VERNATION. 



73- 



134. The pupil should make himself well acquainted with 

 these seven modes of cestivation (So the botanists call it). 

 Other modes are described in larger -wprks. (Class Book of 

 Botany, p. 79.) 



135. Also in the leaf-bud we find similar modes of leaf-, 

 folding (here called vernation, from the Latin vernus,- spring, 

 as cestivation is from mtivus, summer). The figures follow- 

 ing represent cross-sections of various sorts of leaf-buds. In 

 the bud of Sycamore the infolding scales are imbricate, but 

 the young leaves within are somewhat plicate. 



136. In the leaf-bud of Cherry (Fig. 230) we find the con- 

 volute vernation, similar to the cestivation of Wall-flower. 

 The leaf-bud of Lilac (Fig. 231) gives us another 'form 'of 

 imbricate. 



g2T 228 229 



Vernation.— JRj7. 225. Unfolding leaf-bnd of Tulip-tree,— reclinate. Fig. 226. 

 Fern leaf-bud,— ciroinate. Fit/. 227.- Sedge,— eqiiitant. Fig. 228. Sage,— ob volute. 

 Fig, 229. Iris,— equitant. 



137. Fig. 229 represents the vernation of Iris, and Fig. 227, 

 of a Sedge-grass. Both are equitant (which means, in Latin, 



134. What is the meaning of the word wstimtion 



135. What is the meaning of the word 

 vernation in Sycamore leaf-bud. 



136. In the leaf-bud of Cherry ; Lilac. 

 137 What of the equitant vernation ? 



4 



vernation ? Please describe tho 



