Compare Stephanodiscus hantzschii
Compare
Stephanodicsus hantzschii f. tenuis has higher areola density, wavy fascicles and lightly silicified valves. Stephanodiscus binderanus is smaller in diameter with higher fascicle and areola densities. Stephanodiscus parvus is smaller in diameter, has a higher fascicle density and central fultoportula is present. Cyclostephanos invisitatus has a higher fascicle density and branching costae.
LM scalebar = 10 µm
Diameter
11.8-20.3 µm
11.8-20.3 µm
Striae in 10 µm
6-9 fascicles based on circumferential count
6-9 fascicles based on circumferential count
Cyclostephanos invisitatus
Diameter
7.8-15.1 µm
7.8-15.1 µm
Striae in 10 µm
15-16 based on chord count, 12-15 based on circumferential density
15-16 based on chord count, 12-15 based on circumferential density
Stephanodiscus hantzschii fo. tenuis
Diameter
15.5-19 µm
15.5-19 µm
Striae in 10 µm
5.7-7.5 based on circumferential density
5.7-7.5 based on circumferential density
Stephanodiscus binderanus
Diameter
6.3-11.8 µm
6.3-11.8 µm
Width Range
2.6-4.7 µm
2.6-4.7 µm
Striae in 10 µm
10 to 15 based on circumferential density
10 to 15 based on circumferential density
