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Eventually, the patches frequently become confluent, and much darker 

 in colour. The spores are large compared with the size of the plant, 

 and are not uncommon ; when these are abundant the plant forms a 

 beautiful object for the microscope. 



MYRIONEMA STRANGULANS. 



EXPLANATION OF DISSECTIONS, &c. 



Fig. 1. — Mi/rionema strangulans, on Enteromorpha Linkiana, natural size. 

 2. — Same. 

 3.' — Section of same. 

 4. — Filaments and spores. All magnified. 



