Compare Gomphonema coronatum
Gomphonema coronatum is longer, and proportionately more slender than G. acuminatum, with which it was for many years considered part of that species complex.
Gomphonema coronatum is more curved and broader near the headpole.
LM scalebar = 10 µm
Length Range
34-108 µm
34-108 µm
Width Range
8-13 µm
8-13 µm
Striae in 10 µm
8-12, approaching 15/10 µm at the footpole
8-12, approaching 15/10 µm at the footpole
Length Range
19-77 µm
19-77 µm
Width Range
7-12 µm
7-12 µm
Striae in 10 µm
9-12 at the center, 12-14 toward the footpole
9-12 at the center, 12-14 toward the footpole
Length Range
40-105 µm
40-105 µm
Width Range
7-11 µm
7-11 µm
Striae in 10 µm
13-15
13-15
