Riccia
noun
Ric·cia
ˈrichēə
: a genus (the type of the family Ricciaceae) of floating liverwort resembling duckweed and characterized by a dichotomously branched thallus which may be floating, submerged, or rooted on damp soil
Word History
Etymology
New Latin, from P.F.Ricci 18th century Italian nobleman + New Latin -ia