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

Thien Tam Luong; Peter H Hovenkamp; Marc S M Sosef

doi:10.3897/phytokeys.53.4955

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

PhytoKeys. 2015 Jul 21:(53):39-71. doi: 10.3897/phytokeys.53.4955. eCollection 2015.

Authors

Thien Tam Luong¹, Peter H Hovenkamp², Marc S M Sosef³

Affiliations

¹ Department of Ecology - Evolutionary Biology, Viet Nam National University Ho Chi Minh city (VNUHCM) - University of Science. 227 Nguyen Van Cu, Ho Chi Minh City, Vietnam ; Naturalis Biodiversity Center, section Botany. PO Box 9517, 2300 RA Leiden, The Netherlands.
² Naturalis Biodiversity Center, section Botany. PO Box 9517, 2300 RA Leiden, The Netherlands.
³ Botanic Garden Meise, Nieuwelaan 38, 1860 Meise, Belgium.

Abstract

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 (Orthiopterissamoensis), and five varieties, of which two are newly described (Orthiopteriscampyluravar.insularis and Orthiopteriscampyluravar.laxa). Orthiopterisacuminata, Orthiopteriscaudata, Orthiopterisminor and Orthiopteriskingii are all reduced to varieties of Orthiopteriscampylura.

Keywords: Madagascar; Malesia; Melanesia; Orthiopteris; Polynesia; Saccolomataceae; new species; new varieties; taxonomy.