Reference:Robson1977a


Verbatim text: Robson, N. K. B. 1977. Studies in the genus Hypericum L. (Guttiferae) 1. Infrageneric classification. Bull. Brit. Mus. (Nat. Hist.), Bot. 5: 283–355.
Author: Robson, N.K.B.
Year: 1977
Title: Studies in the genus Hypericum L. (Guttiferae) 1. Infrageneric classification
Journal: Bull. Brit. Mus. (Nat. Hist.), Bot
Volume: 5
Pages: 283–355