National Forests in Florida Final Report
Pond-cypress / Myrtle Dahoon / Myrtleleaf St. John's-wort - Florida Lobelia - Tall Pinebarren Milkwort Woodland
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- Pond-cypress / Myrtle Dahoon Depression Forest
Pond-cypress / Myrtle Dahoon / Myrtleleaf St. John's-wort - Florida Lobelia - Tall Pinebarren Milkwort WoodlandElement Identifiers NVCS association: Taxodium ascendens / Ilex myrtifolia / Hypericum myrtifolium / Lobelia floridana - Polygala cymosa Woodland Database Code: CEGL004959 Formation: Seasonally flooded cold-deciduous woodland Alliance: TAXODIUM ASCENDENS SEASONALLY FLOODED WOODLAND ALLIANCE (II.B.2.N.c.4) Element Concept Summary: This dome swamp association occurs embedded in pine flatwoods. Taxodium ascendens dominates the canopy (often essentially monospecific), but sometimes with lesser amounts of Pinus elliottii var. elliottii or Nyssa biflora. Ilex myrtifolia is common in the understory. Other characteristic species include Arnoglossum ovatum, Asclepias lanceolata, Coelorachis rugosa, Coreopsis nudata, Dichanthelium erectifolium, Dichanthelium scoparium, Dichanthelium wrightianum, Eleocharis tuberculosa, Eriocaulon decangulare, Hypericum myrtifolium, Juncus polycephalus, Lobelia floridana, Ludwigia pilosa, Oxypolis filiformis, Pinguicula planifolia, Polygala cymosa, Rhexia virginica, Rhynchospora careyana, Rhynchospora corniculata, Rhynchospora filifolia, Rhynchospora spp., Sabatia bartramii, Scleria baldwinii, Woodwardia virginica, and Xyris spp. Environment: See Summary Vegetation: See Summary Dynamics: See Summary Similar Associations: No information Synonymy: No information Comments: None Conservation Ranking & Rare Species GRank: G3 (99-12-15): These pond cypress swamps occur in depressions in pine flatwoods in the East Gulf Coastal Plain Ecoregion and probably also in southern Georgia. They are often small in acreage, and in dry years fires in adjacent lands burn through them or into the swamp ecotone. This community type was once thought to be common throughout its range, but most have been degraded or destroyed by silvicultural and agricultural activities (including grazing) and, more recently, by urban development and off-road vehicle traffic ("bogging"). Plowed firebreaks are frequently placed in the swamp ecotones, which prevents fire from extinguishing naturally in the ecotone or, on occasion, burning completely through the swamp, thereby maintaining the open woodland nature of this community. High-quality examples with undisturbed, well-burned ecotones are rare. High-ranked species: PINGUICULA PLANIFOLIA (G3?) Element Distribution Range: States: AL FL GA MS Crosswalk to State Classifications: FL: Dome Swamp, in part (FL 1992) TNC Ecoregions: 53:C USFS Ecoregions: 232Dc:CCC Federal Lands: USFS (Apalachicola) Element Sources References: FNAI 1990, FNAI 1992b, Kindell et al. 1997, NatureServe Ecology - Southeast U.S. unpubl. data Flatwoods – Wooded Ponds and Dome Swamps Pond-cypress / Myrtle Dahoon Depression ForestElement Identifiers NVCS association: Taxodium ascendens / Ilex myrtifolia Depression Forest Database Code: CEGL007418 Formation: Seasonally flooded cold-deciduous forest Alliance: TAXODIUM ASCENDENS SEASONALLY FLOODED FOREST ALLIANCE (I.B.2.N.e.21) Element Concept Summary: This forest, dominated by a moderate to dense canopy of Taxodium ascendens over Ilex myrtifolia, occurs in depressions on the Coastal Plain from southern North Carolina south to panhandle and peninsular Florida, and west to Alabama and Louisiana. Other characteristic species in the canopy, which can occasionally share dominance with Taxodium ascendens are Nyssa biflora and (from southeastern South Carolina south) Pinus elliottii var. elliottii. Other common species in this community are Nyssa biflora, Magnolia virginiana, Acer rubrum, Persea palustris, Cephalanthus occidentalis, Cyrilla racemiflora, Clethra alnifolia, Lyonia lucida, Dulichium arundinaceum, Osmunda cinnamomea, Pontederia cordata, Boehmeria cylindrica, Triadenum spp., Brasenia schreberi, Nymphoides spp., Nuphar lutea, Cabomba caroliniana, Potamogeton spp., Rhynchospora macrostachya, Rhynchospora inundata, Carex glaucescens, Carex spp., Utricularia spp., Juncus spp., Polygonum spp., and Hydrocotyle spp. Typical occurrences have a mostly closed canopy, little understory with shrubs and herbs established on fallen logs, tree bases or areas where the substrate is elevated. Deep areas may have rooted aquatics and surface water will be present for extended periods of the year. Environment: This forest occurs in depressions on the Coastal Plain from southern North Carolina south to panhandle and peninsular Florida, and west to Alabama and Louisiana. Vegetation: Stands are dominated by a moderate to dense canopy of Taxodium ascendens over Ilex myrtifolia. Other characteristic species in the canopy are Nyssa biflora and (from southeastern South Carolina south) Pinus elliottii var. elliottii. Other common species in this community are Nyssa biflora, Magnolia virginiana, Acer rubrum, Persea palustris, Cephalanthus occidentalis, Cyrilla racemiflora, Clethra alnifolia, Lyonia lucida, Dulichium arundinaceum, Osmunda cinnamomea, Pontederia cordata, Boehmeria cylindrica, Triadenum spp., Rhynchospora macrostachya, Rhynchospora inundata, Carex glaucescens, Carex spp., Juncus spp., Polygonum spp., and Hydrocotyle spp. Floating aquatic species include Brasenia schreberi, Nymphoides spp., Nuphar lutea, Cabomba caroliniana, Utricularia spp., and Potamogeton spp. Dynamics: See Summary Similar Associations: No information Synonymy: IIA10a. Pond Cypress Forest (Allard 1990) B. in part Dome Swamp, Cypress Dome subtype (FNAI 1992b) B. in part Comments: Represented by plot APAL.56 (NatureServe unpubl. data). Conservation Ranking & Rare Species GRank: G3? (97-08-15): High-ranked species: No information Element Distribution Range: This forest occurs in the Coastal Plain from southern North Carolina south to panhandle and peninsular Florida, and west to Alabama and Louisiana. States: AL FL GA LA? MS NC SC Crosswalk to State Classifications: AL: Pond Cypress Pond Forest (AL 1993) FL: Dome Swamp, in part (FL 1992) GA: Cypress/Gum Pond, in part (GA 1990) LA?: Slash Pine-Pond Cypress/Hardwood Forest, in part (LA 1996) MS: No equivalent? (MS 1994) NC: Small Depression Pond, in part (NC 1990) SC: Pond Cypress Pond (SC 1986) TNC Ecoregions: 53:C, 55:C, 56:C, 57:C USFS Ecoregions: 232Bh:CCC, 232Br:CCC, 232Ca:CCC, 232Dc:CCC Federal Lands: DOD (Fort Stewart); USFS (Apalachicola, Conecuh, Croatan, De Soto, Francis Marion, Ocala, Osceola) Element Sources References: Allard 1990, Ambrose 1990a, FNAI 1992a, FNAI 1992b, Nelson 1986, Oberholster 1993, Schafale and Weakley 1990, Smith 1996a Upland Depression Shrub Ponds 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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