Usneaceae usnea • usneaceous · · · Info · Definitions · Characters · · Usneaceae · · Text Latin · · Script 9 · · Length Definitions · · · (noun) fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria. Synonyms: family Usneaceae. · · Noun Definition 1 Characters · · U latin capital letter u U+0055 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 n latin small letter n U+006E s latin small letter s U+0073