. The testimony of the rocks; . from their greatest breadth than those of lanceolata^ intoa pseudo-footstalk; and the contraction takes place notalmost equally on both sides, as in that species, but almostexclusively on the upper side. And so, provisionally atleast, this Helmsdale Zamia may be regarded as specificallynew. With the leaves of the Eathie Zamia, we find, in this FOSSIL FLORAS OF SCOTLAND. 483 northern outlier of the Lias, cones of a peculiar form,which, like the leaves themselves, are still unfigured andundescribed, and some of which could scarce have be- Fig. CONE. longed t
. The testimony of the rocks; . from their greatest breadth than those of lanceolata^ intoa pseudo-footstalk; and the contraction takes place notalmost equally on both sides, as in that species, but almostexclusively on the upper side. And so, provisionally atleast, this Helmsdale Zamia may be regarded as specificallynew. With the leaves of the Eathie Zamia, we find, in this FOSSIL FLORAS OF SCOTLAND. 483 northern outlier of the Lias, cones of a peculiar form,which, like the leaves themselves, are still unfigured andundescribed, and some of which could scarce have be- Fig. CONE. longed to any coniferous tree. In one of these (Fig. 138),the ligneous bracts or scales, narrow and long, and grad-ually tapering till they assume nearly the awl-shaped form,cluster out thick from the base and middle portions of thecone, and, like the involucral appendages of the hazel-nut,or the sepals of the yet unfolded rose-bud, sweep gracefullyupwards to the top, where they present at their marginsminute denticulations. In another species the bracts arebroader, thinner, and more leaf-like: they rise, too, morefrom the base of the cone, and less from its middle por-tions ; so that the whole must have resembled an enormousbud, with strong woody scales, some of which extended 4:84 ON THE LESS KNOWN from base to apex. The first described of these two spe-cies seems to have been more decidedly a cone than theother; but it is probable that they were both constating Fiff. 139.
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