Hymenasplenium hovenkampii (Aspleniaceae), a new bipinnatisect fern species from Lesser Sunda Islands of Indonesia

KE-WANG XU; YU-XUAN LIU; YI-FEI CHEN; LI-BING ZHANG

doi:10.11646/phytotaxa.595.1.10

Issue: Vol. 595 No. 1: 3 May 2023

Type: Article

Published: 2023-05-03

DOI: 10.11646/phytotaxa.595.1.10

Page range: 120-124

Abstract views: 86

PDF downloaded: 3

Hymenasplenium hovenkampii (Aspleniaceae), a new bipinnatisect fern species from Lesser Sunda Islands of Indonesia

KE-WANG XU⁺⁻
YU-XUAN LIU⁺⁻
YI-FEI CHEN⁺⁻
LI-BING ZHANG⁺⁻

Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 510275, China.

Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A.; Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China.

bipinnatisect laminae Pacific islands fern diversity Pteridophytes

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Abstract

A new species of Hymenasplenium (Aspleniaceae), H. hovenkampii, from the Lesser Sunda Islands of Indonesia is described. This species was preliminarily identified as H. unilaterale, but can be easily distinguished by its bipinnatisect laminae (vs. 1-pinnate lamina) and reddish brown (vs. dark brown to black) stipes and rachises. In fact, all species known so far in the genus have simple or 1-pinnate laminae, whereas the new species is the only one in the genus with bipinnatisect laminae.

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