The Crijptogamous Plants of Dr. Roxburgh. 493 



obtuse, and from entire to serrate, or even gashed. Fructifi- 

 cations scattered, or in two lines, parallel with the nerves 

 of the segment. Involucre round. 



Nat. of Chittagong, near the Burning Wells. 



30. P. dichotomum. Thunb. Fl. Jap. 338. t. 37. good. 

 Fronds dichotomous, about half the divisions of the rachis 



naked, smooth ; leaflets pectinato-pinnatifid ; segments se- 

 parated to very near the base, linear, diverging, obtuse. 

 Fructifications in two lines, of minute spots, on the segments 

 of the pinnae. 



Acrostichum furcatum. Linn. sp. 1529. 



Nat. of the Molucca Islands. 



31. P. furcatum. R. 



Scandent. Fronds dichotomous, all the divisions (of the 

 rachis) furnished with diverging, linear, pectinato-pinnatifid 

 segments. 



Found in the forests of Pullo Pinang, running over fallen 

 trees, &;c. &c. to a great extent. 

 S2. P. multiflorum. R. 



Stipes smooth. Fronds (6-8 feet high,) suboppositely, and 

 alternately bipinnate below, and bipinnatifid, and finally 

 pinnatifid towards the top ; leaflets remote, fertile fine point- 

 ed ; segments thereof subensiform ; the larger gashed, the 

 smaller crenate. Fructifications numerous, scattered, (almost 

 confluent.) Involucre uncertain. 



Nat. of Amboyna. 



33. P. confertum. R. 



Stipes smooth, erect, (3-4 feet high,) fronds from bipinnate 

 below, to bipinnatifid, and finally pinnatifid towards the 

 top ; leaflets rather remote, sublinear, fine-fertile-pointed ; 

 segments broad-ensiform, somewhat incurved, from gashed 

 to obscurely crenate. Fructifications in numerous, large, 

 crowded spots, covering the whole of the back of the frond. 



Found by Mr. Roxburgh in Chittagongy under the shade 

 of trees. 



