40 GRAMM1TIS. 



8 inches. Barren more numerous and 

 rather shorter. Root tufted. Growing in 

 masses. Very delicate and compound. 

 Barren frond not unlike much divided and 

 crisped parsley. Pinnae alternate ; on the 

 larger, secondary ones alternate also. Pin- 

 nules small, thin, stalked, indented, and 

 somewhat wedge-shaped ; opposite or alter- 

 nate. Fertile narrower. Pinnse more 

 opposite, secondary and pinnules mark- 

 edly alternate; pinnules stalked, oblong- 

 oval. Sori distinct, though soon uniting 

 into a line, and partially concealed by the 

 reflexed margins of the pinnule, which 

 almost meet behind. May. Early deci- 

 duous. Rocks, stones, and walls, in the 

 mountainous districts of the North. Easy 

 of cultivation. Tender, pretty, and grace- 

 ful. 



GRAMMITIS. 



Sori on the back, in lines : back scaly. 

 No Indusium. 



GRAMMITIS CETERACH. (Scaly Grammitis.} 

 Fig. 37. From 3 to 6 inches. Root tufted. 

 Growing in circular masses. A low, 

 broadish, plant, composed of mere long, 

 simple, leathery, shoots, or fronds, incised 



