BUDS 



27 



General summary. — Tlie pupil should by this time be 

 self-informed as to — 



a. What a bud, as a whole, is. 



/'. What the reason for its formation is. 



c. What rudiments of future growth a,ro present, 



i^. How nearly these approach the full-grown condition 

 as to form. 



e. What parts are of merely temporary use. 



/. What the morphology of these parts is. 



Make a brief statement covering these points, by way of 

 summary of the work on Ijuds. 



For Supplementary Work, see the end of Chapter IV., where sugges- 

 tions for outdoor and indoor observations are made. 



IV. BUDS 

 GROWING BUDS 



28. In actively gro-w ing lierlis llie tip of the stem and 

 tlie rudiments of tlie coming leaves — appearing at first as 

 small prominences close to the apex — are usually pro- 

 tected from accidents. Bites of insects or other animals, 

 and extremes of 

 heat, light, dry- 

 ness, and cold, are 

 guarded against by 

 the maturer leaves 

 standing together 

 over the j'ounger 

 parts (Figs. 13, 14), 

 or by special cover- 

 ings. The forming 

 members of the Ijegonia slioot are sheathed l)y a pair 

 of scalelike appendages — stipules — at tlie base of the 

 highest full leaf (Fig. 15). In addition, in this plant, 

 the hot rays of the sun are in nature fended off by the 

 leaves themselves, which are raised uuilircllalike over the 



Terminal p(H'tinn of a sliool of Coleus; youiiy 

 leaves shielding tlic growing tip. 



