[From the Bulletin of the Torrey Botanical Club, 42 : 365-392. 27 Jy 1915.] 



Studies of West Indian plants VI 



Nathaniel Lord Britton 



35. THE GENUS COCCOLOBIS IN CUBA 



6. 



7- 



C. 

 C. 



A. Leaves 2-13 mm. long; inflorescence one- to three-flowered [Rhigia]. 

 Leaves spinulose-mucronate. 

 Leaves emarginate at both ends. 



B. Leaves 2 cm. long or longer; inflorescence many-flowered. 



1. Leaves spinulosemucronate. 



Racemes loosely flowered; leaves acute. 

 Racemes densely flowered; leaves acuminate. 



2. Leaves not spinulose-mucronate. 



Leaves very large, suborbicular, deeply cordate; fruit 



large; halophytic tree or shrub. 

 Leaves smaller, rarely cordate; fruit small; mesophytes. 

 Pedicels filiform, in fruit 8-12 mm. long, as long as 

 the fruit or longer. 

 Leaves flat, their margins not revolute. 

 Leaves bullate, their margins strongly revolute. 

 Pedicels shorter than the fruit. 

 Rachis of the raceme glabrous. 



Leaves almost veinless above, few-veined be- 

 neath, rounded, or emarginate. 

 Leaves reticulate-veined on both sides. 



Fruiting pedicels 2.5-4 mm. long; fruit 



8-12 mm. long. 

 Fruiting pedicels 1.5 mm. long or less; 

 fruit smaller. 

 Leaves obtuse or emarginate at apex, 



obtuse at base. 

 Leaves acuminate or acute. 



Leaves acuminate at both ends. 

 Leaves acute at apex, oblique at 

 base. 



365 



5. C. Uvifera. 



coriacea. 

 Cowellii. 



8. C. nipensis. 



9. C. laurifolia. 



10. C. 



11. C. 



12. C. 



niusa. 



cubensis. 



colomensis. 



