Achnanthes arcus Hust.

Achnanthes arcus Hust.

Achnanthes arcus Hust. in Int. Rev. Gesamten Hydrobiol. Hydrogr. 42(1-3): 38, fig. 44-48. Jan 1942

is basionym for Achnanthidium arcus (Hust.) Lange-Bert. in Iconogr. Diatomol. 6: 270. 19991

1. (Basionym:) fig. 44-48