4 ADIANTUM CONCINNUM. 



Tripinnate, glabrous, slender, membranaceous, the pinnules 

 being rhomboidal and obliquely wedge-shaped at the base; the 

 lobes crenate, blunt, and mostly entire. The lowest pinnules 

 of each primary and secondary pinna are upright, and appressed 

 to the rachis. 



Sori small, about eight to ten in number on each pinnule ; 

 the indusium reniform. 



The stipes somewhat short, the main rachis straight and 

 thick; stipes and rachis glabrous, shining, and ebeneous; when 

 young, green. Fronds of about an equal width for two-thirds 

 of their length, then gradually tapering to the apex, lateral, 

 attached to a somewhat creeping rhizoma. 



It requires to be cultivated in a stove, indeed all the 

 Adiantums flourish best in heat, even the hardy species. The 

 British Adiantum capillus-veneris, and the North American 

 A. pedatum, although both flourish in the open air in this 

 climate, will grow so much more luxuriantly in a stove, that 

 an ordinary Fern grower is astonished at the increased size 

 and healthy appearance of these species. 



A. concinnum requires shade. 



It appears to be in most of the Nurserymen's Catalogues, as 

 it is in those of Messrs. Veitch, of Exeter; rlollisson, of Tooting; 

 E. G. Henderson; A. Henderson; Backhouse, of York; and 

 Booth and Son, of Hamburg. 



Messrs. Backhouse, of York, have sent me a plant of this 

 Fern; and Mr. Henderson, of Wentworth, and Mr. Norman, of 

 Hull, have forwarded fructified fronds. 



The illustration is from a plant in my own collection. 



