79 



Table 1. — Continued 











STATIONS 











A 



B 



c 



D 



E 



F 



G 



H 



1 





Aquilegia canadensis 







X 













X 



+ 



Carex platyphylla 





X 















X 





Caulophyllnm thalictroides . . 















X 





X 





Cheilanthes alabamensis 



. X 









X 











** 



Cimicifuga racemosa 





X 



X 

















Dioscorea glauca 





X 











X 









Hypericum punctatiim 



. X 



X 



















Magnolia Fraseri 













X 



X 









Mitella diphylla 













X 



X 







+ 



Philadelphus hirsutus 



. X 



X 



















Riiellia parviflora 



. X 













V 









Scleria oligantha 





X 













X 







Selaginella apoda 





X 







X 











*— + 



Viburnum acerijolium 



. X 

















X 





Asplenium cryptolepis 









X 













** 



Carex heterosperma 









X 













+ 



Carex plantaginea 













X 









** 



Cheilanthes lanosa 

















X 





*— + 



Polygala Senega 



. X 



















* 



* Nomenclature is essentially that of Gray's Manual, 7th edition. The ex- 

 ceptions may be found in Small's Manual of the Southeastern Flora or 

 Blomquist's Ferns of North Carolina, 1934. Specimens of all collections are 

 deposited in the Duke University Herbarium. 



- Meaning of symbols in terms of manuals and other similar sources of 

 information. 



** — found only in calcacerous habitats (obligate calciphiles). 

 * — found characteristically in alkaline habitats but not restricted to 



them (calciphiles). 

 + — growing in soils of widely different pH but apparently best suited 

 to calcareous substrata. 



larly in any moist, rich hardwood forest especially in or near the 

 mountains. This group includes practically all other species not 

 marked with a symbol. Arisaema, Aruncus, Hydrangea and Smila- 

 cina are familiar illustrations. It should be noted that these species 

 were found only on the forested portions of areas studied and that 

 here the accumulated organic layer overlying the mineral soil is 

 essentially acid. The. significant species were found almost exclu- 

 sively on exposed limestone or thin mineral soil with an alkaline 

 reaction. 



