1. Family: Burseraceae Kunth
    1. Genus: Commiphora Jacq.
      1. Commiphora swynnertonii Burtt

        This species is accepted, and its native range is N. Kenya, Central Tanzania.

    [FTEA]

    Burseraceae, J.B. Gillett. Flora of Tropical East Africa. 1991

    Habit
    Spiny shrub or small tree up to 6 m. tall; outer bark of trunk brownish yellow peeling in large, strong, horizontal strips; exudate watery, slightly pear-scented; branches often pendulous so that their tips reach the ground; young twigs dark grey, spine-tipped with a floccose rufescent caducous indumentum when very young; a few short spines present.
    Leaves
    Leaves all simple, sessile or with a petiole up to 3 mm. long into which the base of the lamina gradually passes without any clear line of demarcation, densely pubescent when young, often with floccose rufescent hairs, glabrescent when old, elliptic-obovate, basally cuneate, apically rounded, with 11–16 small sharp teeth on each side, 13–45 mm. long, 7–20 mm. wide.
    Flowers
    Male flowers precocious or with the leaves, in dense clusters, sessile or almost so; calyx brown, glabrous or very sparsely pubescent, 1.5 mm. long including broadly triangular lobes 0.4 mm. long; petals dull yellow, glabrous, linear, widening slightly and reflexed towards the tip, ± 3 mm. long, 0.7–0.8 mm. wide; filaments 1.3 and 1 mm., anthers 0.7 and 0.5 mm. long.
    Male
    Male flowers precocious or with the leaves, in dense clusters, sessile or almost so; calyx brown, glabrous or very sparsely pubescent, 1.5 mm. long including broadly triangular lobes 0.4 mm. long; petals dull yellow, glabrous, linear, widening slightly and reflexed towards the tip, ± 3 mm. long, 0.7–0.8 mm. wide; filaments 1.3 and 1 mm., anthers 0.7 and 0.5 mm. long.
    Fruits
    Fruit sessile, 7.5–10 mm. long (including a 0.6–2 mm. beak) × 4.6–6 × (1–2 + 3–3.5) mm.; pericarp 2-valved; pseudaril thin, yellow, completely covering the stone which is smooth, has large apical pits and measures 5–6.7 × 3.5–4.3 × (1 + 2–3.5) mm.; sterile locule distally humped.
    Habitat
    Acacia, Commiphora bushland on sandy soil at base of granitic or basement complex mountains; 750–1100 m.; rainfall 250–550 mm.
    Distribution
    K1 T5 not known elsewhere

    Images

    Distribution

    Native to:

    Kenya, Tanzania

    Commiphora swynnertonii Burtt appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 7, 1981 Gillett, J.B. [12564], Kenya K000353477
    Dec 7, 1981 Gillett, J.B. [13443], Kenya K000353479
    Gillett, J.B. [12740], Kenya K000353476
    Burtt, B.D. [5438], Tanzania K000353482
    Burtt, B.D. [3827], Tanzania K000353484 Unknown type material
    Burtt, B.D. [3827], Tanzania K000353486
    Burtt, B.D. [3827], Tanzania K000353483 holotype
    Burtt, B.D. [1935], Tanzania K000959902
    Burtt, B.D. [1935], Tanzania K000353485
    Newman, J.L. [194], Tanzania K000353481

    First published in Bull. Misc. Inform. Kew 1935: 115 (1935)

    Accepted by

    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
    • Gillett, J.B. (1991). Flora of Tropical East Africa, Burseraceae: 1-94.

    Literature

    Flora of Tropical East Africa
    • Beentje in Utafiti 1: 79, fig. (1988).
    • Dale & Greenway, Kenya Trees and Shrubs p. 92 (1961).
    • J.P.M. Brenan, Check-lists of the Forest Trees and Shrubs of the British Empire no. 5, part II, Tanganyika Territory p. 80 (1949).
    • B.D. Burtt in Bulletin of Miscellaneous Information, Kew 1935: 115 (1935).

    Sources

    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 2020. 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 2020. 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