Rhachidosorus is a genus of ferns in the order Polypodiales.[2] It is the only genus in the family Rhachidosoraceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[3] Alternatively, the genus may be placed in the subfamily Rhachidosoroideae of a more broadly defined family Aspleniaceae,[1] the family placement used in Plants of the World Online as of November 2019[update].[4]
| Rhachidosorus | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Rhachidosoraceae X.C.Zhang |
| Genus: | Rhachidosorus Ching |
| Species | |
| Synonyms[1] | |
| |
Species
editThe genus was described by Ren Chang Ching in 1964, with about 7 species in eastern and southeastern Asia, including Japan, the Philippines, and Sumatra.[5] As of November 2019[update], Plants of the World Online accepted the following species:[4]
- Rhachidosorus blotianus Ching – China, Vietnam
- Rhachidosorus chrysocarpus (Alderw.) Ching
- Rhachidosorus consimilis Ching – China (Guizhou, Sichuan, Yunnan)
- Rhachidosorus mesosorus (Makino) Ching – China, Japan, South Korea
- Rhachidosorus pulcher (Tagawa) Ching – Taiwan, Yunnan
- Rhachidosorus siamensis S.Linds.
- Rhachidosorus stramineus (Copel.) Ching
- Rhachidosorus truncatus Ching – China (Guangxi, Guizhou, Yunnan)
Phylogenic relationships
editThe following diagram for the eupolypods II, based on Lehtonen, 2011,[6] and Rothfels & al., 2012,[7] shows a likely phylogenic relationship between the Rhachidosoraceae and the other families of the eupolypods II clade.
References
edit- ^ a b Christenhusz, Maarten J.M. & Chase, Mark W. (2014). "Trends and concepts in fern classification". Annals of Botany. 113 (9): 571–594. doi:10.1093/aob/mct299. PMC 3936591. PMID 24532607.
- ^ Alan R. Smith; Kathleen M. Pryer; Eric Schuettpelz; Petra Korall; Harald Schneider & Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. JSTOR 25065646.
- ^ PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
- ^ a b "Rhachidosorus Ching". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-11-27.
- ^ Maarten J. M. Christenhusz; Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.
- ^ Samuli Lehtonen (2011). "Towards Resolving the Complete Fern Tree of Life" (PDF). PLOS ONE. 6 (10): e24851. Bibcode:2011PLoSO...624851L. doi:10.1371/journal.pone.0024851. PMC 3192703. PMID 22022365.
- ^ Carl J. Rothfels; Anders Larsson; Li-Yaung Kuo; Petra Korall; Wen- Liang Chiou; Kathleen M. Pryer (2012). "Overcoming Deep Roots, Fast Rates, and Short Internodes to Resolve the Ancient Rapid Radiation of Eupolypod II Ferns". Systematic Biology. 61 (1): 490–509. doi:10.1093/sysbio/sys001. PMID 22223449.
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