But the most beautiful feature of all in the maple is what is known as bruscum, and, even more particularly so, the molluscum. These are both of them tuberosities of this tree, the bruscum presenting veins more violently contorted, while those of the molluscum are disposed in a more simple and uniform manner: indeed, if this last were of sufficiently large size to admit of tables being made of it, there is no doubt that it would be preferred to the wood of the citrus even. At the present day, however, we find it but little used except for the leaves of tablets, or as a veneer for couches.[2379] Tuberosities are also found on the alder,[2380] but as much inferior to those already mentioned, as the alder itself is to the maple. In the maple the male tree[2381] is the first to blossom. The trees that frequent dry spots are preferred to those that grow in watery localities, which is the case also with the ash. There is found in the countries beyond the Alps a tree, the wood of which is very similar to that of the white maple, and which is known as the staphylodendron.[2382] This tree bears a pod[2383] in which there is found a kernel, which has the flavour of the hazel-nut. CHAP. 28.—THREE VARIETIES OF THE BOX-TREE. One of the most highly esteemed of all the woods is the box,[2384] but it is seldom veined, and then only the wood of the root. In other respects, it is a wood, so to say, of quiet and unpretending appearance, but highly esteemed for a certain degree of hardness and its pallid hue: the tree, too, is very extensively employed in ornamental gardening.[2385] There are three[2386] varieties of it: the Gallic[2387] box, which is trained to shoot upwards in a pyramidal form, and attains a very considerable height; the oleaster,[2388] which is condemned as being utterly worthless, and emits a disagreeable odour; and a third, known as the “Italian” box,[2389] a wild variety, in my opinion, which has been improved by cultivation. This last spreads more than the others, and forms a thick hedge: it is an evergreen, and is easily clipped. The box-tree abounds on the Pyrenean[2390] range, the mountains of Cytorus, and the country about Berecynthus.[2391] The trunk grows to the largest size in the island of Corsica,[2392] and its blossom is by no means despicable; it is this that causes the honey there to be bitter.[2393] The seed of the box is held in aversion by all animals. That which grows upon Mount Olympus in Macedonia is not more slender than the other kinds, but the tree is of a more stunted growth. It loves spots exposed to the cold winds and the sun: in fire, too, it manifests all the hardness of iron; it gives out no flame, and is of no use whatever for the manufacture of charcoal.[2394] CHAP. 29. (17.)—FOUR VARIETIES OF THE ELM.