THE CLASSIFICATION OF PLANTS 



2135 



In 1904 Oltmanns published his large work on the Algae under 

 the title " Morphologic und Biologic der Algen". This work, which 

 was revised in 1922, was not primarily systematic but he gave an arrange- 

 ment of the Algae which has had considerable influence. It is reproduced 

 below : 



2M' 



