446.) Rhodocollybia sp. (sister species of R. olivaceogrisea) – Photo E-221
Caps – 2 ½ - 6 cm wide, convex to irregularly domed, usually bluntly umbonate. Smooth, lubricous. Brown to ochre-brown. Context thick, whitish.
Gills – Adnexed, white, sometimes forking near cap margin. Edges minutely crenulate. Ascending lamellulae.
Stipe – 1 ¼ - 2⅛ cm thick and 3-7 ½ cm long. Buff becoming pale orange straw color on lower stem. Barely striated, expanding at base. Base often subsulcate. Apex finely pruinose, white. Base with white tomentum. Context watery buff.
Odor & Taste – Mild.
Spores – White, inamyloid.
Habitat – Scattered in conifer duff at Vendovi Island on October 16, 2013.
Spores - Ellipsoid in face view, lacrymoid in profile. 7.9-8.8 x 3-4 microns. Q = 2.65.
Basidia - Cylindro-clavate to slenderly clavate, 2 and 4-spored, usually with a septum in the middle.
28-30 x 6-7.8 microns
Cheilocystidia - None seen.
Pleurocystidia - None seen.
Clamps - On the bases of basidia.
Gill Trama - Of parallel hyphae 3.5-11 microns wide.
Pileipellis - Of radially repent hyphae 3-9 microns wide.
Pileal Trama - Of interwoven hyphae 8-12 microns wide.
Stipitipellis - Of vertically parallel hyphae 4-10 microns wide.
Caulocystidia - None seen.

Along abandoned road near Flag Point in Wasco county (grand fir, lodgepole, manzanita).

Seemed to have greenish hints. Cuplike, maybe keying to H. leucomelaena.

Vouchered since it seemed to have small sequestrates underneath, suggesting a parasitic relationship perhaps.

Dried at 90F and refrigerated in ziplock.