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 inermeNewb. by John Strong Newberry in 1868. It was moved to the genus CabombaAubl. as Cabomba inermis(Newb.) Hollick by Arthur Hollick in 1899. Alternatively, it was placed in the genus PsilotitesMünster as Psilotites inermis(Newb.) Schimp. by Wilhelm Philippe Schimper in 1874. The fossils may also be interpreted as roots of the genus QuereuxiaKrysht., and may be assigned to the species Quereuxia angulata(NEWBERRY) Kryshtofovich.