8 Britton: Studies of West Indian Plants 



and Isle of Pines; Hispaniola; Porto Rico; Jamaica; Mexico and 

 Central America. 



16. Pithecolobium Saman (Jacq.) Benth. Lond. Journ. Bot. 3: 



216. 1844 



Mimosa Saman Jacq. Fragm. 15. 1809. 

 Calliandra Saman Griseb. Fl. Br. W. I. 225. i860. 



Hillsides and pastures; all provinces and Isle of Pines: 

 widely distributed in the West Indies. Native of continental 

 tropical America. Not a true Pithecolobium. Perhaps referable 

 to Zygia [P. Br.] J. St. Hil. Exp. Fam. Nat. 2: 246. 1805. The 

 type of Zygia, which has long priority of publication over Pithe- 

 colobium, is Z. arborescens J. St. Hil., which is the same as Pithe- 

 colobium latifolium (L.) Benth. 



17. Pithecolobium Berterianum (Balbis) Benth. Lond. Journ. 



Bot. 3: 220. 1844 



Acacia Berteriana Balbis; DC. Prodr. 2: 470. 1825. 



Hillsides and woodlands in dry districts. Oriente, Camagiiey, 

 Santa Clara; Hispaniola; Jamaica. 



Not a true Pithecolobium. 



18. Pithecolobium tortum Mart. Herb. Fl. Bras. 114. 1837 



Pithecolobium vincentis Benth. Lond. Journ. Bot. 3: 222. 1844. 

 Acacia lentiscijolia A. Rich. Ess. Fl. Cub. 469. 1845. 



Sand dunes, sandy river-banks, coastal thickets and hillsides 

 near the coast, Santa Clara, Havana, Pinar del Rio, Isle of Pines; 

 St. Vincent; Martinique; Central and South America. 



Not a true Pithecolobium. 



19. Pithecolobium prehensile (C. Wright) Benth. Trans. Linn. 



Soc. 30: 593. 1875 

 Calliandra prehensilis C. Wright; Sauvalle, Anales Acad. Habana 

 5: 406. 1868. 



Rocky river-banks, coastal thickets and saline plains, Oriente; 

 Santa Clara. Endemic. 



Perhaps a congener of P. brevijolium Benth., the type of the 

 genus Havardia Small. 



