123 
RUBIACEAE. 
Key to genera. 
i: d or tree 
sometimes: woody at base 
2. F lowa in stalked heads... ... 
Flowers not in stalked.heads .. 
3. Ovules many to the cell . 
Ovules solitary in each cell 
4. Fruit a berry or drupe ... 
Fruit a dry capsule or nut 
5. Flowers solitary, axillary 
Flowers in terminal pau or 
cymes .. A: 
6. Flowers in a ‘terminal panic cle s 
ioi in terminal corymbose 
= 
1. e “lobes of outer flowers 
ged i >: 
Cais ‘sae 
8. Flowers ur ada corolla 
obes 6 or more - 
Lobes of corolla and calyx 5 ro 
9. Flowers small, in dense axillary 
ers 
Flowers in panic cles or cymes 
10. Bark vhit corky, thick 
Bark thin, brownish SS 
11. Inflorescences all terminal | 
Inflorescences chiefly axillary 
12. Flowers in many-flowered i 
cymes, corolla tube over l-inch 
Flowers small or few ET Ex 
13. Stigmas recurve ee 
tigmas erect, connivent.. ose 
14. Thorny s i5 iad 
16. Stipules bris ose sis 
Stipules vithaut bist. = 
17. Flowers involucrate m pen 
Flowers without an involucre  ... 
. 8. wer axillary .. 
owers terminal . d 
19. Flower in close PIPE 
Flowe nasa or loose inflor- 
eee 
*. 
ooo 
. 20. ficti in dali stalked | cymes .. um 
Flowers in loose axillary cymes... 
b bo 
ECT go O Sew 
emi 
5. Thysanospermum (p. 
125). 
(e 
€. Wendlandia (p. 125). 
4. Dunnia (p. 125). 
12. Mussaenda (p. 129). 
8. 
16. Gardenia (p. 131). 
9. 
17. Diplospora (p. 132). 
10. 
13. im: (p. 130). 
14. Webera cd 130). 
15. Randia (p. 131). 
13. 
14. 
20. Ixora (p. 132). 
21. Pavetia (p. 132). 
amnacanthus 
(p. 
15. 
29. Paederia (p. 134). 
16. ; 
31. Serissa (p. 134). 
30. Leptodermis (p. 134). 
18. 
19. 
21. 
28. Lasianthus (p. 133). 
18. pee piod (p. 132). 
22. sa (p. 132). 
