San Francisco State University, Harry D. Thiers Herbarium (SFSU)
SFSU-F-002664
14866a69-7597-46a7-9be9-c44d15451efa
Boletus spadiceus Krombh.
Boletaceae
H. D. Thiers
H. D. Thiers
17579
1966-09-11
USA, Idaho, Bonner, Head of Priest Lake.
48.740027 -116.826163 +-3000m.
Densely gregarious in soil along road cut.
Looks like California B. subtomentosus, except darker olive, particularly when young. Turns blue. KOH and NH4OH on cuticle quickly green, then black, then brown. KOH - flesh of cap yellow, stipe brown. FeSO4 gray on flesh, blackish on cap.