Author: Christensen, Carl
Title: Revision of the American Species of Dryopteris of the Group D. Opposita
Description: Kobenhavn, Andr.Fred.Host & Son, 1907. orig. wrappers. 27x21cm, (87) pp. Series: Det Kgl. Danske Videnskabernes Selskab, Naturvidensk. og Mathem. Skrifter, 7. Raekke, IV, 4.. Textual drawings. Unopened, VG. ¶ Pagination runs 249 - 336.

Keywords: Botany, Ferns, Dryopteris, Pteridology, Filicales, Pteridophyta, , ,