218 I,EGUMINOS^. 



with petaloid, long-exserted filaments i legume Img-stvfitate, deflexed, 5-8-Beeded.---fiMm3. 

 Fl. Mqum. t. 16.— Desmanthus lacustria and natans, W. Dv stolonifer, DC— Floating stem 

 often 8'" thick, spongy, with slender, emerging branchlets; flowers yellow; legume 8 -12 

 long, 4'" broad : stalk 4"' long.— Hab. Jamaica!, Pd., in ponds, S. Elizabeth ; [Texas; all 

 tropical countries, e.g. Guayaquil !, Para I, Nubia I, East Indies 1]. 



208. N., plena, 5eMtt. Slender, suflcrutescent, glabrescent; pinnse 3-5-jngal: petiole 

 bearing a gland ietween the lowest pair : leaflets 12-40-ingal, sensitive, linear-oblong ; 

 flower-heads, ovoid : inferior flowers sterile, with petaloid, long-exserted filaments ; legume 



' st^itale, at length deflexed, 5 -20-seeded.—Jffii/. Ic. i. 182./. 2.— Mimosa, L. • N.surinam- 

 ensis Stead. Desmanthus punctatus, JF. D. comosus, Bich. Cui. — Sterile filaments nume- 

 rous, 4'" long J legume 12"'-18"' long, 4'"-5"' broad ; stalk 2"'-3"' long.— Hab. Jamaica !, 

 WuUscM.i Antigua!, NickoU., WullsehL; [Mexiool to Braail! and Paraguay 1, Galapagos!]. 



209. W. pubescens, 5eM«. Slender, sufirutesoent, paberulous ; pinnse 2-4-jugal: 

 petiole eglandular : leaflets 12-30-jugal, linear, ciliate; flower-heads globose ; legume shortly 

 stipitate, 4-6-seeded. — Sterile flowers less numerous, or wanting'; legume 8"'-6"' long, 4'"- 

 3"' broad : stalk 1'" long. — Hab. Dominica I, Imr., in savannahs ; [Haiti I, Costarica!, Pern!]. 



81. DESMANTHUS, W. 



Cah/x 5-dentate. Petals subdistinct. Stamens 10 (-5) : anthers ovoid-oblong, eglandukr. 

 Legiime linear, flat-compressed, tumid at the seeds, membranaceous, bivalved. — Suffirutescent 

 herbs ;' leaves iipinnate^ sensitive : stipules setaceous ; flower-heads pedwicled. 



210. D. virgatus, W. Glabrescent ; stem virgate, angular ; pinnae 2-4(l-7)-jugal : 

 petiole hearing an ovate-oblong gland ietween the lowest pair : leaflets 10-25-jugal, linear 



-yor oblong-Unear ; legume straightish, 20-30(-10)-seeded : seeds oval. — Jacq. R. Find. t.80. 

 " ^-Mimosa, Z. — 4'-6' hjgh ; flowers white ; legume 8"-2" long, 2'" broad, 

 o. Leaflets linear, 2"'-3"' long. 

 p. strictus, Bert. Leaflets oblong-linear, 4'" long. 

 ' Hab. Jamaica !, all collectors, a common weed ; Nevis !, Antigua !, WiiMschl.; Dominica !, 

 Imr. : S. Vincent I, Cfuild. (iS) ; Barbadoes ; [Florida !, Lower Calrfomia !, Mexico ! to Buenos 

 Ayres I, East Indies !]. 



211. D. depressus, Kth. Glabrescent ; stem prostrate, striate ; pinnae 5-2(-l)-jugal : 

 petiole bearing an orbicular gland between the lowest pair, or eglandular : leaflets 10-20- 

 jugal, linear; legume straightish, 8-20-seeded: seeds oval. — Kth. Mimos. t. Zh. — D. prato- 



t Txaa, Macf. — More delicate than the preceding; stem branched, 8"-12" long; leaflets 2'" 

 'long; flowers white; legume l"-2" long, 2"' broad. — Hab. Jamaica !, Jlfa^., in pastures ; 

 Antigiia I, WviUschl. ; S. Lucia !, Anders. ; [Florida I, Texas ! to Peru !, Galapagos I]. 



82. MIMOSA, L. 



Calyx dentate or abortive. Corolla 4-5(-8-6)-cleft. Stamens as many or twice as many 

 as the petals : anthers globose, eglandular. Legume compressed, dehiscent : valves separating 

 from the entire border (the replum), jointed or continuous. — Leaves mostly hipinnate, sensi- 

 tive, mostly devoid ofpetiolar glands ; flower-heads ^^citecfej? in the West InjUa/a species; 

 exserted, stamens asually rosy or white. 



Sect. 1. ExiMiMOSA. — Stamens as many as the petals, usually 4. 



213. M. viva, £. Herbaceous, low, prostrate, m^Kcaai, unarmed, glabrescent; pJKK« 

 \-jugal: leaflets 4-5-jugal, oblong or obovate-ohlong, blunt ; flower-heads globose; legume 

 snbqaadrate, 1-seeded, hairy. — SI. t. 182./. 7- — Stem filiform, diffuse, rooting at each node; 

 peduncles and leaves l"-2" high ; leaflets 2'" long. — Hab. Jamaica I, Jl., in pastures, 

 S. Anns, S. Thomas in the East. 



213.' IH. casta, L. Stem sufEruticose, glabrous, ai'med the Vhole length and on the 

 petioles tdth recurved prichles ; pinna \-jugal, somewhat shorter than the petiole : lei^/lets 

 S-i-jugal, unequal-sided, oblong or half-elliptical, pointed, margined, usually strigose beneath , 

 and on the margin with scattered bristles:; peduncles nearly as long as the globose flower-' 

 heads, much exceeded by the petioles ; "legume- valves jointed, glabrous : border prickly." 



