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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Plagiomnium affine
BISH 472058
Robertson, M.R., 1960
east end of Crooked Pond, Essex County
Mnium hornum
BISH 472105
Robertson, M.R., 1960
brook flowingout of Crooked Pond, Boxford
Rhizomnium punctatum
BISH 472152
Robertson, M.R., 1960
just below beidge (bridge?) over outlet of Crooked Pond, Boxford, Essex Co.
Rhizomnium punctatum
BISH 472160
Robertson, M.R., 1960
Outlet of Crooked Pond, Boxford, Essex Co., Mass., U.S.A.
Pohlia nutans
BISH 475335
Robertson, M.R., 1960
between Brimbal Ave. and Essex St., Beverly, Essex County