Phytogeography of the Virginias and the Equilibrium Concept of Landscape

ABSTRACT
Acceptance of Hack’s Equilibrium Concept of Landscape would eliminate the erosion-cycles peneplanation idea as an explanation of coastal plain-mountain disjunct patterns of plant distribution in eastern North America. Palynological and other paleobotanical evidences point to the interplay of Cenozoic climate fluctuations, the changing landscape, and barriers which these phenomena form, as primary causes of these disjunct patterns.