Gymnosphaera atropurpurea, synonymsAlsophila atropurpurea and Cyathea atropurpurea,[1] is a species of tree fern native to the islands of Luzon, Mindanao, Leyte and Mindanao in the Philippines, where it grows in forest at above 1000 m. The erect trunk is slender and may be up to 3 m tall. Fronds are bipinnate and 1–2 m long. Characteristically of this species, the final pair of pinnae are usually reduced and occur towards the base of the stipe. These, along with the stipe bases, are persistent and retained around the trunk long after withering. The stipe itself is dark and covered with scales, which are either small, dull and brown or large, dark and glossy. Sori occur near the midvein of fertile pinnules and lack indusia. Fertile pinnules are notably smaller than sterile ones.[2]
G. atropurpurea is very similar to Gymnosphaera ramispina and may in fact represent the same species. It differs only in its smaller pinnae and pinnules, as well as other frond details.[2]
Referencesedit
^ abHassler, Michael (1994–2023). World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 18.3. Retrieved 2023-12-26.
^ abLarge, Mark F. & Braggins, John E. (2004). Tree Ferns. Timber Press. p. 100. ISBN978-0-88192-630-9.
January 01, 1970
gymnosphaera, atropurpurea, synonyms, alsophila, atropurpurea, cyathea, atropurpurea, species, tree, fern, native, islands, luzon, mindanao, leyte, mindanao, philippines, where, grows, forest, above, 1000, erect, trunk, slender, tall, fronds, bipinnate, long, . Gymnosphaera atropurpurea synonyms Alsophila atropurpurea and Cyathea atropurpurea 1 is a species of tree fern native to the islands of Luzon Mindanao Leyte and Mindanao in the Philippines where it grows in forest at above 1000 m The erect trunk is slender and may be up to 3 m tall Fronds are bipinnate and 1 2 m long Characteristically of this species the final pair of pinnae are usually reduced and occur towards the base of the stipe These along with the stipe bases are persistent and retained around the trunk long after withering The stipe itself is dark and covered with scales which are either small dull and brown or large dark and glossy Sori occur near the midvein of fertile pinnules and lack indusia Fertile pinnules are notably smaller than sterile ones 2 Gymnosphaera atropurpurea Scientific classification Kingdom Plantae Clade Tracheophytes Division Polypodiophyta Class Polypodiopsida Order Cyatheales Family Cyatheaceae Genus Gymnosphaera Species G atropurpurea Binomial name Gymnosphaera atropurpurea Copel Copel Synonyms 1 Alsophila atropurpurea Copel C Chr Cyathea atropurpurea Copel G atropurpurea is very similar to Gymnosphaera ramispina and may in fact represent the same species It differs only in its smaller pinnae and pinnules as well as other frond details 2 References edit a b Hassler Michael 1994 2023 World Ferns Synonymic Checklist and Distribution of Ferns and Lycophytes of the World Version 18 3 Retrieved 2023 12 26 a b Large Mark F amp Braggins John E 2004 Tree Ferns Timber Press p 100 ISBN 978 0 88192 630 9 Retrieved from https en wikipedia org w index php title Gymnosphaera atropurpurea amp oldid 1191928795, wikipedia, wiki, book, books, library,
