Dicksonia is a genus of tree ferns in the order Cyatheales. It is regarded as related to Cyathea, but is considered more primitive, dating back at least to the Jurassic and Cretaceous periods. The fossil record includes stems, pinnules, and spores. Tree Fern refers to any fern that grows with a trunk elevating the fronds above ground level. ... Species See text Cyathea is a genus of tree ferns, the type genus of the fern order Cyatheales. ... The Jurassic period is a major unit of the geologic timescale that extends from about 200 million years BP at the end of the Triassic to 146 million years BP at the beginning of the Cretaceous. ... The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65. ... The term spore has several different meanings in biology. ...

The genus contains 20-25 species, distributed from Mexico to Uruguay and Chile, St. Helena, New Zealand, Australia, Tasmania, Indonesia, New Guinea, and the Philippines. New Guinea has the greatest diversity, with five species. Motto: Ubertas et Fidelitas (Fertility and Faithfulness) Nickname: The Apple Isle Other Australian states and territories Capital Hobart Government Governor Premier Const. ...

The most widely cultivated species of Dicksonia is the Tasmanian Tree Fern (D. antarctica). Binomial name Dicksonia antarctica Tasmanian Tree Fern (Dicksonia antarctica) is an evergreen tree fern native to parts of Australia, namely New South Wales, Tasmania, and Victoria. ...

The genus was first described by Charles-Louis L'Heritier de Brutelle in 1788. The name honors James Dickson, a prominent nurseryman and botanist.

Species

• Dicksonia antarctica, Tasmanian Tree Fern, Soft Tree Fern. Australia, Tasmania.
• Dicksonia archboldii. New Guinea.
• Dicksonia arborescens. St. Helena.
• Dicksonia baudouini. New Caledonia.
• Dicksonia berteriana. Juan Fernandez Islands.
• Dicksonia brackenridgei. Fiji, Samoa.
• Dicksonia blumei. Indonesia, Philippines.
• Dicksonia externa. Juan Fernandez Islands.
• Dicksonia fibrosa, Woolly Tree Fern, Kuripaka or Wheki-ponga (in Maori). New Zealand.
• Dicksonia grandis. New Guinea.
• Dicksonia heironymi. New Guinea.
• Dicksonia lanata, Tuokuro. New Zealand.
• Dicksonia lanigera. New Guinea.
• Dicksonia mollis. Indonesia.
• Dicksonia sciurus. New Guinea.
• Dicksonia sellowiana. Southern Mexico through Central America and Northern South America to Bolivia and Uruguay.
• Dicksonia squarrosa, New Zealand Tree Fern, Slender Tree Fern, Rough Tree Fern, Wheki. New Zealand.
• Dicksonia stuebelii. Northern Peru.
• Dicksonia thyrsopteroides. New Caledonia.
• Dicksonia youngiae, Bristly Tree Fern. Australia.

Binomial name Dicksonia antarctica Tasmanian Tree Fern (Dicksonia antarctica) is an evergreen tree fern native to parts of Australia, namely New South Wales, Tasmania, and Victoria. ... Map of Isla Más Afuera / Selkirk Map of Isla Más a Tierra / Crusoe The Juan Fernández archipelago is located 670 km off the coast of Chile, and is composed of the volcanic islands Robinson Crusoe, located closest to the mainland at 33º 13 S, 78º 50 W... Map of Isla Más Afuera / Selkirk Map of Isla Más a Tierra / Crusoe The Juan Fernández archipelago is located 670 km off the coast of Chile, and is composed of the volcanic islands Robinson Crusoe, located closest to the mainland at 33º 13 S, 78º 50 W... Māori (or Maori) is a language spoken by the native peoples of New Zealand and the Cook Islands. ... Binomial name Dicksonia squarrosa The New Zealand Tree Fern (Dicksonia squarrosa) is a medium-sized tree fern with a tall, slender brown trunk. ...

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 link

Community: Care and propagation of Treeferns (german/english)