| The authors describe 16 seaweeds not previously collected from the French coasts of the Channel: the Chlorophyceae <i>Halochlorococcum marinum, Pringsheimiella scutata, Stromatella monostromatica, S. papillosa, Ulvella setchellii</i>, the Phaeophyceae <i>Chilionema reptans, Myrionema corunnae</i>, the Rhodophyceae <i>Acrochaetium nemalionis, Chromastrum secundatum f. virgulatum, Erythrocladia grisea, E. irregularis</i> f. <i>irregularis</i> and f. <i>subintegra, E. violacea, Erythrotrichia boryana, Fosliella faranosa, Pneophyllum rosanoffii</i>. Ecological data are added to the morphological and anatomical descriptions. |
