21. 24. 
DI =D 
Lıth.W. Schlachter, Stockholm. 
1_11 Conferva Wittrockii n.sp., 12-27 C.stagnorum Kütz., 28_35 C. pachyderma n.sp 
36-40 C. bombycina Ag ** minor, 41-43 C. bombycina Ag. x genuina 
