iy6 



The cones are in clusters or solitary, smooth, sometimes rugose, globose, or 

 oval, obtuse, q lines long and about b lines in diameter, the three larger valves 

 being slightly dilated upwards ; the dorsal point not far remo\-ed from the apex 

 of the valves; \-alves \-alvate before opening, but the edges rounded afterwards, 

 central columella short, with three narrow sides. Seeds black, wings varying in 

 size up to 6 lines. 



III. li:aves. 



:i luoxoMic (vide ('hvmistry). 

 (b) Anatomy. 



The leaves in this species differ from those of its congeners, ni ha\-ing a 

 high and often sharp dorsal ridge in the decurrent portion, as seen in a cross section 

 taken anywhere in the internodes. This contour of the leaves is characteristic 

 and might be classed as almost specific amongst eastern species as evidenced 

 by a comparison with other specilfc sections reproduced in this work. 



The general structure conforms to that of C. glaiica, which may be taken 

 as characteristic of the type of the genus. 



The mesophyll and the parenchymatous cells, together with conjunctive 

 tissue, may be said to form the fundamental structure, the two latter being well 

 packed aroimd the leaf trace and phloem of the central column — composed of 

 the xylem and phloem of the branchlet to which the lea\'es are attached. The 

 transfusion cells are more numerous than those in C. glauca ; they are generally 

 clustered on each side of the leaf bundle and on the inner side of the oil cavity. 

 The palisade and spongy tissue are normally situated, the former being faced by 

 uniseriate hypodermal and epidermal cells. 



The oil cavity is situated in the upper part of the leaf and near the free 

 end, and between it and the stem runs a bundle with the phloem normally 

 orientated, and exceptions to this ha\e rarely been found. 



Immediately between the oil (•a\-ityand the jihloem of the leaf bundle, and 

 exterior to the phloem of the central stem of the branchlet, arc found a few 

 sclerenchymatous cells, a specific difference from C . glauca. 



A noteworthy distinctive feature is the scarcity of stomata, and even 

 these few are not surrounded with such well emphasised papillose projections 

 as in the leaves of C. glauca. The stomata occur in the cavities of the ventral 

 leaves as in C. glauca, but also on the concave surfaces of the dorsal cuticle of 

 the leaf, although few in number. 



This being a mountain species, perhaps the haljilat ma\' account lor the 

 different disposition of the stomata. 



