PERKINS THE LEGUMINOSAE OF POETO RICO. 207 



along the common peduncle in pairs or in fascicles, the lower ones sometimes solitary, 

 seldom without petals; bracts small, setaceous, bracteoles very small. 



Professor Urban in Symbolae Antillanae a has given a key to all the Bpecies of Galac- 

 tia found in the West Indies and has settled many difficult points. Of this genus only 

 varieties of two different species are found in Porto Rico. 



KEY TO THE SPECIES. 



Leaflets 2 to 4 cm. long; petals 12 to 15 mm. long; pod 5 to 5.5 mm. wide. 1. G. dubia. 

 Leaflets 2.5 to 6 cm. long; pod 6 to 9 mm. wide. 2. G. striata. 



1. Galactia dubia DC. 



(Urban, 304.) 



A twining plant, woody below, herbaceous above, clothed densely or thinly with 

 short or very short reflexed and appressed hairs; stipules lanceolate or narrowly lanceo- 

 late, often subulate-acuminate, 2 to 3 mm. long; petiole 1 to 4 cm. long; leaflets 3, 

 the terminal one oval, elliptical, or obovate, rounded at the apex, more or less emar- 

 ginate and shortly apiculate, very obtuse or rotundate at the base, 2 to 4 cm. long, 1.5 

 to 2 cm. wide, the lateral ones one-third or one-half as long as the terminal one, oval 

 or shortly oval, all chartaceous or chartaceous-coriaceous, glabrous above, shortly and 

 appressedly pilose beneath; inflorescence 1 to 5 cm. long, few-flowered toward the 

 top or at the apex; peduncle 0.5 to 4 cm. long, 0.4 to 0.5 mm. thick; pedicel 3 to 4 

 mm. long; calyx subglabrous or very laxly and appressedly pilose, 7 to 8 mm. long; 

 corolla rose-colored (ex Duchassaing) or purple (ex Duss) ; standard obovate or orbicular- 

 obovate, 12 to 15 mm. long, 9 to 10 mm. wide, claw 1 to 1.5 mm. long; wings a little 

 shorter or narrower than the keel, 12 to 14 mm. long, 4 mm. wide; upper stamen free; 

 anthers oblong; ovary subsessile, 12 to 14-ovulate; pod 4 to 5 cm. long, 5 to 5.5 mm. 

 wide, suberect or the upper part more or less incurved, with very short appressed 

 hairs; seeds narrow, ovate-reniform, 3.5 to 5 mm. long, 2 to 3.5 mm. wide, brownish- 

 black, the hilum at or above the middle. 



la. Galactia dubia ehrenbergii Urb. 

 (Urban, 304.) 



Stem, calyx, and pod shortly patent-pubescent; leaflets on the upper surface very 

 shortly pilose, on the lower densely pubescent; terminal leaflets obovate or orbicular- 

 obovate, emarginate, the lateral ones shortly oval or subrotundate; calyx teeth often 

 small; standard 11 to 13 mm. long; seeds marmorate, the hilum below the apex; flowers 

 (Sintenis) pale rose-colored or (Stahl) the standard yellow, the wings and keel a 

 bright violet or whitish. 



Near Cabeza de San Juan; near Catano; near Bayamon in the hedges; near Cabo 

 Bojo, in littoral thickets at Joyuda; near Rincon, in the mountains at Barrio Punta. 

 St. Thomas. 



lb. Galactia dubia gnanicensis Urb. 



(Urban, 304.) 



Entire stem woody; calyx and pod appressed-pubescent; flowers white pod 3 to 

 4 cm. long. The rest as in vhrenbergii. 



Near Guanica in thickets on Mount El Maniel. 



"2: 318. 1900. 



L'5734 vol, 10, i-t4 07 6 



