THE LEAF-BUD. 



41 



01, Corm of Crocus, ■with new ones forming above ; 62, Vertical section of tlie same ; 63, Ac- 

 tion of bulb of Hyacinth with terminal scape and axillary bulblet ; 64, Section of bulb of Oxalla 

 violacea, with axillary scapes. 



19-1. The tuber, corji and bulb are analosous forms approaching by degrees 

 to tho character of the bud, which consists of a little axis bearing a covering oJ 

 scales. In the tuber the axis is excessively developed whUe the scales are reduced 

 to mere linear points. In the corm the analogy is far more 65 



evident, for the axis is less excessive and the scales more 

 manifest, and lastly in the bulb the analogy is complete, or '^ • *"•" * 



overdone, the scales often becoming excessive. 



CHAPTEE VI. 



THE LEAF-BUD. 



195. It is but a step fi-om tlie study of the bulb 

 to that of the leaf-bud. Buds are of two kinds in 

 respect to their contents; the leaf-hud containing 

 the rudiments of a leafy stem or branch, the flower- 

 hud containing the same elements transformed into 

 the nascent organs of a flower for the purpose of 

 reproduction. 



196. The leap-bud consists of a brief, cone- 

 shaped axis with a tender growing point, bearing a 

 protecting covering of imbricated scales and incip- 

 ient leaves. 



65. Branch of pear tree. The terminal bud o, having been de- 

 etroyed, an axillary bud supplied its place, and formed the axis S. 

 c. Thickened branch with flower-buds, t?, branch with leaf-bnds. 

 66. % section of terminal bud ; I, of axillary bud. 



