National Forests in Florida Final Report
Southern Maidenhair Fern Limestone Outcrop Seep
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- Water Tupelo - Swamp Blackgum Swamp Forest
Southern Maidenhair Fern Limestone Outcrop SeepElement Identifiers NVCS association: Adiantum capillus-veneris - Thelypteris kunthii / Dumortiera hirsuta Herbaceous Vegetation Database Code: CEGL004717 Formation: Saturated temperate perennial forb vegetation Alliance: ADIANTUM CAPILLUS-VENERIS SATURATED HERBACEOUS ALLIANCE (V.B.2.N.f.2) Element Concept Summary: This association occurs on seepy limestone exposed on shaded riverbanks, sinkhole sides, and stream ravines in the East Gulf Coastal Plain. Adiantum capillus-veneris and Thelypteris kunthii are generally the dominant herbs. Decumaria barbara is often a common to codominant festooning vine. Other species may include Aristolochia serpentaria, Selaginella ludoviciana, Carex spp., and others. Bryophytes are abundant and lush, usually dominated by the thallose liverwort Dumortiera hirsuta. In Panhandle Florida, Thelypteris ovata, Toxicodendron radicans, Decumaria barbara, and Parthenocissus quinquefolia are also reported in association with Adiantum. Environment: See Summary Vegetation: Adiantum capillus-veneris and Thelypteris kunthii are generally the dominant herbs in this association. Decumaria barbara is often a common to codominant festooning vine. Other species may include Aristolochia serpentaria, Selaginella ludoviciana, Carex spp., and others. Bryophytes are abundant and lush, usually dominated by the thallose liverwort Dumortiera hirsuta. In Panhandle Florida, Thelypteris ovata, Toxicodendron radicans, Decumaria barbara, and Parthenocissus quinquefolia are also reported in association with Adiantum. Dynamics: See Summary Similar Associations: Adiantum capillus-veneris Cahaba River Bluff Herbaceous Vegetation (CEGL007796)--of Upper East Gulf Coastal Plain of Alabama. Synonymy: No information Comments: Wharton (1978) describes "wet cliffs" with Adiantum capillus-veneris on a "laminated series of silt-clays" in western Georgia (Clay, Early counties) and adjacent Alabama in an area that Roland Harper called the "Blue Marl Region". Wharton comments that this area ("Chattahoochee Ravines") and the "Torreya ravines" are the only localities for Adiantum capillus-veneris not on limestone. Other herbs associated with this clay seepage environment include Polystichum acrostichoides, Osmunda cinnamomea, and Lobelia cardinalis (Wharton 1978). Conservation Ranking & Rare Species GRank: G3? (00-12-20): This association is restricted to seepy limestone exposed on shaded riverbanks, sinkhole sides, and stream ravines in the East Gulf Coastal Plain. The complete number of occurrences is not known. Threats to this community include diminution of source water through disruptions of limestone aquifers. At present, some sites receive de facto protection due to rugged topography and lack of any economic incentive for land-use conversion. Some protected examples are in the Apalachicola National Forest of Florida. High-ranked species: No information Element Distribution Range: States: AL FL GA Crosswalk to State Classifications: FL: Bluff, in part (FL 1992) TNC Ecoregions: 53:C USFS Ecoregions: 232Bi:CCC, 232Dc:CCC Federal Lands: USFS (Apalachicola) Element Sources References: FNAI 1992a, Wharton 1978 Backswamp/Slough Floodplain Forests Water Tupelo - Swamp Blackgum Swamp ForestElement Identifiers NVCS association: Nyssa aquatica - Nyssa biflora Forest Database Code: CEGL007429 Formation: Semipermanently flooded cold-deciduous forest Alliance: NYSSA AQUATICA - (TAXODIUM DISTICHUM) SEMIPERMANENTLY FLOODED FOREST ALLIANCE (I.B.2.N.f.2) Element Concept Summary: This forest, dominated by Nyssa aquatica and Nyssa biflora in varying proportions, is found along shallow borders of alluvial swamps and flats near uplands. It is