FIGURE 6. A–D. Gelidium crinale. A in Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum

FIGURE 6. A–D. Gelidium crinale. A. Detail of the apical portion showing the prominent apical cell (arrow) (SP469067). Scale bar = 25 μm. B. Cross section of the middle region of the main branch, showing abundant rhizines between medulla and inner cortex (SP469061). Scale bar = 20 μm. C. Tetrasporangial branch (SP469061). Scale bar = 250 μm. D. Cross section of the tetrasporangial branch, showing tetrasporangia and presence of sterile margin (SP469061). Scale bar = 100 μm. E–J. Gelidium floridanum (SP469068). E. Detail of the apical portion showing the apical cell (arrow). Scale bar = 25 μm. F. Cross section of the middle region of the main branch showing rhizines in the medullary region. Scale bar = 20 μm. G. Tetrasporangial branch. Scale bar = 250 μm. H. Cross section of the tetrasporangial branch, showing sterile margin. Scale bar = 100 μm. I. Female gametophyte branches with cystocarps. Scale bar = 2 mm. J. Cross section of bilocular cystocarp showing carposporangia produced in both sides. Scale bar = 100 μm.