This name is a synonym.
* Specklinia floribunda Lindl., Gen. Sp. Orchid. Pl.: 9 (1830).
Specklinia ophioglossoides Mutel, Mém. Soc. Roy. Centr. Agric. Dépt. N. 1835-1836: 84 (1837), nom. superfl.
Pleurothallis floribunda (Lindl.) Lindl., Edwards's Bot. Reg. 28(Misc.): 73 (1842), nom. illeg.
Pleurothallis sieberi Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 20: 34 (1986).
Acianthera sieberi (Luer) Pridgeon & M.W.Chase, Lindleyana 16: 246 (2001).
Arthrosia floribunda (Lindl.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 105: 248 (2006).
* Basionym/Replaced Synonym