1. Family: Malvaceae Juss.
    1. Genus: Dombeya Cav.
      1. Dombeya acutangula Cav.

        This species is accepted, and its native range is Tanzania to S. Tropical Africa, W. Indian Ocean.

    [FTEA]

    Sterculiaceae, Martin Cheek & Laurence Dorr; Nesogordonia, Laurence Dorr, Lisa Barnett. Flora of Tropical East Africa. 2007

    Type
    Type: Reunion, Commerson (P-JU, holo.)
    Habit
    Small tree or shrub 2–3(–8)m tall; stems pubescent, tomentose or glabrescent, hairs simple, stellate, and minute, subsessile-glandular
    Leaves
    Leaves ovate to broadly ovate, 6–20 cm long, 5–13(–17) cm wide, dimorphic; juvenile leaves deeply 5–9lobed; adult leaves shallowly 3–5-lobed/angled or unlobed, apex acuminate, margin dentate or crenate-serrate, base truncate to shallowly cordate, upper surface scabridulous, lower surface softly pubescent to tomentose rarely subglabrous; petiole 2–13 cm long; stipules obliquely lanceolate, 0.5–1.5 cm long, 0.15–0.7 cm wide
    Inflorescences
    Inflorescence axillary, 5–16 cm long, dichotomously cincinnate, manyflowered; peduncle 3.7–12.5 cm long, tomentose or densely pubescent, peduncle bracts absent; branches 2.2–9.4 cm long, unbranched, slender; pedicels distichous, 0.7–1.9 cm long; epicalyx bracts at base of calyx tube, rarely on it, dimorphic: the largest broadly ovate or suborbicular, apex rounded or obtuse, base cordate to auriculate, sessile, the two smaller bracts 0.5–0.9 cm long, 0.3–0.5 cm wide, base stipulate
    Calyx
    Calyx lobes reflexed, lanceolate, 0.7–0.8 cm by 0.2–0.3 cm, acuminate, appressed-tomentose outside
    Corolla
    Petals spreading wide, white, 1–1.9 cm long, 0.5–1.8 cm wide; androecium 0.6–1 cm long
    Stamens
    Staminal tube widening towards apex, 0.1–0.2 cm long; staminodes 0.6–0.8 cm long; longest stamen 0.3–0.8 cm; anthers 0.15–0.3 cm long, apiculate
    Ovary
    Ovary globose, tomentose, style ± 0.75 cm long, 5-branched, glabrous
    Fruits
    Capsule subwoody, oblate, 0.4–0.6 cm diameter, 5-ribbed or 5-winged, tomentose; seeds 1.2 × 0.8 mm, dark brown
    Figures
    Fig 11: 3, p. 61.
    Ecology
    Forest, woodland, bushland or thicket; 0–1500 m
    Conservation
    A widespread and common species, here assessed as of Least Concern for conservation. The assessment of this species as critically endangered (Tezoo, V. & Strahm, W. 2000. Dombeya acutangula. In: IUCN 2004. 2004 IUCN Red List of Threatened Species) is erroneous since based on the assumption that the taxon is confined to Mauritius.
    Distribution
    Flora districts: T2 T3 T4 T5 T6 T7 T8 Z Range: Zambia, Malawi, Mozambique Range: Madagascar, Mascarene Islands
    [FZ]

    Sterculiaceae, H. Wild. Flora Zambesiaca 1:2. 1961

    Habit
    Shrub or small tree up to c. 6 m. tall; young branches softly tomentose, eventually glabrescent.
    Leaves
    Leaf-lamina 7–19 × 4–13 cm., ovate to broadly ovate, mostly angled or 3-lobed, apex acuminate, base cordate 5–7-nerved, pubescent on both surfaces but more densely so or tomentose below, nerves prominent below; petiole up to 12 cm. long, pubescent; stipules c. 1·5 cm. long, very caducous, subulate to lanceolate, thinly tomentose.
    Flowers
    Flowers white, in markedly cincinnate many-flowered axillary inflorescences (the peduncle bearing at its apex 1–2 axes which are curled backwards in bud and on which the flowers are arranged racemosely and towards one side); peduncle up to 12 cm. long, tomentose; pedicels up to 1·5 cm. long, tomentose; bracts c. 8 × 7 mm., overlapping, in two rows, hiding the young buds, falling before the flowers open, ovate to orbicular, rounded or acute at the apex, tomentose.
    Calyx
    Calyx-lobes c. 1 × 0·3 cm., lanceolate-acuminate, tomentose outside.
    Corolla
    Petals c. 1·2 × 1 cm., obliquely obovate.
    Androecium
    Stamens united below in a tube c. 1·5 mm. long; staminodes c. 7 mm. long, linear.
    Pistil
    Ovary globose, tomentose; loculi glabrous within; ovules 2 per loculus; style c. 7 mm. long, glabrous; stigmas recurved.
    Fruits
    Capsule up to 6 mm. in diam., depressed-globose, tomentose.
    Seeds
    Seeds c. 1 × 0·6 mm., brown, trigonous.

    Images

    Distribution

    Native to:

    Laos, Madagascar, Malawi, Mauritius, Mozambique, Rodrigues, Réunion, Tanzania, Zambia

    Introduced into:

    Haiti, Thailand

    Dombeya acutangula Cav. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2011 Mwangoka, M.A. [4299], Tanzania K000545848
    Aug 1, 1982 Holst, C. [2204] K000240989 Unknown type material
    Aug 1, 1982 illegible [898] K000240992
    Boivin, M. [1353], Madagascar K000241184
    s.coll. [Cat. no. 1158] Dombeya angulata K001112258
    s.coll. [Cat. no. 1158] Dombeya angulata K001112259
    s.coll. [Cat. no. 1158] Dombeya angulata K001112260
    s.coll. [Cat. no. 1158] Dombeya angulata K001112261
    s.coll. [Cat. no. 1159], India Dombeya palmata K000639526
    s.coll. [Cat. no. 1159] Dombeya palmata K001112262
    s.coll. [Cat. no. 1159] Dombeya palmata K001112263
    Jan 1, 1956 Humbert, H. [I3340], Madagascar Dombeya triumfettifolia K000241164
    Boutin [s.n.], Madagascar Dombeya triumfettifolia K000241165

    First published in Diss. 3: 123 (1787)

    Accepted by

    • Cheek, M. & Dorr, L. (2007). Flora of Tropical East Africa, Sterculiaceae: 1-134.
    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
    • Bosser, J. & al. (eds.) (1987). Flore des Mascareignes 51-62: 1. IRD Éditions, MSIRI, RBG-Kew, Paris.

    Literature

    Kew Backbone Distributions
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    Flora of Tropical East Africa
    • Dombeya in Africa: 59 (1991).
    • Seyani, Dombeya: 84 (1982)
    • Diss. Bot. 3: 123, t. 38, f. 2 (1787)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    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 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 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