1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
2 specimens
Sphagnum affine
BISH 483237
Bartlett, H.H.; NULL, 1910near Hyattsville
Sphagnum inundatum
BISH 483241
Bartlett, H.H.; NULL, 1910Glenn Dale, Prince George Co.