PERKINS THE LEGUMINOSAE OF PORTO RICO. 201 



Near Bayamon in thickets; near Coamo, in the valley of El Fuerte River; near 

 Pepino; on declivities at Eneas; near Maricao in thickets on the river bank; near 

 Cabo Rojo in copses; near Mayaguez; near Afiasco, in thickets at Calvache; near 

 Rincon in coast districts; near Aguadilla, at Barrio Victoria. Cuba, Jamaica, Haiii, 

 Antigua (Grisebach), Guadeloupe, Martininque, St. Vincent, Trinidad. Widely 

 distributed in tropical America. 



Local name, flor de pito. 



3. Centrosema virginianum (L.) Benth. " 

 (Urban, 300.) 



Stems slender, firm, herbaceous, widely climbing; peduncle axillary, 1, sometimes 

 4-flowered; calyx 9 to 12 mm. deep; standard 2.5 cm. in diameter; flowers blue or 

 white becoming blue; pod 7.5 to 10 cm. long, 3.3 to 4.4 mm. broad, nearly straight. 



Near Bayamon in thickets and grassy places, near Yabucoa, on the declivities of 

 Mount Canto de Gallo; near^'ayey, at Morillos Brook; near Guanica, in meadows at 

 Montalba and between La Boca and Barinas; near Salinas de Cabo Rojo on the edge 

 of the woods; near Mayaguez, on the declivities of Mount Mesa; near Utuado, in 

 thickets at Cayuco. Bermuda (Hemsley), Bahama, Cuba, Jamaica, Haiti, St. Thomas, 

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

 (do.), St. Kitts, Antigua (Grisebach), Guadeloupe, Dominica (Grisebach), Martinique, 

 St. Vincent, Bequia (Kew Bull. No. 81, p. 246), Mustique, Canouan (do.), St. Lucia 

 (Grisebach), Barbados, Grenada, Tobago, Margarita. A common tropical American 

 species, extending north to Maryland. Also in western tropical Africa. 



Centrosema virginianum resembles C. pubescens closely, but has a much narrower pod. 



Local name, eonchita Virginia (Cook and Collins). 



3a. Centrosema virginianum ang-ustifolium (DC.) Griseb. 



(Urban, 301.) 



Leaflets linear, or the inferior oblong. 



Near Mayaguez, on Mount Mesa. Bahama, Cuba, Jamaica, Haiti, St. Martin (figure 

 in Stockholm Herbarium), Antigua (Grisebach), Martinique. 



54. TERAMNUS P. Br. 



Teramnus P. Br. Hist. Jam. 290. 1756. 



Calyx campanulate, the two upper teeth connate or separate, the others subequal ; 

 standard obovate, narrowed at the base, exappendiculate; wings narrow, adhering to 

 the keel; keel shorter than the wings, almost straight, obtuse; stamens all connate, the 

 5 alternate anthers small, abortive; ovary sessile, multiovulate; style short, thick, 

 beardless; stigma capitate; pod linear, 2-valved, septate between the seeds, rostrate. 

 Slender twining herbs; leaves pinnate; leaflets 3; stipules small; flowers minute, in 

 racemes or fascicles in the axils or in pairs or fascicles along the rachis; bracts small; 

 bracteoles linear or lanceolate, striate. 



1. Teramnus uncinatus (L.) Sw. 

 (Urban, 301.) 



Twining suffrutescent slender herbs; leaves pinnately 3-foliolate; petioles 4 to 6 cm. 

 long; leaflets oblong-lanceolate, 5.5to8cm. long, 2.25to3cm. wide, pubescent above, 

 sericeous beneath; flowers in long racemes, small, white or rose-colored, later pale 



a Cook and Collins, p. 94, as Bradburya virginiana. 



