454 Addenda 



that Centrosphtera Borzi must also be placed as a synonym of Chlorochytrium. 

 It is hoped that the results of this investigation will shortly be published. 



********** 



Little addition has been made to our knowledge of the Ulotrichales 

 during the past two years. Printz has described (I.e. 1916) two new genera 

 from the Siberian side of the Ural Mountains : Epibolium Printz, which is 

 allied to Chloroclonium, and Lochmiurn Printz, which stands near to Micro- 

 thamnion. Miss Acton has also described a new species of Gomontia 

 (G. sEgagropilte) inhabiting the floating balls of Cladophora (^Egagropila) 

 holsatica. The investigation of this Alga has shown that Tellamia Batters 

 should most probably be regarded as synonymous with Endoderma Lagerh. 

 and that Foreliella Chodat is really synonymous with Gomontia Born. & Flah. 

 The present author is therefore in error in following Wille, and placing 

 Foreliella perforans Chodat as a species of Tellamia (vide p. 305), since 

 this Alga should be placed as Gomontia perforans (Chodat) Acton (in New 

 Phytologist, xv, 1916). 



