1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
2 specimens
Atrichum angustatum
BISH 461549
Pursell, R.A., 1974Huntingdon Co.; shale barren overlooking Aughwick Creek; ca 0.4 mi ENE of Pogue
Atrichum crispum
BISH 461556
Pursell, R.A., 1974Elk Co.; ca 5.5 mi NE of Wilcox