282 NATURAL HISTORY OF PLANTS. 



exarillate. — Annual or often perennial herbs, sprinkled with glan- 

 dular dots ; leaves imparipinnate exstipellate ; stipules setaceous ; 

 flowers in heads or oftener in spikes ; inflorescences terminal or leaf- 

 opposed ; peduncles usually long ; bracts narrow setaceous or broad 

 membranous, imbricated; bractlets (Hot regions of North America 1 ). 



101. Eysenhardtia H. B. K. 2 — Flowers almost those of Dalea; 

 calyx nearly equally 5-toothed. Petals nearly equal in length, long- 

 unguiculate ; standard subobovate ; wings and petals of keel narrower, 

 nearly similar to each other. Stamens 10, 2-adelphous (9-1); anthers 

 uniform. Germ en subsessile (of Dalea) ; style hooked at apex with 

 introrse oblique stigmatiferous summit, or minutely capitate and 

 geniculate below apex, the joint furnished with an anterior gland at 

 base. Legume small oblong-falcate, not included, rather compressed, 

 indehiscent (?). Seeds 1, 2, oblong- reniform. — Shrubs, sometimes 

 spinous, sprinkled with glandular dots ; leaves imparipinnate ; leaf- 

 lets oo, minutely stipellate ; stipules small subulate ; flowers 3 race- 

 mose ; racemes terminal, simple or branched bearing leaves at base ; 

 pedicels very short ; bracts and bractlets narrow caducous (South- 

 western North America*). 



102. Amorpha L. 5 — Calyx gamosepalous to a considerable height ; 

 teeth or lobes very nearly equal or lower ones longer ; aestivation 

 imbricated, often finally subvalvate. Petal 1, vexillary, obovate 

 erect unguiculate ; limb protecting reproductive organs. Stamens 

 10, connate at base into a sheath cleft above, higher free; alternipe- 

 talous stamens longer ; anthers uniform. Germen sessile ; ovules 2, 

 descending ; style curved, glabrous or villous ; stigma small terminal. 

 Legume short oblong, lunulate or falcate, indehiscent. Seeds 1, 2. — 

 Shrubs or unclershrubs, glabrous or pubescent and sprinkled with 

 minute glandular dots ; leaves alternate imparipinnate ; leaflets 

 numerous; stipels usually setaceous, very caducous; stipules 



1 Species about 15. Tons. & Ge., FL N. 699.— A. Geay, in Bost. Journ. of Nat. Hist., 



Amer., i. 309.— Bot. Mag., t. 1707.— Mokic, vi. 173.— A. Sceeele, in Limuca, xxi. 462.— 



PI. Nouv. Amer., t. 44 {Dalea) .— Walp., Sep., H. B>\, in Adansonia, ix. 239. — Walp., Ann., 



i. 651 ; Ann., ii. 359 ; iv. 481. ii. 360. 



■■ Nov. Gen. et Spec, vi. 489, t. 592.— DC, 5 Gen., n. 861.— Lame., Diet., i. 137; Suppl., 



Prodr., ii. 257.— Endl., Gen., n. 6525.— B. H., i. 330; III., t. 621.— G-ert>\, Fruct., ii. 304, t. 



Gen., 492, n. 86. 144.— DC, Prodr., ii. 256.— Endl., Gen., n. 



3 White. 6524.— Ii. H., Gen., 492, u. 87.—BonaJidia 



4 Species 3. Toee. & Ge., Fl. N. Amer., i. Neck., Elem., n. 1364. 



