220 MISCELLANEOUS CIRCULAR 92, U. S. DEPT. OF AGRICULTURE 



LUCUMA Molina 



Lucuma nervosa A. de Candolle. 



Range. — Native of northern South America; southern Florida (Keys, in 

 hammocks. — J. K. Small). 



DIPHOLIS A. de Candolle 



Dipholis salicifolia (Linnseus) A. de Candolle. Bustic. 



Range. — Coast of southern Florida (Biscayne Bay and a number of southern 

 Keys); Bahamas, and West Indies. 



NAMES IN USE 



Bustic (Fla.). Cassada (Fla.). 



BUMSLIA Swartz 56 

 Bumelia tenax (Linnaeus) Willdenow. Tough Buckthorn. 



Range. — Coast region South Carolina to Florida (Cape Canaveral and Cedar $ 

 Keys); occurs also in southwestern Georgia. 



( 



NAMES IN USE 



Black Haw (Fla.). Tough Buckthorn (S. C). 1 



Ironwood (S. C, Fla.). 



Bumelia lanuginosa (Michaux) Persoon. Gum Elastic. 



Range. — From southern Georgia southward in western Florida to Cedar 

 Key; westward and northward in Alabama (Mobile Bay to Dallas County), 

 southern Mississippi, Louisiana, and eastern Texas (San Antonio River), extend- 

 ing northward through Arkansas and Oklahoma to southern Missouri, south- 

 eastern Kansas, and to southern Illinois. 



names in use 



Gum Elastic. Woolly Buckthorn (lit.). 



Shittimwood (Tex.). Slow-wood (La.). 



Black Haw (La.). False Buckthorn. 

 Chittimwood (lit.). 



Bumelia lanuginosa albicans Sargent. Gum Elastic. 



Range. — Eastern Texas (Lower Brazos River to San Antonio River) ; Mexico 

 (Nuevo Leon). 



NAME IN USE 



Gum Elastic 



Bumelia lanuginosa rigida Gray. Gum Elastic. 



Range. — Western Texas to Arizona (Chiricahua and Santa Catalina Moun- 

 tains) and south into Mexico (Nuevo Leon). 



« The writer has not seen specimens of Bumelia cassinifolia Small, which is recorded as a shrub or small 

 tree occurring only in "Sandy soil or woods of Louisiana." It appears to be closely related to Bumelia 

 lanuginosa (Michaux) Persoon, of which it is possibly a form. As yet, also, he has not seen specimens of 

 Bumelia lucida Small, which is said to occur as a small tree or shrub in Louisiana and eastern Texas. Fur> 

 ther investigation is required to determine the relationship of this plant to other recognized species. 



