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Cnemidaria
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Cnemidaria
Presl, 1836
Species

See text. 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. The Cyatheaceae is a family of Fern that includes the world's tallest Tree ferns which reach heights up to 20 m

Synonyms
  • Hemitelia subg. In Scientific nomenclature, synonyms are different Scientific names used for a single Taxon. Cnemidaria (Presl) C. Christensen, 1906
  • Hemitelia R. Brown, 1810
  • Cnemidopteris Reichenbach, 1841
  • Actinophlebia Presl, 1847
  • Hemistegia Presl, 1847
  • Microstegnus Presl, 1847
  • Hemiteliella Diels, 1899

Cnemidaria is a genus of small tree ferns in the family Cyatheaceae. The order Cyatheales is a Taxonomic division of the Fern subclass Cyatheatae, which includes the tree ferns. The Cyatheaceae is a family of Fern that includes the world's tallest Tree ferns which reach heights up to 20 m They are subaborescent or marginally aborescent, growing as tall as 3. 5 m with a trunk (basically a single large stem) diameter of 7 cm.

The fronds of the Cnemidaria are typically 1-3. A frond is a large Leaf with many divisions to it and the term is typically used for the leaves of palms Ferns or Cycads A frond is 5 m long and pinnate. The rachis is generally smooth, but in some species it is slightly spiny. Rachis is also the alternate spelling of Ratchis, king of the Lombards 744-749 Presence or absence of spines has been used as a diagnostic factor to distinguish between species. Young fronds are frequently covered with scales or spines. They uncurl by circinate vernation. Vernation (from vernal, since that is when leaves "spring forth" in Temperate regions is the formation of new leaves or fronds The sori are circular and present on the underside of the pinnules away from the margins (edges). "Sori" redirects here For the commune in Italy see Sori Italy; for the villages in Azerbaijan see Soru and Sors Azerbaijan. Chromosome number is n=69.

The species of Cnemidaria are distributed in the New World tropics, from Puerto Rico and the Caribbean to Central America and south to the northern Andes and parts of southeastern Brazil. The New World is one of the names used for the non-Eurasian/non-African parts of the Earth specifically the Americas and Australia. Puerto Rico (ˌpwertoˈriko officially the Commonwealth of Puerto Rico ("Estado Libre Asociado de Puerto Rico" {{lang-en|"Associated Free State of Puerto Rico"}} The Caribbean (ˌkærəˡbiən kæ'rəbiən Cariben|Caraïben or Caraïben; Caraïbe or more commonly Antilles; Caribe is a Region consisting The Andes form the world's longest exposed Mountain range. They lie as a continuous chain of highland along the western coast of South America. |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld They prefer wet mountain areas and cloud forests in deep shade and in forest margins, clearings and disturbed sites. They are aggressive colonizers, and are quite fire resistant.

Species

Around twenty five species are recognised in the genus Cnemidaria.

References

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