From the Greek, Elle, and anthos, flower, dedicated to a legendary Helle or Helena. (RD).
WCM Protologue Reference:
C.Presl, Reliq. Haenk. 1: 97 (1827)
Epiphytic or terrestrial, caespitose herbs. Roots fleshy. Stems simple or branched. Leaves distichous, plicate or occasionally conduplicate. Inflorescence terminal, racemose or subcapitate, spiral or distichous, the floral bracts often conspicuous in size or colouring. Flowers concave, usually brightly coloured. Sepals and petals free, similar. Labellum enfolding column, basally saccate, with two ovoid or oblong calli, labellum often forming a partition or barrier in front of calli. Column straight, winged, lacking a foot; anther incumbent or often erect, pollinia eight, ovoid, with removable viscidium; stigma entire. Ovary glabrous to hispid. Capsule cylindrical to ellipsoid. (RD).