Figure 4 in New record of Halymenia malaysiana (Halymeniaceae, Rhodophyta) from Viet Nam, and its genetic diversity in the western Pacific

Figure 4: Halymenia malaysiana from Viet Nam (CDNT-H15) showing cystocarp development. (A) Auxiliary cell and ampullar filaments (white arrowheads). (B) Young cystocarp showing auxiliary cell and medullary filaments (black arrowheads). (C–E) Development of other young cystocarps showing a basal fusion cell, gonimoblast initial (black arrow) and gonimolobe enveloped by elongated ampullar filaments and secondary medullary filaments. (F) Mature cystocarp showing gonimoblast initial (gi, black arrow), basal fusion cell (fc), and gonimolobe (g). Scale bars = 20 µm; aux, auxiliary cell; g, gonimolobe; gi, gonimoblast initial; fc, fusion cell.