SUBGENUS Elongatia Luer 1986
Characterized by the elongate, racemose inflorescence that is successively and simultaneously flowered and arises from the ramicaul with an annulus. The lateral sepals are connate into a synsepal and the base of the lip is broadly adnate to the short, thick, pedestal-like column foot which carries a elongate column with usually prominent wings.
SUBGENUS Elongatia SECTION Elongatae Luer 1986
Characterized by sessile leaves and a terminal inflorescence.
SUBGENUS Elongatia SECTION Petiolatae
Characterized by petiolate leaves and a lateral inflorescence
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