HVTACEAE. 147 



Leaves alternate ; trees or shrubs, usually armed ; stamens 3-5 ; 



leaves 3- or more-foliolate 3. Zanthoxylon. 



Fruit indehiscent, syncarpous : 



Stamens as many as the petals ; fruit 4-G-celled ; monoecious ; 



prickly shrubs, usually climbing 4. Toddalia. 



Stamens usually double as many as the petals ; fruit 2-4-celled ; 

 unarmed trees : 

 Dioecious ; petals usually 2 ; fruit 2-celled ; leaves 3-foliolate 



5. Yepris. 

 Polygamous ; petals 4 ; fruit 4-celled ; leaves 1-foliolate 



6. Acronychia. 



Seeds exalbuminous ; flowers usually hermaphrodite : 

 Fruit dehiscent, capsular, 3-celled, each cell about 4-seeded ; trees 



with pinnate leaves and small leaflets 7. Chloroxylon. 



Fruit indehiscent, a berry : 

 Ovules 1 or 2 in each cell : 



Style short, persistent ; ovule 1 in each cell ; leaves 1-foliolate to 



pinnate 8. Glycosmis. 



Style articulate at top of ovary, deciduous : 

 Unarmed plants ; leaves pinnate with alternate leaflets : 

 Petals usually valvate ; cotyledons much crumpled ; 



stamens 10 9. Micromelum. 



Petals imbricate ; cotyledons plano-convex : 



Filaments dilated below ; stamens 8-10, anthers rather 



large 10. Clausena. 



Filaments subulate ; stamens 10, anthers small 



11. Murraya. 



Armed plants ; leaves 1 -3-foliolate or pinnate with opposite 

 leaflets : 



Leaves 3-foliolate or imparipinnate with opposite leaflets : 

 Calyx distinctly lobed : 

 Calyx 3-lobed ; stamens 6 ; leaves always 3-foliolate 



12. Triphasia. 

 Calyx 4-5-lobed ; stamens 8 or 10 ; leaves imparipinnate 



or 3-foliolate 13. Limonia. 



Calyx cupular, entire or obscurely 4-6-lobed ; stamens 



8-10 ; leaves always 3-foliolate 14. Luvunga. 



Leaves 1-foliolate : 

 Anthers linear-oblong ; stamens 8-10 ; disk columnar 



15. Paramignya. 



Anthers ovate-cordate or rarely linear-oblong; stamens 

 0-8; disk annular or cupular 16. Atalantia. 



