Light microscopy images of Langiella scourfieldii (Croft and George 1959, emend. Strullu-Derrien and Knoll)
(A) Cyanobacteria as part of a ground cover; dark areas represent plant remains. (B–I) Filaments are mainly uniseriate, sometimes slightly multiseriate (asterisks in B and H). Filaments densely packed and interlaced with one another (B). Short uniseriate trichome resembling hormogonia (C). Necridia visible on some of the filaments (arrow in C, D). A–H: from thin section SU.PB. 2023.0.1.2.8; I: from thin section SU.PB. 2023.0.1.2.9. Scale bars: 0.31mm (A), 20 μm (F, I), 14 μm (C, D, E, H), 18 μm (B, G).