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 163382 10.11646/phytotaxa.568.1.3 87ddb879-1616-4e3b-8817-434b61fb0c60 1179-3163 7184245 2. Campomanesia aromatica (Aubl.) Grisebach (1860: 242) . Basionym:— Psidium aromaticum Aublet (1775: 191) . Type:— FRENCH GUIANA . “Habitat in sylvis Caiennae & Guianae”, Aublet s.n. ( holotype : BM 953694 , image) . Shrubs 1.5–3.5 m . Twigs glabrous or sparsely pubescent, the indumentum whitish. Leaves with petioles 7–13 mm long, glabrous or sparsely pubescent, the indumentum whitish, channeled or shallowly channeled on the basal half; blades elliptic to broadly so, ovate or obovate, 5.6–10.8 × 2.9–5.1 cm , glabrous or sparsely pubescent, pubescent when young, the whitish, membranaceous or chartaceous, discolorous; glands conspicuous, dark; base cuneate, rounded, or obtuse; apex acute or acuminate; midvein adaxially impressed; lateral veins impressed and covered with indumentum whitish abaxially and prominent adaxially, not arched, 5 to 12 pairs; intra-marginal vein absent, margin flat. Inflorescence axillary, a solitary flower, the axis inconspicuous; bracts lanceolate, ovate or oblong, 5–7 × 1 mm , puberulent, caducous after anthesis; pedicels 12–42 mm long, puberulent; bracteoles linear, 1.5–3 × 0.1–0.2 mm , pubescent, caducous after anthesis; flower buds globose, 3.2–3.9 × 3–3.5 mm , not constricted above ovary; calyx-lobes partially fused in the lower third of the bud, five, obovate or obtriangular, 1–2 × 1 mm , sparsely pubescent or pubescent, not reflexed, persistent in the fruit; ovary 3–7-locular. Immature fruits globose, 0.4–1.1 × 0.4–1 cm , sparsely pubescent, surface smooth. Note:— Campomanesia aromatica may be recognized by having blades with lateral veins covered with whitish indumentum abaxially, impressed, 5 to 12 on each side; the flowers are solitary with pedicels 12–42 mm long; calyxlobes partially fused in the lower third of the bud, five; and a 3–7-locular ovary. Distribution and habitat:— Known from Bolivia , French Guiana, Guyana , Suriname , Trinidad-Tobago, Venezuela and widely distributed in Brazil (POWO 2020, Flora do Brasil 2020 ). In Amazonian Maranhão , C . aromatica was found growing along a road, and in “terra firme” and secondary forests. Phenology:— Flowering in January and fruiting in January and February. Specimens examined:— BRAZIL . Maranhão : Alcântara , 04 February 1984 (fr.), A.M.V. Carvalho 2078 (SPF, image). São Luís , Estrada do Tirirical , 2°31’47” S , 44°18’10” W , February-March 1939 (fr.), R.L. Fróes 11526 ( NY !) ; Sítio Andiroba , 07 August 1980 (st.), M.G. Silva 5693 ( MG !) ; Sítio Santa Eulália , 2°30’56” S , 44°16’37” W , 20 January 1988 (fl.), E. Barroso 47 ( SLUI !) ; 2°30’52” S , 44°16’34” W , 29 January 2018 (fr.), G.S. Amorim 417 ( MAR !) ; 2°30’52” S , 44°16’33” W , 26 February 2018 (fr.), G.S. Amorim 490 ( MAR !) . Additional specimen examined:— BRAZIL . Maranhão : São José de Ribamar , praia de Caúra , 13 January 2017 (fl.), G.S. Amorim 507 ( MAR !) .