Convolvulaceae
Jacquemontia

Jacquemontia corymbulosa Benth.

First published in Bot. Voy. Sulphur: 137 (1845)
This species is accepted
The native range of this species is W. Ecuador to NW. Peru. It is a climbing herbaceous 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: not threatened. Confidence: confident
[AERP]

Wood, J.R.I., Clegg, R. Jacquemontia (Convolvulaceae) in Bolivia and Peru. Kew Bull 76, 375–420 (2021). DOI: https://doi.org/10.1007/s12225-021-09936-5

Type
Ecuador, Puna, Guayaquil, Sinclair s.n. (lectotype K-000613122, designated here).
Morphology General Habit
Twining herb with densely pubescent stems
Morphology Leaves
Leaves shortly petiolate (usually < 1 cm long), lamina 2 – 6 cm long, ovate, cordate, rounded and mucronate, velvety-tomentellous on both surfaces
Morphology Reproductive morphology Inflorescences
Inflorescence dense, subcapitate, pedunculate, densely pubescent; peduncles 2.5 – 8 cm, secondary peduncles 4 – 5 mm; pedicels very short; sepals narrowly ovate, acuminate, 3 – 5 × 1.5 – 3 mm, not accrescent; corolla c. 13 – 14 mm long, blue.
Distribution
Locally abundant in dry, coastal Ecuador especially around Guayaquil and north to Manabí but just extending south across the border into Peru, from where it is known from a single confirmed record. There has to be some doubt over the location of the Peruvian record as it is somewhat distant from the main population of Jacquemontia corymbulosa in Ecuador and the cited locality has been queried on the label suggesting that it might have been collected elsewhere.
Conservation
The single record would suggest that species should be categorised as Critically Endangered (CR) in Peru but nothing is known of the population so Data Deficient would be correct (DD). Jacquemontia corymbulosa is common in coastal Ecuador south of the equator.
[KBu]

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/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. 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 2026. 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