CORONILLA EMERUS.--Scorpion Senna. France, 1596. This shrub, a native of the middle and southern parts of Europe, forms an elegant loose bush about 5 feet high, with smooth, pinnate, sub-evergreen leaves, and Pea-shaped flowers, that are reddish in the bud state, but bright yellow when fully expanded. It is an elegant plant, and on account of its bearing hard cutting back, is well suited for ornamental hedge formation; but however used the effect is good, the distinct foliage and showy flowers making it a general favourite with planters. It will thrive in very poor soil, but prefers a light rich loam. CORYLOPSIS. CORYLOPSIS HIMALAYANA.--E. Himalayas, 1879. This is a stronger growing species than C. pauciflora and C. spicata, with large leaves averaging 4 inches long, that are light green above and silky on the under sides. The parallel veins of the leaves are very pronounced, while the leaf-stalks, as indeed the young twigs too, are covered with a hairy pubescence. C. PAUCIFLORA is readily distinguished from the former by its more slender growth, smaller leaves, and fewer flowered spikes. Flowers primrose-yellow. C. SPICATA.--Japan, 1864. This Japanese shrub is of very distinct appearance, having leaves like those of our common Hazel, and drooping spikes of showy-yellowish, fragrant flowers that are produced before the leaves. There is a variegated form in cultivation. The various species of Corylopsis are very ornamental garden plants, and to be recommended, on account of their early flowering, for prominent positions in the shrubbery or by the woodland walk. Light, rich loam seems to suit them well. CORYLUS. CORYLUS AVELLANA PURPUREA.--Purple Hazel. This has large leaves of a rich purple colour, resembling those of the purple Beech, and is a very distinct plant for the shrubbery border. Should be cut down annually if large leaves are desired. C. COLURNA.--Constantinople Hazel. Turkey, 1665. This is the largest and most ornamental of the family, and is mentioned here on account of the showy catkins with which the tree is usually well supplied. When thickly produced, as they usually are on established specimens, these long catkins have a most effective and pleasing appearance, and tend to render the tree one of the most distinct in cultivation. Under favourable circumstances, such as when growing in a sweet and rather rich brown loam, it attains to fully 60 feet in height, and of a neat shape, from the branches being arranged horizontally, or nearly so. Even in a young state the Constantinople Hazel is readily distinguished from the common English species, by the softer and more angular leaves, and by the whitish bark which comes off in long strips. The stipules, too, form an unerring guide to its identity, they being long, linear, and recurved. COTONEASTER.