List of the Chlorophyceæ^ Phæophyceæ and 



Rhodophyceæ found at the islands together 



with addenda and corrections. 



Chlorophyceæ. 



1. Enteromorpha flexuosa (Wulf.) J. Ag. 



2. — chætomorphoides Børgs. 



3. — lingulata J. Ag. 



4. — plumosa Kütz. 



5. — clathrata (Roth) Greville. 



6. Ulva Lactuca L. 



7. — fasciata Delile. 



8. Blastophysa rhizopus Rke. 



Besides the plant I previously found growing in Nemalion 

 Schrammt I have now found it, once more, rather abundantly in 

 Dictyota indica^ where it occurred in the epidermal cell-layer to- 

 gether with Phæophila Floridearum and Endoderma. 



Seen from above the cells are oval to oblong, but still many 

 of them are of a very irregular shape (Fig. 395 a). The cells contain 

 a great number af roundish or polygonal chromatophores, a pyre- 

 noid being present in the middle of some of those. The cells are 

 about 100 (1 long and 50 fi broad. 



Sometimes the cells lie quite closely together, sometimes 

 with some distance between, being then connected with a shorter 

 or longer tube (comp. Fig. 395 a, b)\ this is about 8 — 10 fx thick. 



