Danaea
From Wikipedia, the free encyclopedia
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Danaea acuminata Tuomisto & R.C.Moran Danaea alata Sm. Danaea antillensis Christenh. Danaea arbuscula Christenh. & Tuomisto Danaea bicolor Tuomisto & R.C.Moran Danaea bipinnata Tuomisto Danaea carillensis H.Christ Danaea cartilaginea Christenh. & Tuomisto Danaea crispa Endrés Danaea erecta Tuomisto & R.C.Moran Danaea excurrens Rosenst. Danaea falcata Tuomisto & R.C.Moran Danaea geniculata Raddi Danaea grandifolia Underwood Danaea humilis T.Moore Danaea imbricata Tuomisto & R.C.Moran Danaea jenmanii Underw. Danaea kalevala Christenh. Danaea latipinna Tuomisto & R.C.Moran Danaea leprieurii Kunze Danaea lingua-cervina Christenh. & Tuomisto Danaea longicaudata Tuomisto Danaea mazeana Underw. Danaea media Liebmann Danaea moritziana C.Presl Danaea nodosa Sm. Danaea oblanceolata Stolze Danaea plicata H.Christ Danaea polymorpha Lepr. ex Baker Danaea riparia Christenh. & Tuomisto Danaea sellowiana C.Presl Danaea simplicifolia Rudge Danaea tenera C.V.Morton Danaea trichomanoides Spruce ex T.Moore Danaea trifoliata Reichenb. Danaea ulei H.Christ Danaea urbanii Maxon Danaea ushana Christenh. Danaea vivax Christenh. & Tuomisto Danaea wendlandii Reichenb.f. |
Danaea Sm. is a fern genus of approximately 50 species in the eusporangiate fern family Marattiaceae. they are small to intermediately large ferns with erect or creeping rhizomes and usually once pinnate leaves with opposite pinnae. The fertile leaves are contracted, acrostichoid and covered below with sunken, linear synangia. The genus Danaea has a Neotropical distribution, occurring from southern Mexico through Central America, the Caribbean and northern South America to Bolivia, Paraguay and the Mata Atlantica in Brazil. There is also a population on Isla del Coco (Cocos Island) in the Pacific. Two species Danaea carillensis (Costa Rica) and D. simplicifolia (Guianas, Brazil, Trinidad) have simple, undivided leaves, and some other species sometimes have bipinnate leaves (D. bipinnata, D. nodosa, D. urbanii). One species Danaea kalevala of the Lesser Antilles was named in honour of the Finnish heroic epic Kalevala.
[edit] Classification
Danaea is the basal lineage in the Marattiaceae and the oldest fossils are from the Paleocene, a period where rainforests became more abundant. It has radiated in these early rainforests and presently counts about 50 species in 3 sections: sect. Danaea, sect. Arthrodanaea and sect. Holodanaea.
[edit] References
Christenhusz, M. J. M., Tuomisto, H. Metzgar, J. and Pryer, K. M., in press. Evolutionary relationships within the Neotropical, eusporangiate fern genus Danaea (Marattiaceae). Molecular Phylogenetics and Evolution (Elsevier).
Christenhusz, M.J.M., Tuomisto, H. 2005. Some notes on the taxonomy, biogeography and ecology of Danaea (Marattiaceae). Fern Gazette 17 (5): 217-222.
Christenhusz, M. J. M. 2006. Three new species of Danaea (Marattiaceae) from French Guiana and the Lesser Antilles. Annales Botanici Fennici 43: 212-219.
Christenhusz, M. J. M., Tuomisto, H. 2006. Five new species of Danaea (Marattiaceae) from Peru and a new status for D. elliptica. Kew Bulletin 61: 17-30.
Tuomisto, H., Moran, R. C. 2001. Marattiaceae. In: Harling, G., Anderson, L. (eds.), Flora of Ecuador 66: 22-170.
Underwood, L.M. 1902. American Ferns - V, A Review of the Genus Danaea. Bulletin of the Torrey Botanical Club 29(12): 669-679.
