Gymnopus - 180#6
Caps - 1 1/2 - 3 1/2 c m wide, plano-convex or with shallowly sunken discs and grooved-striate margins.
Dark rusty brown, hygrophanous. Context thin. KOH negative on cap surface.
Gills - Adnexed to almost free. Distant, pinkish-brown with edges becoming buff when drying.
Stipe - 5-7 cm long and 2-4 mm thick. Rusty brown, glabrous becoming scurfy near base. Sometimes
pleated. Hollow, equal, or tapering towards base. Pallid mycelial matt at base.
Odor & Taste - Mild.
Spores - White (scant).
Habitat - Scattered and subcespitose in doug fir needle duff under madrone on N. Pender Island, B.C. on
November 26, 1990.
Spores - Ellipsoid-lacrymoid with prominent apiculus. 6.6-8.7 x 3-4.7 microns.
Basidia - Clavate, 4-spored, 20-27.2 x 4.4-7 microns.
Basidioles - Clavate to fusiform, occasionally with apical rostrum. 28-31.2 x 4.4-6 microns.
Cheilocystidia - None seen.
Pleurocystidia - None seen.
Clamps - At bases of basidioles, in the pileipellis, the stipitipellis, and on the caulocystidia.
Gill Trama - Of sinuous parallel hyphae with sporadic branching. Some encrusted.
Pileipellis - Branched and bifurcate hyphae. One hypha with dark green encrustations.
Subpellis - Of roughly parallel hyphae with gelatinous spaces in between. Some also encrusted.
Pileal trama - Of interwoven hyphae.
Stipitipellis - Of vertical hyphae, some heavily encrusted.
Caulocystidia - Found near the stipe base. Clavate to fusiform to strangulated cylindrical, often with
knobby protrusions or lobed projections near the apices. Septate and often clamped.
88.6-136 x 7.4-13.6 microns.
Comment - The cap cuticle did not turn green in KOH.
Caps: 2 ¼ – 5 ½ cm wide, convex, olive-ochre-brown with rusty discs and incurved margins. Glabrous, context buff gray. Gills: Adnexed, deep, subdistant. White, serrate in age. Stipe: 3 ½ – 5 cm long and 1 – 1 ½ cm thick. Tough, cartilaginous, expanded at base. Longitudinally sulcate-striate, tawny brown becoming paler at apex. White tomentum at base. Odor & Taste: Not reported. Substrate: Scattered in needle duff under conifers. Spores: Buff. Ovoid in face view, lacrymoid in profile, 6.9-7.8 x 3.1-4 microns. Q = 1.96. Note: Traditionally in Europe, Rhodocollybia asema or R. butyracea var. asema has been known for its brownish caps. Literature shows us that both smooth stipes and sulcate grooved stipes have been accepted for this species. A photo with a smooth cylindric stipe can be seen in Fungi of Switzerland, Vol.3. A photo showing a grooved stipe can be viewed in Julich and Moser’s Colour Atlas of Basidiomycetes
Fruiting in needle litter(base attached to needles) beneath Douglas fir and Western red cedar. Did not note any Pacific Yew in vicinity.
Fruiting bodies translucent, waxy in appearance with corona like wavy margin. Stem bases staining faintly red where handled.
Harvested 4 specimens.
Laying all specimens directly on a glass slide to obtain spore drop.
Spore print: White.
Mounted spore printed slide in Lugol’s solution.
Spores: Subglobose to globose, very small. Greenish yellow to faintly blue in Lugol’s solution. Weakly amyloid.
Slide#2: carefully shaved a thin section of fertile tissue with straight razor and mounted directly on slide#2. Mounted tissue in KOH.
Basidia: 2 and 4 sterigmate analyzed.
Gloeocystidia: long, slender, very slightly clavate tips.
Dehydrated all specimens thoroughly and bagged for herbarium collection/genetic record.
My coinciding Mushroomobserver observation below-