160 THE CREEPING SELAGINELLA GROUP. 



Selaginella Douglasii. 



The species named Selaginella Douglasii is one of the 

 rarest of the fern allies in collections. It is reported to 

 grow in northern California, Oregon, Washington, and 

 British Columbia, but it appears to be seldom found. 

 It is more rigid than Selaginella apns, but has much the 

 same appearance, spreading over the ground and rooting 

 from various parts of the stem. 



This is a somewhat larger plant than the creeping 

 selaginella, often reaching a foot in length. It is regu- 

 larly and alternately branched, and these branches are 



Selaginella Douglasii. 



branched once or twice more in the same manner. The 

 leaves are similar in size to those of Selaginella apus, but 

 firmer in texture. The lateral rows are very blunt, but 

 the small leaves, though blunt, are tipped with a short 

 whitish point. The leaves are thickly crowded on the 

 branches and branchlets, the lateral ones, as usual, 



