Achnanthes impexiformis Lange-Bert.

Achnanthes impexiformis Lange-Bert.

Achnanthes impexiformis Lange-Bert. in Achnanthes. Biblioth. Diatomol., 18: 8, 69, pl. 74, fig. 7-9; pl. 75, fig. 2-4. 1989

is basionym for Nupela impexiformis Lange-Bert. in Iconogr. Diatomol. 6: 274. 19991

1. (Basionym:) fig. 74: 7-9; 75: 2-4