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Topic: Dicksoniaceae


  
  Dicksoniaceae - Wikipedia, the free encyclopedia
The Dicksoniaceae are a family of tropical, subtropical and warm temperate ferns.
Most of the 5-6 genera in the family are terrestrial ferns or have very short trunks compared to tree ferns of the family Cyatheaceae.
The ferns of family Dicksoniaceae are generally regarded as more primitive than those of the family Cyatheaceae, having originated in the early Jurassic period.
en.wikipedia.org /wiki/Dicksoniaceae   (171 words)

  
 [No title]   (Site not responding. Last check: 2007-10-22)
The family Dicksoniaceae includes some true tree ferns, but these are generally not of the same height as the Cyatheaceae.
Most of the genera in the Dicksoniaceae have at one time or another been placed in their own family.
Chromosome counts in the Dicksoniaceae are variable, with Dicksonia featuring n=65, Calochlaena featuring n=58, Cibotium featuring n=68, Culcita having n=66 and 68, Cystodium including n=56, and Thyrsopteris around n=76-78.
home.frognet.net /~jaknouse/ferns.htg/f_dick.html   (137 words)

  
 Cyatheales - Wikipedia, the free encyclopedia
In general, any fern that grows with a trunk elevating the fronds (leaves) above ground level can be called a tree fern.
However, the plants formally known as tree ferns compose a group of large ferns belonging to the families Dicksoniaceae and Cyatheaceae in the order Cyatheales.
Tree ferns are found growing in tropical and subtropical areas, including cool to temperate rainforests in Australia, New Zealand and neighbouring regions (e.g.
en.wikipedia.org /wiki/Tree_fern   (504 words)

  
 Stipe and rachis vasculature of Cystodium sorbiifolium   (Site not responding. Last check: 2007-10-22)
While we were hardly surprised that so many botanists the world over should wish to contribute to this number, we did not anticipate quite the response we got, and a number of articles had to be deferred to Vol.
is a monootypic genus generally placed in the Dicksoniaceae (or Cyatheaceae in the broad sense), restricted to Borneo, Sulawesi (Celebes), the Moluccas, New Guinea, and the Bismarck and Louisiade Archipelagos to the Solomon Islands.
On the basis of the similarity of the structure of the sorus and indusium and the stipe hairs, this family would probably be places near the Dicksoniaceae but the validity of this is uncertain.
www.anbg.gov.au /projects/fern/publications/cystodium_kewbull.html   (3974 words)

  
 [No title]   (Site not responding. Last check: 2007-10-22)
For example, characters used by previous authors to assign the Mesozoic form-genus Coniopteris to Dicksoniaceae are not synapomorphies for the Dicksoniaceae, but are putatively plesiomorphic character states for the stem group of tree ferns + polypodiaceous ferns.
The soral characters that have been used to define Dicksoniaceae in the paleobotanical literature are likely to be plesiomorphic for the larger clade of tree ferns + polypodiaceous ferns.
Therefore, the possibility exists that some fossils, especially members of Coniopteris, may be the remains of either tree ferns, or basal polypodiaceous ferns, or of the stem groups of these ferns.
www.nature.com /nature/journal/v428/n6982/extref/nature02361-s1.doc   (3221 words)

  
 Dicksoniaceae in Trees and shrubs of the Andes of Ecuador @ efloras.org
Dicksoniaceae in Trees and shrubs of the Andes of Ecuador @ efloras.org
La familia Dicksoniaceae consta de 5 géneros y 36 especies distribuidos en las regiones tropicales.
Tryon, R. Dicksoniaceae, en: G. Harling y L. Andersson (eds.), Flora of Ecuador 27: 1–6.
www.efloras.org /florataxon.aspx?flora_id=201&taxon_id=10269   (98 words)

  
 UH Press Journals: Pacific Science, vol. 54, no. 1 (2000)
Abstract: Scanning electron microscope (SEM) studies of tracheary elements of one species each of Sadleria (Blechnaceae), Alsophila (Cyatheaceae), Cibotium, and Dicksonia (Dicksoniaceae) showed that metaxylem of both roots and stems contain vessels with scalariform lateral wall pitting and scalariform perforation plates in which perforations are like lateral wall pits in size and shape.
In Cyatheaceae and Dicksoniaceae, rhizome tracheary elements are short, contorted, with numerous facets.
The rhizome tracheary elements of Cyatheaceae are like those of Dicksoniaceae, but fusiform tracheary elements like those of many fern families occur in Sadleria (Blechnaceae); this correlates with the close grouping of Cyatheaceae with Dicksoniaceae in recent phylogenies that show Blechnaceae well removed from the tree fern families Cyatheaceae and Dicksoniaceae.
www.uhpress.hawaii.edu /journals/ps/PS541.html   (1507 words)

  
 Dicksoniaceae
[ Dichapetalaceae ] [ Dicksoniaceae ] [ Dicranaceae ]
Individual specimen entries are published in the sample database supplied with The Compleat Botanica for species or varieties of this supra-generic taxon.
For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica.
www.crescentbloom.com /Plants/Familia/D/Dicksoniaceae.htm   (51 words)

