⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35209241, with some changes.

Madotheca circinans W.E. Nicholson is a synonym of Porella setigera f. circinans (W.E. Nicholson) S. Hatt.

This name is a synonym of Porella setigera f. circinans (W.E. Nicholson) S. Hatt..

The record derives from Tropicos which reports it as a synonym (record 35209241) with original publication details: Symb. Sin. 5: 24 24 1930.