126 LEGUMlNOSA;. (I'ULSK FAMILY.) 



2. C. Bonduc, Benth. & Hook. Leaflets 5-8 pairs, obliquely oval, mu- 

 cronate, the stipular thorns 2-3 ; racemes long, densely many-flowered ; calyx 

 lobes downy withiii, shorter than the long recurved deciduous bracts; legume 

 ovate, 1-seeded. South Florida. A tall shrub. Leaflets 2'-!' long. 

 Kacemes 1 long. Flowers yellow. 



47. PARKINSONIA, Plum. 



Sepals 5, equal, recurved. Petals 5, ovate, the upper one roundish, long- 

 clawed. Stamens 10. Style filiform. Legume linear-oblong, compressed- 

 moniliform, several-seeded. A spiny shrub. Leaves pinnate, with the 

 petiole broadly winged, the numerous leaflets small, often deciduous or abor- 

 tive. Flowers showy, yellow, in terminal racemes. 



1. P. aculeata, L. Key West, escaped from cultivation. 



SUBORDER III. MIftlOSEJE. MIMOSA FAMILY. 



48. MIMOSA, L. SENSITIVE PLANT. 



Flowers polygamous. Calyx minute, 4-5-toothed. Petals united into a 

 4-5-cleft tubular-campanulate corolla. Stamens 4 - 15, distinct, much ex- 

 serted. Legume compressed, mostly jointed, 1 -many-seeded ; the broad 

 valves separating at maturity from the persistent margins. Herbs, shrubs, 

 or trees. Leaves bipiunate, sensitive. Flowers white or rose-color, capitate 

 or spiked, on axillary peduncles. 



1. M. strigillosa, Torr. & Gray. Herbaceous and rough with scat- 

 tered appressed rigid hairs ; stem prostrate ; leaves long-petioled ; pinnae 5-6 

 pairs ; leaflets 10-14 pairs, oblong-linear; peduncles longer than the leaves; 

 heads of flowers elliptical; legume oval or oblong, 1 -3-jointecl, hispid. 

 Banks of rivers, Florida, and westward. July - August. Flowers rose- 

 color. 



M. PUDICA, L., the common SENSITIVE PLANT, is partially naturalized in 

 some localities. 



49. SCHRANKIA, Willd. SENSITIVE BRIER. 



Flowers polygamous. Calyx minute. Corolla funnel-shaped, 5-cleft. Sta- 

 mens 8- 10, distinct, exserted. Legume not jointed, prickly, 1-celled, many- 

 seeded ; the narrow valves separating at maturity from the broad margins. 

 Perennial prostrate herbs, with hipiuuate sensitive leaves, and purple flowers 

 in globose axillary peduncled heads. Stem, petioles, peduncles, and legumes 

 beset with short recurved prickles. 



* Lower surface of the leaflets reticulate with elevated veins. 



1. S. uncinata, Willd.? Stem stout, grooved; leaves approximate; 

 pinnfe 4-7 pairs; leaflets 25-30, oblong, acute, 3" -4" long; peduncles 

 mostly single, shorter than the leaves; legumes 2' -3' long, linear, short- 

 pointed, thickly armed with rigid prickles, about the length of the peduncle. 

 West Tennessee, and westward. July. 



