Abstract
The flora of the Serra do Cipó (Minas Gerais state, Brazil) has been extensively surveyed and documented in the past decades. Taxonomic novelties are still being revealed from this region, including Stachytarpheta odorata, a new species of Verbenaceae here described and illustrated. This species is a sticky and heavily aromatic shrub, with abundant pedicellate glandular trichomes, and inflorescences with calyx deeply immersed in excavations in the rachis. For its recognition, we provide photographs, a geographic occurrence map, comparisons with the morphologically related species, as well as ecological and taxonomic notes. Stachytarpheta odorata was collected only once in its natural habitat. Expeditions to its type locality and surroundings were carried out with the aim to recollect it but were unsuccessful. Still, fortunately, some individuals of S. odorata are kept cultivated ex situ at a greenhouse of Federal University of Juiz de Fora (Minas Gerais, Brazil). Following the IUCN Red List categories and criteria, the new species may be considered Critically Endangered (CR). If S. odorata is not rediscovered in its natural habitat in the near future, these cultivated individuals could be potentially utilized for reintroduction programmes. Finally, the Verbenaceae richness in Serra do Cipó is updated through a checklist and an identification key with the recognition of six genera and 29 taxa.
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Data Availability
All sources of information are included in this work. Material collected in the field was deposited at CESJ herbarium (Thiers 2023).
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Acknowledgements
We thank Danilo Alvarenga Zavatin assembling the photo plate; and the Laboratório de Microscopia Eletrônica/Centro de Estudos em Materiais (CEM)/UFJF for using the scanning electron microscope. We also thank the reviewer, Vinícius Resende Bueno, for their valuable considerations.
Funding
This study is part of the first author’s doctoral thesis, developed in the Programa de Pós-graduação em Ciências Biológicas (Botânica) of the Universidade Federal do Rio de Janeiro, with a scholarship from the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq 141837/2020–9). M.T. is supported by the Alexander von Humboldt Foundation (BRA/1139098), FAPERJ (E-26/202.708/2019–JCNE), and CNPq (Pq-2 grant, 306758/2019–9).
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Pedro Henrique Cardoso: manuscript preparation, fieldwork, taxonomic analyses of herbarium collections, description, and comments about all species. Fátima Salimena: taxonomic analyses from herbarium collections, fieldwork, and comments on all species. Nádia Somavilla: analyses of the plant pubescence, aggregation of intellectual content, and photographs. Luiz Menini Neto: substantial contribution to manuscript development, aggregation of intellectual content, photographs, critical review of the text. Marcelo Trovó: substantial contribution to the concept and development of the study, critical review of the text, resources, and supervision.
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Cardoso, P.H., Salimena, F.R.G., Somavilla, N. et al. Verbenaceae from the Serra do Cipó, Minas Gerais, Brazil: Recognition of the New and Rare Stachytarpheta odorata and an Update of the Species Richness. Tropical Plant Biol. 16, 123–134 (2023). https://doi.org/10.1007/s12042-023-09334-0
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DOI: https://doi.org/10.1007/s12042-023-09334-0