FIGURE 5 in Two new green algae, Rhizoclonium fractum sp. nov. and R. umbraticum sp. nov., from tropical and subtropical brackish waters of Japan

FIGURE 5. Field-collected specimens of Cladophoraceae sp. 1 (Rhizoclonium fractum). (A, B) Field-collected specimens. (C–E) Range of morphological types in field-collected specimens. (E) Arrowhead pointing to rhizoidal structure. (F, G) Cells of field-collected materials. (H, I) Spindle- or band-shaped chloroplasts. Arrowheads indicate pyrenoids. (J, K) Autofluorescence of chloroplasts. (L) Cells stained with DAPI, showing nuclei. (M) Cells stained with Lugol's iodine, showing the pyrenoids. (N) Polypyramidal pyrenoid observed by transmission electron microscopy. Scale bar = 5 mm (A, B,); Scale bars = 20 μm (C–F, L, M); Scale bar = 10 μm (G–K).; Scale bar = 0.5 μm (N).