Catalpa. 



BIGXOXIACE.E. 65 



A small tree, rarely 8 metres in height, with a trunk 0.12 to 0.15 

 metre in diameter, or more often reduced to a low shrub. 



Wood light, rather soft, close-grained, compact, containing many small 

 scattered open ducts; medullary rays very numerous, thin, conspicuous; 

 color dark brown, the sap-wood light brown. 



204. Bourreria Havanensis, Miers. 

 Strong Back. 



Southern keys of semi-tropical Florida ; in the West Indies. 



A small tree. 10 or, exceptionally, 15 metres in height, with a trunk 

 0.20 to 0.25 metre in diameter; the large specimens generally hollow and 

 defective. A form (generally shrubby in Florida) with scabrous or his- 

 pidulous leaves is var. radu/a, Gray. 



Wood heavy, very hard, strong, very close-grained, compact, suscep- 

 tible of a beautiful polish ; medullary rays numerous, obscure ; color 

 brown streaked with orange, the sap-wood not distinguishable. 



205. Ehretia elliptica, DC. 

 Knack-away. Anaqua. 



Texas, — Corpus Christi to New Braunfels, and southward to the 

 valley of the lower Rio Grande. 



A tree 10 to 15 metres in height, with a trunk sometimes 0.50 metre 

 in diameter ; borders of streams-, in rich loam, and reaching its greatest 

 development between the Guadalupe and Nueces Rivers. 



Wood heavy, hard, not strong, very close-grained, compact, unwedge- 

 able, containing many small open ducts arranged in numerous concentric 

 rings within the layers of annual growth, these marked by several rows 

 of larger ducts ; medullary rays numerous, thin ; color light brown, the 

 sap-wood a little lighter. 



BIG-NONIACE^E. 



206. Catalpa bignonioides, Walt. 



Catalpa. Catawba. Bean Tree. Cigar Tree. Indian Bean. 



Southwestern Georgia, western Florida, and through central Alabama 

 and Mississippi. 



A low, much-branched tree, 12 to 15 metres in height, with a trunk 

 0.50 to 0.75 metre in diameter ; borders of streams and swamps, in rich 

 loam ; rare and local ; long cultivated for ornament, and now extensively 

 naturalized in the middle and southern Atlantic States. 



Wood light, soft, not strong, coarse-grained, compact, very durable in 

 contact with the soil ; layers of annual growth clearly marked by many 

 rows of large open ducts; medullary rays numerous, obscure; color 

 light brown, the thin sap-wood lighter, often nearly white ; used and 

 highly valued for fence-posts, rails, etc. 



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