Fig. 146. 
Lomaria alpina. 
.Sprengel, systema vegetabilium iv. 62 (1827). 
1 , a scale of the rhizome 5 2 , a sterile segment of frond; 3 , a fertile 
segment of frond; 4 diagram of fruit-bearing segment; 5, spore-case; 6 , 
spores; all enlarged, but to various extent. 
