Fabaceae
Zollernia

Zollernia cowanii Mansano

First published in Brittonia 51: 155 (1999)
This species is accepted
The native range of this species is Brazil (Minas Gerais). It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

Vidal de Freitas Mansano, Ana Maria Goulart de Azevedo Tozzi, & Lewis, G. (2004). A Revision of the South American Genus Zollernia Wied-Neuw. & Nees (Leguminosae, Papilionoideae, Swartzieae). Kew Bulletin, 59(4), 497-520. doi:10.2307/4110905

Type
Brazil, Minas Gerais, Joanesia, Tameirdo Neto & Franfa 906 (holotype: BHCB!).
Morphology General Habit
Tree
Morphology Leaves Stipules
Stipules c. 11 x 1.6 mm, narrow falcate, glabrous, persistent; leaves with petiole c. 3.7 mm, glabrous; blade 10 - 15.3 x 4.9 - 5.2 cm, elliptic, margin entire, glabrous, base cuneate, apex acuminate, venation prominent beneath, secondary veins strongly ascending, straight
Morphology Reproductive morphology Inflorescences
Racemes aggregated into fascicles, 21 - 25.5 cm long, terminal, incurved, with more than 20 flowers per raceme, axis c. 2.5 mm diam., castaneous-puberulous; bracts 1.7 x 0.6 mm, subulate, pilose at the apex; bracteoles 1.4 x 0.5 mm, subulate, pilose at the apex, attached halfway along the pedicel; pedicel c. 6.7 x 0.7 mm, castaneous-puberulous; buds 11.2 x 3.5 mm, asymmetric-elliptic, apex acuminate, base acute, puberulous
Morphology Reproductive morphology Flowers
Calyx spathaceous, 1-lobed, chartaceous to membranaceous, glabrous at the base on inner face, and pilose at the apex; petals 5, subequal, claw c. 1.7 x 0.8 mm, blade c. 10 x 4.3 mm; stamens 10, filaments 2 x 0.3 mm, anthers 5.5 x 0.5 mm, sparsely pilose; gynoecium with stipe 1.8 mm long, tomentose, ovary 4.2 x 1.8 mm, tomentose, c. 8- ovulate, style 3.9 mm long, straight, glabrous
Morphology Reproductive morphology Fruits
Fruit globose, c. 2 x 1.6 cm, 1 - 3-seeded, oblong.
Distribution
Known only from the type locality in Joanesia, in a region called "Vale do Rio Doce", Minas Gerais
Ecology
Tropical forest
Phenology
Flowering and fruit initiation in November.
Note
Zollernia cowanii is characterised by having racemes longer than those of most other species of the genus. Z. magnifica also has long racemes but Z. cowanii differs in its fasciculate, terminal and incurved (vs. solitary, axillary, and straight) racemes, oval buds with an acute (vs. obtuse) base, and smaller ovaries.
[KBu]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/180258639/180258641

Conservation
CR - critically endangered
[IUCN]

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]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • IUCN Categories

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

  • World Checklist of Vascular plants (WCVP)

    • 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