is a Dicksonia genus of tree ferns in the order Cyatheales. It is regarded as related to , but is considered more primitive, dating back at least to the Cyathea Jurassic and Cretaceous periods. The fossil record includes stems, pinnules, and spores.
The genus contains 20-25
species, distributed from Mexico to Argentina, Uruguay and Chile, St. Helena, New Zealand, New Caledonia, Australia, Indonesia, New Guinea, and the Philippines. New Guinea has the greatest diversity, with five species.
An easily cultivated species of
Dicksonia is , the soft tree fern. D. antarctica [1 ]
The genus was first described by
Charles Louis L'Héritier de Brutelle in 1788. The name honors James Dickson, a prominent nurseryman and botanist. [1 ]
Species [ edit ]
, Soft Tree Fern, Tasmanian Tree Fern. Australia. Dicksonia antarctica
, Dicksonia arborescens St. Helena (type species)
, New Guinea Dicksonia archboldii
, Dicksonia baudouini New Caledonia
, Dicksonia berteriana Juan Fernández Islands
, Indonesia, Philippines Dicksonia blumei
, Dicksonia brackenridgei Fiji, Samoa
, Dicksonia externa Juan Fernández Islands
, Woolly Tree Fern, Kuripaka or Wheki-ponga. New Zealand. Dicksonia fibrosa
, New Guinea Dicksonia grandis
, Northeastern Queensland, Australia Dicksonia herbertii
, New Guinea. Dicksonia hieronymi
, Tuokuro. New Zealand. Dicksonia lanata
, New Guinea. Dicksonia lanigera
, Indonesia. Dicksonia mollis
, New Guinea. Dicksonia sciurus
, Xaxim, Samambaiuçu (in Dicksonia sellowiana Portuguese). Southern Mexico through Central America and Northern South America to Bolivia and Uruguay.
, Rough Tree Fern, Slender Tree Fern, New Zealand Tree Fern, Wheki. New Zealand. Dicksonia squarrosa
, Northern Dicksonia steubelii Peru.
, Dicksonia thyrsopteroides New Caledonia.
, Bristly Tree Fern. Australia. Dicksonia youngiae
References [ edit ]
^ a b Dicksonia antarctica – the soft tree fern. Australian National Botanic Gardens. 2008
Large, M.F. and J.E. Braggins
Tree Ferns. Timber Press, Inc. (2004). Lobin, Wolfram. List of the American Dicksonia Species. Scientific Authority of Germany, Bonn 2001.
External links [ edit ]