Danaea
| Danaea | |
|---|---|
| Danaea leprieurii | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Marattiales |
| Family: | Marattiaceae |
| Genus: | Sm. |
| Type species | |
| Danaea nodosa (L.) Sm.
| |
| Species | |
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See text | |
| Synonyms | |
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Danaea is a fern genus of approximately 80 species in the eusporangiate fern family Marattiaceae.[1] 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 and Northern Argentina. There is also a population on Isla del Coco (Cocos Island) in the Pacific.[2][3]
The genus name of Danaea is named after the Greek mythology, Danaë, an Argive princess and mother of the hero Perseus by Zeus.[4]
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. atlantica, D. bipinnata, D. nodosa, D. urbanii). One species Danaea kalevala of the Lesser Antilles was named in honour of the Finnish heroic epic Kalevala.
The basal chromosome number for this genus is 2n=80. The type species is Danaea nodosa.[1][5]
Taxonomy
Danaea is the earliest diverging lineage in the Marattiaceae.[5] It has radiated in the American tropics and presently counts about 80 species in 3 subgenera: subg. Danaea, subg. Arthrodanaea and subg. Holodanaea.[1][6]
| Phylogeny of Danaea[7][8] | Unassigned species: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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References
- ^ a b c Keskiniva, Venni; Tuomisto, Hanna; Lehtonen, Samuli (2024-01-22). "Danaea (Marattiaceae) keeps diversifying, part 2: phylogeny and identification key for 81 taxa". Willdenowia. 53 (3). doi:10.3372/wi.53.53304. ISSN 0511-9618.
- ^ Underwood, Lucien Marcus (1902). "American Ferns-V. A Review of the Genus Danaea". Bulletin of the Torrey Botanical Club. 29 (12): 669–679. doi:10.2307/2478696. ISSN 0040-9618.
- ^ CHRISTENHUSZ, MAARTEN J. M. (2010-07-01). "Danaea (Marattiaceae) revisited: biodiversity, a new classification and ten new species of a neotropical fern genus". Botanical Journal of the Linnean Society. 163 (3): 360–385. doi:10.1111/j.1095-8339.2010.01061.x. ISSN 0024-4074.
- ^ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. S2CID 246307410. Retrieved January 27, 2022.
- ^ a b Murdock, Andrew G. (2008). "A taxonomic revision of the eusporangiate fern family Marattiaceae, with description of a new genus Ptisana". TAXON. 57 (3): 737–755. doi:10.1002/tax.573007. ISSN 1996-8175.
- ^ Christenhusz, M. J. M.; Tuomisto, H.; Metzgar, J. S.; Pryer, K. M. (2008-01-01). "Evolutionary relationships within the Neotropical, eusporangiate fern genus Danaea (Marattiaceae)". Molecular Phylogenetics and Evolution. 46 (1): 34–48. doi:10.1016/j.ympev.2007.09.015. ISSN 1055-7903.
- ^ Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13: 909768. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
- ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.7.0 (GenBank release 261). 2024. Retrieved 1 May 2025.