PERKINS THE LEGUMINOSAE OF PORTO RICO. 171 



segments lanceolate; corolla about 1 cm. long; legume 2.5 to 3.5 cm. long, 8 mm. wide, 

 glabrous. 



Near Bayamon along roads; near Coamo; near Mayaguez, on hills at Boquillas and 

 in coast districts at Algarrobo. Cuba, Haiti, St. Kitts, Guadeloupe, Dominica, Mar- 

 tinique, St. Vincent, Trinidad (Grisebach), Mexico. Frequent in the warmer regions 

 of South America. 



Local name, cascabelillo. 



2. Crotalaria sagittalis L. 



(Urban-, 280.) 



Annual, hairy; stem 10 to 20 (sometimes 30) cm. high, erect, branching; leaves 

 simple, oval or oblong-lanceolate, 2.5 to 5 cm. long, pubescent with long, soft hairs, 

 scarcely petioled; stipules occasionally wholly wanting, usually present, united and 

 decurrent on the stem, obversely sagittate, nearly all, but especially those of the upper 

 leaves, large, the free portion triangular-lanceolate; peduncles rather short, about 

 3-flowered, opposite the leaves; corolla rather shorter than the calyx; legume scarcely 

 stipitate, coriaceous, several -seeded ; seeds small, shining, black when ripe, rattling 

 in the inflated legume. 



Near Bayamon, in fields on the coast at Catano; near Yauco on Mount Duey. 

 Jamaica, Haiti, North America, Mexico, and as far as Peru. 



3. Crotalaria retusa L. 



(Urban, 281.) 



Annual, erect, 1 meter high; leaflets 5.5 to 7.5 cm. long, 2 to 3 cm. wide, very short- 

 petioled, glabrous above, sericeo-canescent beneath; raceme 15 to 30 cm. long; flowers 

 yellow, the standard variegated; calyx bilabiate, exceeded by the corolla; corolla 

 1.5 to 2.25 cm. long; legume 3 cm. long, 1.25 cm. wide, glabrous. 



Near Bayamon along roads; near Catano; near Cabeza de San Juan; near Maunabo, 

 at Punta de la Tuna; near Patillas, in coast districts at Guardaraya; near Cabo Rojo 

 in pastures; near Mayaguez, on Mount Mesa. Bahama, Cuba, Jamaica, Haiti, St. 

 Thomas, St. Croix, St. John (Eggers), St. Martin (Stockholm Herbarium), St. Bar- 

 tholomew (do.), St. Kitts, Guadeloupe, Dominica, Martinique, St. Vincent, Mustique, 

 Bequia (Kew Bull. no. 81, p. 244), Union (do.), Barbados, Grenada, Tobago, Trinidad. 

 Found in the warm regions of the globe; frequent in East India and in the Antilles. 



The leaves and roots of Crotalaria retusa are used in popular medicine, and in Farther 

 India it is sometimes cultivated for its fiber. 



Local names, matraca, sonajuelas; according to Stahl (cited by Cook and Collins, 

 p. 129), cacsabelillo grande. 



4. Crotalaria incana L. 



(Urban, 281.) 



Annual or biennial, herbaceous, 0.66 to 1.33 meters high; branches clothed with 

 fine spreading- brown silky hairs; leaflets obovate or orbicular, 2.5 to 4 cm. long, 2 to 

 2.5 cm. wide, glabrescent above, slightly silky beneath; petioles 4.5 to 5.5 cm. long; 

 flowers greenish yellow; calyx deeply 5-lobed, segments lanceolate, exceeded by 

 the corolla; corolla 1 to 1.25 cm. long; legume pendulous, 2.5 to 3.5 cm. long, about 

 1 cm. wide. 



Near Bayamon along roads; near Cabeza de San Juan on declivities; near Fajardo on 

 the river bank; near Juncos along roads; near Guayama; near Cay ey along roads; near 

 Coamo on roads; near Adjuntas at Coral Viejo, near Guanica in thickets at the lagoon; 

 near Cabo Rojo, in pastures at Miradero; near Mayaguez at the fortress and on the 

 declivities of Mount Mesa; between Mayaguez and Afiasco along roads; near Rincon 

 in thickets on the seashore. South Florida (Chapman), Cuba, Jamaica, Cayman 



