ACER.] SAPINDACEJE. 89 



2- rarely 3-4-lobed and -celled ; styles 2, filiform, stigmatose on the inner 

 surface ; ovules 2 in each cell, attached by a broad base, superposed or 

 collateral. Fruit of 2, rarely 3 or 4 spreading samaras. Seed ascending, 

 compressed, testa membranous, inner coat fleshy ; cotyledons plaited, 

 radicle long. DISTEIB. Europe, N. Asia, N. America, Java, the Hima- 

 laya, and Japan ; genera 3 ; species 50. AFFINITIES. Allied to Celas- 

 trinece. The Tribe Aceri'nece differs from the others of this great tropical 

 Order chiefly in the opposite leav^ and stamens inserted on (not within) 

 the disk. PROPERTIES. Several American maples yield sugar. 



i. A'CER, L. MAPLE. 



Leaves simple, entire or lobed. Disk annular. DISTRIB. of the Tribe. 

 ETYM. The Latin name. 



A. campes'tre, L. ; leaves reniform obtusely 5-lobed entire lobulate 

 or crenate, corymbs erect, wings of fruit horizontal. Common or Small- 

 leaved Maple. 



Thickets and hedgerows, from Durham southd. ; naturalized in Scotland ; 

 Ireland; Channel Islands; fl. May-June. Small tree 10-20 ft., with 

 spreading branches; bark rough, fissured; wood beautiful, fine-grained. 

 Leaves 2-4 in. diam., pubescent when young; petiole 1-1 in., slender. 

 Corymbs 1-2 in. Flowers J in. diam., green, shortly pedicelled. Sepals 

 linear-oblong. Petals similar, but narrower ; wings of fruit linear-oblong, 

 slightly curved, each ^ in. long. DISTRIB. Europe, from Denmark southd., 

 N.and W.Asia. 



A. PSEUBOPLAT'ANUS, L. ; leaves 5-angled, 5-lobed, lobes crenate-serrate, 

 racemes elongate pendulous, wings of fruit divergent. Great Maple, 

 Sycamore, Plane of Scotland. 



Plantations, &c. ; fl. May-June. An umbrageous tree, 40-60 ft. Bark smooth, 

 outer layer deciduous. Leaves 4-8 in. diam., glaucous beneath, lobes acute 

 or acuminate. Flowers as in A. campestre, but pedicels shorter, and stamens 

 longer. Ovary villous. Samaras 1^ in,, scimitar shaped. DISTRIB. Mid. 

 Europe and W. Asia. Sap sugary. "Wood much used for turnery, &c. 



ORDER XXT. LEGUMlNO'S-ffi. 



Sub-order PAPILIONA'CE^;. 



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

 stipules usually present ; leaflets often s-tipellate. Inflorescence various. 

 Floiuers irregular, proterandrous. Calyx of 5 connate sepals, often 2-lipped, 

 Petals 5, very unequal, distinct or 2 or more adherent by their claws to the 

 staminal tube, imbricate in bud ; upper (standard) broad, often reflexed, ex- 

 terior in bud ; 2 lateral (wings) parallel, enclosing and sometimes adhering 

 to the 2 lower (keel), which are interior in bud, and distinct, or connate by 

 their lower edges. Stamens 10, perigynous, filaments united into a sheath, 



