⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Hypnum aduncum in version 1.1 of The Plant List.
This name is a synonym of Drepanocladus aduncus f. polycarpon .
The record derives from Tropicos which reports it as a synonym (record 35101786
) with original publication details: Bryol. Eur. 6: 112. 605 (fasc. 57--61. Mon. 36 24) 112 1854.