Vascular Plants: Review of Status in Pennsylvania
نویسنده
چکیده
Seminal works on vascular plants in Pennsylvania include the Flora of Pennsylvania (Porter 1903), Wild Flowers of Western Pennsylvania and the Upper Ohio Basin (Jennings and Avinoff 1953), and Atlas of the Flora of Pennsylvania (Wherry et al. 1979). Given the age of Porter's work and the fact that Jennings and Avinoff's publication included only western Pennsylvania, the major reference work on the flora of the state was, until recently, the atlas by Wherry et al. (1979).
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