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| Maxillaria andina Pisso-Florez, J.S.Moreno, P.A.Harding & Baquero, in Pisso-Florez, Moreno, Harding et Baquero, 2024. |
Abstract
Maxillaria andina, a new orchid species from high-Andean ecosystems of southwestern Colombia and northern Ecuador, is described. The new species is distinguished by having long and narrowly linear white sepals and petals with revolute margins, lip with mucronate epichile, and callus without hairs or trichomes. Distinguishing characters are provided to differentiate it from morphologically similar species, along with ecological and taxonomical notes. Additionally, Maxillaria sibundoyensis is synonymized with Maxillaria floribunda.
Keywords: Colombia, Ecuador, high-Andean ecosystems, Neotropical flora, taxonomy
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| Maxillaria andina Pisso-Florez, J.S.Moreno, P.A.Harding & Baquero. A. Habit. B. Flower. C. Dissected perianth, not flattened. D. Ovary, column and lip, lateral view. E. Adaxial view of lip. F. Column, oblique, ventral, and lateral views. LCDP by G.A. Pisso-Florez and J.S. Moreno based on the holotype. |
Maxillaria andina Pisso-Florez, J.S.Moreno, P.A.Harding & Baquero, sp. nov.
Diagnosis: Maxillaria andina is most similar to M. floribunda and Maxillaria caveroi D.E.Benn. & Christen-son. It is distinguished from M. floribunda by having the entirely white sepals and petals (vs. yellow, white and brownish petals), the longer and narrower sepals (6.08–6.55 × 0.26–0.57 vs. 5.3 × 1.0 cm), the smaller lip (0.78 × 1.14 vs. 1.3 × 1.8 cm), with the mid-lobe apex verrucose (vs. scabrous), and the base of the lip scabrous (vs. slightly verrucose or spiculate). The new species differs from M. caveroi by having narrower, linear sepals and petals (vs. lanceolate) and the absence of sparse trichomes on the lip.
Etymology: Named in reference to the Andean region of Colombia and Ecuador in South America, where the new species was found. The Andean region is a key area for conserving the diversity of Maxillariinae species.
Gustavo Adolfo Pisso-Florez, Juan Sebastián Moreno, Patricia A. Harding and Luis E. Baquero. 2024. A New Species of Maxillaria (Maxillariinae) from the northern Andes and a new synonym of Maxillaria floribunda. Lankesteriana. 24(1); 79-91. DOI: doi.org/10.15517/lank.v24i1.56756 [2024-04-22]
#NuevaEspecie #PlantasColombia
Etymology: its name refers to the Andean region between Colombia and Ecuador, where this species is distributed.
