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 Dicksonia antarctica
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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 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 Charles Louis L'Héritier de Brutelle (15 June 1746 - 18 August 1800 was an 18th century French botanist and magistrate |
Dicksonia is a genus of tree ferns in the order Cyatheales. The order Cyatheales is a Taxonomic division of the Fern subclass Cyatheatae, which includes the tree ferns. It is regarded as related to Cyathea, but is considered more primitive, dating back at least to the Jurassic and Cretaceous periods. Cyathea is a Genus of Tree ferns the type genus of the Fern order Cyatheales. 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 The Cretaceous (kriːˈteɪʃəs, usually abbreviated 'K' for its German translation "Kreide" is a geologic period and system, reaching from the end of The fossil record includes stems, pinnules, and spores. In Biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions
The genus contains 20-25 species, distributed from Mexico to Uruguay and Chile, St. Helena, New Zealand, Australia, Indonesia, New Guinea, and the Philippines. The United Mexican States ( or commonly Mexico (ˈmɛksɪkoʊ () is a federal constitutional Republic in North America. Uruguay.(official full name in República Oriental del Uruguay;, Oriental Republic of Uruguay) is a country located in the southeastern part of South America Chile, officially the Republic of Chile ( Spanish:) is a country in South America occupying a long and narrow Coastal strip wedged between the Saint Helena (pronounced saint he-LEE-na) named after St Helena of Constantinople, is an island of volcanic origin and a British overseas territory New Zealand is an Island country in the south-western Pacific Ocean comprising two main landmasses (the North Island and the South Island For a topic outline on this subject see List of basic Australia topics. The Republic of Indonesia ( (Republik Indonesia is a Country in Southeast Asia. New Guinea, located just north of Australia, is the world's second largest island, having become separated from the Australian mainland when the area now known The Philippines ( Filipino: Pilipinas, officially known as the Republic of the Philippines (fil ''Republika ng Pilipinas'' RP New Guinea has the greatest diversity, with five species.
The most widely cultivated species of Dicksonia is the Soft Tree Fern (D. Dicksonia antarctica, known as the Soft Tree Fern Man Fern or Tasmanian Tree Fern is an evergreen Tree fern native to parts of Australia, namely Antarctica).
The genus was first described by Charles Louis L'Héritier de Brutelle in 1788. Charles Louis L'Héritier de Brutelle (15 June 1746 - 18 August 1800 was an 18th century French botanist and magistrate The name honors James Dickson, a prominent nurseryman and botanist.
Species
- Dicksonia antarctica, Soft Tree Fern, Tasmanian Tree Fern. Dicksonia antarctica, known as the Soft Tree Fern Man Fern or Tasmanian Tree Fern is an evergreen Tree fern native to parts of Australia, namely Australia.
- Dicksonia arborescens, St. Helena
- Dicksonia archboldii, New Guinea
- Dicksonia baudouini, New Caledonia
- Dicksonia berteriana, Juan Fernandez Islands
- Dicksonia blumei, Indonesia, Philippines
- Dicksonia brackenridgei, Fiji, Samoa
- Dicksonia externa, Juan Fernandez Islands
- Dicksonia fibrosa, Woolly Tree Fern, Kuripaka or Wheki-ponga (in Maori). The St Helena Tree Fern ( Dicksonia arborescens) is a characteristic plant of the "tree fern thicket" vegetation of the highest parts of the central ridge of the Saint Helena (pronounced saint he-LEE-na) named after St Helena of Constantinople, is an island of volcanic origin and a British overseas territory For the former North American fur-trading district see New Caledonia (Canada, and for the Scottish colony in Panama see Darien scheme. The Juan Fernández Islands is a sparsely inhabited island group reliant on tourism and fishing in the South Pacific Ocean, situated about 667 km off the coast of Chile Fiji (Matanitu ko Viti फ़िजी officially the Republic of the Fiji Islands (Matanitu Tu-Vaka-i-koya ko Viti फ़िजी द्वीप समूह गणराज्य Samoa, officially the Independent State of Samoa, is a country governing the western part of the Samoan Islands Archipelago in the South Pacific Ocean The Juan Fernández Islands is a sparsely inhabited island group reliant on tourism and fishing in the South Pacific Ocean, situated about 667 km off the coast of Chile New Zealand.
- Dicksonia grandis, New Guinea
- Dicksonia herbertii, Northeastern Queensland, Australia
- Dicksonia hieronymi, New Guinea.
- Dicksonia lanata, Tuokuro. New Zealand.
- Dicksonia lanigera, New Guinea.
- Dicksonia mollis, Indonesia.
- Dicksonia sciurus, New Guinea.
- Dicksonia sellowiana, Xaxim, Samambaiuçu (in Portuguese). Portuguese ( or língua portuguesa) is a Romance language that originated in what is now Galicia (Spain and northern Portugal. Southern Mexico through Central America and Northern South America to Bolivia and Uruguay. The Republic of Bolivia (República de Bolivia) named after Simón Bolívar, is a Landlocked country in central South America.
- Dicksonia squarrosa, New Zealand Tree Fern, Slender Tree Fern, Rough Tree Fern, Wheki. New Zealand.
- Dicksonia steubelii, Northern Peru. Peru (Perú Piruw Piruw officially the Republic of Peru ( reˈpuβlika del peˈɾu is a country in western South America.
- Dicksonia thyrsopteroides, New Caledonia. For the former North American fur-trading district see New Caledonia (Canada, and for the Scottish colony in Panama see Darien scheme.
- Dicksonia youngiae, Bristly Tree Fern. Australia.
References
- Braggins, John E. and Large, Mark F. Tree Ferns. Timber Press, Inc. (2004).
- Lobin, Wolfram. List of the American Dicksonia Species. Scientific Authority of Germany, Bonn 2001.
External links
- Community: Care and propagation of Treeferns (German/English)
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