Cabomba inermis

Cabomba inermis is a controversial fossil species of aquatic plant in the family Cabombaceae. The fossil has also been attributed to several other genera.

Description

The leaves are dissected. The fossil may also be interpreted as roots.

Taxonomy

It was first published as Psilotum inerme by John Strong Newberry in 1868. It was moved to the genus Cabomba as Cabomba inermis by Arthur Hollick in 1899. Alternatively, it was placed in the genus Psilotites as Psilotites inermis by Wilhelm Philippe Schimper in 1874. The fossils may also be interpreted as roots of the genus Quereuxia, and may be assigned to the species Quereuxia angulata.

Etymology

The specific epithet inermis means unarmed.