FIGURES 11−16 in Hypnea platyclada, a new species of red alga (Rhodophyta, Cystocloniaceae) from Brazil

FIGURES 11−16: Reproductive features of Hypnea platyclada sp. nov. Fig. 11: Cross section of a branch containing tetrasporangia unilaterally arranged. Fig. 12: Details of tetrasporangia produced in the cortical region of the branch. Fig. 13: Cross section of a cystocarp. Fig. 14: Details of carposporangia at apex of columnar gonimoblast. Fig. 15: Cross section of a branch containing spermatangial sori arranged on one side. Fig 16: Details of spermatangia in chains. Scale bars: Fig. 11 = 10 µm; Fig. 12 = 50 µm; Fig. 13 = 100 µm; Fig. 14 = 50 µm; Fig. 15 = 20 µm; Fig. 16 = 10 µm.