PBBKINS — THE LEGU MINOS AE OF POKTO BICO. 217 



• 

 rather shorter than the standard; keel almost ae long ae the wingB, truncate, or beaked 

 at the tip. l»ut the point do! Bpiral : upper stamens free, the others united; o> ary ~< — i 1< • . 

 multiovulate; style aliform, dilated upwards, longitudinally bearded on the inner 

 side upwards; Btigma \ ery oblique; pod Linear, straight or Blightly recurved, subt 

 2-valved, filled within between the seeds; seeds reniform, quadrate. Serbs, either 

 prost rate and trailing or twining or more rarely somewhat erect; Leaves pinnate; Leaflets 

 3, stipellate; stipules usually persistent, rarely produced below their insertion; flowers 

 greenish yellow, more rarely purple, in axillary racemes; bracts and bracteoles usually 

 \ ery deciduous. 



KKV TO THE SPECIES. 



Calyx teeth Linear-lanceolate, equaling the tube; Btem and Leaf- 

 Lets clothed with adpressed, Btrong, silky hairs; terminal Leaflet 

 Lanceolate or ovate-lanceolate; peduncles 7.5 to :;<> cm. Loi 

 to 4-flowered; corolla reddish-purple, 2.5 cm. Long, conspicu- 

 ously veined; keel prolonged into an incurved beak; pod Linear, 

 7.5 to LO cm. Long, silky', recurved. i. V. vexillata. 



Calyx teeth deltoid, Bhorter than the tube. 



1' d 3.7 to 5 cm. ]"n<_ r . 6 nun. broad, slightly recurved, glab- 

 rescent or thinly silky, 8 to LO-seeded; seeds shiny, brown 

 with white hilum; terminal leaflet ovate, acute, 5 to 7.5 cm. 

 long, both Bides glabrous; stipules not spurred; flowers L2 

 to lmi in a conical raceme on a glabrous peduncle 5 to LO cm. 

 Long; corolla pale yellow, II to L3 mm. Long. 2. 1'. ripens. 



Pod pendulous, r> to :'><» cm. long. 9 nun. broad, Bubcom- 

 pressed, 1<) to L5-seeded, slightly torulose when fully 

 matured; seeds while, red, or black; terminal Leaflel 

 roundish or ovate, 7.5 to L5 cm. Long, both sides glabrous; 

 stipules comparatively large, distinctly spurred; flowers in 

 6 to L2-flowered racemes, on glabrous peduncles L5 to 30 

 cm. Long; corolla yellow or reddish, 2.5 cm. deep. .",. V. unguiculata. 



1. Vigna vexillata (L.) A. Rich. 



I I'll .an. 310.) 



Stem herbaceous, wide climbing; terminal Leaflet 5 to 7.5 cm. Long; petiolule I to 

 1.8 cm. long, flowers white inside, becoming blue; calyx 1 to L.5 cm. deep. 



Near Bayamon in meadows and on roadsides; between Aguas Buenas and Cagu 

 roadsides. Cuba, Haiti, St. Vincent, Grenada. This species is widely spread over 

 tropical Asia, Africa, and America. 



This plant on account of the obliquity of the flower and the length of the beak is 

 intermediate in some respects between Vigna and Phaseolus, and has been placed 

 alternately by botani&ta in either of these genera or in Dolichos, or it has been pro- 

 posed as a distincl genus. 



Local name, frijol cima 



'1. Vigna repens (L.) <> ivuntze. a 



Urban, 31 1. 



Stems very slender, wide-twining, glabrous; petiole 2.5 to "> cm. long; stipules 

 minute, lame.. late, not spurred; leaflet- :;. membranous, both sides glabrous, t! 

 one ovate, acute. ."> to 7.") cm. Long; petiolule 0.8 to 1 .<; em. Long; lateral ones unequal- 

 sided; flowers up to L2 or 20 in a conical raceme on a glabrous peduncle 5 to l<> cm. 



<*Cook and Collin-, p. 262, as Vigna luUola. 



