Fig. 3From: The Japanese alga Polysiphonia morrowii (Rhodomelaceae, Rhodophyta) on the South Atlantic Ocean: first report of an invasive macroalga inhabiting oyster reefs Polysiphonia morrowii. Vegetative morphology. a Trichoblast presenting several furcations (arrowheads); b conspicuous scar cell (arrowhead); c rhizoid in open connection with the pericentral cell; d detail of highly digitated attachment disk of rhizoids; e sharply pointed shape of ultimate branches; f detail of sharply pointed branches; g, h endogenous axillary branches (arrowheads). Scale bars 50 μmBack to article page