84 SAPINDACE^E. [Arri:. 



diam., pubescent when young; petiole 1-1 J in., slender. Corjiml* 1-2 in. 

 Fluirtrs \ in. diam., green, shortly pedicelled. Sepals linear-oliloiiLr. /' '"/.< 

 similar, but narrower ; wings of fruit linear-oblong, slightly curved, each 

 J in. long. DlSTRiB. Europe, from Denmark southwards. W. 

 A. PSEUDOPLAT'ANTS. L. \ leaves 5-angled 5-lobed, lobes crenate-serrate, 



racemes elongate pendulous, wings of fniit divergent. Great 



Sycamore, Plane of Scotland. 



Thickets and woods ; naturalized onlv ; fl. May-June. A tall umbrageous 

 tree, 40-fifl ft. />/// smooth, outer layer deciduous. Li-tifr* 4-8 in. diam., 

 glaucous beneath, lobes acute or acuminate. Flowers as in A. cani/.<ti-'-, 

 but pedicels shorter, and stamens longer. Ovary villous. Santa run li in., 

 scimitar-shaped. DISTRIB. Mid. Europe and W. 'Asia. Sap sugary. Wood 

 much used for turnery, &c. 



ORDER XXVI. LEGUMINO S^E. 

 Suborder PAPILIOXA'CE*. 



Herbs, rarely shnibs. Leaves alternate, 3- or more-foliolate, rarely simple ; 

 stipules usually present ; leaflets often stipellate. Inflorescence various. 

 Flowers irregular. Calyx of 5 connate sepals, often 2-lipped. Petal* 5, 

 very unequal, free or 2 or more adherent by their claws to the stamina] 

 tube, imbricate in bud ; upper (standard) broad, often reflexed, exterior in 

 bud ; 2 lateral (wings) parallel, enclosing and sometimes iidhrring to tin- ~1 

 lower (keel], which are interior in bud, and free, or connate by their lower 

 edges. Stamens 10, perigynous, filaments united into a sheath, or tlie 

 upper one free, their free tips equal or alternate longer ; anthers usually 

 versatile. Disk lining the base of the calyx-tube. Ovary of one 1-eelled 

 carpel, included in the staminal sheath ; style incurved, stigma simple 

 oblique or terminal ; ovules 2 or more, 1-2-seriate on the ventral suture, 

 cajnpylotropous or anatropous, horizontal erect or pendulous. /'//'// a dry 

 pod (legume) dehiscent along one or both sutures or not at all, continuous 

 or septate internally. Seeds with a coriaceous testa, and simple or dilated 

 fiinicle, albumen 6 ; cotyledons plano-convex, radicle incurved, iiieuin- 

 bent. DISTRIB. Chiefly N. temp, but found all over the globe ; few in 

 New Zealand ; genera 295 ; species 4,700. AFFINITIES. Principally with 

 Jtosacecc. PROPERTIES too numerous to mention here. 



The tribal characters here given apply to British Genera to the exclusion 

 < I many exotic members. 



SKRIES 1. Leaves 1- to B-foliolate, without tfifrt'/.*. 



TRIBE I. GENIS'TE-ffl. Shrubs. Leaves or 1-foliolate or digitately com- 

 pound ; leaflets quite entire. Mamen* all united. Pod 2-valved. 



Calyx shortly 2-lipped, lips deeply toothed 1. Genista. 



Calyx deeply 2-lipped, yellow 2. Hex. 



Calyx shortly 2-lipped, lips minutely toothed 3. Cytisus. 



TRIBE II. TRIFO'LIEJE. Herbs, rarely shrubs. Leaven pinnately rarely 

 digitately 3-foliolate ; veins generally ending in teeth. Upper stamen 

 usually free. 

 Filaments all united 4. Ononis. 



