Jupunba villosa (Iganci & M.P.Lima) M.V.B.Soares, M.P.Morim & Iganci

First published in Bot. J. Linn. Soc. 196: 476 (2021)
This species is accepted
The native range of this species is SE. Brazil. It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Iganci, J.R.V. & Morim, M.P. 2009. Three new species of Abarema (Leguminosae, Mimosoideae) from south-eastern Brazil. Kew Bulletin 64: 271. DOI: https://doi.org/10.1007/s12225-009-9110-x

Type
Brazil, Minas Gerais, Novo Cruzeiro, estrada para Fazenda Araras, J. R. Stehmann, R. C. Mota, P. O. Morais & G. S. França 3671 (holotypus BHCB).
Morphology General Habit
Trees and shrubs 1.5 – 4 m tall
Morphology Branches
Branches with a villous indumentum
Morphology Leaves Stipules
Stipules 1 mm, deciduous, linear, villous
Morphology Leaves
Leaves with (1 – 2 –) 3 (– 5) pairs of pinnae; rachis 4 – 10 cm, villous, canaliculate; petiole (1.5) 3 (5.5) cm, cylindrical, villous; extrafloral nectaries borne between all the pairs of pinnae and leaflets, patelliform; pinnae (2 – 4 –) 5 (– 6 – 8) jugate; leaflets sessile, chartaceous, 3 – 6 × 1.2 – 2.9 cm, asymmetric, lanceolate, apices acute, bases asymmetric; adaxial surface glabrous except on the primary nerve; abaxial surface villous; slightly discolorous, margins recurved, villous; venation brochidodromous, primary nerve subcentral
Morphology Reproductive morphology Inflorescences
Racemes homomorphic, short, axillary, condensed; the rachis cylindrical, 0.5 – 1 cm, villous; peduncle 3 – 7 cm
Morphology Reproductive morphology Inflorescences Bracts
Floral bract 1 – 2 mm, linear, deciduous
Morphology Reproductive morphology Flowers
Flowers 5-merous, basal ones pedicellate 1 – 1.5 mm, apical ones subsessile; calyx 2 – 3 × 2 – 3 mm, campanulate, pubescent; corolla 6 × 3 mm, campanulate, sericeous
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3 cm, staminal tube enclosed in the corolla, free parts exserted 2.4 cm beyond the corolla, anthers with rimose aperture; ovary pilose, 1.5 mm, truncate at the apex, ovules 10 – 16, style 3.4 cm, stigma punctiform
Morphology Reproductive morphology Fruits
Pods with spirally curved valves, 8 – 18 cm long, chartaceous, epicarp brown, glabrous, densely reticulate, endocarp light brown, with brown-orange oblique impressions
Morphology Reproductive morphology Seeds
Seeds 3 – 16 per pod; 7 – 8 × 5 – 7 cm, bicoloured, white and blue, lentiform to globose, pleurogram closed; embryo with a developed plumule
Distribution
Brazil: Espírito Santo, Minas Gerais and Rio de Janeiro.
Ecology
Semi-deciduous forest and ombrophilous dense forest.
Conservation
Vulnerable (VU). After exhaustive work on herbarium collections and field expeditions, we discovered that Abarema villosa occurs in places of potential ore exploration in Minas Gerais state and is subject to the effects of these human activities. This species also occurs in small populations from Rio de Janeiro and Espírito Santo states. Only a few mature individuals are known and the species is therefore considered to be facing a high risk of extinction in the wild.
Note
The species epithet refers to the conspicuous villous indumentum of the leaflets and branches. This new species is similar to Abarema brachystachya, but differs in the villous abaxial leaflet surface, pilose and truncate ovary. Abarema villosa occurs in southeast Brazil, in Minas Gerais, Espírito Santo and Rio de Janeiro. A. brachystachya is more widely distributed than A. villosa, extending from the coastal Atlantic Forest of Bahia, Espírito Santo, Minas Gerais, Rio de Janeiro, São Paulo, Paraná and Santa Catarina.
[KBu]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/177828133/177828135

Conservation
LC - least concern
[IUCN]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Bulletin

    • Kew Bulletin
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0