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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.

2 specimens

Pilularia americana

BISH 403707

Thorne, R.F.; Lathrop, E., 1969
Riverside County. Santa Rosa Plateau. On south end of Mesa de Colorado, Rancho California.

Isoetes howellii

BISH 403730

Tyhorne, R.F.; Lathrop, E., 1969
Riverside County. Santa Rosa Plateau, Mesa de Colorado, Rancho California.