Capilliphycus tropicalis T.A. Caires, Sant’Anna & J.M. Nunes

COMMENT: Our material fits the original description of this species in Caires et al. (2018b) and clusters together with Capilliphycus tropicalis in the 16S rRNA gene sequence phylogenetic tree.

SPECIES FEATURES: Thallus green and entangled, mat-like. Filaments straight, 11.8–16.8 µm in diameter. Sheath hyaline. Cells light to dark green. Cells discoid, wider than long, 8.4–12 µm wide, 1–2.1 µm long. This is the first report of this species outside of Brazil.

MATERIALS ANALYSED: BLCC-M 106 (US 227681).