Dicksonia Genus of ferns
Dicksonia is a genus of tree ferns in the order Cyatheales. It is regarded as related to Cyathea , but is considered to retain more primitive traits, dating back at least to the Jurassic and Cretaceous periods. The fossil record includes stems, pinnules, and spores .
The genus contains 20–25 species , distributed from Mexico to Argentina, Brazil, 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.
Species of Dicksonia found in cultivation include:
D. antarctica , soft tree fern[ 1]
D. fibrosa , woolly tree fern
D. squarrosa , rough or slender tree fern
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
Plants of the World Online as of As of January 2023 [ update] recognizes the following species:[ 2]
Image Scientific name Distribution
Dicksonia amorosoana Lehnert & Coritico Philippines (Mindanao)
Dicksonia antarctica Labill. , soft tree fern, Tasmanian tree fernAustralia
Dicksonia arborescens L'Hér. St. Helena
Dicksonia archboldii Copel. New Guinea
Dicksonia baudouinii E.Fourn. New Caledonia
Dicksonia berteroana (Colla) Hook. Juan Fernández Islands
Dicksonia blumei (Kunze) T.Moore Indonesia, Philippines
Dicksonia brackenridgei Mett. Fiji , Samoa
Dicksonia celebica Lehnert Sulawesi.
Dicksonia ceramica Lehnert Maluku (Seram)
Dicksonia externa Skottsb. Juan Fernández Islands
Dicksonia fibrosa Colenso , woolly tree fern, kuripaka or wheki-pongaNew Zealand
Dicksonia grandis Rosenst. New Guinea
Dicksonia herbertii W.Hill Northeastern Queensland, Australia
Dicksonia hieronymi Brause New Guinea
Dicksonia karsteniana (Klotzsch) T.Moore Mexico to Venezuela and Bolivia
Dicksonia lanata Colenso Tuokuro. New Zealand
Dicksonia lanigera Holttum New Guinea
Dicksonia lehnertiana Noben, F.Giraldo, W.D.Rodr. & A.Tejedor Colombia
Dicksonia mollis Holttum Indonesia
Dicksonia munzingeri Noben & Lehnert Solomon Islands to New Caledonia.
Dicksonia perriei Noben & Lehnert New Caledonia
Dicksonia sciurus C.Chr. New Guinea
Dicksonia sellowiana (C.Presl) Hook. , xaxim, samambaiuçu (in Portuguese )Southern Mexico through Central America and Northern South America to Bolivia and Uruguay
Dicksonia squarrosa (G.Forst.) Sw. , rough tree fern, slender tree fern, New Zealand tree fern, whekiNew Zealand
Dicksonia stuebelii Hieron. Northern Peru
Dicksonia thyrsopteroides Mett. New Caledonia
Dicksonia timorensis Adjie Lesser Sunda Islands (Timor)
Dicksonia utteridgei Lehnert & Cámara-Leret New Guinea
Dicksonia youngiae C.Moore ex Baker , bristly tree fernAustralia
Phylogeny
Phylogeny of Dicksonia [ 3] [ 4]
Other species include:
References
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.