570 lxv. BEGONIACE2E (hooker). [Begonia. 



§ 2. Monoecious. Stem or very short. Leaves and peduncles radical. Sepals 2. 

 Petals 0. Styles 3-4, stigmas capitate, entire or shortly forked. Fruit slender, 3-4- 

 angled. 



Leaves peltate entire. Stigmas 3 5. B. scapigera. 



Leaves sub-peltate entire. Stigmas 4 6. B. scutifolia. 



Leaves sub-entire or 2-3-lobed. Stigmas 4 7. B.prismatocarpa. 



§ 3. Monoecious. Rootstoch creeping ; stem erect. Leaves alternate. Sepals 2. 

 Petals 0. Styles 3, stigmas forked* Fruit fusiform, narrowed at both ends, mem- 

 branous, not winged. 



Leaves broad, unequally 3-5-lobed 8. B. oxyloba. 



§4. Monoecious. Stem erect, very short. Sepals 2. Petals 0. Styles 3-6 ; stigmas 

 forked. Berry subglobose not winged, with branching placentas. 



Leaves sub-orbicular, 1-2 ft. diameter. Cymes effuse . . . 9. B. baccata. 

 Leaves sub-orbicular, long-petioled, 6-7 in. diameter. Cymes 



contracted 10. B. ampla. 



Leaves obliquely ovate, short-petioled. Cymes contracted . 11. B . poculifera. 



§ 5. Monoecious. Rootstock short, or slender and creeping. Leaves and pe- 

 duncles radical. Sepals 2. Petals 0. Styles 3-4, stigmas forked. Fruit 3-4r-winged, 

 coriaceous, indehiscent ; placentas branched. 



Leaves not peltate 12. B. peperomioides. 



Leaves peltate ; petiole near the margin 13. B. hirsutula. 



Leaves peltate ; petiole far from the margin. 



Leaves ovate, sub-entire, petiole stout hirsute 14. B. Scutulum. 



Leaves ovate-oblong, toothed, petioles hirsute 15. B. anisosepala. 



Leaves ovate, petioles slender glabrous 16. B. clypeifolia. 



§ 6. Monoecious. Stem erect. Leaves distichous. Sepals 2. Petals 0. Styles 3; 

 stigm as forked or capitate. Capsule membranous, 3-winged, dehiscing longitudinally. 



Leaves sessile, hirsute, much-toothed 17. B. elatostemmoides. 



Leaves petioled, glabrous, sub-entire 18. B. auriculata. 



Leaves sessile, glabrous, sub-entire 19. B. sessilifolia. 



Leaves pinnatisect 20. B. asplenifolia. 



§ 7. Monoecious. Stem erect. Leaves alternate. Sepals 2. Petals 2-3. Styles 3 / 

 stigmas forked. Fruit 3-celled, ^-winged, dehiscing longitudinally. 



Leaves obliquely falcate 21. B. Annobonensis. 



% 8. Monoecious. Annual. Sepals 2. Petals 2-3. Styles 3 ; stigmas forked. Cap- 

 sule membranous, 3-winged, dehiscing longitudinally. 



Leaves ovate-oblong, very obliquely cordate . . . . . . 22. B. rostrata. 



§ 9. Dioecious. Stem or rootstock slender, creeping. Leaves and peduncles radi- 

 cal. Sepals 2. Petals 2. 



Stem very long, slender. Leaves 2-3 in. ? 23. B . elceagnifolia. 



Stem very stout. Leaves 6-9 in 24. B. squamulosa. 



Of doubtful position. 



Stem climbing rooting slender. Leaves oblong 25. B. epiphytica. 



Stem erect, very stout! Leaves very thick elliptic-lanceolate 26. B. loranthoides. 



1. B. Mannii, Book. Bot. Mag. t. 5434. Monoecious. Stem 2-3 ft., 

 stout, woody, terete, branching. Branchlets, young" parts, petioles, 

 nerves beneath and inflorescence clothed sparsely or densely with rusty 



