Acianthera violacea (A.Rich. & Galeotti) Pridgeon & Chase (2001: 246)

Gomez, Rodolfo Solano, 2015, A taxonomic synopsis of the Mexican species of Acianthera (Orchidaceae: Pleurothallidinae) including a new species, Phytotaxa 218 (1), pp. 39-60 : 52

19. Acianthera violacea (A.Rich. & Galeotti) Pridgeon & Chase (2001: 246) . Pleurothallis violacea Richard & Galeotti (1845: 16) . Humboltia violacea (A.Rich. & Galeotti) Kuntze (1891: 668) . Lectotype (according to Solano & Soto In Hágsater & Soto, 2003: 513):—Tabula 1, Fig. 2 published in the original description (W[12696]! drawing of the type at AMES[74855]!).

Pleurothallis amoena Richard & Galeotti (1845: 16) . Humboltia amoena (A.Rich. & Galeotti) Kuntze (1891: 667) . Type:— MEXICO. Cordillera [Hidalgo]: Real del Monte, 7,000 ft. June − October 1840, Galeotti 5228 (P[489152]! lectotype here designated [ Fig. 7 ], isolectotype W[21883]! drawing at AMES[74042]!).

Pleurothallis cochlearis Reichenbach (1852: 764) . Humboltia cochlearis (Rchb.f.) Kuntze (1891: 667) . Holotype:— MEXICO. Unknown locality, cultivated “Im Dresdener botanischen Garten [flowered in] 1844” (W!).

Pleurothallis rhynchoglossa Schlechter (1915: 91) . Type:— MEXICO. Veracruz: “Bei Zacuapan, flowered in cultivation March 1914 ”, Purpus s.n. (holotype B†; lectotype designed by Solano & Soto Arenas in Hágsater & Soto Arenas (2003: 513: Tab 6, fig. 8 − 15) published with the original description).

Distribution:— Mexico (Hidalgo, Veracruz, Oaxaca, Chiapas [ Fig. 6 ]), Guatemala, and El Salvador, reported in Honduras by Ossenbach et al. (2007).

Specimens:— MEXICO. Hidalgo: Real del Monte, 1840, Galeotti 522 8 ( P! W!). Veracruz: Valle de Cordoba , 10 March 1866, Bourgeau 2083, 2083 A ( P!) ; Xico, Nagel sub Oestlund 4775 ( AMES!). Oaxaca: San Miguel Metepec , 2,600 m, Suárez 556 ( AMO [photo]!). Chiapas: Ocosingo, Laguna Ocotalito, 950 m, 27 April 1989, Soto 5615 ( AMO!) ; Cacahoatán , 1,320 m, 4 April 2014, Damon s.n. ( ECOSUR!) .

Notes:— Pleurothallis amoena and P. violacea were simultaneously published by Richard & Galeottti (1845), but the description of P. amoena was listed first; since only recently Pleurothallis amoena was recognized as synonym for P. violacea (Hágsater & Soto Arenas 2003, Luer 2004), therefore the latter name has established priority as the species basyonym. Luer (2004) proposed that the specimen Galeotti 5228 is both holotype for P. violacea and P. amoena ; however, this proposal was incorrect. Because the description of P. violacea includes an illustration, herein it was chosen as its lectotype, leaving the Galeotti’s specimen as lectotype for P. amoena .

Figures

FIGURE 2. Acianthera pollardiana, photo by G. Salazar, based on Sandoval & Sandoval 1248.

FIGURE 6. Map showing the known Mexican localities for Acianthera sotoana, A. testifolia, A. tikalensis, A. unguicallosa and A. violacea.

FIGURE 7. The specimen Galeotti 5228 deposited at P(489152) and designated here as lectotype of Pleurothallis amoena A.Rich. & Galeotti. Reproduction with permission of the Muséum National d’Histoire Naturelle, Paris.