Compare Brachysira subtilis
Compare
Brachysira procera, B. ocalanensis and B. styriaca have unprotracted apices, but each of these taxa have lanceolate valves that are slightly wider. Brachysira procera and B. styriaca have a lower lower stria density.
LM scalebar = 10 µm
Length Range
19-30 µm
19-30 µm
Width Range
3-4 µm
3-4 µm
Striae in 10 µm
32-38
32-38
Brachysira ocalanensis
Length Range
19.0-38.6 µm
19.0-38.6 µm
Width Range
4.0-5.7 µm
4.0-5.7 µm
Striae in 10 µm
32-34, more closely spaced towards the apices
32-34, more closely spaced towards the apices
Also compare to
Brachysira procera
BioData Reference
Lange-Bertalot and Moser 1994 Pl 7 Fig 8-26