Jennings: Contribution to Botany of Isle of Pines. 123 



closely appressed hairs; pods smaller and strongly curved or coiled. 



282. Pithecolohium obovale. 

 Leaflets hardly exceeding i cm. in length. 



Armed with stipular thorns; leaflets widely and obtusely obovate. 



281. Pithecolohium tor turn. 

 Unarmed; leaflets ovate-oblong 279. Pithecolohium arbor eum. 



279. Pithecolohium arhoreum (Linnsus) Urban. Wild Tamarind. 



Mimosa arhorea Linn^us, Species Plantarum, I, Ed. I, 1753, p. 519. 

 Acacia arhorea Willdenow, Species Plantarum, IV, (2), 1806, p. 1064. 

 Pithecolohium filicifolium Grisebach, Flora of the British West Indian Islands, 



i860, p. 226-227. 

 Acacia Berteriana Bello, Anales de la Sociedad Espanola de Historia Natural, 



i88r, p. 264. 

 Pithecolohium arhoreum Urban, Symbolae Antillanse, II, 1900, pp. 259-260. 



Near Nueva Gerona, February 15 and April 17, 1904, A. H. Curtiss, 

 No. 348; in dry gravelly land east of Nueva Gerona, May 5, 1910, 

 0. E. Jennings, No. 11; on thin soil overlying coral-limestone, about 

 three miles north of Caleta Grande, May 22, 1910, 0. E. Jennings, 

 No. 5ig; along bank of arroyo, Sante Fe, May 24, 1910, 0. E. Jennings, 

 No. SSQ. General Distribution: Cuba, Isle of Pines, Jamaica, Porto 

 Rico, Haiti, Mexico, and Central America. 



Together with Thrinax Wendlandiana and Bucida Buceras, this 

 species forms, in large part, the sparse and low forest growth (chapar- 

 ral) near Hato, in the interior part of the peninsula which runs out from 

 the island to the southwest and is comprised in the term "south 

 coast." In this particular locality the original forest had probably 

 been removed and the chaparral can perhaps be regarded as an inter- 

 mediate stage in the plant successions which would eventually result 

 in the establishment of a denser forest of taller hardwood species. 



The specimens from the Isle of Pines, almost without exception, 

 have fewer pinnae (usually four pairs) and fewer leaflets to a pinna 

 (usually less than twenty pairs) than are stated for the species in the 

 older descriptions. 



280. Pithecolohium Saman (Jacquin) Bentham. Saman. 



Inga Saman Willdenow, Species Plantarum, IV (2), 1806, p. 1024. 

 Pithecolohium Saman Bentham, London Journal of Botany, III, 1844, p. 216. 

 Mimosa Saman Jacquin, Fragmenta Botanica, 1809, p. 15, PI. 9. 

 Calliandra Saman Grisebach, Flora of the British West Indian Islands, i860, p. 225. 



Near Nueva Gerona, April 19 and May 30, 1904, A. H, Curtiss, 

 No. 450. General Distribution: Native to America, from Nicaragua 



