Taxonomic study of Myrtaceae in forest fragments in Amazonian Maranhão, Brazil Author Amorim, Gabriela Dos Santos Programa de Pós-graduação em Biologia Vegetal, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, 50670 - 901, Recife - PE, Brazil. Author Barbosa, Maria Regina De Vasconcellos Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Cidade Universitária, Caixa Postal 5065, 58051 - 970, João Pessoa- PB, Brazil. Author Jr, Eduardo Bezerra De Almeida Departamento de Biologia, Universidade Federal do Maranhão, Cidade Universitária Dom Delgado, Av. dos Portugueses, 1966 - Vila Bacanga, 65080 - 805, São Luís - MA. Author Thomas, William Wayt 0000-0002-4996-536X Institute of Systematic Botany, New York Botanical Garden, 2900 Southern Boulevard, Bronx, 10458 - 5126, NY, United States. wthomas @ nybg. org; https: // orcid. org / 0000 - 0002 - 4996 - 536 X wthomas@nybg.org text Phytotaxa 2022 2022-10-11 568 1 27 60 http://dx.doi.org/10.11646/phytotaxa.568.1.3 journal article 10.11646/phytotaxa.568.1.3 87ddb879-1616-4e3b-8817-434b61fb0c60 1179-3163 7184245 8. Eugenia flavescens De Candolle (1828: 272) . Type:— BRAZIL . in Brasiliae deserto Bahiensi, C. F. P. Martius s.n. ( holotype : M [0137665]; isotype : M [0137666] M [0137667]) . ( Fig 2H ) Shrubs 0.35– 15 m . Twigs glabrous or sparsely pubescent, the indumentum whitish. Leaves with petioles 2–7 mm long, glabrous, channeled; blades elliptic to broadly so, or oblong, 4.3–7 × 1.3–3.4 cm , glabrous, chartaceous or coriaceous, concolorous; glands conspicuous; base cuneate or rounded; apex acute, acuminate or long acuminate; midvein adaxially flat to prominent; lateral veins visible and slightly elevated, not arched, 6 to 12 pairs; intra-marginal vein 1–2 mm from the margin, margin flat. Inflorescence cauliflorous, a fascicle, the axis absent or 1–1.5 mm long, glabrous; bracts orbicular, 0.7 × 1.5 mm , glabrous, persistent in the fruit; pedicels 2–5 mm long, glabrous; bracteoles orbicular, 0.5 × 0.7 mm , glabrous, persistent in the fruit; flower buds globose, 3 × 4 mm , not constricted above ovary; calyx-lobes free, four, deltate or orbicular, 0.5–2 × 1–1.5 mm , glabrous, not reflexed, persistent in the fruit; ovary 2- locular. Immature fruit globose, 0.4–0.6 × 0.2–0.9 cm , glabrous or sparsely pubescent, surface marked with glands. Note:— Eugenia flavescens may be recognized by its leaves, yellowish in the dry material, with an adaxially flat to prominent midvein and slightly elevated lateral veins; its inflorescence, which is a cauliflorous fascicle with an axis that is absent or up to 1–1.5 mm long, turning yellow in dry material; its small flowers (3 × 4 mm ); and its globose fruits, which are glabrous or sparsely pubescent with marked glands. Distribution and habitat:— Known from Bolivia , Colombia , Ecuador , French Guiana, Guyana , Suriname , Venezuela and widely distributed in Brazil (POWO 2020, Flora do Brasil 2020 ). In Amazonian Maranhão , E . flavescens was found growing in “terra firme” forest, on rocky soil, and in old clearings. Phenology:— Flowering from January to April and June and fruiting in July. Specimens examined:— BRAZIL . Maranhão : Estrada BR 222, entre Santa Inês e Açailândia , 4°45’ S , 47°10’ W , 17 December 1978 (fr.), J. Jangoux 543 ( NY !) . Barão de Grajaú , 6°36’29” S , 43°24’17” W , 25 January 2012 (fr.), R.M. Harley 56478 (HUEFS, image) . São Luís , 8º Batalhão da Policia Militar , 2°29’49” S , 44°16’43” W , 15 June 2018 (fr.), G.S. Amorim 510 ( MAR !) ; Estrada do Olho d’Agua , February–March 1939 (st.), R.L. Fróes 11624 ( NY !) ; Estrada de S. Luís para o Rio Anil , 2°31’47” S , 44°18’10” W , 07 January 1950 (fl.), R.L. Fróes 25635 ( IAN !) ; Granja Barreto , 2°31’47” S , 44°18’10” W , 04 January 1950 (fl.), R.L. Fróes 25621 ( IAN !) . São Bento , contagem em campo de São Bento , 02 July 1979 (fr.), N.A. Rosa & O.C. Nascimento 2581 . Turiaçu , Ilha Trauira , 1°39’48” S , 45º22’18” W , 05 April 1987 (fl.), M.R. Santos 700 ( IAN !) . Additional specimens examined:— BRAZIL . Maranhão : Barão de Grajaú : ca. 50 Km da cidade na BR 230, 6°36’29” S , 43°24’17” W , 21 January 2012 (fr.), R.M. Harley 56478 ( NY !). Carolina, Fazenda Palestina, 7°22’56” S , 47°28’40” W , 01 March 2015 (fr.), G. Pereira-Silva 9746 (CEN, image). Estreito , margem direita do rio Tocantins /foz do rio Feio , 6°44’15” S , 47°29’26” W , 14 January 2008 (fr.), G. Pereira-Silva 12608 (CEN, image) .