibrillose-squamulose, equal, solid.
Spores 9-12 x 5.5-7 µ, elliptic to irregularly ovate in face view, inequilateral in profile, smooth, germ pore not distinct.
Basidia 30-43 x 7-10 µ, 4-spored. Pleurocystidia and cheilocystidia none. Caulocystidia none.
Gill trama of hyphae 4-7 µ broad in subparallel arrangement, yellowish brown in KOH. Pileus cutis of appressed hyphae but some more or less erect, brown, and incrusted. Pileus trama of interwoven hyphae yellowish brown in KOH, dark brown in Melzer's reagent. Clamp connections present.
Habit, Habitat, and Distribution: On low ground, St. Paul Island, Bering Sea. Known only from the type.
Observations: In our study of the type we were unable to find either pleurocystidia or cheilocystidia. We place the species here with some reservations. For instance, we doubt if the pileus was actually glabrous. On the assumption that it was not, we have placed the species here. The evidence for this is that incrusted brown epicuticular hyphae were demonstrated which must have formed squamules at first. The large spores and lack of cheilocystidia would seem to place the species near P. aurea—if one disregards size of the basidiocarp.