GROUP Carolii
Characterized by the caespitose habit, short, unbranched, laterally compressed stems carrying thick, coriaceous, leaves and has a long, rat-tail-like, arching, nutant with basal long bracts and carrying many successively opening flowers.
References W3 Tropicos, Kew Monocot list , IPNI ; Icones Planetarum Tropicarum Plate 714 Hamer 1982; Icones Planetarum Tropicarum Plate 1018 Hamer 1984; Icones Planetarum Tropicarum Plate 1217 Hamer 1985; Icones Planetarum Tropicarum Plate 1320 Atwwod 1989; Icones Orchidacearum 1 Plate 027 Hagsater & Salazar 1990 see recognition section; Icones Orchidacearum 7 Plate 722 Hagsater and Sanchez 2004 see recognition section; Icones Orchidacearum 11 Plate 1164 Hagsater 2008 see recognition section; Icones Orchidacearum 13 Plate 1312 Hagsater & Santiago 2010 See recognition section; Icones Orchidacearum 13 Plate 1346 Hagsater & Dodson 2010 See Recognition section;