Luisia Gaudich. in Freyc., Voy. Bot. (1826) 426, t. 37
Subfamily: Epidendroideae
Tribe: Vandeae
Subtribe: Aeridinae
Synonyms: Birchea Rich. , Mesoclastes Lindl. , Trichorhiza Lindl. ex Steud.
A genus of c. 30 species; c. 16 species in Malesia.
Distribution: Tropical Asia, Japan, Malesia, east to Samoa