144 CONTRIBUTIONS FROM TJIE NATIONAL TTERBARTUM. 



Barina aiul La Boca, aiul in llu* coast districts near Laguna; near Lares on declivities 

 at Barrio Tileta?; near Quebradillas; between Isabda and Quebradillas; near Toa 

 Baja.— Bahama (Hitchcock), Cnba (Griscbach), Jamaica, Haiti, Vieques (Eggers), 

 St, John, Grenada. Tropical continental America^ tropical western Africa. 



This shrub yields a gum, copaltie, that is used as a medicament in the West Indies. 



Local names, cojobillo^ morir vivir dmarron, zarza boba (Urban); acacia piicrtoriqucna 

 (Cook and Collins). 



2. Calliandra haematostoma (Bertero) Benth. 



(Urban, 265.) 



Shrub, armed; 2 tu 3 meters high; leaflets oblong, obtuse, 3 to 7 mm. long, glabrous, 

 Bubciliate; pednnch^ very short; stipules si)iny or with spines at their base; corolla 

 5 mm. long; stamens red; anthers white; legume 8 to 10 cm. long, linear, villous- 



pubescentj coriaceous. 



Near Guayanilla, on calcareous rocks of lhe coast at Penon, rare.— Bahama (Ben- 

 tliam), Cuba (Bentham), Jamaica, Haiti, St. Thomas in Flaghill, not often found, with 

 flowers in October (Eggers). 



5. ACACIA Willd. 



Saiisa Lruce; J, F. Gmelin, Syst. 2: 1038. 1791. 

 Acacia Wilud. Sp. PL 4: 1049. ISOG. 

 Fhyllodoce Link, llandb. 2:. 132. 1831. 



Flowers hermaphrodite or polygamous; calyx campanulate, toothed or lobed, the 

 sepals s(^ldom distinct or wanting; petals free or united, more or less connate, rarely 

 united with the stamens, rarely wanting; stamens numcTous, free or slightly and 

 irregularly consolidated at the Ijase; ovary sessile or stii)itate, 1 to many-seeded; 

 legume oval, linear or oblong, straight, curved or twisted, Hat, convex or terete, mem- 

 branous, coriaceous or woody, 2-valved or indehiscent, continuous or septate within, 

 rarely with pnlp, very seldom separating into segnu'nts; seeds usually oval, compressed, 



often with an aril. 



Trees, rarely herbs, unarmed or with prickles or thorns; leaves bipinnate, with 

 multi jugate leaflets, or reduced to a phyllodium; stem glands more or less conspicuous; 

 stipules small or wanting, membranous, rarely transfornuMl into a curved thorn; 

 flower-heads pedunculate, yellow, rarely wliite, I or 2-fasciculatein the axils of the 

 leaves, or racemose at the extremilies. 



KEY TO Till*: HPKCIEa. 



Armed . 



Ligneous plant, sometimes scandont; st<'m, branches, and pe- 

 duncle armed with small recurved prickles; pinnae (5 tol2- 

 jugate; leatlets 15 to lO-jugate; legume stij>itate, 10 to 20 cm. 

 long, 1 to 1.5 cm. wide, gUihrous or glauco-tomentose, thin. 1. A. rijjaria. 



Small tree or shrub; stipular spines slender, straight; pinnae 

 2 to 8; leaflets 10 to 25-j\igate; legume sessile, turgid, cylin- 

 drical or tsubfnsiform, straight or curved, glabrous, 5 to 7 cm. 

 long, 9 mm. wide. 



2. A, farnesiana. 



UnartntKl. 



Tre(^ flowers spicate; pinnae 4 to C-jugate; leaflets 10 to 16- 

 jugate, ovatc^-elliptie or broadly oblong, oblique, obtuse, at 



l(mgt]i coriaceous, 1 em. long, 5 mm. wide. 3. A, nudijlora. 



