THE 



BRITISH CHAEOPHYTA 



BY 



JAMES GROVES, F.L.S. 



AND 



GEORGE RUSSELL BULLOCK-WEBSTER 



'M.A., F.L.S. 



RECTOR OF ST. MICHAEL ROYAL, LONDON, AND HON. CANON 



OF ELY CATHEDRAL 



VOLUME I 

 NITELLEJE 



WITH INTRODUCTION, PLATES AND TEXT-FIGUEE6 



LONDON 

 PRINTED FOR THE RAY SOCIETY 



1920 



