TREES AND SHRUBS 



47 



Leaves bright green and glabrate, at 

 least above, denticulate; capsules 



7 mm long, on longer pedicels. 10. S. 'fluviatilis. 



Leaves canescent, entire or sometimes 

 denticulate; capsule smaller, 6 mm. 

 long, on a short pedicel. 11. S. exigua. 



Stamens 3 or more, hairy below; leaves 

 bright green above, lanceolate, finely 

 serrulate. 

 Petioles and leaf blades glandular; (leaves 

 paler beneath). 

 L'eaves long acuminate, only slightly 



paler beneath, thin. 13. S. fendleriana. 



Leaves short-acuminate, glaucous be- 

 neath, somewhat coriaceous. 14. S. lasiandra. 

 Petioles and the leaf blades not glandular. 

 Leaves paler beneath. 

 Leaves of the same color on both sur- 

 faces. 

 Leaves long-lanceolate; a compact 



spreading tree. 16. S. nigra. 



Leaves shorter; a straggling tree or 



bush. 15. S. wrightii. 



17. S. bonplandiana. 



