A taxonomic revision of the genus Eperua (Leguminosae, Detarioideae, Detarieae) Author Fortes, Elenice A. Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Rua Monteiro Lobato, 255, Campinas, São Paulo, Brazil, 13083 - 862. forteselenice @ gmail. com; https: // orcid. org / 0000 - 0001 - 8307 - 6534 forteselenice@gmail.com Author Dos, Ilka P. Programa de Pós Graduação em Ciências Biológicas, área de concentração Botânica Tropical, Universidade Federal Rural da Amazônia e Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém, Pará, Brasil, CEP 66077 - 83 o. ilkapreis @ gmail. com; https: // orcid. org / 0009 - 0001 - 2511 - 2821 ilkapreis@gmail.com Author Steege, Hans Ter Naturalis Biodiversity Center, Leiden, The Netherlands; hans. tersteege @ naturalis. nl; https: // orcid. org / 0000 - 0002 - 8738 - 2659 & Quantitative Biodiversity Dynamics, Dept. of Biology, Utrecht University, Utrecht, The Netherlands hans.tersteege@naturalis.nl Author Aymard, Gerardo UNELLEZ-Guanare, Programa de Ciencias del Agro y del Mar, Herbario Universitario (PORT), Mesa de Cavacas, estado Portuguesa, Venezuela, 3350; gerardo. aymard @ gmail. com; https: // orcid. org / 0000 - 0001 - 9405 - 0508; & Compensation International Progress S. A. Ciprogress-Greenlife, Bogotá D. C., Colombia gerardo.aymard@gmail.com Author Secco, Ricardo De S. Museu Paraense Emilio Goeldi - MPEG Museu Paraense Emílio Goeldi / Universidade Federal Rural da Amazônia, Programa de Pós-Graduação em Ciências Biológicas - Botânica Tropical, Belém, Pará, Brazil, 66077 - 830 rsecco @ museu-goeldi. br; https: // orcid. org / 0000 - 0002 - 3295 - 7929 rsecco@museu-goeldi.br Author Martins-Da-Silva, Regina Célia V. Empresa Brasileira de Pesquisa Agropecuária, Embrapa Amazônia Oriental, Laboratório de Botânica, Trav. Enéas Pinheiro, s / n, Marco, CEP 66095 - 903 Author Mansano, Vidal F. Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Rua Monteiro Lobato, 255, Campinas, São Paulo, Brazil, 13083 - 862. forteselenice @ gmail. com; https: // orcid. org / 0000 - 0001 - 8307 - 6534 & Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Rio de Janeiro, RJ, Brazil, 22460 - 030 vidalmansano @ gmail. com; https: // orcid. org / 0000 - 0002 - 7204 - 0744 * Corresponding author & Programa de Pós-Graduação em Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Rua Monteiro Lobato, 255, Campinas, São Paulo, Brazil, 13083 - 862. forteselenice @ gmail. com; https: // orcid. org / 0000 - 0001 - 8307 - 6534 forteselenice@gmail.com text Phytotaxa 2023 2023-09-28 617 1 1 127 http://dx.doi.org/10.11646/phytotaxa.617.1.1 journal article 10.11646/phytotaxa.617.1.1 1179-3163 8389766 17a. Eperua rubiginosa Miq. var. rubiginosa Stipules 1.2–3.5(–4.1) × 0.7–2.2, free. Leaves (2–)3(–4); rachis (2.3–)4.0–15.2(–18.5) cm long; secondary venation with one intramarginal vein, sometimes two, the vein closer to the margin not continuous. Inflorescences 46.0–280.0(– 500.0) cm long; pedicel 0.6–2.0 mm in diameter. Flowers : hypanthium 2.8–5.9 mm in diameter; sepal 1.0–1.8(2.1) × 0.3–1.1 cm . Phenology:— Flowering throughout the year with a flowering pick from August to December; fruiting throughout the year, mainly from October to November. Distribution:— Brazil ( Amapá , Pará), French Guiana (Cayenne, Saint-Laurent-du-Maroni), Guyana ( Cuyuni-Mazaruni , Potaro-Siparuni , Upper Demerara-Berbice , Upper Takatu-Upper Essequibo ), and Surinam ( Brokopondo , Kabalebo, Marowijne , Para , Sipaliwini ). Habitat:— Mainly in floodplains forests ( igapó , swamp forest), sometimes in terra-firme forest, rarely in wallaba forest, on white and brown sand, stony clayey, sandy