FIG. 4 in Ericaria giacconei sp. nov. (Sargassaceae, Fucophyceae), the species to which the invalidly published Cystoseira hyblaea Giaccone should be referred

FIG. 4. — Ericaria giacconei sp. nov., holotype: CAT 2716: A, cross section showing a medulla formed by small rounded cells, a cortex made of roundish cells with thin walls and a meristoderm formed by a layer of rectangular cells twice longer than wide; B, mature receptacles terminal, with deciduous spinous appendages, conceptacles located at the base of spinous deciduous appendages; C, cross section showing a conceptacle with oogonia occupying the floor of the conceptacle and antheridia forming a ring above them; D, detail of antheridia on branched hairs. Scale bars: A, D, 50 µm; B, 0.5 cm; C, 100 µm.