1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
3 specimens
Chione californiensis
BPBM 255461
Rose Burch; Thomas A. Burch & Beatrice Burch, 1948California
Tapes decussatus
BPBM 255718
Rose L. Burch; Thomas A. Burch & Beatrice Burch, 1961
Chione fluctifraga
BPBM 255807
Rose L. Burch; Thomas A. Burch & Beatrice Burch, 1968Mexico