206 C07lV0lvulace(E. \_Argyreia. 



nate, aplculate, glabrous above, more or less densely white- 

 silky beneath, petiole 1-2 in., densely silky ; ped. articulated 

 to stiff stout peduncle 1-3 in. long, bracts oblong, acute, 

 fleshy, caducous, buds pointed, silky at tip ; sep. about f in., 

 ovate, subacute, fleshy, silky-pubescent outside, cor. - tube 

 ii-2in., narrow, limb 2^-3 J in. diam., lobes shallow, emar- 

 ginate ; ov. glabrous, stigmas blunt ; fruit nearly globose, 

 under i in., apiculate, smooth, shining, pale brown. 



Climbing over rocks in the dry districts; rather rare. Trincomalie; 

 Kirinde; Bibilc ; Nilgala; Mannar. Fl. Dec-March; at first pure 

 white, becoming pale cream-coloured, deliciously sweet-scented. 



Also in S. India. 



A beautiful plant. The flowers open at night; they become quite 

 yellow when withered. 



R. hypocrateriforviis^ Chois., is given in DC. Prod. ix. 326, for Trin- 

 comalie, but R. oinuta may have been intended. It is, however, common 

 in Western India, and should be looked for here ; but the differences 

 from R. 07-nata seem very slight. 



3. ARCYREIA, Lour. 



Semi-shrubby, stems stout, more or less twining, fl. large, 

 bracteate, usually 3 or more in axillary cymes ; sep. 5, nearly 

 equal, much imbricate, either enlarged or unchanged in fruit; 

 cor. funnel-shaped, limb scarcely lobed, stam. 5, not exserted; 

 fil. often unequal ; ov. 4-celled with one ovule in each cell, 

 style long, stigmas 2, globose ; fruit fleshy or dry, indehiscent, 

 1-4 seeded ; cotyledons much crumpled, usually green. — Sp. 

 30 ; 25 in Fl. B. Ind. 



Sep. much enlarged in fruit enclosing it . .1. A. TILI.EFOLIA. 

 Sep. not enclosing fruit. 



L. silky silvery-white beneath . . . 2. A. SPLENDENS. 



L. nearly glabrous or hairy beneath. 

 Sep. oval, obtuse. 



I'eduncles over 3 in. . . . . 3. A. populifolia. 



Peduncles under 3 in 4. A. po.macea. 



Sep. linear, acute 5. A. choisvan.\. 



I. A. tiliaefolia, U'/^'-/!^, Ic. iv. pt. 2, 12 (1850). Ma-banda, S. 



Ipomcca caiiipaniilala^ rvloon Cat. 14 (non L.). Rivca tiliccJolia,Q\\Qt\s.^ 

 Thw. Enum. 209. C. P. 2848. 



Fl. B. Ind. iv. 184. Wight, Ic. t. 1358. 



Stems stout, very long, more or less pubescent, }'oung 

 parts tomcntose ; 1. 2^-5 in., ovatc-rotundate, deeply cordate 

 with rounded lobes at base, acute or apiculate, nearly glabrous 

 above, densely but finely pubescent beneath, lat. veins 

 numerous, petiole longer than 1., stout, pubescent, prehensile ; 



