1897.] G. King — Materials for a Flora of the Malayan Peninsula,. 153 



Petals 2 or ; stamens 2 ; pod turgid snbglobose, 



wingless, dehiscent 

 Anthers versatile : — 



Corolla complete, i.e., with 5 petals ; sepals 5 ; (stamens 

 free) : — 



Seeds with albumen ; leaves 1-foliolate 2-lobed, rarely 



entire, rarely by fission 2-foliolate 



Seeds without alhumen ; leaves even-pinnate, 2-3- 



(rarely 1-) jugate ... 



Corolla incomplete, i.e., with fewer than 5 petals ; 

 sepals 4 : — 



Petals present ; sepals green ; (leaflets even-pin- 

 nate) : — 



Petals 3 ; stamens 3 monadelphous 

 Petal solitary : — 



Calyx-lobes subvalvate ; stamens monadelphous 

 9, all or only 2 perfect, funiculus of seed thick 

 arillate ... ... ... ,,, 



Calyx-lobes much imbricated ; stamens free 3 ... 

 Petals ; sepals coloured : — 



Leaflets even-pinnate ; stamens 3-8 ... 

 Leaflets alternate ; stamens 8-10 

 Leaves 2-pinnate ; (anthers versatile) : — 

 Calyx segments subequal; stigma peltate 

 Calyx segments manifestly unequal, the lowest lobe cucul- 

 late larger than the rest : — 

 Pod wingless 

 Pod winged : — 



Wing extending all along the upper suture 

 Wing apical, (pod samaroid) ... 



46. Dialium. 



47. 

 48. 



Bauhinia. 

 Cynometra. 



49. Tamarindus. 



50. 



SlNDORA. 



51. 



Afzelia. 



52. 



Saraca. 



53. 



Crudia. 



54. 



Peltophorum. 



55. 



CiESALPINIA. 



56. 



Mezoneuron. 



57. 



Pterolobium. 



44. Cassia Linn. 



Erect shrubs or trees, rarely herbs. Leaves simple, abruptly 

 pinnate. Floivers usually large and showy, in axillary racemes and 

 terminal panicles. Calyx-tube very short ; sepals broad or narrow, 

 imbricated. Petals 5, imbricated, subequal, usually broad. Stamens 

 normally 10, but rarely all perfect, 3-5 being often reduced to stamino- 

 dia or altogether absent ; anthers mostly but not invariably basihxed, 

 dehiscing by terminal pores or with the slit more or less continued lon- 

 gitudinally. Ovary sessile or stalked, many-ovuled ; style incurved, 

 stigma terminal. Pod very variable, terete or flat, usually septate, the 

 albuminous seeds flattened, sometimes parallel with the valves, some- 

 times with the septa, dry, dehiscent or indehiscent. Species 340, spread 

 everywhere in the tropics, a few extra-tropical. 



J. II. 20 



