FIGURES 32–37 in Nitella singaporensis (Charophyceae, Charales): new species and implications for the taxonomy of the genus Nitella

FIGURES 32–37. Oospores of Nitella singaporensis (isotype: LE): 32—general habit, 33–37—surface ornamentation of fossa and ribs at different magnification. Scale: 32—40 μm, 33, 34—10 μm, 35—8 μm, 36—4 μm, 37—1 μm. All photos by R. Romanov.