Henuy and Flood — The Dunkeld Hjihrid Larch. 61 



{h) Leaves. In all larches Ihoie are two sorts of leaves — (1) those 

 arising singly in sjjiral order on ilic long shoots ol' the cnrrent season ; and 

 (2) those borne in clusters of lliirty to sixty, at tiie summit of the short 

 shoots or spurs on the older twigs. 



In L. europaea the leaves are green without any ditlusod Mooni on their 

 surface, and with few stomatie lines, and on that account are not glaucous 

 in tint. 



In L. leptolepis the leaves are distinctly glaucous, being covered on both 

 surfaces with a diffused waxy bloom ; while the two bands on their lower 

 surface, having more stomatie lines, are very conspicuous. 



The number and arrangement of the stomatie lines are given in the 

 concluding table. 



(c) Femcde flowers. The female flowers or very young cones of L. eureypaea 

 are deep pink in colour, as the bracts, which are straight arid not reflexed, 

 are brilliant red over most of their surface, except the green midrib and mucro. 



In L. leptolepis the female flowers are greenish in colour, as the bracts, 

 the upper halves of which are reflexed downwards, are tinged pink only on 

 their extreme edge, most of their surface being green. 



{d) Cones. The cones of L. europaea are dark purple before ripening, 

 ultimately becoming brown, conical in shape, being broadest neai- the base, 

 and tapering to the apex ; scales appressed, upper margin straight or 

 incurved, basal half of the outer surface pubescent; bracts exceeding half 

 the length of the scales, with their tips exserted and visible externally ; 

 peduncle yellow. 



The cones of L. leptolepis are globose, being small at both ends, green 

 before ripening, turning brown when mature ; scales loose, not tightly 

 appressed, upper margin thin and reflexed, variable in pubescence ; bracts 

 short, not exserted ; peduncle reddish. 



II. Larix eurolepis, A. Henry. This hybrid is remarkably intermediate 

 between the two parents, as will be seen on comparing their descriptions just 

 given, item for item, with the account which follows. The Dunkeld hybrid 

 larch, as stated above, has ascending branches, and is considerably narrower 

 in the crown than the Japanese larch, which it excels in vigour of growth. 



(ff) Tiriijs. Young shoots either glabrous or slightly hairy, always with 

 some bloom on their surface, but less marked than in the Japanese larch. 

 Twigs of the second year, closely resembling those of the European larch, 

 being grej'ish-yellow with orange-tipped pulvini.^ Buds non-resinous, ligiit 



' The twigs of L. eurolepis are always greyish-yellow, with orange-tipped pulvini on 

 the upper surface ; and are usually of the same tint beneath. Occasionally, however, 

 the surface in the shade and directed towards the ground, is of a dull reddiah-hrown 

 tint. 



