PLATE IV. [PAGE 64.] 

 MABINE 



Fig 

 2. 

 3. 



4. 

 5. 

 6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 



15. 



16. 



17. 



18. 

 19. 



Dasya coccinea, piece of. 

 Dasya coccinea, portion with cap- 

 sule (ceramidium). 

 Dasya coccinea, portion of main 



filament. 



Dasya coccinea, section of filament. 

 Meldbesia polymorpha. 

 Melobesia polymorpha, portion 



with capsules (ceramidia). 

 Jania rubens. 

 Jania rubens. 

 Lithocystis AUmanni. 

 Ceramium nodosum. 

 Ceramium nodosum, filament. 

 Ceramium rubrum, filament. 

 Ceramium rubrum, tetraspore. 

 Ceramium rubrum, end of fila- 

 ment. 

 Ceramium rubrum, capsule (fa- 



veUa). < 



Fucus vesiculosus, receptacles of. 

 Fucus vesiculosus, capsules (con- 



ceptacles). 

 Fucus serratus, antheridial con- 



ceptacles. 

 Spore of Fucus vesiculosus. 



Fig. 



20. Antheridia of Fucus serratus. 



21. Plocamium eomWMW,sporophyll. 



22. Plocamium coccineum, with cap- 



sule (coccidium). 



23. Plocamium coccineum, portion of 



frond. 



24. Plocamium coccineum, tetraspore 



from sporophyll. 



25. Polysiphonia fastigiata, portion of. 



26. Polysiphonia fastigiata, filament 



with capsules (ceramidia). 



27. Polysiphonia fastigiata, portion of 



filament. 



28. Corallina officinalis. 



29. Corallina officinalis, portion of fil- 



ament. 



30. Corallina ojfficinalis, capsule (cera- 



midium). 



31. Enter omorpha compressa. 



32. Enteromorpha compressa, cells of 



frond. 



33. Hypnea purpurascens, capsule 



(coccidium). 



34. Hypnea purpurascens, spores. 



35. Hypnea purpurascens, filament. 



