San Francisco State University, Harry D. Thiers Herbarium (SFSU)
SFSU-F-012371
e8f3fdd2-144d-48f9-a71d-e29fb8d87472
Cortinarius bigelowii Thiers & A.H. Sm.
Cortinariaceae
H. D. Thiers
H. D. Thiers
32433
1974-07-17
USA, California, Sierra, Yuba Pass.
39.625005 -120.576795 +-15000m.
Placed marker at SFSU's Sierra Field campus, and set error at 15 km to include all frequently visited collection localities.
Gregarious in soil under conifers.
"Cuticle reaction (KOH) looks similar to bigelowii/verrucaesporus. Basidiospores are amygdaliform, but size (and even shape variable) up to 15 x 7.5 µm which is way large for these species. Range, coarse ornamentation, 10.5 x 7 to larger, up to 15 x 7.5 µm. 40% KOH on pileus surface dull reddish"