Review of Caucasian species of Rhynchocorys (Scrophulariaceae)

摘要

A taxonomical account of four Caucasian species of Rhynchocorys (Scrophulariaceae), instead of two accepted by B. Schischkin (1955), is presented with a key for their determination, synonymy and distribution ranges according to the scheme worked outfor the Conspectus of Caucasian Flora (Menitsky, 1991).