296 115- RUTACEAE 



Seeds exalbuminous, Corolla while, red, violet, or wanting. Leaves 

 simple, undivided. [Tribe DIOSMEAE.] 7 



5. Stamens 8 — 10. Carpels 4 — 5. Trees. Leaves alternate, undivided. 



Flowers poU'gamous. — Species i. Madagascar. (Under Melicope 



Forst.) Pelea A. Gray 



Stamens 3 — 5 6 



6. Leaves opposite. Flowers unisexual. Carpels 4 — 5. Styles united. 



Seeds oblong. Unarmed plants. — Species 15. Madagascar and 

 neighbouring islands. Some are used medicinally. . Evodia Forst. 

 Leaves alternate. Carpels i — 5. St3des free or united above. — Species 

 30. '1 ropical and South Africa. Some species yield timber, vegetables, 

 condiments, and medicaments. (Including Pierota P. Br., under 

 Zantluxylnin L.) Fagara L. 



7. Carpels i — 2. Fertile stamens 4. Flowers unisexual or polygamous. 



Shrubs. [Subtribe empleurinae.] 8 



Carpels 4 — 5. Fertile stamens 5. Flowers hermaphrodite or polygamous. 9 



8. Flowers dioecious. Sepals united at the base. Petals 4. Disc 4-lobed. 



Anthers roundish, without terminal glands. Leaves needle-like, three- 

 edged, without glandular dots. — Species i. South Africa (Cape 



Colony) Empleuridium Sond. 



Flowers polygamous-monoecious. Sepals united beyond the middle. 

 Petals wanting. Disc none. Anthers oblong, with a gland at the top. 

 Ovary beaked. Stigma entire. Leaves linear-lanceolate, flat, gland- 

 ular-serrate. — Species I. South Africa (Cape Colony). Used medicin- 

 ally Empleurum Soland. 



9. Endocarp cartilaginous, adnate at the back and separating from the 



tuberclcd exocarp at the margins only. Seeds with thick cotyledons. 

 Ovules one above the other. Ovary with a long and thin stalk. Stam- 

 inodes linear, glandulose. Trees. — Species 2. East and South Africa. 



[Subtribe calodendrinae.j Calodendron Thunb. 



Endocarp separating from the exocarp. Seeds with flat cotyledons. 

 Ovules usually side by side. Shrubs. [Subtribe diosmixae.] . . 10 



10. Staminodes 5 11 



Staminodes none 15 



11. Style long. Stigma small 12 



Style short or rather short. Stigma capitate or discoid. Inflorescences 



terminal 13 



12. Petals clawed. Stamens with glabrous filaments and gland-tipped anthers. 



Staminodes petaloid, with hairy claws. Disc crenatc or lobed. Carpels 

 2—4. Flowers in terminal umbels or heads, rarely solitary and axillary. 

 — Species 100. South Africa (Cape Colony). Some are used as orna- 

 mental or medicinal plants. (Plate 73.) . . Agathosma Willd. 

 Petals subsessile, glabrous. Carpels 5. Flowers solitary or in cymes in 

 the axils of the leaves. — Species 20. South Africa (Cape Colony). 

 Some are used medicinally Barosma Willd. 



