12 LAGEllHEIM, DESMIDIACEEN AUS BENGALEN ETC. 



Explicatio figurarum. 



Tab. I. 



a = cellula a f rönte visa; b =^ cellula a latere visa; c = cellula a 

 vertice visa; d= cellula a basi visa. 



Fig. 1. Micrasterias Mahabiileshivarensis HoBS. ^ sitrculi/era nox. var. 

 2. il/, ampitllacea Mask. (i bengalica nov. var. 



> 3. Euastrum Didelta Ralfs (i bengalicum nov. var.; e ^ lobus 



apicalis a vertice visus. 

 » 4. Cosmarium cuneatum Josh. 

 » 5. C. coliferum nov. spec. 



> 6. Xanthiduim indicum nov. spec. 



» 7. X. acanthophorum Nordst. [i bengalicum nov. var.; dispositio 

 scrobicularum. 



» 8. Pleurotcenium Kayei (Arch.) Rabenh.; apex semicellulae a ver- 

 tice visus. 



> 9. P. constrictum (Bail.) Lagerh. *' coroniferum nov. subspec. 



