Fig. 5 in Molecular phylogenies support taxonomic revision of three species of Laurencia (Rhodomelaceae, Rhodophyta), with the description of a new genus

Fig. 5. Osmundea caspica (A.D.Zinova & Zaberzhinskaya). Sangachal Bay, Azerbaijan, September 2003, dredged. A. Habit of herbarium voucher specimen with epiphytic acrochaetioid red algae. B. Outer cortical cells in surface view, elongated along the thallus axis, lacking secondary pit connections. C. Longitudinal section through outer cortex (scale bar as in B). D. Part of mature spermatangial receptacle, showing spermatangial flaments each terminating in a large rounded sterile cell. E. Spermatangial flament bearing mature spermatia and terminating in a rounded sterile cell.