VORTRÄGE ÜBER 



BOTANISCHE 

 STAMMESQESCHICHTE 



ERSTER BAND: 



ALGEN UND PILZE. 



i 



^ 



Motto: The most difficult as well 

 as the most fascinatiiig problem in 

 connection with any groiip is its 

 phylogeny. The data upon which 

 we base opinioiis conceniiiig phylo- 

 geny are ne\er sufficient but such 

 opinions usually stimulate research 

 and are necessary to progress 



Coulter 189S 



JENA 



VERLAG VON GUSTAV FISCHER 



1907. 



