Cyclosorus

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Cyclosorus
Starr 061108-9784 Cyclosorus interruptus.jpg
Cyclosorus interruptus
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Thelypteridaceae
Subfamily: Thelypteridoideae
Genus: Cyclosorus
Link

Cyclosorus is a genus of ferns in the family Thelypteridaceae, subfamily Thelypteridoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] Other sources sink Cyclosorus into a very broadly defined genus Thelypteris,[2] or expand the genus to include other genera which PPG I keeps separate. Thus the online Flora of China suggests there are about 250 species compared to the two species suggested in PPG I.[3][1]

There are also fossil species known from the Eocene of South China[4] and the Quaternary of Australia.

The genus is named from the Greek, referring to the circular sori.[5]

Species[]

As of January 2020, the Checklist of Ferns and Lycophytes of the World accepted the following extant species, although noting that only two to four probably belonged in the genus sensu stricto, the rest needing in future to be distributed among other genera.[6]

  • C.Chr. & Tardieu ex Tardieu
  • Ching ex K.H.Shing
  • Ching ex K.H.Shing
  • (W.H.Wagner) W.H.Wagner
  • Cyclosorus interruptus (Willd.) H.Itô
  • Ching ex K.H.Shing
  • (C.Chr.) Ching
  • (Brause) Pic. Serm.
  • Ching ex K.H.Shing
  • Ching
  • Ching & C.F.Zhang
  • K.H.Shing & C.M.Zhang
  • (Schum.) Ching
  • Ching
  • S.Linds.
  • (Thunb.) Pic. Serm.
  • C.M.Zhang

References[]

  1. ^ Jump up to: a b 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.
  2. ^ "Cyclosorus Link", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2020-01-16
  3. ^ Lin, Youxing; Li, Zhongyang & Iwatsuki, Kunio, "Cyclosorus", in Wu, Zhengyi; Raven, Peter H. & Hong, Deyuan (eds.), Flora of China (online), eFloras.org, retrieved 2020-01-16
  4. ^ A new find of the fossil Cyclosorus from the Eocene of South China and its paleoclimatic implication. Serge V. Naugolnykh, Li Wang, Meng Han and Jian-Hua Jin; 2016, Journal of Plant Research. 129 (1), pages 3–12, doi:10.1007/s10265-015-0765-0
  5. ^ Les Robinson - Field Guide to the Native Plants of Sydney, ISBN 978-0-7318-1211-0 page 320
  6. ^ Hassler, Michael & Schmitt, Bernd (January 2020). "Cyclosorus". Checklist of Ferns and Lycophytes of the World. 8.20. Retrieved 2020-01-16.

External links[]

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