The flowers may be looked for from January to May, and will be found clustered between the leaf and the stem. These are quite small and inconspicuous, of a whitish-green colour, and the sexes are in separate flowers. The uppermost one in the centre of each cluster is a female flower; the others are males. The males consist of four petals, enclosing a rudimentary ovary, from beneath which spring four stamens. The sepals of the female flower vary in number, from four to twelve, and enclose a rounded ovary with three styles, which are ripe and protruded before the males open. This develops into the three-celled capsule with three diverging beaks, which correspond with the styles, and in each cell there are one or two black seeds. [Illustration: Box. A, male flowers; B, female flower.] The growth of the tree is very slow, and, in consequence, the grain of its wood is very fine. It is also very hard, and so heavy that alone among native woods it will not float in water. On account of its fine grain and hardness, it is in request by the turner and mathematical instrument maker, and was formerly largely used by the wood-engraver for "woodcuts." Since the introduction of the photographic "process" blocks, the industry of preparing Box-wood for the engraver must have become all but extinct, and for that reason Box plantations must be less valuable assets than formerly. It is on record that when the Box Hill trees were cut in 1815, the "fall" realized nearly [L]10,000. Box Hill is in no sense a plantation; its slopes and summit are clothed with a natural mixed wood of Box, Oak, Beech, and Yew. Beneath every Box-tree will be found hundreds of seedlings of various ages. Some of these may be seen in our photograph, which depicts naturally grown Box-trees on the famous hill. It will be noted that their "habit" is widely different from that of the more bush-like forms so familiar in gardens. PART II. EXOTIC TREES AND SHRUBS. We have already given descriptions and illustrations of several exotic species in Part I., where it seemed more advantageous to the reader to include them with British species of the same genus; those now to be dealt with are in all cases members of genera not represented in our native Flora. The Plane (_Platanus orientalis_).