228 PRACTICAL BOTANY. 



Style ]. Flowers all perfect. Leaves alternate. 

 Shrubs 6(50 



660. Ovary 4- to 5-cellecl. Fruit a drupe, or a pod. 



Stamens 4 or 5 661 



Ovary 1-eelled. Fruit a reddish drupe. Stamens 

 8. Perianth funnel-shaped, 4- (or 5-) toothed, wavy, or trun- 

 cate. Flowers light y^ellow, 3 togetlier, from a bud of 3 dai'k 

 liairy scales, preceding the alternate leaves. 



Dirca palustris, L. 

 661 • Leaves evergreen, elliptical, rustj beneath, the 

 margins replicate. Flowers all perfect. Petals 5, spreading. 

 Calyx very small, obscurely 5 -toothed, or almost obsolete. 

 Stamens 5. Fruit a pod. (153) Ledum latifolium, Ait. 

 Leaves deciduous, not rusty beneath, nor revolute. 

 Flowers polygamous. Fruit a berry-like drupe, black. 

 Calyx 4- or 5-cleft. Stamens 4 or 5. (^^^) Rhamnus. 



669. Ovary 1-celled. Fruit dry, nut-like, or a globular 

 drupe. Stamens 4 or 5. Flowers monoeciously-polygamous. 



663 

 Ovary 2 -celled. Fruit a double samara with oppo- 

 site wings. Stamens 3-8. Calyx 5- cleft. Leaves deeply 5- 

 lobed, silvery white or whitish. (l^*^) Acer. 



663. Anthers introrse. Fruit a drupe. Calyx of the 

 perfect flowers 5-, that of the staminate 6-parted. Stamens 

 as many as the calyx-lobes. Flowers greenish, axillary, the 

 upper fertile (solitary or in pairs) peduncled, the lower 

 staminate, clustered along the base of the young branches. 

 Leaves cordate, ovate, or very long and taper-pointed, entire. 



Oeltis (785). 

 Anthers extrorse. Fruit nut-like, stalked in the 

 calyx, beset with irregular, rough projections. Flowers in 

 small, axillary clusters. Leaves small. 



Planera aquatica, Gmel. (785). 



664. (654.) Ovary superior 665 



Ovary inferior 693 



66^. Perfect, staminate and j^istillate (or only staminate 



and pistillate) flowers on the same plant 666 



Flowers all perfect, and the perianth 5- or 4-parted, 

 cleft, or scpalled • 668 



