162 D. KOLLER 



tempting to ascribe profound meanings to biological phenomena. 

 Yet if such meanings actually exist their elucidation may be of the 

 utmost importance. With regard to germination, we can only 

 point to the general fact that cultivated species, in which 

 dormancy has been selected against, require constant reseeding, 

 while most wild species, in which regulated germination has been 

 naturally selected for, are hard to eradicate by any single 

 treatment. This fact is suggestive, but experimental techniques 

 have to be devised for testing the hypothetical ecological 

 implications of the so-called dormancy in seeds. 



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