⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35150367, with some changes.

Macromitrium platyphyllaceum Müll. Hal. is a synonym of Macromitrium involutifolium subsp. ptychomitrioides (Besch.) Vitt & H.P. Ramsay

The record derives from Tropicos which reports it as a synonym (record 35150367) with original publication details: Hedwigia 37: 154 154 1898.