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The Cyatheaceae is a family of fern that includes the world's tallest tree ferns, which reach heights up to 20 m. Plants are living Organisms belonging to the kingdom Plantae. A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta The Pteridopsida is a class of Plants in the Division Pteridophyta that includes all the Leptosporangiate ferns In the recent 2006 classification by The order Cyatheales is a Taxonomic division of the Fern subclass Cyatheatae, which includes the tree ferns. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic Cnemidaria is a genus of small Tree ferns in the family Cyatheaceae. Cyathea is a Genus of Tree ferns the type genus of the Fern order Cyatheales. × Cyathidaria is an Intergeneric hybrid of Cyathea and Cnemidaria Tree ferns Species In Scientific nomenclature, synonyms are different Scientific names used for a single Taxon. A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta The order Cyatheales is a Taxonomic division of the Fern subclass Cyatheatae, which includes the tree ferns. They are also very ancient plants, appearing in the fossil record in the late Jurassic, though the modern genera likely appeared in the Tertiary. FOSSIL is a standard protocol for allowing serial communication for Telecommunications programs under the DOS Operating system. The Jurassic is a geologic period and system that extends from about Ma (million years ago to Ma that is from the end of the Triassic to the beginning A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic The chuprichondira geological time interval covers roughly the time span between the demise of the non- avian Dinosaurs and beginning of the most recent Ice Age, approximately
All Cyatheaceae have scales instead of hairs, which are common in members of the family Dicksoniaceae. The Dicksoniaceae is a family of tropical subtropical and warm temperate Ferns Most of the 5-6 genera in the family are terrestrial ferns or have Their fronds are also very large, some of the largest in the plant kingdom. Some species have fronds reaching 3-4 m in length, and have a final crown width of some 6 m. The sori (spore clusters) also occur away from the margins of the pinnules (individual leaves), and are elongate or rounded. "Sori" redirects here For the commune in Italy see Sori Italy; for the villages in Azerbaijan see Soru and Sors Azerbaijan. In Botany, a leaf is an above-ground Plant organ specialized for Photosynthesis.
Most Cyatheaceae are terrestrial, with one sometimes being epiphytic and others having a creeping habit, but these are exceptions to the family norm. An epiphyte is an organism that grows upon or attaches to a living plant
Since the exact number of species is not known, classification of the Cyatheaceae has had a long and controversial history, and is still undergoing revision. Three tentative clades have been developed: Alsophila, Cyathea, and Sphaeropteris. A clade is a taxonomic group comprising a single Common ancestor and all the descendants of that ancestor These are frequently used as genus names. There is one additional genus, Cnemidaria. It is likely that in time the Cyathea will be split into additional genera.
References
- Braggins, John E. and Large, Mark F. Tree Ferns. Timber Press (2004). ISBN 0-88192-630-2
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