In between Stratiotes and Clethra, which ones was described as a genus in 1753?
Stratiotes Stratiotes is a genus of submerged aquatic plant commonly known as water soldiers, described as a genus by Linnaeus in 1753. Several specific names have been coined within the genus, but at present only one is recognized: "Stratiotes aloides". native to Europe and NW Asia.
Clio (gastropod) The genus Clio is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks, the sole genus belonging to the family Cliidae