DESMIDIEi. 101 



Spirotoenia condensata, (Breb.) 



Ashley Brook ; Stapleton ; Bedminster. 



Staurastmm alternans, (Breb.) 



Bedminster; Hoi-field. 



Staurastrum asperum, (Breb.) 



Bedminster; Yate. 



Staurastrum brachiatum, (Balfs) 

 Barrow. 



Staurastrum cyrtocerum, (Breb.) 

 Stoke Bishop. 



Staurastrum controversum, (Breb.) 

 St. George's; Yate. 



Staurastrum dilatatum, (Ehr.) 



Stapleton ; Yate ; Kingsweston. 



Staurastrum dejectum, (Breb.) 



^angotsfield Common; Yate; Brislington. 



Staurastrum hirsutum, (Ehr.) 



Yate; Stapleton. 



Staurastrum margaritaceum, (Ehr.) 



"Wells; Aust; Glastonbury. 



Staurastrum paradoxum, (Meyen.) 



Leigh ; Avonmouth Gardens. 



Staurastrum sex-costatum, (Breb.) 



Yate; Leigh; Glastonbury. 



Staurastrum tetracerum, (Kiitz.) 

 Avonmouth; Yate, 



Tetnemorus granulatus, (Breb.) 



Hanham ; Kingsweston. 



Tetnemorus Brebissonii, (Menegh.) 



Durdham Down Reservoir. 



