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| Maxillaria purpureonigra Zambrano, Carnevali & Solano, in Zambrano R., Carnevali et Solano, 2020. |
Abstract
Maxillaria purpureo-nigra Zambrano, Carnevali & Solano, a new species recently collected in Southwestern Ecuador is described and illustrated. Information concerning its distribution, habitat, phenology, and conservation status is provided. The new taxon is a member of Maxillaria sect. Rufescens, and it is compared with morphologically similar species such as M. culebrica, M. dressleriana, M. hedwigiae, and M. richii. However, we consider that it is more similar to M. prunina, from which it differs by its deep purple flowers, with oblong-elliptic sepals, oblong-lanceolate petals with acute apex, and a lip with an oblong-ovate mid-lobe suffused with dark-purple at the center, including the callus. We also provide a key to the Ecuadorean species of M. sect. Rufescens.
Keywords: Monocots, Identification key, Maxillaria prunina, Mormolyca, new taxon, taxonomy
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| Maxillaria purpureo-nigra Zambrano, Carnevali & Solano. A. Habit. B. Flower, lateral view. C. Flower dissection. D. Ovary and column, lateral view. E. Anther cap and pollinarium. Drawn by B.J. Zambrano based on Zambrano B. 473. |
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| Maxillaria purpureo-nigra Zambrano, Carnevali & Solano. A. Habit. B. Flower, 3/4 view. C. Flower dissection. D. Ovary and column, lateral view. E. Detail of the column, lateral and ventral view. F. Details of the lip, frontal, lateral view, and apex. G. Anther cap and pollinarium. H. Capsule. Plate by B.J. Zambrano based on Zambrano B. 473, Zambrano B. 2342, Zambrano B. s.n. |
Maxillaria purpureo-nigra Zambrano, Carnevali & Solano sp nov.
Species haec Maxillaria prunina (Arévalo) Molinari & Mayta similis sed floribus purpureis, sepalo dorsali oblongo-elliptico, petalisoblique oblanceolatis, acutis, trinervis, labello oblongo-ovato, obtuso vel truncato, lobo medio cum callo atropurpureo differt.
Etymology:—The specific epithet is from the Latin purpureus “purple or dull red with a slight dash of blue” and niger/nigra “black”, in reference to the purple color of the sepals and petals and the dark, almost blackish-purple lip.
Bosco Javier Zambrano Romero, Germán Carnevali and Rodolfo Solano. 2020. Maxillaria purpureo-nigra (Orchidaceae: Maxillariinae), A New Species from Southwestern Ecuador belonging to Maxillaria sect. Rufescens. Phytotaxa. 477(2); 205–216. DOI: 10.11646/phytotaxa.477.2.5
