128 



King & Gamble — Flora of the Malayan Peninsula, [No. 4, 



5. 



TJ. ferrea. 



6. 



TJ. glabrata. 



7. 



TJ. Kunstleri. 



8. 



TJ. Wrayi. 



Flowers 1*5 in. long; leaves broadly oblong or 



ovate-rotund, 5 to 7 in. long ... ... 3. TJ. sclerophylla. 



Flowers 1 in. long ; leaves 4 or 5 in. long, oblong 



or ovate, never rotund-ovate ... ... 4. 17. pedicellate. 



Calyx-lobes filiform, longer than the tube, spread- 

 ing ; tube of corolla very slender ; capsules on long, 

 slender stalks : — 

 Young branches, under surfaces of leaves, and 

 capsules rusty-pubesoent ... 



Young branches and capsules glabrous ; leaves 

 slightly pubescent on the under surface only 

 Leaves glabrous or nearly so on both surfaces :— 

 Lobes of the calyx shorter than the tube 

 Lobes of the calyx as long as the tube ... 

 Lobes of the calyx short, broad, blunt : — 



Leaves quite glabrous, not glaucescent beneath : — 

 Leaves 1*75 to 2'5 in. long : — 

 Leaves with 3 or 4 pairs of nerves ; tube of calyx 

 densely pubescent, the lobes of the limb sub-glab- 

 rons ... ... ... 



Leaves with 5 or 6 pairs of nerves ; tube and lobes of 

 calyx pubescent externally 

 Leaves 3'5 in. or more in length : — 

 Nerves of leaves 5 or 6 pairs ... 



Nerves of leaves 3 pairs 

 Leaves glabrous, glaucescent beneath ; nerves of leaves 7 

 or 8 pairs, the reticulations transverse and very distinct 

 beneath ... ... .., ... ... 12. TJ. pteropoda. 



Leaves glabrous, but the 4 or 5 pairs of main-nerves with 

 tufts of hair on the lower surface, at their union with the 

 midrib ... ... ... ... ... 13. TJ. Gambier. 



Leaves uniformly canescent beneath : nerves 5 or 6 pairs 14. TJ. canescens. 

 Under surfaces of midrib and the 4 to 6 pairs of main- 

 nerves laxly hirsute, sometimes with tufts of hair in the 

 nerve-axils ... ... ... ... ... 15. TJ, dasyoneura. 



Calyx-tube long, the teeth very short and blunt : — 

 Nerves of leaves 6 to 8 pairs, stout, and bearing like the 

 midrib and transverse veins short pale-brownish hairs ... 16. TJ. attenuate. 



1. Uncaria Roxburghiana, Korth. in Ver. Nat. Gesch. Bot. 172. 

 Young branches obtusely 4-angled, densely clothed with minute, par- 

 tially deciduous, harsh, rusty tomentum. Leaves coriaceous, ovate, 

 acuminate sometimes caudately so; the base rounded, emarginate or 

 minutely cordate ; both surfaces reticulate, the upper strigose-scabrid, 

 the lower with longer curved hispid hairs ; main -nerves 4 or 5 pairs, 

 curved, spreading, ascending, depressed on the upper and prominent on 

 the lower surface like the midrib; length 2"5 to 3*5 in. j breadth 1*5 to 



9. 



10. 



10. 



11. 



TJ. ovalifolia. 



TJ. jasminiflora. 



TJ. jasminiflora 

 var. macrophylla. 

 TJ. trinervia. 



