Dicksoniaceae 1893868 225682938 2008-07-14T21:51:26Z 83.223.165.225 {{Taxobox | name = Dicksoniaceae | image = Cibotium-menziesii.jpg | image_width = 250px | image_caption = ''Cibotium menziesii'' | regnum = [[Plant]]ae | divisio = [[Pteridophyta]] | classis = [[Pteridopsida]] | ordo = [[Cyatheales]] | familia = '''Dicksoniaceae''' | familia_authority = Bower, ''nom. cons''. | subdivision_ranks = [[Genus|Genera]] | subdivision = ''[[Calochlaena]]''<br> ''[[Dicksonia]]''<br> ''[[Lophosoria]]''<br> †''[[Conantiopteris]]''<br> †''[[Coniopteris]]''<br> †''[[Erboracia]]''<br> †''[[Lophosoriorhachis]]''<br> †''[[Nishidicaulis]]''<br> †''[[Onychiopsis]]'' }} The '''Dicksoniaceae''' is a [[family (biology)|family]] of tropical, subtropical and warm temperate [[fern]]s. Most of the 5-6 [[genus|genera]] in the family are terrestrial ferns or have very short trunks compared to [[tree fern]]s of the family [[Cyatheaceae]]. However, some of the larger species can reach several metres in height. A number of others are [[epiphyte]]s. They are found mostly in [[tropical]] regions in the [[Southern Hemisphere]], as far south as southern [[New Zealand]]. ==Morphology== Species in the family are generally characterized by large pinnate [[frond]]s, 1–4 m long. The family includes several species of tree ferns, which grow a single trunk, notably the species in ''[[Dicksonia]]''. All members of the family have long, tapering hairs composed of cells arranged end to end, unlike the scales characteristic of the Cyatheaceae. ==Evolution== The ferns of family Dicksoniaceae are generally regarded as more primitive than those of the family Cyatheaceae, having originated in the early [[Jurassic]] period. ==Diversity== Only 3 extant [[genus|genera]] are recognised in this [[monophyletic]] family: * ''[[Calochlaena]]'' * ''[[Dicksonia]]'' * ''[[Lophosoria]]'' ==See also== * [[Cyatheales]] ==References== * [http://www.jaknouse.athens.oh.us/ferns/classfra.html Classification of Ferns and Allies] * Braggins, J. E. and Large, M. F. (2004). ''Tree Ferns''. Timber Press. ISBN 0-88192-630-2 *Smith, A.R., K.M. Pryer, E. Schuettpelz, P. Korall, H. Schneider & P.G. Wolf 2006. {{PDFlink|[http://www.pryerlab.net/publication/fichier749.pdf A classification for extant ferns.]|420&nbsp;[[Kibibyte|KiB]]<!-- application/pdf, 430863 bytes -->}} ''Taxonomy'' '''55'''(3): 705-731. {{commonscat}} [[Category:Plant families]] [[Category:Pteridophyta]] [[id:Dicksoniaceae]] [[de:Dicksoniaceae]] [[es:Dicksoniaceae]] [[nl:Dicksoniaceae]] [[pt:Dicksoniaceae]]