SWISS FUBNS. 133 



easy to be distinguished. The leaflets are wedge-shaped, lobed, 

 with numerous veins meeting at the base ; they have the 

 sori at the edge of the lobes on the under side. 



14. Cheilanthes fragrans. 



is allied to Adiantum; it is tri-pinnate, with pinnated 

 segments and oblong-round entire lobes, with a smooth foot- 

 stalk longer than the limb. Fragile; old walls. Not 

 British, and perhaps a doubtful native of Switzerland. 



15. Allosorus crispus, Pteris crispa 

 (Cryptogramma). — Parsley-Fern. 



Fronds from six to twelve inches high, twice pinnate, on 

 slender stalks : the barren, resembling Parsley-leaves with 

 small egg-shaped, cut, or deeply-crenate, segments ; the 

 fertile thrice pinnate with thin linear segments, from having 

 their membranous edges turned down over the sori. Granite 

 Alpine rocks, growing to a fine size and often abundantly : 

 Gemmi-Pass. 



