li*- .-- 



J." J i; . 



PERKINS THE LEGUMIXOSAE OF POETO RICO. 



207 



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

 sclJuni without petals; bracts small, setaceous, bracteolea very smalL 



Professor Urban in Synibolae Antillanae^ has given a key to all the species of Galac- 

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

 varieties of two different species are found in Porto Rico. 



KKY TO THE SFECIEH. 



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

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



1. Galactia dubia DC. 



(Ur))an, 304.) 



A twining plant, wi)ody below, herbaceous above, c4othed densely or thinly with 

 short or very short n^flexed 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 ^.liortly apiculate, very obtuse^ or rolundate at the base, 2 to 4 cm. long, 1.5 

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

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

 appressedly pilose bmeatli; inflorescence 1 to 5 cm. hmg, 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 subglal)rous or very laxly a^d appressedly pilose, 7 to 8 mm. long; 

 corolla rose-colored (ex Duchassaing) or purph^ (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 nun. 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 up[)er part mort^ or less incurved, with very short appressed 

 hairs; seeds narrow, ovaLe-reniform, 3.5 to 5 mm. long, 2 to 3.5 mm. wide, lirovmish- 

 black, the hilum at or above the middle. 



la* Galactia dubia ehrenbergii Urb. 



(TM)an, 304.) 



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

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

 obovate, emarginate, the lateral ones shortly oval or sul)rotundate; calyx teeth often 

 small; standard 11 to 13 mm. long; seeds marmorate, tlu^ 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 Han Juan; near Calano; near Bayamon in the hedges; near Cabo 

 llojo. in littoral thickets at Joyuda; near llincon, in the mountains at Barrio Punta. 

 St, Thomas, 



lb. Galactia dubia guanicensis Urb. 



(TM)an, 304.) 



P'ntire stem woody; calyx and pod appressed-pubescent; flowers white- pod 3 to 

 4 cm. long. The rest as in ehrenbergii. 



Near Guanica in thickets on Mount El Maniel. 



'^2: 318. 1900 



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5734— VOL 10, i>t4— 07 



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