168 FLORA OF JAMAICA Eavenia 



FAMILY XLV. RTJTACEyE. 



Shrubs or trees, usually glandular-dotted and strongly 

 smelling. Leaves with pellucid dots, without stipules, generally 

 opposite, and compound, digitate or pinnate,, with 1, 3, or 5, or 

 more leaflets. Flowers hermaphrodite, polygamous, or dicecious ; 

 parts usually in 4's or 5's. Sepals and petals imbricate. 

 Stamens as many as, or twice as many as the petals, numerous 

 in Peltostigma. Carpels generally 4 or 5 (8 in Peltostigma), 

 united into a single 4-c-celled ovary, or free at the base and 

 united in styles or stigmas, or altogether free and 1 -celled. 

 Ovules generally 2 in each carpel, superposed, ascending, with 

 ventral raphe and superior micropyle, solitary in Glycosmis and 

 Triphasia, numerous in Citrus. Fruit various. Embryo straight 

 or curved. Cotyledons often fleshy. Endosperm present or 

 wanting. 



Species 800 or 900, natives of the temperate and warm 

 regions of the whole world ; specially numerous in S. Africa and 

 Australia. 



Calyx, 2 sepals larger. Corolla united below into a 



tube 1. Ravenia. 



Calyx regular, or with 1 sepal larger (Peltostigma). Petals 

 not united. 



Ovary 2-5-lobed. Fruit of 1-8 cocci. 



Leaves pinnate 2. Zantlioxylum. 



Leaves digitate. 



Stamens numerous. Cocci 8 3. Peltostigma. 



Stamens 4-5. Cocci 5 4. Esenbeckia. 



Ovary entire. 



Fruit baccate. 



[Stamens 10. Leaves 1-5-foliolate Glycosmis.'] 



[Stamens 6. Leaves 3-f oliolate Triphasia.] 



[Stamens numerous. Leaves 1-f oliolate... Citrus. ~\ 

 Fruit drupaceous. 



Floral parts in 4's. Ovary 1-celled 5. Amyris. 



Floral parts in 5's. Ovary 3-celled 6. Spathelia. 



1. RAVENIA Veil. 



Shrubs or trees. Leaves opposite, 3-foliolate or simple. 

 Peduncles axillary, few-flowered. Sepals 4 or 5, 2 outer larger, 

 enclosing the bud. Corolla : tube straight, limb oblique with 

 4 or 5 somewhat unequal segments. Disk cup-shaped, crenate, 

 4-5-lobed, enclosing the ovary. Stamens 4 or 2 ; filaments 

 adherent to the corolla-tube ; anthers 2-4 at the corolla-throat, 

 staminodes 3-1, linear, exserted. Ovary of 4-5 carpels, 

 immersed in the disk; style 1, slender; stigma 4 5-lobed ; 

 ovules 2 in each cell, superposed. Capsule surrounded by the 