  
 [No title]   (Site not responding. Last check: 2007-10-22)
Dicksoniaceae: Family treatment from Trees and Shrubs of the Andes of Ecuador
Dicksoniaceae: holdings from Ecology & Evolutionary Biology Conservatory - University of Connecticut
Dicksoniaceae: Sequence data from the National Biotech Info Center
www.csdl.tamu.edu /FLORA/cgi/gateway_family?fam=Dicksoniaceae   (87 words)

  
 CITES NEWS - PLANTS. Issue 5 - English
The tree fern families Dicksoniaceae and Cyatheaceae are listed in Appendix II of CITES.
As a result of these studies a key was produced of the distinguishing characteristics of members of the families Dicksoniaceae and Cyatheaceae from Central and Southern America.
The characters are easily recognisable even for non-botanists: members of Dicksoniaceae are characterised by long, golden hairs on stem and/or petiole base, Cyatheaceae species by scales or spines on stem and/or petiole base.
www.rbgkew.org.uk /herbarium/caps/cites/english/iss5e.htm   (1810 words)

  
 Papuasian pteridophyte families   (Site not responding. Last check: 2007-10-22)
This family has often been included with the Cyatheaceae (e.g.
Some authors remove Culcita and include it in the Thyrsopteridaceae with some New World genera, and others place it in its own family, Culcitaceae, separate from Thyrsopteridaceae and Dicksoniaceae.
The Old World species of Culcita have been placed in a distinct subgenus (Calochlaena) on the basis of significant differences in morphology and cytology that correlates with the very disjunct mid-Atlantic distribution of the remainder of the genus.
www.anbg.gov.au /projects/fern/taxa/dicksoniaceae.html   (359 words)

  
 Wheki, Brown Tree Fern or Hard Tree Fern, Dicksoniaceae, Dicksonia squarrosa   (Site not responding. Last check: 2007-10-22)
Wheki, Brown Tree Fern or Hard Tree Fern, Dicksoniaceae, Dicksonia squarrosa
A medium sized tree fern, with a slender brown trunk.
The top side of the fronds are dark green while underneath they are paler.
www.wairereboulders.co.nz /plants/wheki/wheki.htm   (66 words)

  
 British Ferns - Dicksonia antarctica Labill.   (Site not responding. Last check: 2007-10-22)
Native to S and SE Australia, naturalized in S Kerry, Cornwall and the Isles of Scilly.
Swale and Hassler family: Dicksoniaceae; Stace family: Dicksoniaceae.
The interactive key provides access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting specified attributes, and summaries of attributes within groups of taxa.
delta-intkey.com /britfe/www/dicksoni.htm   (326 words)

  
 Plant Profile for Cibotium nealiae (Neal's manfern)   (Site not responding. Last check: 2007-10-22)
View 2 genera in Dicksoniaceae, 4 species in Cibotium
Click on a scientific name below to expand it in the PLANTS Classification Report.
USDA is an equal opportunity provider and employer.
plants.usda.gov /cgi_bin/plant_profile.cgi?symbol=CINE2   (158 words)

  
 Open Directory - Science: Biology: Flora and Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae   (Site not responding. Last check: 2007-10-22)
Open Directory - Science: Biology: Flora and Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae
Top: Science: Biology: Flora and Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae
Dicksoniaceae - Family overview and images of Dicksonia.
dmoz.org /Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Polypodiopsida/Dicksoniaceae   (62 words)

  
 Dicksoniaceae
Canadian Content > Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae:
Additional Information: Canadian Content has no additional information.
Modified by Canadian Content © 1997 - 2005.
www.canadiancontent.net /dir/Top/Science/Biology/Flora_and_Fauna/Plantae/Polypodiophyta/Polypodiopsida/Dicksoniaceae   (44 words)

  
 Amazon.com: The Botanical Garden: Books: Roger Phillips,Martyn Rix   (Site not responding. Last check: 2007-10-22)
by Roger Phillips, Martyn Rix "Dicksonia L'Herit, (1788) is a genus of around 25 species in the family Dicksoniaceae..." (more)
Dicksonia L'Herit, (1788) is a genus of around 25 species in the family Dicksoniaceae.
Description Shrubs, North America, Relationships Close, Relationships Related, Comment These, New Zealand, South Africa, Description Small, Description Climbing, Comment Several, Canary Islands, American Indians, British Columbia, New Caledonia, New Guinea, The Howcrs, Description Stems, Description Suhshruhs, Santa Barbara Islands, Black Sea, Comment Attractive, South Carolina, Comment Often, The Icaycs
www.amazon.com /exec/obidos/tg/detail/-/1552975916?v=glance   (1344 words)

  
 GoForIt.com's Directory - Science: Biology: Flora and Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae
GoForIt.com's Directory - Science: Biology: Flora and Fauna: Plantae: Polypodiophyta: Polypodiopsida: Dicksoniaceae
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search.goforit.com /default?p=27256   (52 words)

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