Introduction. General features of the flora. Systematic part. I. Green algae: 1. Order ulotrichales. 2. Order cladophorales. 3. Order siphonocladales. 4. Order siphonales. II. Brown algae: 1. Order ectocarpales. 2. Order chordariales. 3. Order dictyotales. 4. Order desmarestiales. 5. Order dictyosiphonales. 6. Order laminariales. 7. Order fucales. III. Red algae: 1. Order goniotrichales. 2. Order Bangiales. 3. Order Nemalionales. 4. Order gelidiales. 5. Order ...