PERKINS — THE LEGUMINOSAE OF PORTO BICO. 147 



ru i n ut « -. J as Long as the corolla, cupulate, slightl) divided, with 6 to s substipitate 

 glands on ili«' margin; corolla :'> nun. long; Legume Bubsessile, l to 5 nun. in diameter, 

 L.5 to I cm. Long, aculeate; seede mbrectangular, l 5 to 5 nun. long, 2.5 mm. wide, 

 black. 



Near Coamo, in the mountain forests of San [ldefonso and on shady slopes in El 

 Tendal Valley, [ndigenous 



Local name, cuemedllo. 



8. MIMOSA L. 



Mimosa L. Sp. PI. 1: 516. L753. 

 Lomoplis Rap. Sylva Tellur. lis. 1838. 



Rowers 1 or 5, rarely 3 to 6-merous, hermaphrodite or polygamous; calyx usually 

 small, sometimes wanting or paleaeform, often laciniate or fimbriate, rarely campan- 

 ulate and short-toothed; corolla campanulate or runnelform; stamens as many as 

 or) twice as many as the petals, free, exserted; ovary Bessile or Bubstipitate, 2 to 

 many-seeded; style filamentose; Legume oblong or Linear, compressed, rarely incras- 

 Bated, membranous or coriaceous, valves separating entire or in transverse segments 

 from the persistenl sutural replum; seels ovate or oblong, flat. Decumbent oi 

 herbs, scandenl undershrubs or trees, unarmed oi aculeate; leaves bipinnate, rarely 

 wanting or reduced to a Leaflike Btem; petiolar glands present; flowers .-mall, in glo- 

 bose heads or cylindrical spikes, axillary or racemose toward the extremities, soli- 

 tary or fascicled. 



KEY To THE SPECIES. 



Pinnae 2-jugate, rarely L-jugate; leaflets L5 to 25-jugate; petiole and 

 peduncle unarmed; Legume L.5 to 2 cm. long, 4 mm. wide, covered 

 with recurved bristles. 1. M. pudica. 



Pinnae 3 to 5-jugate; leaflets 3-jugate; petiole and peduncle armed; 

 legume 5 to 5.5 cm. long, 2 cm. wide, with large recurved prickles 

 on the margins. 2. M. ceratonia. 



1. Mimosa pudica L. 



Urban, 267. 



Undershrub or an herb, often scandent, armed with infrastipular and scattered 

 prickles: Leaflets oblong-linear, pointed, ciliate with adpressed bristles, glabrescent, 

 10 to 11 mm. long. 2 nun. wide, membranous; flower-heads oval. 



Near Bayamon; near Maricao, along roads; near Mayaguez, around the fortr 

 Cuba, Jamaica. Haiti. St. Thomas. St. Croix, St. Kitts (Grisebach), Antigua (do. . 

 Guadeloupe, Martinique, St. Lucia Grisebach), St. Vincent, Grenada, Tobago, 

 Trinidad. Continental tropical America, tropical Asia, probably introduced. 



A common weed in most parts of the region, nal uralized also in many parts of tropical 

 Africa. 



A medicament is made from the roots, leaves, and seeds of Mimosa /milieu thai is 

 used by the country people. 



Local names, morivivi, morir-vivir, sensitiva. Sensitive plant. 



2. Mimosa ceratonia L. 

 (Urban, 267 



Shrub 4 meters high, decumbent or ascending; branches and petioles armed with 

 small recurved prickles; leaflets obovate or orbiculate, 1 .5 to 2.5 cm. long, membran- 

 ous, 3-nerved; flower-heads globose, racemose toward the extremities; white. 



Near Bayamon; near Yalmcoa. in mountain wood.- at Guayabota; mar Maunaho. in 

 thickets at Punta de la Tuna; near Mayaguez. on the slopes of Mount Mesa ; near V 



