26. Summary - endangered and threatened species 



Name of species: Glyceria pallida (pale mannagrass) 



Species legal status and authority: Threatened peripheral 

 in North Carolina (Cooper et al. 1977). 



Number of populations on site: Several, 



Number of individuals per population: Varies greatly 

 from year to year. From 2 or 3 to several hundred individuals 

 in good years . 



Size or maturity of individuals: 



Phenology of population: 

 Eg: vegetative % 



flowering % ioo% 



fruiting % ioo% 

 General vigor of population: varies highly from year to year. 



Disturbance or threats to population: None known. 



Habitat characteristics 



Plant community: Nyssa aguatica /mixed emergent aquatic 



herbs.- 

 Topography : 



Soil series: Undetermined. 



Microclimate: Cooler and with less insolation than natural 



area climate. 



Drainage basin: Chowan River. 



Other plants and animal species present: 

 Hottonia inflata, Callitriche heterophylla, Ceratophyllum 

 echinatum, beaver, wood ducks. 



Aerial or detailed maps with populations clearly marked; 



141 



