Britton: Studies of West Indian plants 



507 



CUBA 



G. Echinodendron. 



G. Coxiana. 

 G. cueroensis. 



42. THE GENUS GUETTARDA L. IX 



A. Leaves minute, nearly sessile, 6 mm. long or less. 1, 



B. Leaves larger, 1.5 cm. long or more. 



a. Leaves spinulose-tipped. 

 Leaves ovate to elliptic, strongly reticulate-veined 



beneath. 2. 



Leaves oblong, scarcely reticulate-veined beneath. 3, 



b. Leaves not spinulose-tipped. 



* Leaves small, 3.5 cm. long or less; flowers axillary, 



mostly solitary. 

 Leaves densely silvery-silky beneath. 4. G. rigida. 



Leaves glabrous or somewhat pubescent beneath. 

 Flowers sessile or nearly so; leaves ovate or 

 oblong. 

 Venation inconspicuous on upper leaf- 

 surfaces. 

 Corolla nearly 2 cm. long; calyx 



spathaceous. 

 Corolla I 1.5 cm. long. 



Calyx spathaceous; corolla- tube 



little longer than the limb. 

 Calyx truncate or oblique; corolla- 

 tube 34 times as long as the limb. 

 Venation prominent on upper leaf-surfaces. 

 Peduncles nearly as long as the fruits; leaves 

 obovate. 



* * Leaves larger, 3.5-15 cm. long. 



t Inflorescence capitate or clustered or flowers 

 solitary at the ends of twigs, or some flowers 

 also peduncled in the upper axils. 

 Inflorescence capitate-clustered. 



Leaves densely pubescent or puberulent 

 beneath. 

 Leaves densely puberulent beneath. 

 Leaves villous beneath, at least on the 

 veins. 

 Fruit 2-3 cm. in diameter. 

 Fruit 615 mm. in diameter. 



Fruit 10-15 mm. in diameter, 

 densely puberulent; leaves 

 densely villous beneath. 

 Fruit about 6 mm. in diameter, 

 villous; leaves villous on the 

 veins beneath. 

 Leaves pubescent only on the veins be- 

 neath. 14. 

 Flowers solitary or sometimes 2. 15. 

 ft Inflorescence axillary, peduncled. 

 X Inflorescence i-several-flowered. 



5. G. camagueyensis. 



6. G. clarensis. 



7. G. undulata. 



8. G. xanthocarpa. 



9. G. sciaphila. 



10. G. densiflora. 



11. G. macrocarpa. 



12. G. ferruginea. 



13. G. lanuginosa. 



G. crassipes. 

 G. zygophlebia. 



