1. Family: Myrtaceae Juss.
    1. Genus: Eugenia P.Micheli ex L.
      1. Eugenia magnisepala Bünger & Mazine

        This species is accepted, and its native range is Brazil (Bahia).


    de Oliveira Bünger, M., Mazine, F.F. & Stehmann, J.R. Kew Bull (2018) 73: 38. https://doi.org/10.1007/s12225-018-9760-7

    Type: Brazil, Bahia, Maracás, 13°28'S, 40°24'W, 15 Feb. 2004, (fl.) M. V. Moraes 600 (holotype BHCB 001912!; isotype HUEFS).
    Shrubs; young twigs glabrous
    Leaves petiolate, petioles 3.7 – 5.8 × 0.5 – 0.82 mm, canaliculate, pubescent; blades elliptic, 42 – 45 × 15.6 – 20.6 mm, membranaceous, discoloured, pubescent on both sides, glandular dots not visible on either side, apices acute; bases attenuate; margins flat or slightly revolute; midveins sulcate adaxially, raised abaxially; lateral veins c- 15 on each side, not visible on either side; marginal vein c- 0.8 mm from the margin
    Inflorescences auxotelic, pedicels 8.3 – 13.7 mm long, pubescent; bracteoles concealing the ovary deltate, 6.9 – 16.4 × 6.2 – 13.9 mm, apices acute, pubescent, not ciliate, persistent at anthesis
    Buds obpyriform 9.1 – 14 × 7.4 – 11.3 mm; calyx lobes 4, of equal size, elliptic, apices acute, 12.4 – 19.8 × 5.3 – 9.2 mm, pubescent, not ciliate; petals 4, 11 – 13.8 × 8.9 – 10.2 mm, glabrous, not ciliate; ovary 4.5 – 5.7 × 2 – 4 mm, tomentose, costate; style 9 – 12 mm long, staminal ring subquadrate
    Fruits not seen.
    Eugenia magnisepala is recognisable by its larger calyx lobes (12.4 – 19.8 mm long), membranaceous and smaller blades (42 – 45 mm long) and costate ovary. Eugenia itacarensis Mattos, E. macrobracteolata Mattos and E. regia Bünger & Sobral also have larger calyx lobes (more than 12 mm long), however they have larger (more than 50 mm long) and coriaceous blades and the ovary is not costate.

    Eugenia magnisepala is so named in recognition of its large calyx lobes.

    Eugenia magnisepala resembles morphologically similar populations of E. involucrata growing in dry areas and presenting smaller leaf blades. The new species has larger calyx lobes (12.4 – 19.8 mm long vs 7 – 15 × 3.3 – 4.9 mm long). Eugenia sect. Phyllocalyx species with larger calyx lobes are E. itacarensis, E. macrobracteolata and E. regia, but these species have significantly larger blades (more than 50 mm long vs 15 – 20 mm long in E. magnisepala). Another significant morphological trait is the costate ovary of E. magnisepala. Among Eugenia sect. Phyllocalyx species, only E. selloi has a costate ovary but this species is restricted to the restingas of Rio de Janeiro State and has smaller calyx lobes (3.4 – 4.2 mm long vs 12.4 – 19.8 mm long).

    Known only from the municipality of Maracás in Bahia (Brazil) (Map 1).
    About 9000 m a.s.l. in the central-southern region of Bahia, in the municipality of Maracás. This region is semi-arid with two rainy periods during the year. Caatinga vegetation is arboreal and shrubby although other types of vegetation such as Matas de Cipó (liana forests) are found in the region (IBGE 2016).
    Recent fieldwork attempted to recollect Eugenia magnisepala but only non-fertile material was found. The area of occurrence of E. magnisepala was observed to be surrounded by Eucalyptus plantations; there are no officially protected areas in the region. Eugenia magnisepala is considered Endangered (EN) under the IUCN (2016) conservation status criteria B1ab(iii). Criterion B1 recognises an extent of occurrence of less than 5,000 km2 (just one collected specimen), criterion “a”, occurrence in less than five localities (one locality) and “b(iii)”, a continuing decline in the area and quality of the habitat.
    Eugenia magnisepala flowers in February.


    Native to:

    Brazil Northeast

    Eugenia magnisepala Bünger & Mazine appears in other Kew resources:

    First published in Kew Bull. 73(3)-38: 2 (2018)


    Kew Bulletin
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    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Bulletin
    Kew Bulletin

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0