FIGURE 3 in Molecular assessment of flat Cystocloniaceae (Gigartinales, Rhodophyta) from Brazil with reinstatement of Calliblepharis jolyi and a new record of C. saidana for the Atlantic Ocean

FIGURE 3. Reproductive morphology of Calliblepharis jolyi. A. Surface view of a male thallus with scattered spermatangia. B. Transverse section of a spermatangial branch showing spermatia in chains, cut off from elongated spermatangial primordial cells (arrows). C. Ultimate branchlets with marginal cystocarps. D. Gonimoblast initial (gi) cut off inwardly from the auxiliary cell (a). E. Transverse section of a young cystocarp showing the basal inner nutritive tissue (nt), large columnar cells in the center of carposporophyte (c) and branched gonimoblast filaments (gf) bearing chains of carposporangia (ca). F. Transverse sterile filaments joined with the pericarp. G. Chains of ovoid carposporangia. H. Nonostiolate, mature cystocarp. I. Surface view of tetrasporangia scattered over the upper branchlets. J. Transverse section of tetrasporangial branch. K. Detail of a mature tetrasporangium zonately divided.