Coccoloba. NYCTAGINACE.3:.— POLYGOTTACEjE. 6i 



A small tree, rarely exceeding in Florida G metres in height, with a 

 trunk 0.10 to 0.15 metre in diameter, or north of Bay Biscayne reduced 

 to a low much-branched shrub ; common and reaching, within the United 

 States, its greatest development on the shores of Bay Biscayne, Lost 

 Man's River, etc. 



Wood heavy, exceedingly hard, strong, close-grained, compact, sus- 

 ceptible of a fine polish, containing numerous small regularly distributed 

 open ducts ; color clear bright red, the sap-wood lighter. 



211. Avicennia nitida, Jacq. 



Black Mangrove. Black Tree. Black-wood. 



Florida coast, — Saint Augustine to the southern keys, and Cedar 

 Keys to Cape Sable ; deltas of the Mississippi River ; through the West 

 Indies to Brazil. 



A tree 6 to 9 metres in height, with a trunk 0.25 to 0.30 metre in 

 diameter, or, exceptionally, 20 to 23 metres in height, with a trunk 0.(50 

 metre in diameter'; north of Mosquito Inlet reduced to a low shrub; 

 common along saline shores and swamps, throwing up many leafless 

 corky stems, and forming, with the red mangrove (Rhizophora), impene- 

 trable thickets, or, more rarely, scattered anil round-headed ; reaching its 

 greatest development, in the United States, on the west coast of Florida, 

 north of Cape Sable. 



Wood very heavy, hard, rather coarse-grained, compact ; the eccentric 

 layers of annual growth marked by several rows of large open ducts ; 

 medullary rays numerous, thin ; color dark brown or nearly black, the sap- 

 wood brown. 



NYCTAG-INACE.E. 



212. Pisonia obtusata, Sw. 



Pigeon-wood. Beef-iuood. Cork-wood. Pork-wood. 



Semi-tropical Florida, — Cape Canaveral to the southern keys ; in the 

 West Indies. 



A tree 9 to 15 metres in height, with a trunk 0.25 to 0.45 metre in 

 diameter ; saline shores and beaches. 



Wood heavy, rather soft, weak, coarse-grained, compact, containing 

 numerous large open ducts ; layers of annual growth and medullary rays 

 hardly distinguishable ; color yellow tinged with brown, the sap-wood 

 darker. 



POLYG-ONACE^E. 



213. Coccoloba Floridana, Meisn. 



Pigeon Plum. 



Semi-tropical Florida, — Cape Canaveral to the southern keys, and 

 from Cape Romano to Cape Sable. 



