Jm. Trappe et al., NATS TRUFFLE AND TRUFFLE-LIKE FUNGI .6. STEPHENSIA BYNUMII SP. NOV. (ASCOMYCOTA), WITH A KEY TO THE SPECIES OF STEPHENSIA, Mycotaxon, 64, 1997, pp. 431-435
A new truffle species,Stephensia bynumii, related to the Otidiaceae of
the Pezizales, is described as endemic to the Willamette Valley of no
rthwestern Oregon. A world key to the six species of Stephensia is pre
sented.