Compare Achnanthes mauiensis
Compare
The striae of Achnanthes coarctata are more coarse and the valves are more robust than A. mauiensis.
LM scalebar = 10 µm
Length Range
22.4-27.1 µm
22.4-27.1 µm
Width Range
5-7.5 µm
5-7.5 µm
Striae in 10 µm
15-19 on both valves
15-19 on both valves
Achnanthes coarctata
Length Range
32-70 µm
32-70 µm
Width Range
9.4-15 µm
9.4-15 µm
Striae in 10 µm
11 on the raphe valve, 9-10 on the rapheless valve
11 on the raphe valve, 9-10 on the rapheless valve