Spiridens muelleri
Spiridens muelleri Hampe

Spiridens muelleri is a moss species native to Lord Howe Island and is the only known member of the genus Spiridens in Australia.
Description
Spiridens muelleri, described by Hampe in 1874, belongs to the family Spiridentaceae. It is found exclusively on Lord Howe Island and is the sole representative of the genus Spiridens in the Australian region.