Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 622 No. 2: 25 Oct. 2023
Type: Article
Published: 2023-10-25
DOI: 10.11646/phytotaxa.622.2.5
Page range: 155-164
Abstract views: 479
PDF downloaded: 11

Myoxanthus anancusiensis (Orchidaceae: Pleurothallidinae), a new species from the inter-Andean valley of Huancavelica, Peru

Escuela de Ingeniería Ambiental; Facultad de Ingeniería; Universidad Continental; Huancayo; Perú.
Programa de Investigación de Ecología y Biodiversidad; Asociación ANDINUS; Calle Miguel Grau 370; Sicaya; Huancayo; Junín; Perú. Facultad de Ciencias de la Salud; Universidad Continental; Huancayo; Perú.
Laboratory of Systematics of Vascular Plants; Postgraduate Program in Botany; Universidade Federal do Rio Grande do Sul; Porto Alegre 91509-900; RS; Brazil.
Laboratory of Systematics of Vascular Plants; Postgraduate Program in Botany; Universidade Federal do Rio Grande do Sul; Porto Alegre 91509-900; RS; Brazil.
Andean orchids Peruvian central Andes terrestrial Monocots

Abstract

We report a new species of Myoxanthus from Huancavelica, Peru. Myoxanthus anancusiensis is described, illustrated, and compared with its similar species M. serripetalus and M. oliviae. We carried out a systematic review of the herbarium information of Myoxanthus species reported for Peru and compared the morphological characteristics of similar species, to rule out overlooking already described taxa. The new species is characterized by being a medium-sized plant with a terrestrial habit that grows at an elevation of 2800 m. The flower is cherry-red in color with slightly yellow striations. The sepals present a smooth adaxial surface, and the petals are oblong-caudate with entire margin. The labellum is oblong-elliptic and fimbriate with lateral lobes erect. The new species represents an important record for the flora of the inter-Andean valleys of central Peru in the department of Huancavelica and suggests that carrying out more expeditions in this type of ecosystem is desirable.

 

References

  1. Barbosa Rodrigues, J. (1882) Genera et species orchidarum novarum, II. Sebastianopolis, 295 pp.
  2. Brieger, F.G. (1977) O valor taxonômico do número de políneas e de outros caracteres, com referência especial às Pleurothallidinae (Orchidaceae). Trabalhos do Congresso Nacional de Botânica 26: 33‒46.
  3. Brown, R. (1813) Pleurothallis. In: Aiton, W.T. (Ed.) Hortus Kewensis (2nd ed.), vol. 5. Taylor, London, pp. 211.
  4. Collantes, M.B. & Egoavil, A.L. (2014) Huancavelica-Amaru paraíso de orquídeas. Gobierno Regional de Huancavelica. Impresso Gráfica S.A., Lima, 481 pp.
  5. Fraga, C.N. & Kollmann, L.J.C. (2003) Myoxanthus ruschii (Orchidaceae), a new species from Brazilian Atlantic forest, Espírito Santo. Novon 13: 49–51. https://doi.org/10.2307/3393564
  6. Gutierrez, A. (2023) Observation in Inaturalist: https://www.inaturalist.org/observations/175883640 (accessed: 20 September 2023).
  7. Kartens, H. (1848) Beschreibung einiger neuen Pflanzengattungen. Botanische Zeitung (Berlin) 6: 394–410.
  8. Kraenzlin, F. (1916) Orchidaceae andinae. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. Leipzig. 54: 16–34.
  9. Kolanowska, M. & Szlachetko, D.L. (2014) Myoxanthus ortizianus (Orchidaceae), a new species from southern Colombia. Biodiversity Research and Conservation 36: 7–10. https://doi.org/10.2478/biorc-2014-0025
  10. Kolanowska, M. & Szlachetko, D.L. (2019) Myoxanthus oliviae sp. nov. (Pleurothallidinae, Orchidaceae) from Peru. Nordic Journal of Botany 37: 1–5. https://doi.org/10.1111/njb.02271
  11. Lindley, J. (1836) Notes upon some genera and species of American Orchidaceae. Companion to the Botanical Magazine 2: 353–357.
  12. Luer, C.A. (1982) A re-evaluation of the genus Myoxanthus. Selbyana 7: 34–54
  13. Luer, C.A. (1992) Icones pleurothallidinarum IX. Systematic of Myoxanthus. Addenda to Platystele, Pleurothallis, subgenus Scopula and Scaphosepalum (Orchidaceae). Monographs in Systematic Botany, Missouri Botanical Garden 44: 1–128.
  14. Pino, G., Alcalá, A., Marquiegui, D. & Payano, I. (2021) New Species of Crassulaceae from Huancavelica and a New Echeveria from Junín, Peru. Cactus and Succulent Journal 93: 286–302. https://doi.org/10.2985/015.093.0404
  15. Pino, G., Samain, M.S., Suclli, E., Alcalá, A. & Marquiegui, D. (2023) Two new geophytic species of Peperomia subgenus Tildenia (Piperaceae) from Central Peru. Haseltonia 29: 27–35. https://doi.org/10.2985/026.029.0105
  16. Pridgeon, A.M. & Chase, M.W. (2002) Nomenclatural notes on Pleurothallidinae (Orchidaceae). Lindleyana 17: 98–101.
  17. Quispe-Melgar, H.R., Llacua-Tineo, Y.S., Ames-Martínez, F.N., Huayta, D., Poma, K.L.L. & Hagsater, E. (2022) Epidendrum alejandrinae (Orchidaceae: Laeliinae), a new species from the high Andean forests of central Peru. Phytotaxa 541: 217–224. https://doi.org/10.11646/phytotaxa.541.3.1
  18. Rojas-Alvarado, G., Blanco, M.A. & Karremans, A.P. (2021) A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae). Phytotaxa 507: 211–258. https://doi.org/10.11646/phytotaxa.507.3.1