FIGURES 20–26 in Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea

FIGURES 20–26. Mediterranean herbarium specimens of Parviphycus albertanoae, previously misidentified as Gelidiella ramellosa. Figs 20–23. Herbarium specimens (MNHN! PC-PC0167206) from Kerkennah, Tunisia. Fig. 20. Herbarium sheet. Scale bar = 2.5 cm. Fig. 21. Apex of an upright branch of a specimen showing the distichous pattern of division of the subapical cells. Scale bar = 30 μm. Fig. 22. Transverse section of a compressed upright branch; five cells (axial and periaxials) are aligned along the major axis in an evident row. Scale bar = 27 μm. Fig. 23. Tetrasporangial sorus with tetrasporangia regularly arranged in transverse parallel rows (four per row). Scale bar = 180 μm. Figs 24–26. Herbarium specimens from the Cheradi Islands (CAT 1270). Fig. 24. Habit. Scale bar = 3 mm. Fig. 25. Transverse section of an erect axis. Scale bar = 17 μm. Fig. 26. Detail of a tetrasporangial sorus. Scale bar = 50 μm.