a Zone II community. The range has not been completely assessed; it is theoretically possible on the Atlantic Coastal Plain from southeastern Virginia to southern Georgia, the Gulf Coastal Plain from about Tallahassee west to southeastern Texas, and the Mississippi Alluvial Plain to southern Arkansas and western Tennessee. Taxodium distichum may occur in the canopy of this community, but is not a dominant (usually less than 25% cover). Other tree canopy/subcanopy species are Fraxinus pennsylvanica, Salix nigra, Populus heterophylla, and Carpinus caroliniana. Other shrub and herbaceous species are Leucothoe racemosa, Cyrilla racemiflora, Planera aquatica, and Saururus cernuus. Decumaria barbara, Toxicodendron radicans, Ampelopsis arborea, and Bignonia capreolata are commonly occurring vines, but have less than 10% cover. Environment: This forest association is found along shallow borders of alluvial swamps and flats near uplands. It is a Zone II community. Vegetation: Stands of this forest are dominated by Nyssa aquatica and Nyssa biflora in varying proportions. Taxodium distichum may occur in the canopy of this community, but is not a dominant (usually less than 25% cover). Other tree canopy/subcanopy species are Fraxinus pennsylvanica, Salix nigra, Populus heterophylla, and Carpinus caroliniana. Other shrub and herbaceous species are Leucothoe racemosa, Cyrilla racemiflora, Planera aquatica, and Saururus cernuus. Decumaria barbara, Toxicodendron radicans, Ampelopsis arborea, and Bignonia capreolata are commonly occurring vines, but have less than 10% cover. Dynamics: See Summary Similar Associations: No information Synonymy: IIA4d. Tupelo Swamp (Allard 1990) B. in part P1B3dII3b. Nyssa aquatica - Nyssa biflora - Taxodium distichum (Foti et al. 1994) Comments: None Conservation Ranking & Rare Species GRank: G4G5 (97-08-15): High-ranked species: No information Element Distribution Range: The range has not been completely assessed; it is theoretically possible on the Atlantic Coastal Plain from southeastern Virginia to southern Georgia, the Gulf Coastal Plain from about Tallahassee west to southeastern Texas, and the Mississippi Alluvial Plain to southern Arkansas and western Tennessee. States: AL AR FL GA LA? MS NC SC TN? TX VA Crosswalk to State Classifications: AL: Tupelo Swamp, in part (AL 1993) FL: No equivalent? (FL 1992) GA: Blackwater Stream Floodplain Forest, in part; Brownwater Stream Floodplain Forest, in part (GA 1990) LA?: Gum Swamp, in part (LA 1996) MS: Tupelo Swamp, in part (MS 1994) NC: Cypress--Gum Swamp, Brownwater Subtype, in part (NC 1990) SC: Bald Cypress--Tupelo Gum Swamp, in part (SC 1986) TX: Baldcypress-Water Tupelo Series, in part (TX 1993) VA: Bald Cypress - Tupelo Swamp, in part (VA 2001) TNC Ecoregions: 40:C, 41:C, 42:C, 53:C, 56:C, 57:C USFS Ecoregions: 232:C, 234A:CC Federal Lands: DOD (Fort Benning?); DOE (Savannah River Site); USFS (Angelina?, Apalachicola, Croatan, Francis Marion, Kisatchie, Sabine?); USFWS (Hatchie, Lower Hatchie?) Element Sources References: Allard 1990, Ambrose 1990a, Diamond 1993, Evans 1991, Fleming et al. 2001, Foti et al. 1994, Nelson 1986, Oberholster 1993, Schafale and Weakley 1990, Smith 1996a, Wieland 1994b Backswamp/Slough Floodplain Forests Directory: library library -> Strategic Plan South Sudan Country Office Context library -> The World Order of Bahá’u’lláh Selected Letters library -> Ieee/iee electronic Library (iel) library -> [0] B. Hardware [2] library -> [1] B. Hardware [1] library -> Florida public service commission library -> 1 1 before the florida public service commission 2 docket no. 070650-ei 3 In the Matter of: 4 petition to determine need for turkey point nuclear units 6 and 7 electrical 5 power plant, by florida power & light company library -> Archived Online Exhibit Download 3.16 Mb. Share with your friends:
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