Trappea darkeri
Mycotaxon 38: 3. 1990.
Common Name: none
Synonym: Hysterangium darkeri Zeller
For description see Castellano, Zeller, & 'California Mushrooms'.
Solitary to scattered, hypogeous under conifers; not uncommon, fruiting from spring through fall, usually above 1000 m elevation, widely distributed.
Unknown.
Trappea darkeri can be distinguished by white, bruising buff-brown peridium, rubbery-gelatinous olive-green gleba that is white near the edges, white basal rhizomorphs, small, smooth spores, and growth with montane conifers. Hysterangium species are similar in that they have a rubbery-gelatinous olive-green gleba but Hysterangium forms a separable peridium, and has much larger, roughened to pustulate spores.
Castellano, M.A. (1990). The new genus Trappea (Basidiomycotina, Hysterangiaceae), a segregate from Hysterangium. Mycotaxon 38: 1-9. (PDF)
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Gómez-Reyes, V.M., Gómez-Peralta, M., Terrón-Alfonso, A., & Guevara-Guerrero, G. (2014). Descripción de Trappea darkeri (Trappeaceae: Hysterangiales) de México. Revista Mexicana De Biodiversidad 85: 1265-1268. (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)
Trappe, M., Evans, F. & Trappe, J.M. (2007). Field Guide to North American Truffles. Ten Speed Press: Berkeley, CA. 136 p.
Zeller, S.M. (1939). New and noteworthy Gasteromycetes. Mycologia 31: 1-32. (Protologue)
