500 



21ie Cryptogamous Plants of Dr. Roxburgh. 



Involucre originating from a vein, separating inwards or 

 both ways. 



15. A. cicutarium. Linn. 



Shoots creeping, scaly. Stipes alternate, polished ; fronds 

 alternately subtripinnate, as broad as long, (6-8 inches high ;) 

 ultimate divisions subovate, with the anterior margins cre- 

 nate-dentate, firm, and smooth on both sides. 



Nat, of the mountains north of Rohilcund. 



16. A. tripinnatum. R. 



Stipes polished, grooved ; fronds {2 feet high,) alternately 

 tripinnate ; ultimate divisions thereof wedge-shaped with 

 their apices prsemorse, deeply notched, and generally two or 

 three-flowered. 



Nat. of the Molucca Islands. 



17. A. woodwardioides. R. 



Stipes smooth ; fronds (2 feet high,) subovate, smooth, 

 alternately-bipinnate ; leaflets broad-ensiform ; those of the 

 inferior pinnae pinnatifid ; of the upper more or less serrate. 

 Fructifications in oblong spots along the nerve, but forming a 

 sharp angle with it. Involucre separating towards the nerve. 



Found at Chittagong by Dr. Buchanan. 



11. HEMIONITIS. 



Fructifications digested in scattered or branched lines, 

 each of them double, with a vein running between. Involucre 

 originating from a vein^ and each separating outwards. 



1. H. cordifolia. R. Icon. Roxb. 14, t. 103. 



Fronds cordate, obtuse, entire. Lines of the fructifica- 

 tions decussated, forming rhomboidal interstices. 



Beng. Chacooly. 



Nat. of Bengal. Grows in a rich wet soil about Calcutta. 

 Root fibrous, perennial. 



Fronds oblong-cordate, obtuse, entire ; smooth on the upper 

 surface, a little hairy underneath; from 3 to 6 inches long; 

 the fructiferous fronds smallest, and on much longer stipes. 



