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

3 specimens

Ptychomitrium drummondii

BISH 475998

Small, J.K.; NULL, 1895
On Ulmus, Augusta, Georgia.

Ptychomitrium drummondii

BISH 475999

Sharp, A.J.; NULL, 1959
In Mocksville, Davie Co.

Ptychomitrium drummondii

BISH 476000

Ellis, L.; NULL, 1977
Columbia, Richland Co., South Carolina