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Rhodocollybia badiialba
(Murrill) Lennox
Mycotaxon 9(1): 224. 1979.
Common Name: none
Pileus
Cap 3-6 cm broad, convex, sometimes with a low umbo expanding to nearly plane at maturity, the disc then sometimes slightly depressed; margin entire to wavy, decurved, becoming more or less plane to slightly upturned; surface glabrous, lubricous, dark reddish-brown, the margin pallid, fading overall in age; odor and taste mild.
Lamellae
Gills adnate, white, close to crowded, moderately broad, the edges finely toothed.
Stipe
Stipe with thickened strands of white mycelium; surface striate, tan-buff to pinkish-buff, paler at the apex; veil absent.
Spores
Spores 3.5-5 x 3.5-4.75 µm, nearly globose, smooth, nonamyloid; spore print off-white.
Habitat
Scattered to gregarious on needle duff or on rotting wood in conifer woods; fruiting late fall to mid-season.
Edibility
Unknown.
Comments
This attractive Rhodocollybia is characterized by a deep reddish-brown, lubricous cap, white, finely scalloped-edged gills, and a buff-brown to pinkish-brown, striate stipe. Rhodocollybia butyracea is similar but usually paler. A microscope is required to confirm an identification. The spores of Rhodocollybia badiialba are nearly round, while those of R. butyracea are elliptical and larger.
References
Lennox, J.W. (1979). Collybioid genera in the Pacific Northwest. Mycotaxon 9(1): 117-231.
Other Descriptions and Photos
(D=Description; I=Illustration; P=Photo; CP=Color Photo)
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