1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
3 specimens
Potamogeton perfoliatus
BISH 17293 · St.John, H., 1913
Sable Island, Canada
BISH 450225 · St.John, H.; Hunnewell, F.W., 1916
Barnstable County. West Barnstable
BISH 732768 · Einetell, I., 1883
Sweden
