Britton: Studies of West Indian plants 



21 



Peduncles 1-3 -flowered; leaves oblong, 5-20 mm. 

 long. 

 b. Twigs glabrous or puberulent. 



* Pedicels very slender or filiform. 



t Leaves small, 1-2.5 cm. long; peduncles 

 1- to few-flowered. 

 Calyx-lobes dilated above. 



Leaves ovate, rounded or subcordate at 



the base; calyx-lobes little dilated. 

 Leaves oblong, oval or obovate, nar- 

 rowed or obtuse at the base; 

 calyx-lobes much dilated. 

 Wholly glabrous; petioles 1-2 mm. 



long. 

 Petioles ciliate, 4-7 mm. long. 

 Calyx-lobes linear or subulate, not dilated. 

 Foliage puberulent. 

 Foliage glabrous, 

 tt Leaves up to 7 cm. long; inflorescence 

 several- to many-flowered. 

 ** Pedicels stout, short. 

 t Leaves petioled. 



Capsule subglobose or short-pyriform. 

 Corolla densely silky-pubescent. 

 Corolla glabrous or with a few scattered 

 hairs. 

 Calyx-teeth deltoid, minute. 

 Calyx-teeth ovate or oblong. 



Petioles slender; capsule sub- 

 globose. 

 Petioles stout; capsule subpyri- 

 form. 

 Capsule oblong, about twice as long as 

 thick; leaves elongated, petioled. 

 tt Leaves sessile, oblong-oblanceolate; capsule 

 short-pyriform. 

 Inflorescence axillary or lateral. 



a. Peduncles elongated, often as long as the leaves or 



longer. 

 Leaves sessile, cordate, 5-8 cm. long. 

 Leaves petioled, 3-5 cm. long. 

 Petioles about 2 mm. long. 

 Petioles 8-12 mm. long. 



Stipules triangular, obtuse; leaves obtuse 



or rounded at the base. 

 Stipules linear-subulate, broadened below; 

 leaves rounded at the base. 



b. Peduncles short, much shorter than the leaves. 



* Leaves membranous to chartaceous; inflor- 



escence mostly few- to several-flowered, 

 rarely i-flowered. 



2. R. micro phylla. 



3. R. Shaferi. 



9. R. brachycarpa. 



10. R. siellata. 



11. R. angustata. 



12. R. canellaefolia. 



13. R. calcicola. 



14. R. yamuriensis. 



15. R. correifolia. 



16. R. Lindeniana. 



17. R. nimanimae. 



18. R. Leoni. 



