Jennings: Contribution to Botany of Isle of Pines. 183 



The plate accompanying Richard's description, and the description 

 itself, each indicate non-!obed leaves for this species, but all the 

 Cuban specimens the writer has seen, as well as the specimens 

 from the Isle of Pines, have the leaves more or less acuminately lobed. 



451. Hibiscus spiralis Cavanilles. 



Hibiscus spiralis Cavanilles, Icones et Desciiptiones Plantarum, etc., II, 1786, 

 p. 47, t. 162. 



Rocky slope of ridge at Bibijagua, May 7, 1910, 0. E. Jennings, 

 No. 126. General Distribution: Mexico and the Isle of Pines. 



452. Hibiscus Sabdariffa Linnaeus. Roselle. Jamaica Sorrel. 

 Hibiscus Sabdariffa Linn^us, Species Plantarum, 1753, p. 695. 



Specimen collected by Dr. Jared F. Shafer, February-March, 1910, 

 probably from a cultivated plant. This species is a native of the 

 Old World tropics and is rather widely cultivated for the acid, fleshy 

 calyx, which, when cooked, much resembles cranberry sauce. The 

 stems are also used in some countries as a source of fiber, which is 

 strong, silky, and quite highly esteemed especially in the Asiatic 

 tropics, where it is known as the "Roselle Hemp." 



453. Gossypium barbadense Linnaeus. Sea-island Cotton. 



Gossypium barbadense LiNNiEus, Species Plantarum, 1753, p. 693. 

 Hibiscus barbadensis var. latif alius O. Kuntze, Revisio Generum Plantarum, I, 

 1891, p. 68. 



Collected in the Isle of Pines February-March, 1910, by Dr. Jared 

 F. Shafer, probably from a cultivated plant. General Distribution: 

 Cultivated and spontaneous in sandy soil, mostly near the coast, 

 from the Carolinas to Florida, the Bahamas, the West Indies, and 

 the tropics generally. 



Family BOMBACACE^. 

 454. Bombax emarginatum (A. Richard) Decaisne. Ceiba Tree. 



Pachira etnarginata A. Richard, in Sagra, Histoiia Fisica, Politica y Natural de 



ia Isla de Cuba, X. 1845, pp. 70-71 and XII, PI. 20. 

 Bombax emarginatum Decaisne, Flora des Serres, Seiies II, XIII, 1880, p. 40. 



In the Journal of the New York Botanical Garden, XVIII, 1916, 

 p. 67, Dr. N. L. Britton notes that the steep slopes of the rough hills 

 and mountains in the northeastern part of the island are "dotted by 

 the large and peculiar green-barked ceibon tree (Bombax emarginata), 



