Gymnosphaera is a genus of tree ferns in family Cyatheaceae.
| Gymnosphaera | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Gymnosphaera Blume |
| Type species | |
| Gymnosphaera glabra | |
| Species | |
|
See text. | |
| Synonyms | |
Taxonomy edit
The genus was originally described by Carl Ludwig Blume in 1828.[1] It was frequently treated by later authors as a synonym of Cyathea or Alsophila.
In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Gymnosphaera was left as a synonym of Alsophila, as evidence to support its reliable separation was lacking.[2] More recently, Shi-Yong Dong and collaborators proposed the revival and recircumscription of the genus based on additional phylogenetic evidence,[3] an act subsequently accepted by other tree fern workers.[4]
Phylogeny edit
As of January 2023[update], the following species are accepted in the genus as currently circumscribed by the Checklist of Ferns and Lycophytes of the World:[5]
Phylogeny of Gymnosphaera[6][7]
| Gymnosphaera |
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Other species include:
- Gymnosphaera alticola Tardieu
- Gymnosphaera atropurpurea (Copel.) Copel.
- Gymnosphaera boivinii (Mett. ex Ettingsh.) Tardieu
- Gymnosphaera bonii (Christ) S.Y.Dong
- Gymnosphaera commutata (Mett.) S.Y.Dong
- Gymnosphaera henryi (Baker) S.R.Ghosh
- Gymnosphaera mildbraedii (Brause) S.Y.Dong
- Gymnosphaera nicklesii Tardieu & F.Ballard ex Tardieu
- Gymnosphaera ramispinoides (M.Kato) S.Y.Dong
- Gymnosphaera rubella (Holttum) S.Y.Dong
References edit
- ^ Blume, Carl Ludwig (1828). Enumeratio plantarum Javae. Vol. 2. p. 242.
- ^ 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.
- ^ Dong, Shi-Yong; Zuo, Zheng-Yu (2018). "On the Recognition of Gymnosphaera As a Distinct Genus in Cyatheaceae". Annals of the Missouri Botanical Garden. 103 (1): 1–23. doi:10.3417/2017049. S2CID 90852235.
- ^ Loiseau, Oriane; Weigand, Anna; Noben, Sarah; Rolland, Jonathan; Silvestro, Daniele; Kessler, Michael; Lehnert, Marcus; Salamin, Nicolas (2020). "Slowly but surely: gradual diversification and phenotypic evolution in the hyper-diverse tree fern family Cyatheaceae". Annals of Botany. 125 (1): 93–103. doi:10.1093/aob/mcz145. PMC 6948215. PMID 31562744.
- ^ Hassler, Michael (19 January 2023). "Gymnosphaera". Checklist of Ferns and Lycophytes of the World. 14.1. Retrieved January 21, 2023.
- ^ Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13: 909768. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
- ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.5.0 [GenBank release 256]. 2023. Retrieved 17 August 2023.