2.--Calamites nodosus with foliage; _nat._ _Coal-shale_, (see _ante_, p. 109). ] Pinites; a name applied to those fossil leaves and fruits which agree in their general character with the recent genus Pinus; upwards of thirty species are known.[149] In the Pines, as botanically distinguished from the Firs (_Abies_), the leaves arise in bundles of from two to five; and the scales of the cones are thickened, and terminate in discs more or less defined. In Firs, (Larch, Cedar, &c.) the scales have thin edges, and the leaves are solitary. [149] See Endlechen's Synopsis Coniferarum. Pinites Fittoni. _Geol. Isle of Wight_; 2d edit, p. 457.--Several cones with the above characters have been found in the Wealden formation. A cone figured and described by Dr Fitton, is remarkable for a double prominence on each scale: It was supposed to resemble the fruit of _Dammara_, but the strobilus of the latter is like that of the Cedar of Lebanon, in which the edges of the scales are thin. The Wealden fossil appears to be a genuine pine, and may be distinguished by the name of its discoverer, _Pinites Fittoni_; a small figure of the only known specimen is given, _Wond._ p. 399, _fig._ 4. I have collected from the Wealden strata of the Isle of Wight three or four small cones, which resemble those of a species of Araucaria; they are ovate, imbricated, with acuminated scales, which are recurved at the apex. The fossils figured in _Wond._ p. 399, _figs._ 2 and 3, are, I believe, water-worn specimens of the same species.[150] [150] I subjoin a definition of the genera Pinus and Abies, for the use of the student. Pinus.--_Fruit_-catkins ovate, roundish, or cylindrical closely set with thick two-flowered scales; forming an imbricated cone, composed of numerous ligneous angular, or flat, rigid scales, having attached to the inside of each two seeds crowned with a thin membraneous, falcate, oblong, or roundish wing; the scales are composed of a thick woody substance, forming an angular surface, with a recurved point. The Pines are evergreen trees, with from two to five narrow, angular leaves springing from each sheath. Cotyledons four to twelve. Abies.--Cones with thin flat scales, which are more membranous at the extremities than in Pines: the leaves are emarginate, short solitary, needle-shaped, angular or flat. [Sidenote: WALCHIA.]