FIGURES 16–21. U. conglutinata. 16–18 in Diversity and distribution of Udotea genus J.V. Lamouroux (Chlorophyta, Udoteaceae) in the Yucatan peninsula littoral, Mexico

FIGURES 16–21. U. conglutinata. 16–18) external morphology, 19) blade siphon showing the torulous apices, 20) detail of the supradichotomic constriction, 21) stipe lateral appendages. FIGURES 22–24. U. cyathiformis. 22) external morphology, 23) blade siphon apices, 24) lateral appendages of the stipe.