430 TETRANDR1A MONOGYNI \. PofllOS. 



3. T. quadrispinosa, R. 



Nut with two opposite pairs of straight, acute, spinous 

 boras, 



A native of Silhet, where it is found floating on lakes, and 

 pools of fresh water; its kernels are also esculent. 



POTIIOS. Schreb. gen. N. 210. 

 Spat he sub-cylindric. Spadix covered with florets. Calyx 

 none, or four-petalled. Corol none. Stamina indefinite. Germ 

 one-celled, from one to three-seeded ; attachment of the ovula 

 inferior (in heterophylla superior.) Berry one-celled, rarely 

 many-seeded. Embryo uncinate, without perisperm. 



1. P. scandens. Linn. sp. pi. ed. Wifld. i. 684. 



Parasitic, rooting - . Petioles as broad as the lanceolar leaves. 

 Flowers axillary. Spadix gobular, reflex. 



Ana Parua. Rheed. Ilort. JIal. vii. p. 75. /. 40. 



Adpendix duplo folio. Rumph. Amb. v. 4.01). /. 184.,/! 2. 



A native of Chittagong-, Malabar, and of Ainboyna, and 

 other eastern Islands. Flowering- time in the former country, 

 the month of April. 



Stems as thick as a slender ratan, often ramous, rooting- upon 

 trees in the most shady forests, round, smooth, and less suc- 

 culent than any other species which I have yet met with, ex- 

 cept P. gracilis. Leaves alternate, petioled, lanceolate, entire, 

 smooth ; length from two to four inches, breadth about an 

 inch. Petioles most amply winged, so as to be nearly as broad 

 as the leaver themselves,ahnost as long*eqaalIy entire, smooth, 

 and marked with similar veins. Peduncles axillary, solitary, 

 clothed with many small, ovate, bractiform scales up to the 

 spathe, where they are completely recurved. Spathe boat- 

 shaped, erect. Spadix globular, reflex. Calyx, or corol, 

 some roundish scales mixed amongst the germs, and of near- 

 ly the same length, the exact number to each germ not ascer- 

 tained. Stamina, about four obovate scales to each germ, 



