GROUP Piperinum
Characterized by the monopodial, short, branching habit, the filiform petals and the entire, ecallose lip
References W3 Tropicos, Kew Monocot list , IPNI ; Icones Plantarum Tropicarum Plate 224 Hagsater 1989 See type description; Icones Plantarum Tropicarum Plate 481 Dodson 1989; Icones Orchidacearum 13 Plate 1360 Hagsater & Dodson 2010 See Recognition section; Icones Orchidacearum 18(1) plate 1831 Hagsater, Pfahl & Cisneros 2020 see recognition section; Icones Orchidacearum 18(1) plate 1842 Hagsater, Santiago and Medina 2020 see recognition section