Boraginaceae

Coldenia L.

First published in Sp. Pl.: 125 (1753)
This genus is accepted
The native range of this genus is Tropical & Subtropical Old World.

Descriptions

Boraginaceae, B. Verdcourt. Flora of Tropical East Africa. 1991

Morphology General Habit
Procumbent herb with slender branched stems, often with adventitious roots
Morphology Leaves
Leaves alternate, small, numerous, crenate, subsessile or petiolate
Morphology Reproductive morphology Flowers
Flowers solitary, extra- axillary, 4-merous
Morphology Reproductive morphology Flowers Calyx
Calyx deeply lobed
Morphology Reproductive morphology Flowers Corolla
Corolla small; tube cylindrical, the throat naked; lobes spreading
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, inserted in the tube, included
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-locular, each locule with 2 ovules or with 4, 1-ovuled locules; styles 2, terminal, partly joined at the base; stigmas scarcely differentiated
Morphology Reproductive morphology Fruits
Fruits dry, ovoid-conic, 4-lobed, eventually dividing into 4, 1-seeded nutlets, joined amongst themselves or attached to a central prolongation of the receptacle
Morphology Reproductive morphology Seeds
Seeds ovoid.
[FTEA]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Prostrate annual herb
Morphology Leaves
Leaves alternate, crenate or lobate
Morphology Reproductive morphology Flowers
Flowers bisexual, regular, solitary, extra-axillary, subsessile
Morphology Reproductive morphology Flowers Calyx
Calyx deeply 4-lobed
Morphology Reproductive morphology Flowers Corolla
Corolla-tube cylindrical; lobes 4, spreading
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, inserted on corolla-tube, included
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 4-celled with 1 pendulous ovule in each cell; styles 2, terminal, united at the base; stigma minute
Morphology Reproductive morphology Fruits
Fruit dry, 4-lobed, finally splitting into 4 1-seeded nutlets.
Distribution
A single species in the Old World tropics.
[FSOM]

Boraginaceae, E. S. Martins (Trichodesma by R. K. Brummit). Flora Zambesiaca 7:4. 1990

Morphology General Habit
Herbs with usually procumbent branched stems.
Morphology Leaves
Leaves alternate, usually numerous, crenate or lobate, subsessile or petiolate.
Morphology Reproductive morphology Flowers
Flowers 4-merous, solitary, extra-axillary, the upper ones in leafy spicate branches.
Morphology Reproductive morphology Flowers Calyx
Calyx deeply lobed.
Morphology Reproductive morphology Flowers Corolla
Corolla actinomorphic, small, naked.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inserted below the middle of the corolla tube, included.
Morphology Reproductive morphology Flowers Nectaries
Nectary absent.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 4-celled with 1 ovule pendulous in each cell.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Styles 2, slightly united below, terminal; stigmas punctate.
Morphology Reproductive morphology Fruits
Fruit dry or slightly succulent, ± ovoid-pyramidal, 4-lobed, usually separating into 4, 1-seeded nutlets.
Morphology Reproductive morphology Seeds
Seeds ovoid.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Somalia

    • Flora of Somalia
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. 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 Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. 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