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Cyathea affinis

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Cyathea affinis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Cyathea
Species:
C. affinis
Binomial name
Cyathea affinis
(G.Forst.) Sw.[1]
Synonyms[1]
  • Alsophila tahitensis Brack.
  • Amphicosmia tahitensis (Brack.) Moore
  • Cyathea bisulca Schkuhr
  • Cyathea rapensis Copel.
  • Cyathea tahitensis (Brack.) Copel.
  • Cyathea thurstonii Baker
  • Hemitelia durvillei Mett. ex Kuhn
  • Hemitelia raiateensis J.W.Moore
  • Hemitelia tahitensis (Brack.) Mett.
  • Polypodium affine G.Forst.

Cyathea affinis is a variable species of tree fern native to Fiji, Samoa, the Cook Islands, Austral Islands, Tahiti, and the Marquesas Islands. The trunk of this plant is erect and 2–6 m tall. Fronds are bipinnate and 2–3 m in length. The rachis and stipe are pale to brown in colour, or flushed with red towards the pinnule rachis. The stipe is sparsely covered in narrow basal scales, which are pale to dark and have broad fragile edges. Characteristically of this species, the lowest one or two pairs of pinnae may be slightly reduced and occur towards the base of the stipe. Sori are located near the pinnule midvein and are partially or fully covered by indusia, which open towards the pinnule margin.[2]

Large and Braggins (2004) note that there is much variation between individual plants of C. affinis in terms of frond and scale details and Cyathea tahitensis, which is usually regarded as synonymous, may in fact represent a separate species.[2]

Cyathea affinis (G.Forst.) Sw. is not to be confused with Cyathea affinis Brack, a synonym of Sphaeropteris propinqua,[3] nor Cyathea affinis A.Rojas, a synonym of Cyathea retanae.[1]

Young shoots of C. affinis are eaten in the Marquesas Islands.[2]

References

  1. ^ a b c Hassler, Michael (2004–2021), "Genus Cyathea J.E.Sm.", World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.3, retrieved 25 July 2021
  2. ^ a b c Large, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 89. ISBN 978-0-88192-630-9.
  3. ^ Hassler, Michael (2004–2021), "Genus Sphaeropteris Bernh.", World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.3, retrieved 25 July 2021


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