. The testimony of the rocks; . ven the mode of decay ofthis Zamia, as shown by the abrupt termination of its leaf-lets, exactly resembled that of its existing congeners. () The withered points of the pinnae of recent Zamisedrop off as if clipped across with a pair of scissors; and infossil fronds of this Zamia of the Lias we find exactly thesame clipped-like appearance. (Fig. 135.) Another ScotchZamia (Fig. 136), which occurs in the Lower Oolite ofHelmsdale, resembles the Eathie one in the breadth of itsleaflets, but they are not wholly so rectilinear, diminishingslightly towards thei
. The testimony of the rocks; . ven the mode of decay ofthis Zamia, as shown by the abrupt termination of its leaf-lets, exactly resembled that of its existing congeners. () The withered points of the pinnae of recent Zamisedrop off as if clipped across with a pair of scissors; and infossil fronds of this Zamia of the Lias we find exactly thesame clipped-like appearance. (Fig. 135.) Another ScotchZamia (Fig. 136), which occurs in the Lower Oolite ofHelmsdale, resembles the Eathie one in the breadth of itsleaflets, but they are not wholly so rectilinear, diminishingslightly towards their base of attachment; they are ranged,too, along the stem or midrib, not at a right angle, but atan acute one; the line of attachment is not set awry, buton the general plane of the leaf; and the midrib itself isconsiderably less massive and round. A third species fromthe same locality bears a general resemblance to the latter; FOSSIL FLORAS OF SCOTLAND. 481 but the leaflets are narrower at the base, and, as the print Fig. indicates (Fig. 136), so differently attached to the stem, that Fig. 136
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