120 AXCfJOSPERM.^. 



in weight. Van D. Land. A. scleroxylon, Ebony Acacia. 20° 

 high; fls. white, wood heavy. W. Iiid. A. procera, 60° high, fls. 

 yellow. E. Ind. A. (VachfeUia) Farnesidna, Cassik, Sweet Opopa- 

 NAX, 10°-15° high, thorny; fls. yellow, in small bds., fragrant. St. 

 Domingo. A. (Mimosa) nilStica, 20° high ; yields Crum Arabic. Af. 

 Pig. 130. 



Tribe 3. Sta. free. Calyx often pappose, or 0. 1. Mim6sa. Lvs. 

 2-pinnate, 8- or many-foliolate, often sensitive. Sta. double the num- 

 ber of petals. Fls. white or pink, in hds. or spikes, handsome. Pod 

 with persistent rim, from which the valves or the joints fall away. 

 230 spec, herbs, shrubs, climbers, often prickly. Nearly all tropical ; 

 both worlds, chiefly in Am. M. pudiea, Sensitive Plant ; 0, 

 branching, l°-2° high ; fls. pink, in hds. ; lvs. very sensitive. S. Am. ; 

 nat. in Pla. M. sirigillosa, %, prostrate, bristly ; fls. pink, hds. ob- 

 long. Gulf States. M. myriadenia, evergreen climbing shrub, 

 climbing the tallest trees. Trop. Am. 2. Schrinkia. Lvs. 2-pln- 

 nate ; fls. pink, in hds. or spikes ; pod linear, 4-sided. Q(., straggling 

 herbs, with recurved prickles and sensitive, many-foliolate. lvs. 10 

 spec, Gulf States to Brazil. S. uncindia, Possum Plant, very 

 prickly ; S. angustdia, sparingly so ; both with hds. of pink fls. ; from 

 Va. to Mo., S. and S. W. 3. Desmdnthus. J" § $. Sta. 5-10. 

 Petals 5, or corol. monopet., 5-cleft. Fls. white, in hds. or spikes. 

 Lvs. 2-pinnate, sensitive. Pod flat, slender, smooth, l'-2'' long. Small 

 evergreen shrubs, or 2]. herbs, warm regions, Am., Ind. D. depressus, 

 %, prostrate, sts. l°-2° long, peduncles 2-4-flowered. S. Fla. D. vir- 

 gdtus, Q|., erect, virgate, l°-2° high ; hds. few-flowered. D. brachylobus, 

 Q|., erect, striate, l°-3° high ; fls. in hds. 111. to Miss., La., and Tex. 



Tribe 4. Sta. free, usually twice as many as petals ; anth. usually 

 with a stalked gland. 1. Neptuhia. Fls. ^, in hds. ; near Desraan- 

 thus, but pod broad, few-seeded. Few spec, undershrubs or stiff', 

 slender Q|. herbs ; hot regions, both worlds. N. olerdcea, short stems, 

 often floating by means of hollow swellings, and thus branching and 

 covering watery tracts. Trop. Am., Asia, Af. N. lUtea, 2j., stems 

 ascending; hds. oval, manj'-flowered, nodding ; sterile fils. spatulate, 

 yellow ; fertile fils. white. Gulf coast, Key West to Tex. 2. Pro- 

 sopis. Sta. 10, anth. glandular. Fls. g , whitish green, or yellowish, 

 small, in small hds. or spikes. Pod indehisc, straight or twisted ; pulp 

 succulent, mealy or pithy. Lvs. 2-pinnate, pinnse 2-4-10, Ifts. oo. 

 Evergreen trees, shrubs, prickly or spiny. 18 spec, warm regions, 

 Am., Af., Asia. P. glandulbsa, Mezquit, Muskeet Tkee ; 20°-30° 

 high, gum-bearing; pod falcate, moniliform. Timber valuable. Tex., 

 Vt. and S. W. P. pubescens, Screw-Bean ; 6°-10° high ; pods 

 closely spiral, l'-2' long. New Mex., Arizona, S. Nevada. P. dulcis, 

 American Algab6ba ; 40° high ; pods sweet, succulent, fed to cattle. 

 Cent and S. Am. P. spicigera, 30° high ; pod sweet, spicy. E. Ind. 

 3. Adenanthera. Fls. resembling last, yellow, spicate. Lvs. 2-pin- 

 nate or decompound. Evergreen trees, shrubs. E. Ind., Malaysia, 

 Madagascar. A. pavonina, immense tree ; timber red, valuable. Sds. 

 bright scarlet, used as ornaments ; also as weights, each weighing just 

 4 grains. E. Ind. 4. Entada. Petals 5, sta. 10. Fls. in spikes or 

 racemes, white or yellow. Pod loment-like, woody, very long. Lvs. 

 2-pinnate. Evergreen high-climbing shrubs; 10 spec, trop., both 

 worlds. E. scdndens, Sea-Bean. Immense, high-climbing, near sea- 



