The Cryptogamous Plants of Dr. Roxburgh. 499 



In the double lines and involucres, it approaches to 

 Smith's character of Hemionitis, 



12. A. mixtum. R. 



Stipes smooth ; fronds lanceolate, alternately pinnate ; 

 leaflets ensiform, with tapering, serrate, fertile points, the 

 rest more or less pinnatifid, with the segments thereof round- 

 ed. Fructifications in short lines, on the veins of the segments ; 

 the lower one, at least, always double. Involucre in the 

 single lines, separating inwards ; in the double, both ways. 



Nat. of Amhoyna. 



13. A. multiflorum. R. 



Fronds pinnate, (3-6 feet high,) with angular, hairy pe- 

 tioles ; leaflets numerous, alternate, ensiform, pinnatifid. 

 Fructifications in two rows, of short, parallel, single lines 

 on the veins of the segments of the pinnae. Involucre sepa- 

 rating on the side next the nerve of the segment. 



Nat, of the Malay Islands, under the shade of trees. 



14. A. bipinnatum. R. Icon. Roxb. Suppl. 5, t. 1. 



Fronds alternately-bipinnate, (3-4 feet high ;) pinnae re- 

 mote, recurved ; leaflets broad-ensiform, smooth, remotely 

 crenate, truncate at the base. Fructifications in minute, 

 single, parallel lines, on the veins of the segments of the 

 leaflets. Involucre separating inwards. 



Nat, of Amboyna, but introduced into the Botanic Garden 

 at Calcutta, where it fructifies during the rains. 



Root, the united bases of the stipes form something like 

 a very short, oblique, ragged, blackish one, or a trunk, 

 which sends forth numerous radical fibres into the ground. 



Stipes 18 inches long, nearly 4-sided ; upper side grooved, 

 toward the base somewhat scaly, otherwise they are smooth. 



Fronds alternately bipinnate, ovate-oblong, 2-S feet long. 

 Pinnae alternate, 8-12 inches long. Pinnules sub-opposite, and 

 alternate, sessile, ensiform, crenate, base truncate, smooth, 

 2-3 inches long. 



Fructifications in parallel lines. 



