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  1. Family: Linaceae DC. ex Perleb
    1. Genus: Linum L.
      1. Linum thunbergii Eckl. & Zeyh.

        This species is accepted, and its native range is Tanzania to S. Africa.

    [FTEA]

    Linaceae, Doreen L. Smith. Flora of Tropical East Africa. 1966

    Habit
    Erect or semiprocumbent herb up to 60 cm. high, perennial but may flower in first year.
    Stem
    Stem terete, obscurely longitudinally ridged, nearly always glabrous.
    Leaves
    Leaves opposite or whorled on lower part of stem, becoming alternate towards the inflorescence, variable in shape often on one plant, from broadly elliptic-ovate or lanceolate to linear, 10–25 mm. long, 1–5 mm. wide, entire, acute or mucronate.
    Stipules
    Stipules globose, small, brown, or absent.
    Inflorescences
    Inflorescence a many-flowered, lax or compact, monochasial or dichasial paniculate or corymbose cyme; bracts linear; pedicels 1–5 mm. long.
    Calyx
    Sepals 5, elliptic or ovate-elliptic, 2–4 mm. long, 1.5–2 mm. broad, with capitate-glandular denticulate margin; midrib prominent, extending to the acuminate or apiculate apex.
    Corolla
    Petals 5, obovate, usually retuse, yellow, pale yellow or rarely white.
    Stamens
    Stamens 5.
    Pistil
    Styles 5; stigmas capitate.
    Fruits
    Capsule globose, 2.5–3 mm. in diameter, as long as or just exceeding the persistent calyx when mature, light brown.
    Seeds
    Seeds flattened, 1–1.2 mm. long, smooth and shining, light brown.
    Habitat
    Upland grassland, in marshes, among rocks and by streams; 1750–2700 m.
    Distribution
    T3 T4 T7
    [FZ]

    Linaceae, N. K. B. Robson. Flora Zambesiaca 2:1. 1963

    Habit
    Herb 15–60 cm. high or sometimes higher, erect or suberect, perennial (or sometimes annual?), glabrous or very rarely with the lower leaves and parts of the stem sparsely pubescent.
    Stem
    Stems single or in groups, unbranched for most of their length or more rarely branched in the lower half, ridged above, becoming terete towards the base.
    Leaves
    Leaves opposite (rarely whorled) at the stern base, becoming alternate towards the inflorescence; lamina of average leaves 9–20 (25) × (1) 2–5 (6) mm., oblong-lanceolate to oblong-elliptic to linear (rarely oblanceolate), acute or mucronulate at the apex, with margin entire sometimes involute, those towards the stem base broader and often more obtuse or rounded at the apex, 1 (3)-nerved; stipular glands globose or ellipsoid, dark brown, sometimes absent.
    Inflorescences
    Inflorescence a lax monochasial or subdichasial paniculate or corymbose cyme, usually many-flowered; bracts small, linear; pedicels 1–2 mm. long, elongating in fruit.
    Flowers
    Flowers homostylic.
    Calyx
    Sepals 2–3 mm. long, elliptic to ovate-elliptic, acute to sharply acuminate, with the margin entire or, more usually, ciliate to glandular-dentate or glandular-ciliate, and the midrib extending to the apex.
    Corolla
    Petals chrome-yellow, sometimes tipped purplish-red in bud, 5–10 mm. long, obovate to obovate-oblanceolate, rounded or retuse at the apex.
    Stamens
    Stamens c. 3–4 mm. long, with filaments united in the lower quarter; anthers c. 0·5 mm. long, oblong; staminodial processes absent.
    Pistil
    Ovary c. 0·75 mm. long, ovoid-ellipsoid; styles c. 4 times as long as the ovary and just exceeding the stamens, free, linear; stigmas slightly capitate.
    Fruits
    Capsule about as long as the sepals, globose or depressed-globose, yellow-brown, sometimes purplish towards the apex.
    Seeds
    Seeds c. 1·2 mm. long, ellipsoid, plano-convex, reddish-brown to yellowish-brown, smooth, shining.

    Distribution

    Native to:

    Angola, Cape Provinces, Free State, KwaZulu-Natal, Malawi, Northern Provinces, Swaziland, Tanzania, Zambia, Zimbabwe

    Synonyms

    Other Data

    Linum thunbergii Eckl. & Zeyh. appears in other Kew resources:

    Bibliography

    First published in Enum. Pl. Afric. Austral.: 35 (1835)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Smith, D.L. (1966). Flora of Tropical East Africa, Linaceae: 1-11.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Brenan, J.P.M. (1970). Flora Zambesiaca 3(1): 1-153. Royal Botanic Gardens, Kew.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.

    Flora of Tropical East Africa

    • N. Robson in Flora Zambesiaca 2: 97, t. 10/A (1963).
    • Excell & Mendonça in Consp. Fl. Angol. 1: 242 (1951).
    • Eckl. & Zeyh., Enum. Pl. Afr. Austr. Extratrop.: 35 (1834–5), excl. syn.

    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

    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