A still better-known pine, which, like those already mentioned, has its needles in pairs, is the stone pine (Pinus pinea), called by the French _Pin de parasol_ and by the Italians _Pino a pinocchi_. This fine tree (usually bigger than the Pinaster) has been largely planted in Italy on account of its picturesque appearance. This is the tree which one sees so often in Turner's landscapes. The needles are 5 to 6 inches long, and the cones are very large and almost spherical, being often 5 inches long and 4 inches in diameter. The cones do not mature until the third year. The scales are very large and solid, which renders it difficult to extract the nut-like seeds, which are roasted and eaten. Hence the name stone-pine. The spreading, parasol-like shape of the stone-pine is characteristic. A few specimens are to be seen in cultivation in this country. In order to distinguish Pinus sylvestris from P. halepensis, laricio, pinaster, and pinea, the deep blue-green colour of the foliage of the first is sufficient, together with the shortness of its needles. To distinguish the others among themselves (except in the case of well-grown typical examples) it is necessary to examine the cones closely, and often when one comes upon these trees they are, on account of the season, devoid of these distinguishing products. [Illustration: FIG. 40.--Female Cone of the Monterey Pine of California (Pinus insignis). Of the natural size, but somewhat larger specimens are frequent. The characteristic three foliage needles in a bunch, in place of two or five distinctive of some other species of Pinus, are shown in the drawing on the left.--(From Veitch's "Manual of Coniferæ.")]