Wardia, Harv. & Hook.
Wardia hygrometrica, Harv. & Hook.
Wardia is a monotypic genus of mosses in the subclass Dicranidae; it contains only the species Wardia hygrometrica, "an aquatic moss endemic to the Western Cape province of South Africa." Because it is an aquatic moss, it was first classified in the Fontinalaceae, but molecular studies have shown that it is more closely related to the Dicranaceae.