228 Botany. 



Group 9. ProtococcoideaB. 



CHLAMYDOMONAS ehrenbergii (?), Gorosoh. Bickley, '00. 

 C. rheinhardi, Dangeard. Bickley, '00. 

 SPH/ERELLA lacustris, Wittr. (H.EMATOCOCCUS PLUVIALIS). Very 



common in gutters and ditches everywhere. 

 CHLOROGONIUM euchlorum, Ehrh. Bickley, '00. 

 PANDORINA morum, Bory. Bromley ; long pond, Eltham ; Hayes 



Common. 



GONIUM pectorale, Mull. Bickley and Keston, '01. 

 VOLVOX globator, Ehr. Fairly abundant, Bromley. 

 CHARACIUM acutum, A.Br. Bickley, '00. 

 C. ornithoeephalum, A.Br. Bickley, '00. 

 PLEUROCOCCUS vulgaris, Menegh. (PBOTOCOCCUS). Very common 



in damp places. 



PEDIASTRUM boryanum, Menegh. Keston, '94 (Feb.). 

 CCELASTRUM microporum, Nag. Keston, '94 (May). 

 SCENEDESMUS bijugatus, Kiitz (OBTUSUS). Bickley, etc. ; com, 

 S. quadrieauda, Breb. Keston, '01. 

 ANKISTRODESMUS faleatus, Ralfs. (RHAPHEDIUM POLYMORPHIC 



var. FALCATUM, Rab.). Keston, '85 (May). 

 NEPHROCYTIUM agardhianum, Nag. Keston, '00. 

 BOTRYOCOCCUS braunii, Kiitz. Keston, '83 (May). 

 PALMELLA hyalina, Breb. Bickley. 



SCHIZOCHLAMYS gelatinosa, A. Br. Common in ponds, Eltham, 

 TETRASPORA lubrica, Ag. Keston, '83 (May). 

 APIOCYSTIS brauniana. Nag. Keston, '83 (May). 

 BOTRYDINA vulgaris, Breb. Keston. 



Class V. HETEROKOIMT/E. 

 BOTRYDIUM granulatum, L. Ash. L.C.C. 

 OPHIOCYTIUM cochleare, (Eichw.), A. Br. Not common. Bickley, 



Keston, '00. 

 TRIBONEMA bombycinum, Derb. and Sol. (CONFERVA). Keston. 



Class VI. BACILLARIE/E (Diatoms). 



No recent records. The only published records relate to Shoreham 

 and Northfleet, published in the Journal of Botany, 1879. 



