Abstract
Eugenia aeterna, a new species of Eugenia sect. Eugenia is described and illustrated. It has been recorded in the Ombrophilous Forest of the Atlantic Forest Domain in the municipalities of Caraguatatuba and Ubatuba, São Paulo state, Brazil. The new species is apparently related to Eugenia ligustrina and E. longipedunculata being distinct from both by: cataphylls persistent until mature twigs, even in the vegetative phase of the plant (versus cataphylls deciduous); puberulent or pilose hypanthium (vs. glabrous hypanthium) and calyx lobes reflexed and appressed to the fruit (vs. calyx lobes erect in the fruit). Following IUCN red list criteria, Eugenia aeterna is classified Least Concern. Additionally, a distribution map is provided.
References
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Valdemarin, K.S., Camargo, P.H.S.A., Moreno, D.J., Souza, V.C., Lucas, E. & Mazine, F.F. (2022) Eugenia paranapanemensis (Myrtaceae), The Pitanga-amarela, and a Key to Eugenia sect. Eugenia Species from São Paulo State, Brazil. Systematic Botany 47 (2): 498–505. https://doi.org/10.1600/036364422X16512564801669
Willdenow, C.L. (1799) Species Plantarum. Editio Quarta. Berolini [Berlin] ed. 4, 2. 962 pp.
Barroso, G.M. (1991) Sistemática de Angiospermas do Brasil, vol. 2. Viçosa: Universitária.
Hickey, L.J. (1973) Classification of the architecture of dicotyledoneous leaves. American Journal of Botany 1: 17–33. https://doi.org/10.1002/j.1537-2197.1973.tb10192.x
Giaretta, A., Lucas, E. & Sano, P.T. (2021) Taxonomic monograph of Eugenia sect. Schizocalomyrtus (Myrtaceae: Myrteae), a group within Eugenia with unusual flowers. Phytotaxa 524 (3): 135–177. https://doi.org/10.11646/phytotaxa.524.3.1
IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1, ed. 2. Gland, Switzerland and Cambridge, IUCN, UK, iv + 32 pp.
Lamarck, J.B.A.P. de M. (1789) Encyclopédie méthodique Botanique 3 (1). Plomteux, Liège, Panckoucke, Paris, pp. 196–207.
Legrand, C.D. (1961) Mirtaceas del estado de Santa Catarina (Brasil). Sellowia 13: 310–311.
Linnaeus, C. (1753) Species Plantarum. Stockholm, v. 1, 560 pp.
Mazine, F.F., Bünger, M., Faria, J.E.Q., Fernandes, T., Giaretta, A., Valdemarin, K.S., Santana, K.C., Souza, M.A.D. & Sobral, M. (2022) Eugenia in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available from: https://floradobrasil.jbrj.gov.br/FB10503 (accessed 12 December 2022)
Mazine, F.F., Faria, J.E.Q., Giaretta, A., Vasconcelos, T., Forest, F. & Lucas, E. (2018a) Phylogeny and biogeography of the hyper-diverse genus Eugenia (Myrtaceae: Myrteae), with emphasis on E. sect. Umbellatae, the most unmanageable clade. Taxon 67: 752–769.
Mazine, F.F., Sobral, M. & Valdemarin, K.S. (2018b) A new species of Eugenia (Myrtaceae) from Rio de Janeiro State, Brazil. Phytotaxa 343 (2): 160–166. https://doi.org/10.11646/phytotaxa.343.2.6
Mazine, F.F., Bünger, M.O., Faria, J.E.Q, Lucas, E. & Souza, V.C. (2016) Sections in Eugenia (Myrteae, Myrtaceae): nomenclatural notes and a key. Phytotaxa 289 (3): 225–236. https://doi.org/10.11646/phytotaxa.289.3.2
Miquel, F.A.W. (1849) Plantae Regnellianae: Myrtaceae. Linnaea 22 (5): 532–537.
Niedenzu, F. (1893) Myrtaceae. In: Prantl, K. & Engler, A. (Eds.) Die Natürlichen Pflanzenfamilien. Vol 3. Engelmann Press, Leipzig, pp. 57–105. https://doi.org/10.5962/bhl.title.4635
Payne, W.W. (1978) A glossary of plant hair terminology. Brittonia 30: 239–255. https://doi.org/10.2307/2806659
QGIS (2021) QGIS Development Team. QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: http://qgis.osgeo.org (accessed 30 July 2021)
Ribeiro, J.E.L.S., Hopkins, M.J.G., Vicentini, A., Sothers, C.A., Costa, M.A.S., Brito, J.M., Souza, M.A.D., Martins, L.H., Lohmann, L.G., Assunção, P.A., Pereira, E., Silva, C.F., Mesquita, M.R. & Procópio, L.C. (1999) Flora da Reserva Ducke: Guia de identificação das plantas vasculares de uma floresta de terra firme na Amazônia Central. INPA-DFID, Manaus, 800 pp.
Santana, K.C., Oliveira, M.I.U., Mazine, F.F. & Funch, L.S. (2017) Flora da Bahia: Eugenia sect. Eugenia (Myrtaceae). Sitientibus Série Ciências Biológicas 17. https://doi.org/10.13102/scb2624
Swartz, O. (1788) Nova Genera et Species Plantarum. Stockholm, 158 pp.
Thiers, B. (2023) [continuously updated] Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 27 May 2022)
Valdemarin, K.S., Faria, J.E.Q., Mazine, F.F. & Souza, V.C. (2020) A New Species of Eugenia subg. Pseudeugenia (Myrtaceae, Myrteae) from Brazilian Atlantic Forest. Systematic Botany 45: 537–543. https://doi.org/10.1600/036364420X15935294613518
Valdemarin, K.S., Camargo, P.H.S.A., Moreno, D.J., Souza, V.C., Lucas, E. & Mazine, F.F. (2022) Eugenia paranapanemensis (Myrtaceae), The Pitanga-amarela, and a Key to Eugenia sect. Eugenia Species from São Paulo State, Brazil. Systematic Botany 47 (2): 498–505. https://doi.org/10.1600/036364422X16512564801669
Willdenow, C.L. (1799) Species Plantarum. Editio Quarta. Berolini [Berlin] ed. 4, 2. 962 pp.