BLAKE—REVISION OF RINOREA, 495 
Connective scales oval or oblong, broadly rounded. 
Ovary glabrous____--------------------------------- 7. BR. crenata. 
Ovary densely pubescent__------------------- 15. R. hymenosepala. 
Flowers strictly racemose. 
Leaves cordate at base_-__------------------------ 8. R. maximiliani, 
Leaves narrowed at base_____.-------------------- 9. R. physiphora. 
Leaves opposite, very rarely ternate. 
Flowers racemose-paniculate, forming a narrow thyrse. 
Ovary glabrous. 
Petals 2.6 mm. long; leaves short-pointed, green beneath. 
10. BR. racemosa. 
Petals 3.2 to 3.5 mm. long; leaves long-attenuate, glaucescent beneath. 
11. R. sprucei, 
Ovary pubescent. . 
Axis of inflorescence glabrous____--------------- 12. R. lindeniana, 
Axis of inflorescence pubescent or puberulous. 
Petals 2 to 3 mm. long. 
Filaments bearing a gland at apex; petals glabrous or only ob- 
securely ciliolate, 2.5 to 3 mm. long------------- 13. R. riana. 
Filaments bearing a gland at base; petals ciliolate, 2 mm. long. 
14. R. micrantha. 
Petals 4 to 5.2 mm. long. 
Sepals 2 to 3 mm. long; leaves pubescent at least on the veins 
beneath; placentae 1-ovulate. 
Connective scales erose; anthers with comparatively large termi- 
nal appendages; filaments bearing a gland. 
15. R. hymenosepala, 
Connective scales entire; anthers unappendaged; -filaments 
eglandular_____------------------------ 16, R. ulmifolia. 
Sepals 1 to 1.2 mm. long; leaves glabrous beneath; placentae 
2-ovulate_______---------.--------------- 17. R. hummelii. 
Flowers strictly racemose. 
Petals only once and a half as long as sepals, or less. 
Leaves puberulous and strigose on veins beneath; sepals hispid; fila- 
ments not bearing a gland; anthers 1-mucronate or unappendaged. 
18. R. sylvatica. 
Leaves glabrous; sepals puberulous; filaments bearing a gland at apex; 
anthers multisetose _.___---.--------------------- 19. R. martini. _ 
Petals more than once and a half as long as sepals, usually twice as 
long or more. 
Ovary glabrous or rarely with a few hairs__--------- 20. R. flavescens. 
Ovary densely pubescent. 
Anthers bearing at apex 1 or 2 cusps or mucros, or 1 to several setae. 
Petals pubescent dorsally____---~--------------- 21. R. passoura. 
Petals glabrous or merely ciliolate, rarely with a few hairs on back. 
Connective seales strongly erose or crisped below; placentae 
1-ovulate_____----------------------- 22. R. guatemalensis. 
Connective scales entire or merely obscurely erose; placentae 
usually 2 to 4-ovulate (1-ovulate in R. brevipes and R. deflera). 
Leaves strongly coriaceous, strictly entire, with strongly 
thickened margin __-_--__------------- 23. R, marginata. 
