s, but they are not wholly so rectilinear, diminishing
slightly towards their base of attachment; they are ranged, too, along
the stem or midrib, not at a right angle, but at an acute one; the line
of attachment is not set awry, but on the general plane of the leaf; and
the midrib itself is considerably less massive and round. A third
species from the same locality bears a general resemblance to the
latter; but the leaflets are narrower at the base, and, as the print
indicates (Fig. 136), so differently attached to the stem, that from the
pressure in the rock most of them have become detached; while yet a
fourth species (Fig. 137), very closely resembles a Zamia of the
Scarborough Oolite,--_Z. lanceolata_. The leaflets, however, contract
much more suddenly from their greatest breadth than those of
_lanceolata_, into a pseudo-footstalk; and the contraction takes place
not almost equally on both sides, as in that species, but almost
exclusively on the upper side. And so, provisionally at least, this
Helmsdale Zamia may be regarded as specifically new.

[Illustration: Fig. 135.]

[Illustration: Fig. 136.]

[Illustration: Fig. 137.]

[Illustration: Fig. 138.

CONE.]

With the leaves of the Eathie Zamia, we find, in this northern outlier
of the Lias, cones of a peculiar form, which, like the leaves
themselves, are still unfigured and undescribed, and some of which could
scarce have belonged to any coniferous tree. In one of these (Fig. 138),
the ligneous bracts or scales, narrow and long, and gradually tapering
till they assume nearly the awl-shaped form, cluster out thick from the
base and middle portions of the cone, and, like the involucral
appendages of the hazel-nut, or the sepals of the yet unfolded rose-bud,
sweep gracefully upwards to the top, where they present at their margins
minute denticulations. In another species the bracts are broader,
thinner, and more leaf-like: they rise, too, more from the base of the
cone, and less from its middle portions; so that the whole must have
resembled an enormous bud, with strong woody scales, some of which
extended from base to apex. The first described of these two species
seems to have been more decidedly a _cone_ than the other; but it is
probable that they were both connecting links between such leathern
seed-bearing flowers as we find developed in _Cycas revoluta_, and such
seed-bearing cones as we find exemplified in _Zamia pungens_. The
bud-like cone, however, d