Two new species of Pleurothallis (Pleurothallidinae) subsection Macrophyllae-Fasciculatae from The Central Andes of Colombia


  • Mario Alexei Sierra-Ariza Grupo de Investigación Schultes, Fundación Ecotonos, Valle del Cauca, Cali, Colombia



distribution, ecology, Ibagué, Orchidaceae, Tolima, Villahermosa


Two new species of Pleurothallis subsection Macrophyllae-Fasciculatae are described and illustrated. Both species were found in the central Andes of Colombia in the department of Tolima. The two species are compared and discussed with Pleurothallis applanata, Pleurothallis ariana-dayanae, Pleurothallis paquishae, and Pleurothallis scabrilinguis, which are the morphologically closest species. The two new species differ from their congeners mainly by lip morphology. Pleurothallis franciana is distinguished by having an oblong-lanceolate, acute, vesiculous lip with an obovate glenion, and Pleurothallis petroana is distinguished by the ovate-lanceolate, verrucose-papillose, slightly pilose lip, with a spathulate glenion.


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Ackerman, J. D. & collaborators. (2014). Orchid flora of the Greater Antilles. New York, EE.UU.: Botanical Garden Press. Jiménez, M., Ocupa, L. & Vélez-Abarca, L. (2021). A new species of Pleurothallis (Orchidaceae: Pleurothallidinae) from Zamora in the Province of Zamora Chinchipe, Ecuador. Phytotaxa, 518(1), 079–086. doi:

Karremans, A. P & Vieira-Uribe, S. (2020). Pleurothallids Neotropical Jewels Volume I. Quito, Ecuador: Imprenta Mar iscal. 320 pp.

Karremans, A. P., Rojas-Alvarado, G., Bezerra-Silva, L. E., Flores-Rojas, J., Murillo-Murillo, J. M., Romero-Ceciliano, M. & Segura-Bermúdez, O. A. (2021). Nomenclatural notes in the Pleurothallidinae (Orchidaceae): miscellaneous part II. Phytotaxa, 496 (2), 134–146. doi:

Lindley, J. (1859). Folia Orchidacea. An enumeration of the known species of orchids. London, England: J. Matthews. 9–12 pp.

Luer, C. A. (1986). Icones Pleurothallidinarum III: Systematics of Pleurothallis. Monographs in Systematic Botany from the Missouri Botanical Garden, 20, 1–109.

Luer, C. A. (1988). A revision of some sections of subgenus Pleurothallis. Lindleyana, 3(3), 133–149.

Luer, C. A. (2005). Icones Pleurothallidinarum XXVII: Dryadella and Acronia section Macrophyllae-Fasciculatae: ad denda to Acianthera, Andinia, Dracula, Dresslerella, Lepanthes, and Masdevallia; new taxa, validation of taxa, errata. Monographs in Systematic Botany from the Missouri Botanical Garden, 103, 1–311.

Moreno, J. S., Sierra-Ariza, M. A., Hoyos, D. & Galindo-Tarazona, R. (2022). Pleurothallis mark-wilsonii a new species from the subsection Acroniae series Amphigyae from the Western Andes of Colombia. Phytotaxa, 568(3), 283–288. doi:

Pridgeon, A. M., Solano, R. & Chase, M. W. (2001). Phylogenetic relationships in Pleurothallidinae (Orchidaceae): Com bined evidence from nuclear and plastid DNA sequences. American Journal of Botany, 88(12), 2286–2308.

Pupulin, F. & collaborators. (2020). Vanishing Beauty: Native Costa Rican Orchids. Volume 2: Lacaena-Pteroglossa. Oberreifenberg, Germany: Koeltz Botanical Books.

Pupulin, F., Aguilar, J., Belfort-Oconitrillo, N., Díaz-Morales, M. & Bogarín, D. (2021). Florae Costaricensis subtribui Pleurothallidinis (Orchidaceae) Prodromus II. Systematics of the Pleurothallis cardiothallis and P. phyllocardia groups, and other related groups of Pleurothallis with large vegetative habit. Harvard Papers in Botany, 26(1), 203–295. doi: 10.3100/hpib.v26iss1.2021.n14

Sierra-Ariza, M. A., Rincón-González, M., Wilson, M. & Villanueva, B. (2022). Una nueva especie de Pleurothallis (Pleu rothallidinae) subsección Macrophyllae-Fasciculatae para la región Andina colombiana. Lankesteriana, 22(1), 25–35. doi:

Vélez-Abarca, L., Jiménez, M., Gutiérrez Del Pozo, D. & Baquero, L. (2022). Pleurothallis ariana-dayanae, a new species in subsection Macrophyllae-Fasciculatae (Pleurothallidinae) from the Cordillera del Cóndor, Ecuador. Lankesteriana, 22(2), 101–109. doi:

Wilson, M., Belle, C., Dang, A., Hannan, P., Kenyon, C., Low, H., Stayton, T. & Woolley, M. (2011). A phylogenetic analy sis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing. Lankesteriana, 11(3), 369. doi:10.15517/lank.v11i3.18304

Wilson, M., Zhao, K., Hampson, H., Frank, G., Romoleroux, K., Jiménez, M., & Pérez, Á. J. (2018). A new species of Pleurothallis (Orchidaceae: Pleurothallidinae) in subsection Macrophyllae-Fasciculatae with a unique, highly reduced, morphologically distinct labellum. Lankesteriana, 18(3), 217–230. doi: 10.15517/LANK.V18I3.35495

Wilson, M., Larsen, B., Moreno, J. S., Ward, R., Riksen, J., Piña, L., Sierra-Ariza, M. A., Jiménez, M., Rincón-González, M., Galindo-Tarazona, R., Garzón, H. & Haelterman, D. (2022). New species of Pleurothallis (Orchidaceae: Pleuro thallidinae), a new country record, AND labellar morphology in the P. cardiostola-P. lilijae complex of subsection Macrophyllae-Fasciculatae. Harvard Papers in Botany, 27(2), 187–220. doi: 10.3100/hpib.v27iss2.2022.n10




How to Cite

Sierra-Ariza, M. A. (2023). Two new species of Pleurothallis (Pleurothallidinae) subsection Macrophyllae-Fasciculatae from The Central Andes of Colombia. Lankesteriana: International Journal on Orchidology, 23(1), 35–44.