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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Andreaea rupestris
BISH 461276
Wilkens, H., 1961
Schuylkill County. Ledge on east slope of Mine Hill gap of West Branch of Schuylkill River, 2 miles north-northeast of Minersville
Brachythecium rutabulum
BISH 462728
Wilkens, H., 1951
Berks Co.; Oley Furnace near Friedensburg, about 10 miles NE of Reading
Muhlenbergia sylvatica
BISH 655343 · Wilkens, H., 1952
Pennsylvania; Berks; along Furnace Creek, S of Pricetown