Abstract
A new species of the orchid genus Restrepia from the department of Santander, in the western slope of the eastern Andes of Colombia, is described and illustrated. Restrepia santanderensis is compared with the morphologically similar R. flosculata and R. mendozae, which share having short inflorescences and small to medium yellow flowers. The new species can be recognized by its ramicauls prominently covered by brown-dotted sheaths, with the uppermost sheath elongate as long as the peduncle, the sepals partially spreading, the synsepal with glandular trichomes along the veins of the adaxial surface, the straight petals and the rectangular lip with truncate apex. Comparisons with similar species and comments on its ecology are provided.
References
Armenteras, D., Gast, F. & Villareal, H. (2003) Andean forest fragmentation and the representativeness of protected natural areas in the eastern Andes, Colombia. Biological conservation 113: 245–256. https://doi.org/10.1016/S0006-3207(02)00359-2
Bernal, R., Gradstein, S.R. & Celis, M. (2016) Catálogo de plantas y líquenes de Colombia. Volumen II. Magnoliaceae a Zygophyllaceae – especies introducidas y cultivadas. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. pp. 1509–3058.
Bogarín, D., Eberhard, K. & Díaz-Morales, M. (2019) Lepanthes elusiva – a New Species of Lepanthes (Orchidaceae: Pleurothallidinae) from Tapantí Area in Cartago, Costa Rica and a Glance to Other Species of the Genus in a Small Area Around the Río Grande de Orosi in Costa Rica. Die Orchidee 5: 17–28.
Díaz-Piedrahita, S. & Rodríguez-Cabeza, B.V. (2011) Novedades en Asteraceas colombianas I. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 35: 411–424.
Díaz-Piedrahita, S. & Rodríguez-Cabeza, B.V. (2012) Novedades en Asteraceas colombianas II. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 36: 501–515.
Christenson, E.A. (2013) Maxillaria carrilloi. In: Christenson, E.A. Maxillaria, an unfinished monograph, Volume 1. published for Robert Christenson by Patricia Ann Harding, Lebanon, pp. 174–175.
Gutierrez Morales, N., Harding, P., Dalström, S. & Moreno Silva, J.S. (2018) A new species of Cyrtochilum (Orchidaceae: Oncidiinae) from the Eastern Cordillera of Colombia. Lankesteriana 18: 63–68.
Gutierrez Morales, N., Vieira-Uribe, S. & Moreno, J.S. (2021) Lepanthes marielana (Orchidaceae, Pleurothallidinae), a new species from the eastern Andes in Colombia. Phytotaxa 484: 113–120. https://doi.org/10.11646/phytotaxa.484.1.5
Humboldt, F.W.H.A., Bonpland, A.J.A. & Kunth, C.S. (1815) Nova Genera et Species Plantarum (folio ed.). Librariae Graeco-Latino-Germanicae, ex typographia d’Hautel. Paris. 302 pp.
Jara-Muñoz, O.A. & Zabala-Rivera, J.C. (2018) Dos nuevas especies de Begonia (Begoniaceae) de la Serranía de los Yariguíes (Santander, Colombia). Novon: A Journal for Botanical Nomenclature 26: 355–363. https://doi.org/10.3417/2018226
Karremans, A.P. (2016) Genera Pleurothallidinarum: an updated phylogenetic overview of Pleurothallidinae. Lankesteriana 16: 219–241. https://doi.org/10.15517/lank.v16i2.26008
Karremans, A.P & Vieira-Uribe, S. (2020) Pleurothallids Neotropical Jewels - Volume I. Imprenta Mariscal, Quito. 320 pp.
Karremans, A.P., Chinchilla, I.F., Rojas-Alvarado, G., Cedeño-Fonseca, M. Damián, A. & Léotard, G. (2020) A reappraisal of Neotropical Vanilla. With a note on taxonomic inflation and the importance of alpha taxonomy in biological studies. Lankesteriana 20: 395–497. https://doi.org/10.15517/lank.v20i3.45203
Lehmann, F. & Kraenzlin, F.W.L. (1899) Epidendrum cupreum. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 26: 476.
Lindley, J. (1836) Notes of some genera and species of the American Orchidaceae. Companion to the Botanical Magazine 2: 353–357.
Lindley, J. (1842) Pleurothallis muscifera. Edwards’s Botanical Register 28: 79.
Luer, C.A. (1982) Miscellaneous new species and combinations in the Pleurothallidinae (Orchidaceae). Selbyana 7: 127.
Luer, C.A. (1976) Miscellaneous species of Pleurothallis. Selbyana 3: 38–201.
Luer, C.A. (1996) Icones pleurothallidinarum XIII. Systematics of the genus Restrepia (Orchidaceae). Monographs in Systematic Botany from the Missouri Botanical Garden 59: 1–168.
Mendoza-Cifuentes, H. & Aguilar-Cano, J. (2018) A new species of Elaeagia (Rubiaceae) from the Cordillera Oriental of Colombia. Biota Colombiana 19: 3–9. https://doi.org/10.21068/c2018.v19s1a01
Millner, H.J. & Baldwin, T.C. (2016) Floral micromorphology of the genus Restrepia (Orchidaceae) and the potential consequences for pollination. Flora-Morphology, Distribution, Functional Ecology of Plants 225: 10–19. https://doi.org/10.1016/j.flora.2016.09.007
Millner, H.J., Bachman, S.P. & Baldwin, T.C. (2020) An assessment of the conservation status of Restrepia (Orchidaceae) reveals the threatened status of the genus. Plant Ecology & Diversity 13: 115–131. https://doi.org/10.1080/17550874.2020.1735553
Moreno, J.S., Gutiérrez, N. & Vieira-Uribe, S. (2018) Lepanthes agatarum (Orchidaceae: Pleurothallidinae), a new species honoring an ancient tribe from the eastern Andes in Colombia. Phytotaxa 376: 89–96. https://doi.org/10.11646/phytotaxa.376.2.2
Parra, E., Hágsater, E. & Sánchez, L. (2013) Epidendrum fusagasugaense. In: Hágsater, E. & Santiago, E. (eds.) The Genus Epidendrum, Part 10. Icones Orchidacearum 14. t. 1430.
Reichenbach, H.G. (1886) Orchideae describuntur. Flora, oder allgemeine botanische Zeitung 69: 547–562.
Reichenbach, H.G. (1859) Restrepia muscifera (Lindl.) Rchb. f. ex Lindl. In: Lindley, J. Folia orchidacea: An enumeration of the known species of orchids, Restrepia. Bradbury and Evans Printers, London. pp. 1–3.
Ruiz, H. & Pavón, J. (1798) Humboltia contorta. In: Ruiz, H & Pavón, J. Systema Vegetabilium Florae Peruvianae et Chilensis. Typis Gabrielis de Sancha, Madrid. pp. 456.
Sander, H.F.C. & Lehmann, F.C. (1901) Restrepia trichoglossa. In: Sander, H.F.C. Sander’s Orchid Guide, F. Sander & Co., St. Albans. pp. 215.