Achnanthes delicatula var. robusta Hust.

Achnanthes delicatula var. robusta Hust.

Achnanthes delicatula var. robusta Hust.

is basionym for Planothidium robustum (Hust.) Lange-Bert. in Iconogr. Diatomol. 6: 279. 19991

1. (Basionym:) fig. 1-2