⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-26608304, with some changes.

Ophioglossum nudicaule var. vulcanicum R.T. Clausen is a synonym of Ophioglossum nudicaule L. f.

This name is a synonym of Ophioglossum nudicaule L. f..

The record derives from Tropicos which reports it as a synonym (record 26608304) with original publication details: Mem. Torrey Bot. Club 19(2): 150, f. 31, 32 150 1938.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:174607-2.