PL 197. 





3?* 



o^8B^ S^Og 



O _ Oro ^,ro .5o nqorj 



r/ 



Porphyriopsis coccinea 



Erythrocladia irregularis 



Erythrocladia subintegra 



Thorea ramosissima 



IX. FLORIDE^tE (Algues rouges] 1. Bangiacese . :?. Thoreaceae 



