Taxon: Hydrogonium inflexum

Plate 125. 1–2, Hydrogonium gracilentum. 1, leaf (× 45). 2, apical leaf cells (× 325). 3–4, Hydrogonium inflexum. 3, leaf (× 45). 4, apical leaf cells (× 325). 5–9, Hydrogonium javanicum. 5, 6, leaves (× 45). 7, 8, apical leaf cells (× 325). 9, median leaf cells (× 325).