ALEXANDER BRA UN. 405 



and Isoetes may be essentially complete. But his prolonged 

 studies of Chara, which began forty years ago, and the com- 

 pletion of which would have crowned his career, have prob- 

 ably not been finished, or brought into such form that the 

 results may be fully secured. 



His influence as a teacher is said to have been great ; as 

 an investigator he stood in the first rank among the botanists 

 of our time ; as a man, his simple, earnest, and transparently 

 truthful character won the admiration and love of all who 

 knew him. 



