Revision of the fern genus Orthiopteris (Saccolomataceae) in Malesia and adjacent regions

摘要

A taxonomic revision of the Old-World representatives of the fern genus Orthiopteris is presented. We recognize eight species, one of which is newly described (Orthiopteris samoensis), and five varieties, of which two are newly described (Orthiopteris campylura var. insularis and Orthiopteris campylura var. laxa). Orthiopteris acuminata, Orthiopteris caudata, Orthiopteris minor and Orthiopteris kingii are all reduced to varieties of Orthiopteris campylura.