1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
2 specimens
Trechispora candidissima
BISH 621827 · Cooke, W.B., 1938
Linn County; three miles south of Corvallis on the Peoria Road
Trechispora mollusca
BISH 621844 · A.M.; Rogers, D.P.
Benton County; Alsea Mountain
