= een Ha. 
BUDS AND STIPULES. 223 
two pairs of scales, which are modified petioles bearing just a 
trace of an undeveloped lamina at the apex. 
The outer pair of scales are the most modified, cohere by: 
their edges, are inserted right and left of the axis, and like- 
wise of the leaf in whose axils they occur. They are brownish- 
red, glabrous, shining, and for a time increase in size with the 
swelling of the buds in spring. Finally, they burst antero- 
posteriorly along the line of union for 2 to ? of their length, the 
greatest amount of fission occurring, as a rule, along the posterior 
face, allowing the developing axis with its leaves to make its 
exit at the apex. Each of these scales is keeled, the keel cor- 
responding to the midrib. Three or five veins may be seen on 
the inner face, corresponding to the principal vascular bundles 
running through the petiole into the lobes of the lamina. Three 
of them generally terminate in gland-like tips. 
The second pair of scales are more membranous, pale green, 
five-nerved, reticulate, cohering in a tube, which bursts from 
the apex downwards for 3 to à their length, or more when 
growth is resumed in spring. They double their length during 
and after the expansion of the buds, and are therefore more 
intermediate in character between the most modified pair of 
scales and the true leaves. The three principal veins terminate 
m gland-like teeth, thus, possibly, indicating the presence of the 
lamina in an undeveloped state. When fully developed, they 
are seen to be spathulate by a dilatation of the upper half. 
If the terminal bud is examined, it will be seen that the scales 
are opposite, decussate, and serially continuous with the upper- 
" pair of leaves that fell in the previous autumn. The young 
"i In spring are serially continuous with both the two pairs 
scales and the leaves of the previous season. Unless the 
terminal bud ends in an inflorescence, the shoots of successive 
years are interrupted only by two pairs of scales. Strong shoots, 
à rule, terminate in an inflorescence, and the apex dies, so that 
a 18 resumed by the lateral buds. 
ad ne flowering buds the second pair are larger, vase-shaped, 
which bear Ine deeply divided, especially on one side. Those 
r leaves only are flattened at right angles to the stem. 
ý a rnum Lantana, Linn.—In V. Lantana (figs. 36 & 37), on 
sinner K the leaves are all normal. The outer ones protect 
ey are ut they all develop and suffer very little from the cold. 
and inter protected by a thick coat of stellate hairs, which cross 
cross, thus forming a sort of grey felt. As the young 
