10 A.DIANTUM TRAPEZIFORME. 



jreen colour; in form the fronds are ovate-rhomboid al, acumi- 

 late, having the apex serrate and subcrenate. 



The length of the frond varies from two to four feet. 



The stipes, rachis, and pedicels, ebeneous and densely black; 

 near the base are a few thin scales. 



Fronds lateral, and attached to a short creeping rhizoma; 

 glabrous. 



Sori large, oblong, prominent, with reniform indusium. 



Adiantum trapeziforme is a native of the West Indian Islands 

 — Jamaica, Cuba, Mexico, Central America, Caraccas, Brazil, 

 Vera Cruz, and Guatemala. 



My thanks are due to Messrs. Backhouse, of York; and to 

 Mr. Ingram, gardener to Earl Brownlow, (Belton,) for plants 

 of this species. 



It is in the Catalogues of Messrs. Backhouse, of York; Rol- 

 lisson, of Tooting; Booth and Son, of Hamburg; Veitch, of 

 Exeter'; Sim, of Foot's Cray; A. Henderson, of Pine-apple 

 Place; and Masters, of Canterbury. 



The illustration is from a frond sent by Mr. Henderson, of 

 Wentworth. 



