New pteridophyte species and combinations from the Marquesas Islands, French Polynesia

By

Lorence, David
Wagner, Warren Lambert
Wood, Kenneth Richard, 1953-
Smith, Alan R., 1943-

Type

Article

Date of Publication

2011

Original Publication

International Journal of Myriapodology

Volume

4

Pages

5-51

Subjects

Blechnum , Cyclosorus , Dryopteris , French Polynesia , Marquesas Islands , Polystichum , pteridophytes , Pteris , Thelypteris

Contributed by

Pensoft Publishers

Language

English

Published by

Leiden Brill [2008]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.4.1602

 

Abstract

Intensive botanical exploration of the Marquesas Islands (French Polynesia) for the Vascular Flora of the Marquesas Islands and Flore de la Polynésie française projects has resulted in numerous additional new collections from these islands. Study of these collections has brought to light 11 new species of pteridophytes (ferns and lycophytes) which are described herein: Blechnum pacificum Lorence & A. R. Sm., sp. nov., Cyclosorus castaneus  A. R. Sm. & Lorence, sp. nov.,  Cyclosorus florencei A. R. Sm. & Lorence, sp. nov., Dryopteris macropholis Lorence & W. L. Wagner, sp. nov., Dryopteris sweetorum Lorence & W. L. Wagner, sp. nov., Polystichum kenwoodii Lorence & W. L. Wagner, sp. nov., Polystichum uahukaense Lorence & W. L. Wagner, sp. nov., Pteris hivaoaensis Lorence & K. Wood, sp. nov., Pteris marquesensis Lorence & K. R. Wood, sp. nov., Pteris tahuataensis Lorence & K. R. Wood, sp. nov., and Thelypteris marquesensis Lorence & K. R. Wood, sp. nov. One new combination is made: Cyclosorus marquesicus (Holttum) Lorence & A. R. Sm., comb. nov. (based on Plesioneuron marquesicum Holttum).  An analysis of the conservation status of these new Marquesas Islands taxa reveals they are in need of inclusion in the IUCN Red List with conservation status ranging from vulnerable (one species), and endangered (four species), to critically endangered (five species).