Two new species of Eperua (Leguminosae, Detarioideae, Detarieae) from the Amazon and Cerrado Biomes discovered in a botanical garden and a backyard

ELENICE A. FORTES; GUILHERME S. DA SILVA; VIDAL F. MANSANO

doi:10.11646/phytotaxa.591.3.2

Issue: Vol. 591 No. 3: 5 April 2023

Type: Article

Published: 2023-04-05

DOI: 10.11646/phytotaxa.591.3.2

Page range: 196-208

Abstract views: 77

PDF downloaded: 128

**Two new species of Eperua (Leguminosae, Detarioideae, Detarieae) from the Amazon and Cerrado Biomes discovered in a botanical garden and a backyard**

ELENICE A. FORTES⁺⁻
GUILHERME S. DA SILVA⁺⁻
VIDAL F. MANSANO⁺⁻

Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Rua Monteiro Lobato, 255, 13083-862, Campinas, SP, Brazil.

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil.

Fabaceae Eperua s.l. clade Neotropical flora species description taxonomy Eudicots

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Abstract

In this study, we describe two new species of Eperua, E. cerradoensis and E. manausensis. Eperua cerradoensis is the first species of the genus described from the Cerrado Biome (Brazil); all other 16 species, including the other new species described here E. manausensis, are endemic to the Amazon region (Amazon basin and the Guiana Shield). Both species have short and erect inflorescences. Eperua cerradoensis has a non-tubular corolla, white petals, and exserted stamens, and is most similar to E. duckeana and E. schomburgkiana, from which it differs by the bracteole size and phenology, flower indumentum, besides other vegetative characteristics. Eperua manausensis has a tubular corolla, pink to purple petals, and inserted stamens, and it is most similar to E. grandiflora subsp. guyanensis, but differs from it by the bracteole position and phenology and flower indumentum. The type localities of both species are very unusual: a backyard (E. cerradoensis) and a botanical garden (E. manausensis). The two species have been collected in the last five years. These discoveries show that new undescribed species can be found even in more disturbed areas and that comprehensive knowledge of the flora requires new collections and more taxonomists.

