FIGURE 1. Brasilonema roberti-lamii. A in Morphological and Molecular Characterization of Brasilonema roberti-lamii (Cyanophyceae, Nostocales, Scytonemataceae), from Central Mexico

FIGURE 1. Brasilonema roberti-lamii. A. According to Bourrelly and Manguin (1952). B–L. Brasilonema roberti-lamii from Los Manantiales. B–D. Habit. E. Detail of filament organization in fascicles. F–H. typical "C" or "J" shape of young trichomes with heterocytes. I, K, L. Different stages of hormogonia development. Arrow: proheterocyte. J. Parallel organization of filaments. Scale bars: C = 0.5 mm, D = 50 µm, E–J, L = 20 µm, K = 7 µm.