169 



Diatoma elongatum Ag. 



Diatoma hiemale Heib. 



Diatoma hiemale var. mesodon Grun. 



Diatoma tenue Ag'. 



Diatoma vulgare Bory. 



Diatoma vulgare var. lineare Gruii. 



Diploneis elliptica Cleve. 



Diploueis elliptica var. GKAXBIS Cleve. 



Diploneis elliptica var. LADOGEKSTS Grun. 



Diploneis elliptica var. minuta. 



Diploneis elliptica var minutissima. 



Diploneis elliptica var. oblongeUa (ovalis v. oblon.;, 



Diploneis eViptica var. ovalis (ovais). 



Diploneis hyalina Cleve. 



Diploueis INTERRUPTA Cleve. 



Diploneis INTERRUPTA var. FOSSILTS M. Per. 



Diploneis INTERRUPT A var. MAJOR M. Per. 



Diploneis ovalis Cleve. 



Diploneis ovalis var. elougata A. Sch. 



Diploneis ovalis var. oblougella Cleve. 



Diploneis puella CLeve. 



Encyonema caespitosum Ktz. 

 Encyonema gracile Eab. 

 Encyonema lunula Grun. 

 Encyonema paradoxum Ktz. 

 Encyonema prostratnm Ealfs. 

 Encyonema prostratnm var. major. 

 Encyonema turgidimi Grnn. 

 Encyonema veutricosnrn Grnn. 

 Encyonema ventricosnm var. rnmuta Grun. 

 Epitheroia argus Ktz. 

 Epithemia argus var. alpestris Grun. 

 Epitliemia argus var. longicornis Grun. 

 Epitheniia argus var. ocellata (ocellata). 

 Epithemia ASPEITIAXA Herib. 

 Epithemia ASPEITIANA var. DILATATA Herib. 

 Epithemia fistula Ralfs. 

 Epithemia cistula var. CRASSA Pant. 

 Epithemia TTyndmannii W. Sm. 

 Epithemia ocellata Ktz. 

 Epitheniia turgida Ktz. 