References

Aublet, J.B.C.F. (1775) Histoire des plantes de la Guiane Françoise. Tome I and Tome II. Pierre Françoies Didot jeune, Paris, 976 pp.
Baillon, H.E. (Jan–Feb 1870) Caesalpinées. In: Baillon, H.E. (Ed.) Histoire des plantes. Tome II. Librairie Hachette & Cie, Paris. pp. 110–111.
Barroso, G.M., Peixoto, A.L., Costa, C.G., Ichaso, C.L.F., Guimarães, E.F. & Lima, H.C. (1991) Sistemática das angiospermas do Brasil. Vol 2. Imprensa Universitária, Universidade Federal de Viçosa, Viçosa, pp. 15–100.
Beentje, H. (2010) The Kew plant glossary an illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, Richmond, 160 pp.
Bentham, G. (1870) Caesalpinieae. In: von Martius, C.F.P. & Eichler, A.G. (Eds.) Flora Brasiliensis 15 (2). F. Fleischer, Leipzig, pp. 226–228.
Bruneau, A., Forest, F., Herendeen, P.S., Klitgaard, B.B. & Lewis, G.P. (2001) Phylogenetic relationships in the Caesalpinioideae (Leguminosae) as inferred from chloroplast trnL intron sequences. Systematic Botany 26: 487–514. https://doi.org/10.1043/0363-6445-26.3.487
Bruneau, A., Mercure, M., Lewis, G.P. & Herendeen, P.S. (2008) Phylogenetic patterns and diversification in the caesalpinioid legumes. Botany 86: 697–718. https://doi.org/10.1139/B08-058 
Cowan, R.S. (1975) Monograph of the genus Eperua (Leguminosae: Caesalpinioideae). Smithsonian Contributions to Botany 28: 1–45.
Cowan, R.S. (1985) Studies in Tropical American Leguminosae – IX. Brittonia 37 (3): 292–294. https://doi.org/10.2307/2806078
Ducke, W.A. (1932) Espéces nouvelles de plantes de l’Amazonie brésilienne. Bulletin du Muséum National d’Histoire Naturelle 4 (6): 728–729.
Ducke, W.A. (1940) Notes on the wallaba trees. Tropical Woods 62: 21–28.
Estrella, M. de La, Forest, F., Klitgaard, B., Lewis, G.P., Mackinder, B.A., Queiroz, L.P. de, Wieringa, J.J. & Bruneau, A. (2018) A new phylogeny-based tribal classification of subfamily Detarioideae, an early branching clade of florally diverse tropical arborescent legumes. Scientific Reports 8: 6884. https://doi.org/10.1038/s41598-018-24687-3
Fougère-Danezan, M., Herendeen, P.S., Maumont, S. & Bruneau, A. (2010) Morphological evolution in the variable resin-producing Detarieae (Fabaceae): Do morphological characters retain a phylogenetic signal? Annals of Botany 105: 311–325. https://doi.org/10.1093/aob/mcp280 
Fougère-Danezan, M., Maumont, S. & Bruneau, A. (2007) Relationships among resin-producing Detarieae s.l. (Leguminosae) as inferred by molecular data. Systematic Botany 32: 748–761. https://doi.org/10.1043/06-67.1
Harms, H.A.T. (1905) Zwei neue Gattungen der Leguminosae aus dem tropichen Afrika. In: Engler, A. (ed.) Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. Wilhelm Engelmann, Leipzig, pp. 76–77.
Harms, H.A.T. (1910) Leguminosae africanae. In: Engler, A. (ed.) Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. Wilhelm Engelmann, Leipzig, pp. 293–295. 
Instituto Brasileiro de Geografia e Estatística—IBGE (2019) 2019 Biomas e Sistema Costeiro-Marinho do Brasil - 1:250 000. Available from: https://www.ibge.gov.br/geociencias/informacoes-ambientais/estudos-ambientais/15842-biomas.html?edicao=25799&t=downloads/ (accessed: 10 January 2022).
Lewis, G.P., Schrire, B., MacKinder, B. & Lock, M. (2005) Legumes of the World. Kew, Royal Botanic Gardens. 577 pp.
LPWG—Legume Working Phylogeny Group (2017) A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny. Taxon 66 (1): 44–77. https://doi.org/10.5061/dryad.61pd6 
Miquel, F.A.G. (1851) Caesalpiniae. In: Miquel, F.A.G. (Ed.) Stirpes Surinamensis Selectae. Arnz & Comp, Leiden, pp. 12–13. https://doi.org/10.5962/bhl.title.77484
Obiang-Mbomio, D. & Breteler, F.J. (2007) Révision du genre Eurypetalum Harms (Fabaceae, Caesalpinioideae). Adansonia 29 (1): 67–76.
Oliver, D. (1891) Hooker’s Icones Plantarum, vol. 20.
Pellegrin, F. (1924) Augouardia Pellegrin, genre nouveau de Césalpiniées du Congo. Bulletin de la Société Botanique de France 71: 309–311.
Romero-González, G.A. & Aymard, G.A.A. (2019) A new species of Eperua (Leguminosae, Detarioideae) from Amazonas state, Venezuela. Harvard Papers in Botany 24: 341–347. https://doi.org/10.3100/hpib.v24iss2.2019.n17
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.C., 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, 816 pp.
Spinelli-Araujo, L., Bayma-Silva, G., Torresan, F.E., Victoria, D., Vicente, L.E., Bolfe, E.L. & Manzatto, C. (2016) Conservação da Biodiversidade do Estado do Maranhão: Cenário Atual em Dados Geoespaciais. Embrapa Meio Ambiente, Jaguariúna, 28 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/ih/ (accessed 10 January 2022)