stony, and laterite soils, from sea level to 350 m elev. Occurrence in protected areas:— Parque Indígena Tumucumaque, Parque Nacional Montanhas do Tumucumaque ( Brazil ), Réserve Naturelle de Nouragues ( French Guiana , Cayenne). FIGURE 51. Eperua rubiginosa var. rubiginosa : A. bark; B. leaves; C. fruiting tree; D. terminal portion of a long and pendulous inflorescence with erect lateral racemes; E. flower, lateral view; F. hypanthium, stamens, and carpel. Specimen, A, B, D–F: Fortes E.A. & Silva G.S. da 167. Photos, E.A. Fortes. FIGURE 52. Eperua rubiginosa : A. leaf, var. grandiflora ; B. flowering and fruiting branchlet, var. rubiginosa ; C. adaxial petal, var. rubiginosa ; D. base of the stamens joined in a tube, var. rubiginosa ; E. anther and part of the filament, var. rubiginosa ; F. hypanthium and carpel, var. rubiginosa ; G. stigma and part of the style, var. rubiginosa . Specimens, A: Hostmann F.W.R. 229 -A; B: Fróes R. de L. 26638 ; C–G: Pires J.M. et al. 51182 . Illustrated by Carlos Alvarez. Etymology:— The specific epithet relates to its inflorescence, flowers, and fruit color indumentum. Vernacular names:— apa ( Irwin H.S. & Westra L.Y.T. 47471 , Pires J.M. & Westra L.Y.T. 48849 ), bioudou ( BAFOG 6239 , BAFOG 7831 , BAFOG 7937 , IFAT 7831 , IFAT 7937 ), eturi wallaba ( Redden K.M. et al. 6012 ), franga (boni), ouapa (créole) ( Schnell R.A.A. 11456 ), iperana-apá ( Rosa N.A. 1183 ), ituri wallaba ( Fanshawe D.B. 4840 ), oever wallaba ( Maguire B. et al. 54014 ), ouapa (nom créole) ( Oldeman R.A.A. 1552 ), tapaka ( Grenand P. 1521 ), uapá ( Candido J. s.n. IAN44221 , IAN44221a ), walaba ( BAFOG 219 , Landsbosbeheer 311 , Lanjouw J. 1209 , 738 , Lanjouw J. & Lindeman J.C. 324 , Mennega A.M.W. 102 ), wallaba ( Evans R. et al. 1929 , Junker L. 249 ), wapa ( Angel G. 126 , Fleury M. 1129 , Hoff M. 5964 , Oldeman R.A.A. 1520 , Thiel J. 891 , 892 ), wapa riviére ( Angel G. 126 , Bordenave B. 228 , Paget D. 51 , Thiel J. 891 , 892 , Prévost M.F. 4038 , Benoist R. s.n. P03465703 ). Uses:— Brazil : wood used for house construction ( Fortes E.A. collections), shingles, fencing, and poles ( Pires J.M. & Westra L.Y.T. 48849 ). Taxonomic notes:— Eperua rubiginosa shares with E. glabra the multijugate leaves with straight leaflets, long and pendulous inflorescences, erect lateral racemes, caducous bracteoles attached to the lower portion of the pedicels, non-tubular corolla, and exserted stamens joined in a tube. However, E. rubiginosa differs by the tomentulose inflorescence (vs. glabrous in E. glabra ) and tomentose ovary and fruit (vs. glabrous in E. glabra ) (see Table 4 ). Selected specimens:— BRAZIL . Amapá , Macapá , Fazendinha , Parque Zoobotânico , IEPA, rodovia JK , 10 ki, empreendimento AHE, Santo Antônio do rio Jari , 17 August 2010 , Carim M.J.V . & Guimarães J.R.S. 533 ( HAMAB ). Oiapoque , nas margens da rodovia BR156 entre Oiapoque e Calçoene , a 23 km de Oiapoque , 3°42’11.8”N 51°46’24.1”W , 04 December 2021 , Fortes E.A . & Silva G.S. da 167 ( IAN , RB ); nas margens do rio Oiapoque próximo à ponte BR-GF , lado brasileiro, 3°51’22.1”N 51°49’29.7”W , 05 December 2021 , Fortes E.A . & Silva G.S. da 168 ( IAN , RB ). Pedra Branca do Amapari , Parque Nacional Montanhas do Tumucumaque , acima da Base Jupará , 105 m elev., 1°11’16”S 52°22’8”W , 08 November 2018 , Goldenberg R . et al. 2522 ( MG , RB ); rio Amapari , between Munguba and Serra do Navio , 0°42’0”N 51°45’0”W , 25 September 1961 , Pires J.M . et al. 51182 ( IAN , INPA , K , MG , NY , U , US ). Serra do Navio , rio Araguari , between camps 12 and 13, 04 October 1961 , Pires J.M . et al. 51501 ( IAN , MG , NY , US ). Pará , Óbidos , rio Paru do Oeste ( Tirió ), barranco à beira do rio, 26 June 1960 , Cavalcante P.B . 