Tricholoma jalapense (Murrill) Sacc. & Trotter 1925

Melanoleuca jalapensis Murrill, Mycologia 3: 194. 1911
Tricholoma jalapense Murrill, Mycologia 4: 332. 1912.
Pileus convex, much split at the margin, solitary, 4 cm. broad; surface dry, glabrous, shining, more or less radiate-rimose, the castaneous cuticle remaining entire at the center but almost disappearing near the margin, where it persists in faint streaks or patches; context thin, white, sweet ; lamellae adnate with a slight sinus, narrow, rather close, cremeous, pruinose under a lens; spores globose, smooth, hyaline, 5 n; stipe cylindric, equal, glabrous, white, with a tough rind, 4 cm. long, 7 mm, thick, abruptly bulbous at the base as in some species of Cortinarius.
Type locality: Jalapa, Mexico. Habitat: Rich soil in a moist virgin forest. Distribution : Known only from the type locality.