98 DESMIDIE-E. 



Closterium moniliferum, (Borg.) 



Stapleton; Bedminster ; Horfield; Over. 



Closterium rostratum, (Ehr.) 



Barrow Reservoir; Durdhara Down, near tlie 

 Blackhoy Quarry; Westbury; Stapleton Quarry. 



Closterium striolatum, (Ehr. ) 



Thombury ; Stapleton Quarry. 



Closterium setaceum, (Ehr.) 



Ashton Park ; Saltford. 



Cosmarium attenuatum, (Breb.) 

 Lamplighters. 



Cosmarium bioculatum, (Breb.) 



"Wickwar; Bedminster. 



Cosmarium Botrytis, (Bory.) 



Stapleton ; Charfield. 



Cosmarium Bromeii, (Thwaites) 



Ditches at Shirehampton. 



Cosmarium curtum, (Breb.) 

 Lamplighters. 



Cosmarium cucurbita, (Breb.) 



Meadows at Bedminster ; Ashton. 



Cosmarium cylindricum, (Balfs) 



Side of well, near second bridge at Stapleton ; 

 Over. 



Cosmarium commissurale, (Breb.) 



Under north side of Dundry Hill. 



Cosmarium cucumis, (Corda ) 



Stapleton ; Brislington. 



Cosmarium crenatum, (Ralfs) 



Bedminster; Tate; Eishponds; Stapleton Qaarry. 



Cosmarium granatum, (Breb.) 

 Bedminster. 



