78 



ered by impounded water. Proximity of limestone and the species 

 found, reason for inclusion of this locality. Records are from both 

 bluffs of the river. 



I — Yadkin County, "Lime Rock," about five miles north of 

 East Bend, north facing bluff along Yadkin River. Steep shaded 

 bluff, calcareous rock outcropping and site of old lime kilns. 



The repeated occurrences (Table 1) of several species bear no 

 relation to the calcareous substratum. Polystichum acrostichoides, 

 Asplenimn platyneiiron and Viburnum acerifoliiim are common 

 throughout North Carolina and may be found in almost any forest 

 whether pine or hardwood. Another larger group occurs regu- 



Table 1. A list of the species collected at two or more of the nine stations 



where calcareous rock was located. Stations are indicated by letter 



and collections by X 



STATIONS 



A B C D E F G H I 



Asplenium resiliens^ . 

 Pellaea atropurpurea 



X X X X X 

 X X X X X 



X **2 

 X * 



Adiantum pedahim 



Asplenium platyneiiron . . 

 Asplenium trichomanes . . 

 Camptosorus rhisophyllus 

 Sedum ternatum 



X X 



X X X X X + 

 XX .. 



X X 

 X .. 



X X X X 

 XX.. 

 XX.. 



+ 



Arisaema triphyllum .... 



Cystopteris fragilis 



Polypodium polypodioides 

 Polystichum acrostichoides 



XXX 



XXX 

 X .. X 



.. .. X 

 X X X .. X 

 .. X .. 

 XXX 



Aruncus vulgaris 



Asarum canadense .... 

 Botrychium virginianum 

 Cheilanthes tomentosa . 

 Cystopteris bulbifera . . 

 Dryopteris noveboracensis 

 Galium circaesans .... 



Heuchera spp 



Hydrangea arborescens 



Iris verna 



Phacelia brevistyla . . . 

 Smilacina racemosa . . 



X 

 X 

 X 



X X 



X X 

 .. X 



X 



+ 

 + 



