in botany; a genus of plants of the class pentandria, order trigynia, and in the natural system arranged under the 43rd order, dumosa. The calyx is quinquepartite and above; the corolla divided into five laciniae; the fruit a monospermous berry. There are 19 species; two of which, the lanata and opalus, are natives of Britain. 1. The lanata, common viburnum, wayfaring, or plant mealy tree, rises with a woody stem, branching twenty feet high, having very pliant shoots covered with a lightish brown bark; large heart-shaped, veined, serrated leaves, white and hoary underneath; and the branches terminated by umbels of white flowers, succeeded by bunches of red berries, &c. 2. The ovular, or gelder-rose; consisting of two varieties, one with flat flowers, the other globular. The former grows eighteen or twenty feet high, branching opposite, of an irregular growth, and covered with a whitish bark; large lobated or three-lobed leaves on glandulose foot-stalks, and large flat umbels of white flowers at the ends of the branches, succeeded by red berries. The latter grows fifteen or or eighteen feet high, branching like the other, garnished with large lobated or three-lobed leaves, on glandular foot- stalks; and large globular umbels of white flowers at the ends of the branches, in great abundance. This tree when in bloom exhibits a singularly fine appearance: the flowers, though small, are collected numerously into large globular umbels round like a ball; hence it is sometimes called snow- ball-tree. 3. The tinus, common laurustinus, or evergreen viburnum; grows eight or ten feet high or more, branch- ing numerously from the bottom upwards, assuming a close bulky growth, with the branches somewhat hairy and glandu- lous; very closely garnished with oval, wholly entire leaves, of a strong green colour, placed in pairs opposite; and whitish red flowers, collected numerously in large um- bellate clusters all over the plant, at the sides and ends of the branches, from January until March or April, exhib- iting a most beautiful appearance. There are a great many va- rieties. All the different species of viburnum, both decidu- ous and evergreen kinds, being of the tree kind, are woody and durable in root, stem, and branches. They may all be propagated by layers; and are of such hardy tempera- ture, as to grow freely in the open ground all the year, in shrubberies, and other hardy plantations.