PERKINS THE LEGUMINOSAE OF PORTO RICO. 209 



60. DIOCLEA B.B.E. 



Diodea II. B. K. Nov. Gen. & Sp. 6: 437. pi. 576. L8 

 Hymenospron Sprbng. Syst. 4: Cur. Post. 282. L£ 

 ( 'n pidotropi8 W ai.t. Linnaea 14: 296. 1840. 



Calyx oblique, obconical, with the two upper teeth connate, the Lateral ones small, 

 the Lowesi longer; standard orbicular, reflexed, the base with a pairof Lnflexed auricles; 

 wings obovate or oblong, free, as long as or rather shorter than the keel; keel incurved, 

 obtuse or rostrate; upper stamen free at the base, connate with the others al the middle; 

 anthers uniform or the 5 alternate ones very small and abortive; ovary subsessile, 2 to 

 many-ovulate; style incurved, dilated or thickened upwards; stigma oblique, trun- 

 cate; pod oblong, linear, semiorbicular, or somewhal reniform, compressed or some- 

 what turgid, coriaceous, both Butures uarrowly winged or the upper dilated and incras- 

 Bate, the lower no1 altered, 2-valved, septate between the seeds; seeds orbicular or 

 Bomewhal reniform, with a shorl or long, linear, more or less thickened or Bomewhal 

 fleshy hilum. — Twining shrubs or undershrubs; leaves pinnate; leaflets 3, Btipellate; 

 Btipules small, sometimes spurred, sometimes glandular; flowers blue; violel . or white, 

 in terminal usually elongated racemes, fascicled along the rachis; bracts caducous; 

 bracteoles membranous, persistent. 



A moderately small genus, almost entirely tropical American. 



1. Dioclea rerlexa Hook. f. 

 (Urban, 305.) 



Stem woody, climbing to a height of 6 meters, terete, clothed with long, spreading, 

 fine, deciduous yellowish gray hairs: stipules 1 to 1.8 cm. long, Bcariose, peltate; peti- 

 oles 5 to 7.5 cm. long; terminal leaflet obovate-oblong, 10 to 15 cm. long, the base 

 rounded, the apex cuspidate, the lateral leaflets similar. Bubcoriaceous, the upper sur- 

 face glabrous, lower thinly and deciduously silky; flowers in moderately dense racemes, 

 10 to 15 cm. long, on firm peduncles often as long: calyx dark brown, 9 mm. deep; corolla 

 dark red or bordering on purple; standard with a yellow spot at the base; pod oval or 

 oval-oblong, 9 to 13 cm. long, 5 to 6 cm. wide; seeds 1 to 3, oblique, ovateorbiculate, 

 2.5 to 3.0 cm. long, 2.2 to 2.6 cm. broad, of a bright or a dark wine color, the older ones 

 becoming brownish. 



In primeval forests near Yabucoa, on Mount Guayava, and near Maunabo, at La 

 Pandura; in Sierra de Luquillo between Mavi and Mount Jimenez. — Cuba. Jamaica. 

 Dominica. St. Vincent, Grenada, Tobago. A plant of tropical A.sia, Africa. America, 

 and New Guinea. 



Local names, mato or bejuco de mato; Cuba, ojo de 1>>" y </< costa. 



61. C AN A V ALIA DC. 



(una nil/ A dans. Fain. 2: 325, 531. I7t;:'>. 

 Canavalia DC. Mem. Legum. 375. 1825. 



('aly\ bilabiate, the upper lip lame, truncate or bifid, the lower one much Bmaller, 

 entire or tritid ; >tand a id reflexed, Large, Buborbicular or broadly obovate, with or with- 

 out auricles at the base; wings narrow, falcate <»r twisted, free; keel incurved, broader 

 than the wings, obtuse or rostrate: upper stamen free below, more or less connate al the 

 center; ovary sessile or very shortly stipitatc multiovulate; Btyle incurved; stigma 

 terminal, small, capitate; pod oblong, or broadly linear, compressed or Bubturgid, with 

 ;i prominent Longitudinal wing or rib on each side of the upper suture, 2-valved. Blightly 

 septate between the seeds: seeds large, rounded or oblong, compressed. Large herbs 

 with twining or trailing stems; leaves pinnate; Leaflets 3, Btipellate; stipules small, 



