I2g. CELASTRACEAE 33I 



2-celled, with i erect ovule in each cell. Stigma i, small. Shrubs. 

 Leaves opposite, entire. Inflorescences terminal and axillary. — 

 Species i/ Madagascar. [Subfamily TRIPTERYGJOIDEAE.] 



Ptelidium Thouars 



P'ruit not winged. Stamens inserted on the edge or outer face of the disc. 

 Anthers usually opening inwards. [Subfamily CASSINIOIDEAE.] . 8 

 a. Ovary i-celled. Ovulei^ 2 — 8, erect. Style lateral. Stigma peltate. 

 Flowers 5-merous. Fruit with a thin endocarp and a thin-fleshy 

 mesocarp. Seeds with copious albumen. Leaves opposite. — Species 

 5. East and South Africa and Malagasy Islands. (Including Cath- 

 as/riim Turcz.) Pleurostylia Wight & Am. 



Ovary 2 — 4-celled, with i — 2 ovules m each cell. Style terminal, rarely 



lateral in the fruit 9 



9. 0\ules pendulous. Flowers 5-merous. Fruit a drupe. Glabrous shrubs. 

 Upper leaves opposite, broad. — Species i. South Africa (Cape Colony). 

 Yields timber. (Under Cassine L.) Maurocenia L. 



Ovules erect lO 



10. Stigma entire. Anthers turned inwards. Petal-hke staminodes usually 



present. Flowers hermaphrodite. Leaves opposite, unequal, the lower 

 lanceolate, the upper oval. Trees. — Species i. Isle of Reunion. 



Herya Cordem. 



Stigma 2 — 4-lobed, very rarely entire, but then anthers turned outwards. 



Petal-like staminodes none 11 



11. Flowers in short racemes, unisexual, 4-merous. Stamens inserted at the 



margin of the thin disc ; filaments strap-shaped. Fruit almost dry. 



Glabrous shrubs. Leav^es opposite. — Species i. South Africa (Cape 



Colon}'). (Under Elaeodendi'on Jacq.) . Lauridia Eckl. & Zeyh. 



Flowers solitary or in fascicles or cymes ; usually hermaphrodite . . 12 



12. Leaves alternate. Flowers 5-merous. Fruit almost dry. — Species 20. 



Tropical and South Africa. (Under Cassine L. or Elaeodendron Jacq.) 



Mystroxylon Eckl. & Zeyh. 

 Leaves opposite or the upper alternate 13 



13. Pericarp neither fleshy nor hardened. Seeds exalbuminous. Anthers 



opening outwards. Glabrous shrubs. Leaves more or less distinctly 

 toothed. — Species 3. South Africa and Madagascar. (Under Schrehera 



Thunb.) Hartogia Thunb. 



Pericarp more or less fleshy or hardened. Seeds albuminous. Anthers 

 usually opening inwards 14 



14. Pericarp fleshy. Leaves opposite. — Species lO. South Africa. 



Cassine L. 



Pericarp dry. — Species 17. Tropical and South Africa. Some species 

 yield timber, dyes, edible fruits, and medicaments. (Under Cassine L.) 

 (Plate 82.) Elaeodendron Jacq. 



