Compare Gomphonema montezumense
Compare
Gomphonema carolinense is larger, heteropolar and more clavate-elliptic.
Members of the Gomphonema parvulum-complex has narrower valves with more clavate-elliptic forms (e.g. G. parvulum var. lagenula Frenguelli) and parallel to only slightly radiate striae.
LM scalebar = 10 µm
Length Range
12.2-19.8 µm
12.2-19.8 µm
Width Range
8.9-11.9 µm
8.9-11.9 µm
Striae in 10 µm
11.2-14.5
11.2-14.5