96 ESSENTIALS OF BOTANY 
notches in the leaf-margin and are accompanied almost 
from the first by minute roots. 
Pin up a bryophyllum leaf on the wall of the room or 
lay it on the surface of moist earth, and follow day by 
day the formation and development of the buds which it 
may produce. 
This plant seems to rely largely upon leaf-budding to 
reproduce itself, for in a moderately cool climate it rarely 
flowers or seeds, but drops its living leaves freely, and from 
each such leaf one or several new plants may be produced. 
114. Review Summary of Chapter IX. 
Coverings. 
= leaf-buds. 
B 
ude Contents. . . { fovervs 
mixed buds. 
Classes of buds as regards j regular . 
position . ee 
irregular. 
Make a sketch of Fig. 58 as it looked in June of the same sum- 
mer ; also as it would look the following June (Fig. 58 represents the 
autumn condition). Sketch the twigs of Fig. 24 and Fig. 25 as seen 
one year later. 
