Hemidictyum
| Hemidictyum | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Family: | Hemidictyaceae Christenh. & H. Schneider. 2011 |
| Genus: | Hemidictyum C.Presl 1836 |
| Species: | H. marginatum |
| Binomial name | |
| Hemidictyum marginatum (L.) C.Presl | |
Hemidictyaceae is a family of ferns in the order Polypodiales.[1] Its sole genus is ''Hemidictyum'' C.Presl 1836, commonly known as the "marginated half net fern."[2] Hemidictyaceae is considered to be a sister family to Aspleniaceae, believed to have diverged during the Cretaceous period.[3][4]
The name Hemidictyum was derived from the terms hemi (half) and diktyon (net), from the veins being netted only half-way across the pinnules.[5]
Distribution
Hemidictyum is a native neotropical fern, found in Mexico, the Caribbean, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, French Guiana, Suriname, Brazil, Venezuela, Puerto Rico, Bolivia, Colombia, Ecuador, and Peru.[2][6]
Species
There is currently only one accepted Hemidictyum species name, Hemidictyum marginatum. The other names are considered to be synonyms, either of that species, or of accepted Asplenium species:[7]
- Hemidictyum marginatum (L.) C.Presl 1836
- Hemidictyum purdieanum (Hook.) T.Moore 1857
- Hemidictyum finlaysonianum (Wall. ex Hook) T.Moore 1857
Phylogenic relationships
The following diagram for the eupolypods II, based on Lehtonen, 2011,[8] and Rothfels & al., 2012,[9] shows a likely phylogenic relationship between the Hemidictyaceae and the other families of the eupolypods II clade.
| eupolypods II |
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References
- ↑ Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon 55 (3): 705–731. doi:10.2307/25065646.
- 1 2 "Hemidictyum marginatum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 4 Feb 2012.
- ↑ Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa 19: 7–54.
- ↑ Maarten J. M. Christenhusz & Harald Schneider (2011). "Corrections to Phytotaxa 19: Linear sequence of lycophytes and ferns" (PDF). Phytotaxa 28: 50–52.
- ↑ The Fern Manual, being a description of all the best stove, greenhouse and hardy ferns by contributors to the Journal of Horticulture p.69, London, 1863
- ↑ Hemidictyum marginatum USDA-ARS Germplasm Resources Information Network (GRIN) 25 Jul 2002
- ↑ Hemidictyum Tropicos.org. Missouri Botanical Garden. 04 Feb 2012
- ↑ Samuli Lehtonen (2011). "Towards Resolving the Complete Fern Tree of Life" (PDF). PLoS ONE 6 (10): e24851. doi:10.1371/journal.pone.0024851. PMC 3192703. PMID 22022365.
- ↑ Carl J. Rothfels, Anders Larsson, Li-Yaung Kuo, Petra Korall, Wen- Liang Chiou, Kathleen M. Pryer (2012). "Overcoming Deep Roots, Fast Rates, and Short Internodes to Resolve the Ancient Rapid Radiation of Eupolypod II Ferns". Systematic Biology 61 (1): 70. doi:10.1093/sysbio/sys001. PMID 22223449.