Calamus, dioecia hexandria. 781 



Stems simple, perennial, climbing- to a great extent ; the ex. 

 trcmitics inserted in the armed sheaths of the leaves, includ- 

 ing- these, it is scarcely so thick as a common ratan. Leaves 

 oblong-, equally pinnate, nearly two feet long. Leaflets from 

 twenty to thirty on each side, equi-distant, alternate, linear 

 poli.shed, three-nerved; margins, apices, and nerres bristly ; 

 six inches long-, and scarcely half an inch broad at the broad- 

 est part. Petioles armed. Flagelli from the sheaths, sim- 

 ple, armed, as in the other species. Spathes numerous, 

 sheathing-, sub-cylindric, one for each division of the spadix, 

 even to the pairs of flowers. Spadices occupy the place of 

 the flagelli on a few of the spathes, decompound; primary 

 branches, four, five, or six, remote, flexuose, with about half 

 a dozen alternate, recurvate branches on each side. Herma- 

 phrodite and malefloivers in alternate pairs, the latter short- 

 pedicelled. Male. Calyx shorter than the corol, unequally 

 two, or three-toothed, corol supported on a fleshy gibbous 

 receptacle, border two or three-cleft. Filaments four, five, or 

 six. ylM</te»-s sagittate. Herjiaphrodite. Calyx ami corol 

 equal, gibbous, with a contracted, three-toothed mouth. 

 Filametits six, united in a ring round the lower half of the 

 germ; anthers sagittate, large, and seemingly fertile. Germ 

 ovate, one-celled, containing three seeds attache<l to the bot- 

 tom of the cell. Style scarcely any; stigma three-cleft; 

 segments rugose and recurvate. 



14. C. pencillatus. R. 



Scandent. Leaflets thirty-four pair, regularly alternate 

 except the terminal two, which are united, lanceolate, se- 

 ven to nine-nerved ; margins entire and smooth, a pencil of 

 bristles from the apex of each. Sheaths flagelliferous. 



Found by Mr. Roxburgh in the forests of Pulo Pinang 

 running over trees. It is more slender than the common 

 ratan, and less so than the next species, C. gracilis. 



15. C. gracilis. R. 



Scandent. Leaves with from six to ten pair of linear-Ian- 



