1. Family: Santalaceae R.Br.
    1. Genus: Thesium L.
      1. Thesium myriocladum Baker ex A.W.Hill

        This species is accepted, and its native range is Zambia to N. Botswana.

    [FZ]

    Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

    Type
    Type:Zambia, Batoka Highlands, Kirk s.n. (K, holotype).
    Habit
    Perennial herb drying fuscous to dark reddish-brown, with a small woody caudex up to c. 20 mm in diameter crowned with many very short closely scaly shoots, sometimes with short woody stolons up to 6 mm in diameter; stems up to c. 300 mm long, 1.5–2.5 mm diameter at base, erect or decumbent, simple below but soon fastigiately well branched, branches irregularly cymose ascending at angle of c. 45°, ultimate branchlets often at 90°, very shallowly ribbed by decurrent scale leaves, sometimes very minutely scabridulous
    Leaves
    Leaves all reduced to scales, those at extreme base of stem up to 3 mm long, those subtending primary branches c. 2.5–6 × 0.8–1.2 mm, lanceolate to ovate-lanceolate, cuspidate, thick-textured, margins smooth to minutely ciliolate
    Flowers
    Flowers in irregular cymes, often 2 nude peduncles developing from the axil of a primary leaf (scale), one very short (c. 1–10 mm long), terminating in a flower, and developing no further, the other longer, terminating in a flower but soon overtopped by 2 shoots arising immediately or shortly below the terminal flower, one shoot either a nude peduncle terminating in a flower or more often a scaly shoot, either sterile and elongated, or with axillary buds developing into short scaly brachyblasts terminating in a flower, and then branching again from below the flower; more rarely, this type of shoot is developed directly from the primary leaf axil, but never exclusively on one stem
    Bracts
    Bracts c. 5 forming an involucre below the flower, 1.4–2 × 0.7–1 mm, ovate-cuspidate, margins ciliolate
    Pedicel
    Pedicels wanting
    Perianth
    Perianth “yellow-green”, “greenish-white”, “yellowish-white” or “white”; tube 0.5–1 mm long, ellipsoid external glands rather obscure; lobes 0.8–1.5 × 0.5–0.7 mm, oblong-lanceolate, subacute, hood c. 0.3–0.6 mm long, margins inflexed, slightly erose
    Stamens
    Stamens inserted at base of perianth lobes; filaments 0.2–0.5 mm long, almost hidden by anthers; anthers c. 0.4–0.8 mm long
    Style
    Style 0.5–1.5 mm long; stigma reaching tip of hood
    Fruits
    Fruit 2–3 × 2–2.5 mm, red-brown, strongly ribbed and reticulate.
    Ecology
    Grassland or woodland, sometimes on margins of dambos, but tolerating dry conditions; c. 900–1500 m.
    Note
    Thesium myriocladum is given a distinctive facies by the very short nude primary peduncles soon overtopped by much longer scaly shoots giving rise to innumerable very short brachyblasts (whence the very apt trivial name). These very short peduncles crowded along the main stems at once distinguish T. myriocladum from T. fastigiatum, with which it shares the character of very long scaly ultimate shoots. Closely allied to T. lopollense Hiern (1901) from Lopolo in Huíla Province of Angola, but that species differs slightly in aspect and has slightly larger fruits; also, the plants may be distinctly hairy at the base, best seen in specimen no. 1 of the holotype (BM). Specimens nos. 5 and 6 should be excluded as they do not match specimens nos. 1–4 on the sheet.
    Distribution
    Zimbabwe along the Zambezi near the Victoria Falls, and Botswana Zimbabwe Recorded from the western half of Zambia Zambia BOT N, ZAM B, ZAM W, ZAM C, ZIM W Botswana

    Images

    Distribution

    Native to:

    Botswana, Zambia, Zimbabwe

    Thesium myriocladum Baker ex A.W.Hill appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Kirk, J. [s.n.], Zambia K000431507 Unknown type material

    First published in Bull. Misc. Inform. Kew 1910: 186 (1910)

    Accepted by

    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.

    Literature

    Flora Zambesiaca
    • F.T.A. 6, 1: 430 (1911).
    • Bull. Misc. Inform., Kew 1910: 186 (1910).
    Kew Backbone Distributions
    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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