INDEX. 



A. 



ACHNANTHES Bovy 



ex His ? Klitz. 



minutissinia Kiite. 

 Agardliia Gray 

 Anabatna Bo7'y 



cotistricta Hass. 

 Jlos-aquce Bory 



impalpehralis ? Bory 



lichenifoi^mis ? Bory 



? spiralis Thomp. - 

 Anacystis Menegh. 



furfuracea Menegh, 

 Anhaltia SchicaJil 

 Aphanizomenon Morren 



incur vum Morren 

 Aplo>'ema Hass. 

 Apona Adans - 

 Arthrodesmus Ehr. - 



acutus Eh7\ 



convergens Elir. 



Incus Hass. 



octocornis Ehr. 



quadricaudatus Ehr, 

 Arthronema Hass. 



cirrliosum Hass. - 

 AuLACocYSTis Hass. - 



pellucida Hass. 



B. 



Bacillaria Ehr. 

 communis Bory 



