rso 



TRIBES OF NORTH AMERICA 



A tree, 50-60 high, with a trunk 3-4 in diameter, divided by numerous irregular deep 

 furrows multiplying and spreading in all directions, and branchlets slightly angled when 

 they first appear, puberulent and reddish brown, soon becoming glabrate, and in their 



Fig. 656 



second season nearly terete, gray or light brown, and marked by numerous small light- 

 colored lenticels. Bark of the trunk thin, orange-brown, exfoliating in large papery scales. 

 Wood heavy, hard, very strong, dark brown tinged with yellow, with thin light yellow sap- 

 wood of 8-10 layers of annual growth. 



Distribution. Florida, on Umbrella Key, the north end of Key Largo, and on some of the 

 small keys south of Elliott's Key; of its largest size and forming a forest of considerable 

 extent on Umbrella Key; on the Bahama Islands and on many of the Antilles. 



2. Colubrina cubensis Brong. 



Leaves oblong to elliptic, gradually narrowed and rounded or acute and apiculate at 

 apex, rounded or cuneate at the often unsymmetric base, slightly crenulate-serrate with 



Fig. 657 



