A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . POSSIL FLORA. 57 PLATE XX. SiGILLARIA. {Euphorbites vulgaris, of Artis.) Thjs species is characterized by the remarkable fish-like form of the cicatrices left by thebase of the leaf-stalks, and by the rapid tapering of the upper part of the stem, as shown inthe reduced figure 1, which represents a specimen nine feet long, five feet in circumferenceat the base, and only twenty-one inches in circumference at the upper end
A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . POSSIL FLORA. 57 PLATE XX. SiGILLARIA. {Euphorbites vulgaris, of Artis.) Thjs species is characterized by the remarkable fish-like form of the cicatrices left by thebase of the leaf-stalks, and by the rapid tapering of the upper part of the stem, as shown inthe reduced figure 1, which represents a specimen nine feet long, five feet in circumferenceat the base, and only twenty-one inches in circumference at the upper end. The ridges, which at the superior extremity are simple and narrow, and parted only by asingle line, become at the lower part of the stem wide and flat, and are separated by a grooveof equal breadth, as seen in fig. 3, which is taken from b, fig. 1. Fig. 2, represents a portion towards the upper end, at a, fig. 1; and exhibits the differentappearance of the bark, and the under surface, when the cortical investment is removed ; theimprints in each case differing very much in appearance. The specimen from which the drawing was taken, was from a sandstone quarry near Alto
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectpaleontology, bookyea
