428 Piperacecu. [Piper. 



Endemic. 



Readily known by its small thick leaves very prominently veined 

 beneath. Originally described from Walker's specimens (No. 31). 



6. P. trineuron, Aliq. in Lond. Journ. Bot. v. 555 (1846). 



Thw. Enum. 293. P. instilare, Cas. DC. 1. c. 262, and P. ceylanicum^ 

 Cas. DC. 1. c. 242 (non Miq.). C. P. 2175. 

 Fl. B. Ind. V. 91. 



Stems long, slender, very much thickened at nodes, 

 glabrous ; 1. 2-4 in,, narrowly oblong-lanceolate, tapering to 

 both ends, somewhat acuminate, obtuse, glabrous, 3- (rarely 5-) 

 nerved from the base, with several other very oblique lat. 

 veins from midrib, petiole \ in., slender, male spikes not seen, 

 ' 2-3 in., stam. 2,' fem. spikes 2-3 in. very slender, erect, fl. 

 rather distant, rachis glabrous, styles 3 ; fruit over \ in., rather 

 distant, globose. 



Var. /5, laxiflorum, Trim. Sysi. Cat. Ceyl. 74. Miildera diuftdra, 

 Thw. Enum. 428. C. P. 3738. 



L. larger, 5-7 in., lanceolate; fl. more distant. 



Forests of moist region, in lower montane zone ; rather rare. Am- 

 bagamuwa; Hantane; Hunasgiriya. Var. /3, in moist low country. 

 Pasdun Korale ; Singhe Raja Forest ; Mapalagama, S. Prov. Fl. March. 



Endemic. 



First described from Walker's collections (No. 1784). Distinguished 

 by its narrow leaves. Var. /3 is scarcely worth distinction, but was 

 referred to a different genus by Thwaites. 



7. P. arg-yrophyllum, Miq. Syst. Pip. 330 (1843). Wal- 

 grammiris-wel, S. 



Thw. Enum. 293. Cas. DC. in DC. Prod. xvi. i, 364. C. P. 2625. 

 Fl. B. Ind. v. 93. Wight, Ic. t. 1941. Miq. 111. Pip. t. 56. 



Stems woody, attaining 2i in. in diam., with grey 

 slightly rough bark, cylindrical or oval, much thickened or 

 globose at nodes, with many rootlets ; 1. 4-7 in., ovate or 

 ovate-lanceolate, rounded and nearly equal-sided at base, 

 suddenly acuminate, acute, quite glabrous, 5-veincd from base 

 with usually 2 more veins from midrib, coriaceous, shining, 

 paler or whitish beneath, petiole |-i in., stout; fl. dioecious; 

 male spikclets very slender, 4-6 in., bracts large oval, with 

 raised margins; fem. spikes slender, bracts decurrent, rachis 

 glabrous, fl. numerous ; stam. 2 ; stigmas 4 (or 3) ; fruiting 

 spike 4-7 in., pendulous, fruit crowded, small, \ in. or rather 

 more, broadly ovoid (slightly tapering at top when dry), 

 minutely apiculate, dark green, bracts with raised margins, 

 free part short fleshy, cup round fruit very shallow, oval, 

 bractlcts with a rinir of hair within. 



