25. Physiographic characterization of natural area: A tidally flooded 

 to seasonally flooded climax community of a hydric pelosere in the 

 alluvial plain of the Northeast Cape Fear River, underlain by 

 mostly Eocene Castle Hayne limestone in the Coastal Plain province of 

 the Atlantic Plain. The Northeast Cape Fear drains into the estuary 

 of the Cape Fear River. 



Geological Formation: Eocene Castle Hayne limestone cover by fluvial 



deposits of sand, silt, and organic detritus. 



Geological Formation age: Eocene formation: 40-50 million years. 



26. Summary - Endangered and threatened species 



(1) Name of species: Ilex amelanchier (AQUIFOLIACEAE) Sarvis-leaf 

 holly 



Species legal status and authority: NC threatened throughout (Cooper 



et al. 1977) . 



Number of populations on site: 1 



Number of individuals per population: Possibly 500 



Size or maturity of individuals: Immature and mature 



Phenology of population: Vegetative: 50%; Flowering: 0%; Fruiting: 50% 



General vigor of population: Very vigorous 



Disturbance or threats to population: None 



Habitat characteristics: 



Plant community: Swampy red maple-cypress- black gum woodlands 



Topography : Level 



Soil series: Johnston or Lumbee 



Microclimate: Not determined 



Drainage basin: Holly Shelter Creek and Northeast Cape Fear River 



Other plants and animal species present: Plants: Fraxinus caroliniana , 



Ilex verticillata , Cornus stricta ; Animals: see attached master species 



lists. 



(2) Name of species: Cardamine longii (BRASSICACEAE) Long's bittercress 

 Species legal status and authority: Proposed NC threatened throughout, 

 based on present records of only two county occurrences in NC — Pender 

 and Jones. 



Number of populations on site: 3 



Number of individuals per population: Ca. 50-100 



Size or maturity of individuals: Mostly mature 



Phenology of population: Vegetative: 20%; Flowering: 0%; Fruiting: 80% 



General vigor of population: Vigorous 



Disturbance or threats to population: None 



Habitat characteristics: 



Plant community: Open, mucky exposures in deep cypress swamps 



Topography : Level 



Soil series: Johnston 



Microclimate: Not determined 



Drainage basin: Northeast Cape Fear River, Long Creek and Island 



Creek sub-basins 



Other plants and animal species present: Plants: Senecio glabellus , 



Bacopa caroliniana. Animals: See attached master species lists. 



33 



