Fig 1 - uploaded by Dariusz Szlachetko
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Scaphyglottis baudoana, dissected perianth (drawn by S. Nowak from the holotype).-A: Dorsal sepal.-B: Petal.-C: Lateral sepal.-D: Lip. Scale bar = 5 mm.
Source publication
Szlachetko, D. L. & Kolanowska, M. 2013: Notes on the Scaphyglottis fusiformis complex (Orchi-daceae, Epidendroideae) in Colombia with the description of two new species. — Ann. Bot. Fen-nici 50: 300–304. Scaphyglottis baudoana Szlach. & Kolan. and S. rangeli Szlach. & Kolan., two new orchid species from Colombia, are described and illustrated. The...
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Citations
... Although vegetative features are useful to delimit a sizeable portion of the Brazilian species of Scaphyglottis (Dressler 1993;Szlachetko & Kolanowska 2013;Szlachetko & Kolanowska 2014a;b;Koch et al. 2018;Santos & Silva 2020;Araújo et al. 2022), there are some taxa in Brazil with questionable taxonomic affinities. Although these taxa have similar vegetative and floral morphology, they have been commonly identified with distinct names, examples are the species pairs: S. stellata-S. ...
Scaphyglottis Poepp. & Endl. (Orchidaceae) is a neotropical genus with 78 species, 14 of which are found in Brazil. Some of these taxa have an intricate taxonomy, especially due to the morphological similarity among species and the existence of species complexes. Our study aims to test if the labellum shape, the main source of species diagnostic characters, can confirm the proposed circumscription of Brazilian species of Scaphyglottis. We analyzed 136 flowers from 12 species, to which we applied 12 landmarks, using a geometric morphometrics approach. Our results show that most species can be distinguished. Most of the variation is observed in the claw and apices of labellum lobes, confirming that the labellum is important tool in taxon distinction. Species with distinctly 3-lobed labellum showed some overlap but, for these taxa, we have found distinction specially in the lateral lobes. Our study showed new morphologically variable features in Scaphyglottis that can be used in future taxonomic studies. For widely distributed species we suggest a population-level approach, as local environmental factors can impact morphology, causing expected intraspecific variation.
Archila, Szlach. & S. Nowak (Orchidaceae, Epidendroideae) is described and compared with the morphologically close species
