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Specimen count
Pteridophyte taxa known or reported from Sulawesi
Nephrodium molle
EOL Text
Comments: Roadside banks, borders of thickers, pastures and cultivated or disturbed grounds (Proctoer, 1985).
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Thelypteris+dentata |
Habitat and Ecology
Systems
- Terrestrial
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/43683 |
Damp woods; 0--100m.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501279 |
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
United States
Rounded National Status Rank: NU - Unrankable
dentata: toothed; referring to the lobed pinnae
Rounded Global Status Rank: G5 - Secure
Reasons: Pantropical distribution, though exotic to Hawaii. Abundant.
Thelypteris dentata is found in Alabama, Florida, Georgia, Louisiana, Mississippi, and South Carolina, and is an exotic species in Kentucky and Hawaii (NatureServe Explorer, 2013).
Bartsch & Lawrence (1997: 72) measured Thelypteris dentata leaf length and weight from a forest wetland in Hillsborough County, Florida. Leaf length and leaf biomass fitted a parabolic curve (r2 = 0.93), indicating that the fern allocated more energy first to leaf length and later to biomass (Bartsch & Lawrence, 1997: 73). Biomass was greater in the leaves relative to stalk biomass, indicating effort to producing photosynthetic biomass rather than supportive structures (Bartsch & Lawrence, 1997: 73). In addition, T. dentata had greater specific leaf area (43 mm2 per mg) than another fern Woodwardia virginica (22 mm2 per mg) growing in the same habitat, which may confer a competitive advantage for light (Bartsch & Lawrence, 1997: 73).
In Japan the non-native T. dentata escaped from greenhouses in the Wakayama Prefecture in 1951. Murakami and his team surveyed 79 stations from the Osaka Prefecture, Southern Kyoto Prefecture, and central Shiga Prefecture (Murakami et al., 2007: 187). They also compared the temperatures from 1970-1982 and 1983-2005 (Murakami et al., 2007: 188). Thelypteris dentata was found in 34 of the 79 railway sites, growing along stone walls, drainage channels or side walls (Murakami et al., 2007: 188). Murakami et al. (2007: 188) report that the fern’s northern expansion in Japan was approximately 3 kilometers per year, having spread 60 km in 20 years.
Thelypteris dentata can be used to remediate fly ash polluted areas (Kumari et al., 2012: 148). Kumari and his team used sporophylls from Thelypteris dentata that was growing in a fly ash landfill site of the thermal power station of Kahalgaon, India. Ferns were transplanted into treatments that had fly ash (25%, 50%, 75%) with garden soil (Kumari et al., 2012: 148). Ferns were measured for metals iron (Fe), cadmium (Cd), lead (Pb), and two metalloids, silica (Si), and arsenic (As) (Kumari, 2012:148). Concentrations of Fe, Si, As, Cd, and Pb increased with proportion of fly ash with greater concentrations in the roots and rhizome than in the fronds (Kumari et al., 2012: 149). Given the sequestration of fly ash constituents, Thelypteris dentata can be used to revegetate industrial sites where fly ash has contaminated the soil (Kumari et al., 2013:151).
References
Bartsch, I., & Lawrence, J. 1997. Leaf size and biomass allocation in Thelypteris dentata Woodwardia virginica, and Osmunda regalis in central Florida. American Fern Journal Volume. 87: 71-76.
Kumari, A., Pandey, V.C., & Rai, U.N. 2012. Feasibility of fern Thelypteris dentata for revegetation of coal fly ash landfills. Journal of Geochemical Exploration 128: 147-152.
Murakami, K., Matsui, R., & Morimoto, Y. 2007. Northward invasion and range expansion of the invasive fern Thelypteris dentata (Forssk.) St. John into the urban matrix of three prefectures in Kinki District, Japan. American Fern Journal 97: 186-198.
NatureServe Explorer. 2013. Thelypteris dentata. NatureServe Explorer: An online encyclopedia of life. Version 7.1. NatureServe, Arlington, Virginia; available at: http://www.natureserve.org/explorer/servlet/NatureServe?searchSciOrCommonName=Thelypteris+dentata; accessed on February 15, 2013.
Red List Criteria
Year Assessed
- Needs updating
Assessor/s
Reviewer/s
Contributor/s
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/43683 |