Compare Didymosphenia geminata
Compare
Although D. geminata is large and distinct in shape, some inexperienced users confuse it with species of Gomphonema and Gomphoneis, which may grow attached to surfaces by stalks. Didymosphenia clavaherculis is less capitate than D. geminata and has a more linear and narrow footpole.
LM scalebar = 10 µm
Length Range
65-161 µm
65-161 µm
Width Range
36-41 µm
36-41 µm
Striae in 10 µm
7-9 in the center valve
7-9 in the center valve