Materials for a Flora of the Malayan Peninsula. 113 



Order IX. BIXINE^. 



Trees or shrubs with alternate minutely stipulate or exstipulate 

 leaves. Flowers regular, 1-2-sexual. Sepals 4 or 5 (rarely 2 to 6) 

 imbricate, free, or connate and bursting irregularly, usually deciduous. 

 Petals 4 or 5, or absent, imbricate or contorted, deciduous, often with 

 basal scales. Stamens hypogynous or sub-perigynous, (united into a 

 column in Byparosa) ; anthers 2-celled with porous or longitudinal 

 dehiscence. Disc thick, often glandular. Ovary free, usually 1-celled, 

 the placentas parietal. Styles and stigmas free or united. Fruit dry with 

 valvular dehiscence, the seeds along the middle of the valves ; or fleshy 

 and indehiscent. Seeds arillate, albumen fleshy, embryo axile, straight 

 or curved ; cotyledons f oliaceous. Distrib. Chiefly tropical ; genera 30 ; 

 species about 170. 



Tribe I. Bixinece. Petals broad, contorted, without 

 basal scales ; anthers elongate, opening by termi- 

 nal pores or short slits. 



Capsule with parietal placentas, 2-valved, 



softly muricate ... ... ... 1. Bixa. 



Tribe II. Flacourtice. Petals small and imbricate, 

 or absent. Anthers short, opening by slits. 



Flowers hermaphrodite ; petals 4 to 6. 



Stamens numerous ... ... 2. Scohpia. 



„ 5 or 6 ... ... 3. Erythrospermum, 



Flowers dioecious ; petals 0. 



Ovary 2- to 8-celled ... ... 4. Flacourtia. 



Tribe III. Pangice. Flowers dioecious, petals with 



an adnate basal scale or appendage ; fruit large, 



indehiscent. 



Sepals free. 



Sepals 5, imbricate. Petals 5. Stamens 



5 to 8. Stigmas 3 to 6 ... ... 5. Hydnocarpus. 



Sepals 4. Petals 8, in 2 rows ; Stamens 



20 to 30. Stigma 1 ... ... 6. Taraktogonos. 



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