870 ( MG , NY ). Oriximiná , distrito de Porto Trombetas , km 6 , cachoeira da Porteira , 1°5’23”S 57°2’84”W , 17 September 2003 , Faria S.M . de et al. 2450 ( HSTM , MBM , RB ). FRENCH GUIANA . Cayenne , Cayenne , unknown locality, October 1910 , 1948, Santini 1948 ( L ). Kourou , riviére Kourou, bassin du Kourou , 10 October 1980 , Thiel J . 729 ( CAY ). Régina , station des Nouragues (cam inselberg), trail XV detour near RG on Grand Plateau , 40– 20 m elev., 4°5’30”N 52°41’0”W , 10 October 2008 , Geiselman C.K . 169 ( NY ). Roura , rivière la Counamama , 4°31’0”N 52°16’0”W , 06 October 2000 , Prévost M.F . 4038 ( CAY ). Saint-Élie , Saut takari-tante , bassin du sinnamary, m elev., 4°37’0”N 52°56’0”W , 19 November 1989 , Hoff M . 5964 ( CAY ). Saint-Georges , crique Gabaret , 3°55’0”N 51°47’59”W , 07 December 2005 , Delnatte C . 325 ( CAY , COL , MPU ). Sinnamary , pointe Combi , région littorale, riviére Sinnamary , 24 November 1979 , Thiel J . 588 ( CAY ). Saint-Laurent-du-Maroni , Grandi-Santi , 25 August 1961 , Schnell R.A.A . 11456 ( CAY , P , U , US ). Mana , unknown locality, 06 December 1979 , Thiel J . 601 ( CAY ). Maripasoula , camp no. 1 ouman fou langa soula—bassin du haut marouini Saint-Laurent-du-Maron, 2°52’59.9”N 54°0’0”W , 24 August 1987 , Granville J-J. de 9666 ( CAY , US ). GUYANA . Cuyuni-Mazaruni , Iwokrama Rainforest Reserve , between Pakutau Falls and Ireng Creek on Siparuni R., 75 m elev., 4°45’0’’N 59°01’0’’W , 09 November 1995 , Clarke H .D. 442 ( US ). Potaro-Siparuni , Kaieteur National Park , plot Study #1, NE from end of airstrip at headwaters of Korume Creek , 300–350 m elev., 5°10’0”N 59°28’59.9”W , 11–19 March 1997 , Kelloff C.L . & McKee G.S. 1246 (US ) Upper Demerara-Berbice , Fairview Landing E bank of Essequibo River , near end of Mabura road , 91 m elev., 4°40’0”N 58°40’0”W , 19 July 1990 , McDowell T . 3271 ( INPA , US ). Upper Takatu-Upper Essequibo , Acarai Mts. , 4 km S of Sipu River , area near camp at base of Acarai Mts. , 245 m elev., 1°23’0”N 58°56’0”W , 08 September 1998 , Clarke H . D. et al. 7639 ( U , US ); Essequibo region , Kuyuwuni river watershed, Airshalton Landing , upstream 2–3 km N & S banks, 250 m elev., 2°03’00”N 59°10’0”W , 22 November 1993 , Henkel T.W . et al. 3100 ( U , US ); Essequibo River , 222 m elev., 2°15’21.1”N 58°19’26.5”W , 27 April 2004 , Redden K.M . et al. 3130 ( US );. SURINAM . Brokopondo , van Blommesteijn Lake , Island south, 48 m elev., 4°33.8’0”N 55°7.2’0”W , 11 April 2011 , Bhikhi C.R . et al. 873 ( U ). Kabalebo , Central SURINAM Nature Reserve , unnamed tributary of Coppename River 200 m South of Driefoetoe Sula , 50–75 m elev., 4°45’0”N 59°1’0”W , 10 March 2004 , Clarke H .D. & Rhodes J. 11375 ( US ). Marowijne , Albina , ad ripas fluv. Marowijne. S of Albina , 19 September 1948 , Lanjouw J . & Lindeman J.C. 324 ( IAN , U ). Para , unknown locality, undated, Voltz F . s.n. U1302936 ( U ). Sipaliwini , Coeroeni , N side of Kuruni Island, E of trail from airstrip to N branch of Kuruni River around island, ca. 30 airline km E of confluence on Corantijn River , 180 m elev., 3°22’12”N 57°20’36”W , 10 November 1994 , Evans R . et al. 1929 ( CAY , IAN , INPA , P , RB , U , US ). Goddo , unknown locality, 19 August 1908 , Tresling J.H.A. T . 334 ( RB , U ). Raleigh vallen- Voltzberg Nature Reserve on the Coppename River , 145 kms SW of Paramaribo , vicinity of Lolopasi Hut , left bank of the Coppename River , 21 November 1976 , Mori S.A . & Bolten A. 8673 ( U ) .