Flora of the Malayan Peninsula. 



P. pohjcarpa. 

 P. calocarpa. 



Seeds faintly ridged on the dorsal surface, the ventral 

 surface with a shallow groove .. .. ..11. 



Erect shrubs, usually small : — 

 Flowers 4-merous : — 



Leaves with a strong pale intra-marginal nerve . . 12. 



Flowers 5-merous : — 

 Flowers shortly pedicellate, in dense globular cymules at 

 the ends of the long-peduncled branches of a terminal 

 umbellate cyme ; leaves deciduously puberulous, with 

 9 to 13 pairs of main-nerves ; fruit -3 in. long ; seeds 

 4-ridged on the dorsal surface, slightly concave on the 

 ventral 



Flowers sub-sessile, in short condensed diehotomous sessile 

 axillary cymes ; leaves with scurfy pubescence and 8 to 11 

 pairs of main-nerves ; seeds 5-ridged on the dorsal and 

 broadly grooved on the ventral surface 

 Flowers in a terminal umbellately branching cyme : — 

 Seeds with a single dorsal ridge, the ventral surface 

 plane : — 



Leaves quite glabrous : — 



Leaves 6 to 10 in. long ; main-nerves 12 to 15 



pairs .. .. .. .. 15. P. Griffithii. 



13. P. multicapitulata. 



14. P. tortilis. 



16. 

 17. 



Leaves usually under 6 in. long, main-nerves 8 to 

 10 pairs 

 Leaves adpressed-pubescent, 6 to 12 in. long 

 ."Seeds with a single dorsal ridge, the ventral surface 

 with a groove ; leaves 5 to 8 in. long, quite glabrous, 

 main-nerves 7 to 8, rarely 10 pairs 

 Seeds with 5 ridges on the dorsal surface, the ventKal 

 surface plane :— 

 Leaves glabrous : — 



Leaves oblong-elliptic to oblanceolate-elliptie, 3-5 

 to 8 in. long ; fruit "25 in. long 

 Leaves softly pubescent : — 



Leaves elliptic to elliptic-oblong, the bases cuneate 

 rounded or cordate, 3'5 to 5 in. long ; fruit "25 to 

 •3 in. long 



Leaves elliptic, the upper surface glabrous except 

 the midrib, 5 to 7 in. long ; fruit -45 in. long 

 Seeds 5-ridged on the dorsal surface and 2-grooved on 

 the ventral ; leaves glabrous on the upper surface, 

 ■their margins crenulate . . . . . . 22. 



Seeds with 5 ridges on the dorsal surface and 1 ridge 

 on the ventral; leaves glabrous, usually oblanceolate 23. 

 Seeds 4-ridged on the dorsal surface, plane on the 

 ventral : — 



Leaves elliptic, tapering equally to each end, 9- to 

 10-nerved; calyx-lobes very long caudate-acuminate 24. 

 Leaves obovate-oblong or obovate-oblanceolate, 10- to 

 14-nerved ; calyx-lobes short, broad, blunt . . 25. 



P. angulata. 

 P. Helferiana. 



18. P. viontana. 



19. P. viridiflora. 



20. 



21. 



P. Birchiana. 

 P. fulva. 



P. fulvoidea. 

 P. stipulacea. 



P. Curtisii. 

 P. rldnocerotis. 



