LEGUMINOS^ 



669 



Often planted in the eastern United States as an ornamental tree, and hardy as 

 far north as New England; and rarely in western and southern Europe. 



13. EYSENHARDTIA, H.B. K. 



Small glandular-punctate trees or shrubs, with slender terete branches. Leaves 

 alternate, equally pinnate, petiolate; leaflets oblong, mucronate or emarginate 

 at the apex, short-petiolulate, numerous, stipellate; stipules subulate, caducous. 

 Flowers short-pedicellate, in long spicate racemes, terminal or axillary, with subu- 

 late caducous bracts; calyx-tube campanulate, conspicuously glandular-punctate, 

 5-toothed, the acute teeth nearly equal, persistent; disk cupuliform, adnate to the 

 base of the calyx-tube; corolla subpapilionaceous ; petals erect, free, nearly equal, 

 oblong-spatulate, rounded at the apex, unguiculate, creamy white; standard con- 

 cave, slightly broader than the wings and keel; stamens 10, inserted with the petals, 

 the superior one free, shorter than the others, the remainder united to above the 

 middle into a tube; anthers uniform, oblong; ovary subsessile, contracted into a 

 long slender uncinate style geniculate and conspicuously glandular below the apex; 

 stigma introrse, oblique ; ovules 2 or 3, rarely 4, attached to the inner angle of the 

 ovary, superposed. Legume small, oblong or linear-falcate, compressed, tipped with 

 the remnants of the style, indehiscent, pendent. Seeds usually solitary, rarely 2, 

 oblong-reniform, without albumen; seed-coat coriaceous; embryo filling the cavity 

 of the seed; cotyledons flat, fleshy; radicle superior, short and erect. 



Eysenhardtia is confined to the warmer parts of the New World, and is distributed 

 from western Texas and Arizona to southern Mexico, Lower California, and Guate- 

 mala. Four species are distinguished; of these three species occur within the terri- 

 tory of the United States, and in northern Mexico, and one species is found only in 

 Guatemala. Of the North American species one is a small tree. 



The generic name is in honor of Karl Wilhelm Eysenhardt (1794-1825), Pro- 

 fessor of Botany in the University of Konigsberg. 



1. Eysenhardtia orthocarpa, Wats. 



Leaves 4'-5' long, with pubescent rachises grooved on the upper side, 10-23 

 pairs of leaflets, and small scarious deciduous stipules; leaflets oval, rounded or 

 slightly emarginate at the apex, with stout petiolules and minute scarious deciduous 



