CONIFERS 



387 



or less evident midrib, which seem to consist of the 

 whole leaf modified. These are followed by a few 

 oblong obtuse, or subacute scales (Figs. 314, 315) which 



Fig. 309. 



Fig. 310. Fig. 311. Fig. 312. 

 I I 



u 



Fig. 313. Fig. 314. Fig. 315. Fig. 316. Fig. 317. Fig! 318. 



FiQ. 309. — Apical and two lateral tuds. p. I, pedestals of leaves after the greeu 



portion has been removed. 

 Fig. 310. — Normal and perfect leaf. I, leaf; ■p, pedestal ; J, basal portion decurreiit 



upon the axis. 

 Fig. 311. — Slightly modified small leaf. I, leaf ; p and 5, pedestal and base merged 



in one another. 

 Figs. 312, 313. — Leaves now modified to triangnlar acuminate scales with a midrib. 

 Figs. 314, 31.'5. — Succeeding forms of scales. 

 Figs. 316-318. — Inner scales after they have elongated, about the middle of April. 



Z, Z, in Figs. 316, 317, would seem to represent the lamina, surmounting elongated 



pedestals ; the same portion in Fig. 318 is hooded over tlie apex of the bud ; 



the lower portions are membranous and transparent. 



are still coriaceous ; the inner ones elongate slightly 

 in spring.^ 



The innermost scales (Figs. 316-318) are as long 



' Avebury, On Buds and Stipules. 



