Truncocolumella citrina
Mycologia 31(1): 6. 1939.
Common Name: none
For description see Smith & Singer, Zeller, & 'California Mushrooms'.
Solitary to scattered, hypogeous under conifers, especially Douglas fir (Psudotsuga menziesii); common, fruiting fall through winter, widely distributed.
Unknown.
Truncocolumella citrina is distinguished by its yellow peridium, olivaceous brown gleba, and the presence of a well-developed yellowish white columella. It is related to Suillus and Rhizopogon.
Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
Smith, A.H. & Singer, R. (1959). Studies on Secotiaceous Fungi IV. Gastroboletus, Truncocolumella, and Chamonixia. Brittonia 11: 205-223. (PDF)
Trappe, J.M., Molina, R., Luoma, D.L., Cázares, E., Pilz, D., Smith, J., Castellano, M.A., Miller, S.L. & Trappe, M.J. (2009). Diversity, Ecology, and Conservation of Truffle Fungi in Forests of the Pacific Northwest. U. S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: Portland, OR. 194 p. (PDF)
Zeller, S.M. (1939). New and noteworthy Gasteromycetes. Mycologia 31: 1-32. (Protologue)