For this graceful little Fern, our Botanic Garden of 

 Glasgow is indebted to Dr. Gillies., who sent seeds which 

 were gathered in the neighbourhood of Mendoza, and 

 which soon vegetated in our stove, bearing fructification in 

 the same year that they were raised. 



In point of Genus, this Fern seems to be intermediate 

 between Nothocljena and Cheilanthes. But as, even in a 

 young state, the slightly revolute margin of the pinnules 

 never entirely covers the capsules, I have preferred placing 

 it in the former Genus ; from all the other known species 

 of which it is distinguished by its tender, glaucous, and 

 quite glabrous fronds. 



Fig. 1. Three ultimate Pinnules of a Frond, with perfect Sori. 2. Pinnule 

 with Fructification in a younger state. 3. Two Capsules. — Magnified. 



