1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
2 specimens
Potamogeton amplifolius
BISH 149860 · Seymour, F.C., 1952
Lincoln Co. - Bradley - Tomahawk River
BISH 150143 · Seymour, F.C., 1963
Essex County - Concord - Miles Pond
