200 Annals of the Carnegie Museum. 



Along margin of river south of Nueva Gerona, in brackish water, 

 May 12, 1910, 0. E. Jennings, No. 6q2. General Distribution: Along 

 sea-coasts from the Bermudas and southern Florida south through 

 the West Indies and continetital tropical America; also tropics of 

 Africa. 



In the Isle of Pines the mangrove forms a continuous border around 

 the coast, excepting where the coast is rocky, and it also fringes the 

 rivers for several miles back from the sea, as far as the limit of salt 

 water. 



Family COMBRETACEiE. 



Key to the Species Enumerated. 



Flowers in peduncled spikes. 

 Corolla none. 



Leaves glabrous or nearly so; calyx persistent; branchlets thorny. 



Leaves about 2 cm. long and 5 mm. wide 501. Bucida spinosa. 



Leaves 2-4 cm. long and 5-20 mm. wide 500. Bucida Buceras. 



Leaves on the midrib beneath and on the margin rusty hirsute. 



498. Buchenavia capitata. 

 Corolla present; leaves opposite, oblong to oval or obovate, rounded or retuse. 



502. Laguncularia racemosa. 



Flowers in dense, round, peduncled heads; leaves alternate, elliptic to oval, acute 



or acuminate 499. Conocarpus erecta. 



498. Buchenavia capitata (Vahl) Eichler. 



Bucida capitata Vahl, Eclogae Americanae, I, 1796, p. 50, PI. VIIL 

 Buchenavia capitata Eichler, Flora, 1866, p. 165. 



Pseudolmedia bucidcefolia Bello, Anales de la Sociedad Espanola de Historia 

 Natuial, n, 1883, p. 109, no. 701. 



Near Nueva Gerona, February 28 and March 29, 1904, A. H. 

 Curtiss, No. jy6. General Distribution: From Cuba south through 

 the West Indies and tropical South America. 



499. Conocarpus erecta Linnaeus. Buttonwood. 



Conocarpus erecta Linn.eus, Species Plantarum, L Ed. I, 1753, p. 176. 



Pedernales Point, southwestern corner of the island, February 16, 

 1899, C. F. Millspaugh, No. 1428. General Distribution: From the 

 Bermudas and southern Florida south through the West Indies and 

 tropical America, along muddy or sandy shores. 



500. Bucida Buceras Linnaeus. Black Olive. 

 Bucida Buceras LinN/EUS, Systema Naturae, l\, Ed. X, 1759, p. 1025. 



Near Nueva Gerona, May 3, 1904, A. H. Curtiss, No. 47g; in swamp 



