PLATE XVII. 



Tolypella intricata Leonhardi. 

 no. 

 1. Plant, half natural size, from Egham, Surrey. 

 2-5. Apices of dactyls, x c. 20. 



6. Fruiting branchlet. x c. 20. 



7. Oogonium, x c. 40. 



8. Apex of oogonium with coronula. x c. 80. 



9. Oospore, x c. 40. 



