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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Ptychostomum creberrimum
BISH 463152
Crum, H., 1961
Canada
Ptychostomum pallescens
BISH 463754
Crum, H.; Williams, H., 1960
Canada
Ptychostomum pseudotriquetrum
BISH 463773
Crum, H.; Williams, H., 1960
Canada
Ptychostomum schleicheri
BISH 463798
Crum, H.; Schofield, W.B., 1955
Canada
Plagiobryum zieri
BISH 473952
Crum, H.; Schofield, W.B., 1955
Canada
Rhodobryum roseum
BISH 476629
Crum, H.; NULL, 1964
Canada