278 INDEX TO THE SCIENTIFIC NAMES. 



SELAGINELLA. Pringlei, 163. 



acanthonota, 142 rupestris, 139. 

 apus, 155. acanthonota, 142. 



arenaria, 146. clensa, 142. 



arenicola, 144. Fendleri, 142. 



Bigelovii, 146. rupincola, 142. 



bryoides, 148. Sherwoodii. 142. 



Caribensis, 165. tortipila, 142. 



cinerascens, 147. rupincola, 142. 



densa, 142. Sherwoodii, 142. 



Douglasii, 160. spinosa, 150. 



lepidophylla, 161. Strnthioloides, 150. 



Ludoviciana, 158. tor ti pi la, 142. 



mutica, 144. Watsoni, 143. 

 Oregana, 148. mutica, 144. 



pilifera^ 164. 



