Collybia tuberosa
Führ. Pilzk. (Zerbst): 119. 1871.
Common Name: none
For descriptions see Halling, Lennox, and Knudsen & Vesterholt (2008)
Scattered to gregarious on blackened, well-rotted mushrooms, typically Russula or Lactarius.
Unknown, too small to be considered for food.
Collybia tuberosa can be distinguished by its small size, whitish cap, growth on very rotten mushrooms, and reddish brown sclerotia that resemble apple seeds. Collybia cirrhata and Collybia cookei are very similar, but C. cirrhata has no sclerotia and C. cookei has small, round sclerotia.
Antonín, V. & Noordeloos, M.E. (1997). A Monograph of Marasmius, Collybia and related general in Europe. Part 2: Collybia, Gymnopus, Rhodocollybia, Crinipellis, Chaetocalathus, and additions to Marasmius. IHW - Verlag: Eching, Germany. 256 p.
Antonín, V. & Noordeloos, M.E. (2010). A monograph of marasmioid and collybioid fungi in Europe. IHW-Verlag: Eching, Germany. 480 p.
Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Halling, R.E. (1983). The Genus Collybia (Agaricales) in the Northeastern United States and Adjacent Canada. J. Cramer: Braunschweig, Germany. 148 p.
Knudsen, H. & Vesterholt, J. ed. (2008). Funga Nordica: Agaricoid, boletoid and cyphelloid genera. Nordsvamp: Copenhagen, Denmark. 965 p. (PDF)
Knudsen, H. & Vesterholt, J. ed. (2012). Funga Nordica: Agaricoid, boletoid, clavarioid, cyphelloid and gastroid genera. Vol. 1. Nordsvamp: Copenhagen, Denmark. 511 p.
Lennox, J.W. (1979). Collybioid genera in the Pacific Northwest. Mycotaxon 9(1): 117-231. (PDF)
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
