Manual of the Mosses of Western PennsylvaniaOtto Emery Jennings · First published 1913 · Latest edition 2009Open the Tome
Wild flowers of western Pennsylvania and the upper Ohio basinOtto Emery Jennings · First published 1953Open the Tome
A manual of the mosses of western Pennsylvania and adjacent regionsOtto Emery Jennings · First published 1951Open the Tome
The flora of Cook Forest, Clarion and Forest counties, PennsylvaniaOtto Emery Jennings · First published 1928Open the Tome
Studies in the genus Lactuca in western PennsylvaniaOtto Emery Jennings · First published 1921Open the Tome
Fossil plants from the beds of volcanic ash near Missoula, western MontanaOtto Emery Jennings · First published 1920Open the Tome
A contribution to the botany of the Isle of Pines, CubaOtto Emery Jennings · First published 1917Open the Tome
Note on the geology of the Isle of Pines, CubaOtto Emery Jennings · First published 1913Open the Tome
Notes on the pteridophytes of the north shore of Lake SuperiorOtto Emery Jennings · First published 1913Open the Tome
A descriptive key to the woody climbing plants commonly cultivated in OhioOtto Emery Jennings · First published 1908Open the Tome
Additions and corrections to the list of the vascular flora of Alleghany County, PaOtto Emery Jennings · First published 1906Open the Tome
