204 ROSES: LARCH 



Rosa spinosissima, L. Scotch Rose, Burnet Rose. A 

 smaller and more erect bush than R. canina. Twigs 

 rounded ; prickles expanded at base. Lateral accessory 

 buds may occur. 



R. villosa, Downy Rose, is larger, more downy, and 

 has no glandular hairs. 



(b) Twigs devoid of thorns or prickles, quite unarmed, 

 (i) Buds few, at the tips of short, stout, hard 

 tubercle-like dwarf-shoots, ringed with 

 scales, and in the axils of projecting leaf- 

 bases on the slender long twigs. Conifer. 



Larix europcea, L. Larch (Fig. 105). The twigs are 

 thin and flexuous, glabrous, green to tawny, and more or 

 less angular and furrowed with the numerous decurrent 

 spirally disposed leaf-bases, each of which bears a small, 

 almost elliptical leaf-scar, with one small leaf-trace. They 

 often carry old cones, woody, thin-scaled, and short oblong. 

 The buds give rise to many-leafed tufts of tender green 

 linear foliage. Young cones crimson. 



Buds few, here and there on the long shoots in the 

 axils of leaves, brownish, with resinous scales, and standing 

 off nearly at right-angles; in section showing a small pith, 

 and resinous irregular cortex. Twigs leather-yellow or 

 greyish, long and pendent. 



The bud consists of leaves transformed into scales, 

 arching over the terminal dome bearing true leaves. 



Each bud begins with two small scales right and left, 

 one of which is more ciliate than the other and overlaps 

 it at first : the next scale is opposite the axis, then follow 

 others in a high spiral, about -f-%. The outer scales 

 are membranous, triangular-ovate and slightly pubescent, 

 passing gradually into more delicate, broader and more 

 rounded scales as we go inwards, and then suddenly to 

 the green foliage leaves. As development proceeds the 



