Biology:Alsophila insulana

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Short description: Species of fern

Alsophila insulana
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Alsophila
Species:
A. insulana
Binomial name
Alsophila insulana
(Holttum) R.M.Tryon[1]
Synonyms[1]
  • Cyathea insulana Holttum

Alsophila insulana, synonym Cyathea insulana,[1] is a species of tree fern native to New Guinea, where it grows in mossy forest and ravines at an altitude of 750–1600 m. The trunk of this species is erect, 8–10 m tall, and 14 cm in diameter. Fronds may be bi- or tripinnate and approximately 3 m in length. They form a spreading crown. The stipe bears thick spines as well as scales. These scales are either small, pale brown, with a short fringe, or large and glossy brown, with fragile edges. Sori are borne near the fertile pinnule midvein. They are protected by thin, pale indusia.[2]

The specific epithet insulana, from Latin insula meaning "island", refers to New Guinea.[2]

References

  1. 1.0 1.1 1.2 Hassler, Michael; Schmitt, Bernd (June 2019), "Alsophila insulana", Checklist of Ferns and Lycophytes of the World, 8, https://worldplants.webarchiv.kit.edu/ferns/, retrieved 2019-08-26 
  2. 2.0 2.1 Large, Mark F.; Braggins, John E. (2004), Tree Ferns, Timber Press, p. 147, ISBN 978-0-88192-630-9, https://archive.org/details/treeferns00mark/page/147 

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