Pleurothallis bivalvis Lindl., Orchid. Linden.: 2 (1846). Distribution: S. Mexico, Costa Rica to Trinidad and Bolivia ________________________________________ Homotypic Synonyms: Humboltia bivalvis (Lindl.) Kuntze, Revis. Gen. Pl. 2: 667 (1891). Acronia bivalvis (Lindl.) Luer, Monogr. Syst. Bot. Missouri Bot. Gard. 103: 93 (2005). Zosterophyllanthos bivalvis (Lindl.) Szlach., Ill. Field Guide Orchids Yotoco Forest Reserve: 276 (2011). ________________________________________ Heterotypic Synonyms: Pleurothallis cardium Rchb.f., Bonplandia (Hannover) 2: 26 (1854). Pleurothallis lansbergiana Regel, Gartenflora 6: t. 193, f. d (1856). Pleurothallis lansbergii Regel, Index Seminum (LE, Petropolitanus) 1856: 17 (1856). Pleurothallis cardiantha Rchb.f., Linnaea 41: 15 (1876). Humboltia cardium (Rchb.f.) Kuntze, Revis. Gen. Pl. 2: 667 (1891). Pleurothallis stenocardium Schltr., Notizbl. Königl. Bot. Gart. Berlin 6: 123 (1914). Pleurothallis pichinchae Schltr., Repert. Spec. Nov. Regni Veg. 14: 132 (1915), nom. illeg. Pleurothallis chanchamayoensis Schltr., Repert. Spec. Nov. Regni Veg. Beih. 9: 73 (1921). Pleurothallis ignivomi Schltr., Repert. Spec. Nov. Regni Veg. Beih. 8: 129 (1921). Pleurothallis sigsigensis Schltr., Repert. Spec. Nov. Regni Veg. Beih. 8: 63 (1921). Pleurothallis fuscata Braid, Bull. Misc. Inform. Kew 1924: 200 (1924). Pleurothallis phaeantha Schltr., Repert. Spec. Nov. Regni Veg. Beih. 27: 52 (1924). Pleurothallis angusta Ames & C.Schweinf., Schedul. Orchid. 8: 23 (1925). Pleurothallis archidiaconi Ames, Schedul. Orchid. 9: 29 (1925). Pleurothallis antonensis L.O.Williams, Ann. Missouri Bot. Gard. 29: 341 (1942). Pleurothallis harlingii Garay, Svensk Bot. Tidskr. 47: 208 (1953). Zosterophyllanthos ignivomi (Schltr.) Szlach. & Marg., Polish Bot. J. 46: 119 (2001). Pleurothallis lilianiae Luer, Orquideologia 22: 264 (2003). Zosterophyllanthos lilianiae (Luer) Szlach. & Kulak, Richardiana 6: 134 (2006). Zosterophyllanthos archidiaconi (Ames) Veyret & Szlach., Orchids French Guiana: 205 (2012). Acronia archidiaconi (Ames) Carnevali & G.A.Romero, Smithsonian Contr. Bot. 100: 117 (2014). Link to files @ www.epidendra.org Link to some of the files @ SOF ( there are 100 + ) https://orchid.unibas.ch/index.php/en/?option=com_content&view=article&id=3&SearchResultID=6985/Pleurothallis/bivalvis/Lindley_John&setLang=en-GB Other Links : http://www.biodiversitylibrary.org/name/Pleurothallis_bivalvis