Poly ides 



Poly phacuni 



Polypbysa 



Porpbyra 



Protococcus 



Protbneraa 



Ptilota 



Rhodoinola 



Rivularia 



Rytiph loea 



Sargassum 



Schizoncma 



Scy thy me nia 



Scytonenia 



Scy tosiplion. 



Solcnia 



Sphaceiaria 



79-211 



39- ;S 



89 - 208 



27 - 4 a 



aa- 3a 



65- 188 

 80 - 240 



70- 



56 



33- 



25- 



66- 1 88 



36 



- X 7 r 



62 - 1 80 



58- 171 

 93 - 263 

 4i- 77 



Corrigenda & Addenda. 



Pag. 2. Post Frustuliam minor em inscr. 



3* Frustuiia elliptica, fiu^iulis eliipticis in ge- 



lalinn nidtii ;: u tibus. 

 Ad Soleniam clnihratam dcstructara in frcto 



Pag. 7. In Fragilaria striatula , add. synonymon: 

 Frag, striutula , L\ ngb. t. 63. &C locus: li- 

 tora minis Gcrinanici. 



p. 10. 1. 5. Vocab. antea e.xclndcnd. 

 p . n. add. 



10. Schizonema? jnicans, filis simplicinscnlis 

 abbreviaiis i u)crii'il.)iL> ntttnnaUs e i'ruslu- 

 lis t'ineari-subulatis 

 ia micans, Lb. t, 25. 



