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Issue: Vol. 516 No. 3: 26 August 2021
Type: Article
Published: 2021-08-26
DOI: 10.11646/phytotaxa.516.3.6
Page range: 275–282
Abstract views: 222
PDF downloaded: 3

Angiopteris sugongii (Marattiaceae), a new diploid species with transitional morphology between Angiopteris (sen. str.) and Archangiopteris

Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming 650224, China, College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, Yunnan, China, Shenzhen Key Laboratory for Orchid Conservation and Utilization, National Orchid Conservation Center of China and the Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, Guangdong, China
Hekou Branch of Management and Protection Bureau of Daweishan National Nature Reserve, Hekou 661399, Yunnan, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, National Orchid Conservation Center of China and the Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, Guangdong, China
College of Forestry, Southwest Forestry University, Kunming 650224, Yunnan, China
Shenzhen Key Laboratory for Orchid Conservation and Utilization, National Orchid Conservation Center of China and the Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, Guangdong, China
College of life Science, Southwest Forestry University, Kunming 650224, Yunnan, China
Shenzhen Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen 518004, Guangdong, China
Hekou Branch of Management and Protection Bureau of Daweishan National Nature Reserve, Hekou 661399, Yunnan, China
Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming 650224, China, College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, Yunnan, China
Green Development Institute, Southwest Forestry University, Kunming 650224, Yunnan, China
Polypodiophyta taxonomy transitional species Daweishan marattioid ferns

Abstract

A new diploid species of marattioid ferns, Angiopteris sugongii Gui L. Zhang, J.Y. Xiang & Ting Wang (Marattiaceae), with ascending rhizomes, once pinnate to bipinnate laminae and marginal long sori, is identified and characterized from Southeast Yunnan, China. The distinctiveness between the new species and three relatives, A. itoi, A. bipinnata and A. sparsisora, are presented in detail, and a key to 11 species with once pinnate, or once pinnate to bipinnate laminae of Angiopteris in China is provided. Currently, there are three populations with 30 individuals in Daweishan National Nature Reserve and we suggest A. sugongii should be categorized as Critically Endangered (CR) species according to the criteria of IUCN. The discovery of this new species not only provides an important evidence for understanding the evolution of Angiopteris (sen. lat.), but also gives us a key insight into origin of species in the genus.

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How to Cite

Wang, T., Zhang, G.-L., Yan, Y.-H., Sun, D.-K., Shu, J.-P., Duan, J.-Q., Zhao, G.-H., Zhang, G.-S., Xiang, J.-Y. & Wang, K.-L. (2021)

Angiopteris sugongii (Marattiaceae), a new diploid species with transitional morphology between Angiopteris (sen. str.) and Archangiopteris

. Phytotaxa 516 (3): 275–282. https://doi.org/10.11646/phytotaxa.516.3.6