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A STUDY OF REGENERATION AS 

 EXHIBITED BY MOSSES. 



1. INTRODUCTION. 



That the sexual generation of the Bryophytes is endowed 

 with a remarkable power of regeneration is a well-known 

 and oft-stated fact. The extent to which this is true for the 

 liverworts has been shown by the investigations of Vöch- 

 ting 1 "Über die Regeneration der Marchantieen" and of 

 Sclwstakoititscli 2 "Über die Reproduktion und Regenera- 

 tionserscheinungen bei den Lebermoosen". As far as the 

 mosses are concerned. the generalizations have been based 

 upon scattered and isolated observations by Schimper, Goebel 

 and others, and not upon any detailed investigation. The 

 present work has been carried out with the intention of 

 showing to what extent these generalizations in regard to 

 the vegetative reproduction from stem and leaf are true, and 

 also to throw some light on the physiology of regeneration. 



Before proceeding with the results of my own investi- 

 gations, brief mention will be made of some of the observations 

 previously recorded. 



i Jahrb. f. w. Bot. 16 : 367. 1885. 

 2 Flora, Erg.-Bd. 350—384. 1894. 



