Adiantum lianxianense
Adiantum lianxianense | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Family: | Pteridaceae |
Genus: | Adiantum |
Species: | †A. lianxianense
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Binomial name | |
†Adiantum lianxianense Ching & Y.X.Lin in Y.X.Lin
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Location of Guangdong |
Adiantum lianxianense is a species of
Taxonomy
The species was first described as distinct by Ren-Chang Ching and You-Xing Lin in 1980. The type specimen was collected by Rev. Benjamin Couch Henry in Lianzhou (Lianxian) in 1881, but was initially determined to be Adiantum gravesii. Ching and Lin distinguished A. lianxianense from that species by its more soft and delicate habit, its slender, hairlike stalks, smaller pinnules obovate or obovate-oblong in shape (rather than broadly ovate or obovate-triangular), and a long stalk 1.5 millimetres (0.059 in) wide.[2]
A 2012 paper purporting to show that A. lianxianense was genetically nested within A. gravesii led the authors to suggest that, due to their genetic and morphological similarity, A. lianxianense should not be treated as a distinct species from A. gravesii.[3] However, this specimen (J.-M. Lu 441, from Guangdong)[3] was subsequently re-identified as A. mariesii.
Distribution and habitat
Its natural
Conservation
The IUCN Red List assessment for A. lianxianense in 2004 declared it to be known only from Guangdong and extinct due to
Notes and references
References
- ^ a b c China Plant Specialist Group 2004.
- ^ Lin 1980.
- ^ a b Lu et al. 2012.
- ^ Jiang et al. 2011.
- ^ Ebihara et al. 2012, p. 100.
Works cited
- Ebihara, Atsushi; Fraser-Jenkins, Christopher Roy; Parris, Barbara S.; Zhang, Xian-Chun; Yang, Yue-Hong; Chiou, Wen-Liang; Chang, Ho-Ming; Lindsay, Stuart; Middleton, David; Kato, Masahiro; Praptosuwiryo, Titien Ngatinem; Amoroso, Victor B.; Barcelona, Julie F.; Ranil, Rajapaksha Haddokara Gedara; Park, Chan-Ho; Murakami, Noriaki; Hoya, Akihiko (2012). "Rare and Threatened Pteridophytes of Asia 1. An Enumeration of Narrowly Distributed Taxa" (PDF). Bulletin of the National Museum of Nature and Science, Series B. 38 (3): 93–119.
- China Plant Specialist Group (2004). "Adiantum lianxianense". .
- Jiang, Ri-Hong; Chang, Yan-Fen; Yuan, Hu; Yan, Yue-Hong (2011). "New records for ferns from Guangxi, China". Guihaia (2011–04).
- Lin, You-Xin (1980). "New taxa of Adiantum L. in China". Acta Phytotaxonomica Sinica. 18 (1): 101–105.
- Lu, Jin-Mei; Wen, Jun; Lutz, Sue; Wang, Yi-Ping; Li, De-Zhu (2012). "Phylogenetic relationships of Chinese Adiantum based on five plastid markers". Journal of Plant Research. 125 (2): 237–249. S2CID 7001083.