128 HOFMEISTER ON THE HIGHER CRYPTOGAMIA. 



"tail," an unfortunate expression, inasmuch as the filiform 

 portions take the lead when the spermatozoon is in motion. 

 Thuret's figures of the spermatozoa of the Marchantieae are 

 very accurate ('Ann. d. Sc. Nat.,' hi ser., xvi, pi. xii ; 

 Marchantia, Fegatella, and Targionia). 



