PLATE XII. 



Nitella mucronata Miquel. 

 FIG. 



1. Plant, natural size, from R. Ouse, Bedford. 



2. Apex of branchlet showing 2- and 3-celled dactyls. 



x c. 20. 

 3-5. Apices of dactyls, x c. 30. 



6. Fruiting branchlet. x c. 20. 



7. Oogonium. x c. 40. 



8. Oospore. x c. 40. 



