62 



Richard H. Bocrkcr 



Tables XIII, XIV, and XV take the same data as presented in 

 previous tables but the results are given by number of species 

 rather than by average numbers. The number of species in each 

 group which performed certain things under certain conditions 

 are given without respect to the name of the species. This is 

 perhaps a better way of drawing conclusions than to use average 

 figures. Each species is counted in its proper column; if a 

 species, for example, germinated simultaneously in two cultures 

 it counted one half in each column. 



TABLE XIV 



Summary of the Length of the Germination Period by Number of 



Species 



Light 



Soil Texture 



Out of 34 species 31 germinated first in either of the two 

 shade cultures and only 3 began their germination in the open 

 light. The tendency to germinate first in the shade is more 

 marked in the case of the xerophilous and the mesophilous species 

 and less marked in the xero-mesophilous. Out of 27 species, 



