420 lv. coMBRETACEiE (lawson). [Combretum. 



Flowers not secund ; calyx-tube tubular-campanulate .' 9. C. aculeatum. 

 Flowers in spikes. Fruit winged. Herbaceous, erect . 10. C. sericeum. 

 Flowers in spikes or racemes. Fruit not winged, woody. 



Fruit with 5 sbarp angles 11. C. acutum. 



Fruit with 5 rounded angles . 12. C. pentagonum. 



II. Flowers mostly tetramerous. Cotyledons angled plicate 

 contortuplicate or deeply sulcate. 

 a Flowers panicled. Shrubs or trees. 

 Flowers collected at the ends of the peduncles, forming 

 umbellate or capitulale spikes. 

 Leaves elliptical ; wings of the fruit very thin and 



ample. Flowers red • . . . 13. C. racemosum. 



Leaves narrowly lanceolate, wings of the fruit small, 



hard, and scarcely membranous. Flowers dull yellow 14. C. capitvlifiorum. 

 Flowers fascicled or in small oblong spikes. 

 Limb of the calyx tubular-campanulate. 



Flowers in vast spreading panicles, petals red, 



broadly ovate, rounded at the apex 15. C. paniculatum. 



Flowers on long narrow virgate branches. Petals 



red, orbicular concave 16. C virgatum. 



Flowers cloth-like. Petals minute spathulate . . 17. G.fuscum. 

 Limb of the calyx cyathiform. 



Petals orbicular, concave, reflexed 18. C. cuspidatum. 



Petals broadly and obtusely ovate, wedge-shaped 



-below, not reflexed 19. C. mucronatum. 



p Flowers in axillary spikes or racemes, not panicled. 

 Shrubs or trees. 

 Leaves and branches lepidote. 



Leaves densely lepidote, at least when young. 

 Leaves not viscid, petioles short. 



Style without glands 20. C. elceagnoides. 



Style with stipitate glands 21. C. trvncatum. 



Leaves not viscid, petioles longer 22. C. c<Minum. 



Leaves viscid, at least when young . . . . 23. C. lepidotum. 

 Leaves sparingly lepidote, at least when young. 

 Fruit winged. Trees or erect shrubs. 



Fruit less than 1 in. long, 4-winged, wings 

 equal. 



Leaves 1 in. long, ovate 24. C. microphyllum. 



Leaves about 3 in. long by 2 in. broad, 

 ovate-elliptical, dotted below with minute 



pale-coloured scales 26. C. altum. 



Leaves about 5 in. long by 2 in. broad, ob- 

 long-elliptical, covered beneath with 



large ruby-coloured scales 27. C. laxiflorum. 



Fruit less than 1 in. long, 3- or 2-winged. 



Wings usually 3, unequal 30. G. anisopterum. 



Wings 2, equal 31. C. dipterum. 



Fruit 14 in. long or more. 



Leaves plane 28. C. rubiginosum. 



Leaves reflexed at the apex 29. C. apiculatum. 



Fruit winged. Scandent shrubs. 



Fruit sessile, 9 lines long 25. C angolense. 



Fruit pedicellate, 2 in. long, leaves obovate . 32. C. Kirkii. 

 Fruit pedicellate, 1^ in. long, leaves oblong- 

 elliptic 33. 'C. paradoxum. 



Fruit not winged 34. C. tetragonum. 



