. . . . . "Flora of Pennsylvania, and botanist's pocket manual, comprising a glossary of botanical terms, analytical tables, and the natural orders" . . "Flora of Pennsylvania, and botanist's pocket manual comprising a glossary of botanical terms, analytical tables, and the natural orders" . . . . . "Flora of Pennsylvania, and botanist's pocket manual comprising a glossary of botanical terms, analytical tables, and the natural orders"@en . . "Classification" . . "Guidebooks" . .