i^.f 



^' ■' 



PERKINS — THE LEGUMINOSAE OF PORTO RICO. 1C3 



20. KRAMERIA Loefl. 



Kraincria Loefl. Itcrllisp. 195. 1758. 



Calyx with 4 or 5 pul^equal, imbricate^ more or Ir^s coroUaceous Pigments, the outer 

 one soinowhat larg(T than the othcTs; petals 4 or 5, narntwer than the calyx segments, 

 the upper ones subequalj long-clawecl, sometimes free, sometimes connate, the middk^ 

 one often folded, the 2 lower onc^s reduced to thick, short, fleshy scales; stamc^ns 3 or 4, 

 hypogynous, the anthers basifixed, opening by an oblique introrse pore; ovary sessile 

 with 2 collateral, hanging, anatrnpous seeds; style cylindrical, pointed; legume globose 

 or som(nvhat compressed, aculeate ur weakly spinous, indehiscent; seeds exall)umi- 

 nous. — Shrubs or herbs, often decumbent and silky-tomentose; leaves simple or rarely 

 digitate (leaflets 3); flowers purple, axillary, sometimes in leafy racemes; bracts 2, 

 at or above the middle of the peduncle; lilaments free, or connate half their length. 



1. Krameria ixina L. 



(Urban, 277.) 



r 



Plant 0.5 to 1 meter high; stem erect, branched, woody below, villous-pubescent; 

 leaves ellipticaldanceolate, mucronate; flowers racemose, purple or dark purple; 

 p(^dicels short, l>ibracteolate about the middle; sepals 4, pubescent exterit^lly; posterior 

 petals connected at the base; stamens 4; spines of pericarp glochidiate. 



Between Ponce and Guayanilla, on calcareous rocks of the coast; near Ponce, on the 

 harbor and at Penon; near Guanica, in littoral thickets at Salinas and on the declivities 

 at Punta de los P(*scadores; near Cabo Rojo, in forests near the seashore.- — Haiti, St. 

 Thomas, Antigua (Grisebach), Curacao (Vahl), Colombia. 



21. PARKINSONIA L. 



Parhnsonia L. Pp. PI. 1: 375. 1753. 



Calyx with a short receptacle and 5 subequalj nu*mbranous, slightly imbricate seg- 

 ments; petals 5. nearly (npTal, the ]K)sterior one the widest; stamens 10, their filaments 

 villous at the V)ase; ovary free, in tlu^ fundus of tln^ receptacle, subhtipitate, multiovu- 

 late; style fdiform; stigma small, terminal; legume narrowly linc^ar, narrowed to each 

 end, usually constricted between the subdistant seeds, scarcely or not at all dehiscent; 

 valves thinly coriaceous, longitudinally reticulate-striate; seeds ol)longj longitudinally 

 disposed, albuminous.— Trees or shrubs w^ith thorny stipules; leaves bipinnate; com- 

 mon petiole very short, spine-pointc^d; pinnae 2 to 4, with the rachis much elongated, 

 flatt(^ned, bearing numerous, opposite or scattered, very small leaflets, Avhich are occa- 

 sionally abortive; flowers yellow, in lax axillary racemes; bracts small, caductms; 

 bractetiles wanting. 



1. Parkinsonia aculeata L. 



(iTban, 277.) 



Small trees or shrubs; common petiole only 1 to 2 mm. long; pinnae 1 or 2-jugate; 

 secondary petioles winged, linc^ur, acuminate, 16 to 36 cm. long; leaflets minute, 

 oblong or obovate, -1 to 5 mm. long, 1 to 2 mm. wide, blunt, the uppermost (or many) 

 abortive; flowers yellow, in lax axillary racemes, 9 to 10 cm. long; calyx 7 mm. high; 

 corolla suborbicular, 1 cm. in diameter; legume 8 to 9 cm. long, 1 cm. wide, constricted 

 between the seeds. 



Near Fajardo nn the seashore between Guayama and Guamani along roads; near 

 Mayaguez; near Quebradillas. — Florida Keys, Cuba, Jamaica, Haiti, St. Thomas, St* 

 Croix, St. John (Eggers), St. Martin, St. Bartholomew (Stockholm Herbarium), 



