TAB. LXXII. 



Cheilanthes inteamabginalis, Hook. 

 Var. grosse serrata. 



Cheilanthes intramarginalis, Hook. Sp. Fil. 2 p. 112, (which 

 see for description, synonyms, and remarks). Metten. Cheil- 

 anthes, p. 49. 



Var. Segmentis fertilibus grosse serratis. Metten. 1. c. p. 50, 

 f. 38-41. (Tab. Noste. LXXXII.) 



Pterie fallax. Mart, et Gal. Fil. Mex. p. 53, t. 14, f. 2. 



Hab. Mexico and Guatemala, Martens et Galeotti, Volcan 

 de Agua, Guatemala, elev. 6000-7000 feet, Osbert Salvin, 

 Esq. 



In what has been considered the normal state of this 

 plant, the sterile fronds alone exhibit, and very indistinctly, 

 serratures; the fertile fronds none. But beautiful specimens 

 before us of this species (some of them 18 inches long), 

 in full fructification, have the segments so strongly serrated 

 that I at first looked upon this as a new species, and it 

 certainly is that state of Cheilanthes intramarginalis, which 

 Martens and Galeotti published as distinct from that species 

 under the name of Pter is fallax. It is a satisfaction to us to 

 find that Mettenius in his recent work on the Genus Cheilan- 

 thes, agrees with us in referring the plant to Cheilanthes, rather 

 than to Pteris, or Allosorus, or Pellcea, or Cassebeera, or 

 Platyloma, in which several genera it has been placed according 

 to the respective views of authors who have written upon it. 



Tab. LXXII. Represents a fertile frond of Cheilanthes 

 intramarginalis, var.; natural size. Fig. 1. Fertile pinna. 

 /. 2. Portion of an involucre ; and /. 3. Portion of a sterile 

 pinna ; — magnified. 



Cent. 



