Cyathea alderwereltii

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Cyathea alderwereltii
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Order: Cyatheales
Family: Cyatheaceae
Genus: Cyathea
Subgenus: Cyathea
Section: Alsophila
Species: C. alderwereltii
Binomial name
Cyathea alderwereltii
Copeland, 1909
Synonyms
  • Alsophila alderwereltii (Copeland) Tryon, 1970
  • Alsophila spinifera Alderwerelt van Rosenburgh, 1922
  • Cyathea spinifera (Alderwerelt van Rosenburgh) Domin, 1930
  • Cyathea horridipes Domin, 1929
  • Hemitelia sumatrana Alderwerelt van Rosenburgh

Cyathea alderwereltii is a species of tree fern endemic to Mount Sago in central Sumatra, where it is nevertheless abundant and grows in forest at an altitude of 1000-1500 m. It has an erect trunch which may be 4 m tall or more. Fronds are bi- or tripinnate and 1-2 m long. The stipe of this species is spiny at the base and covered with scattered scales that are dark brown, glossy, and have a narrow paler margin. Sori are produced near the fertile pinnule midvein and are covered by small, brown scale-like indusia.

C. alderwereltii is named after Cornelis Rogier Willem Carel van Alderwerelt van Rosenburgh (1863-1936), a Dutch pteridologist who worked extensively in the Sunda region.

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