1. Family: Buxaceae Dumort.
    1. Genus: Buxus L.
      1. Buxus nyasica Hutch.

        This species is accepted, and its native range is S. Malawi.

    [FZ]

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

    Type
    Type:Malawi, Mt. Mulanje (Mlanje), 1894, Scott-Elliot 8603 (B†, holotype; BM; K, drawing of holotype).
    Flowers
    Male inflorescences with shorter axis than female, with 2–3 pairs of decussate scale-like bracts; male flowers apparently all terminal; perianth 4-merous; stamens 4, with sessile or subsessile anthers, 2–3 mm long; no pistillode present
    Inflorescences
    Female inflorescences consist of a 3–5 mm long axis with 4–6 pairs of decussate scale-like bracts with prominent midvein, c. 3 × 2 mm, and one terminal female flower, at anthesis with perianth and ovary almost completely enclosed by upper bracts; protruding stigmas c. 3 mm long Inflorescences (only very few seen) unisexual, axillary or slightly above leaf-insertion Inflorescences (only very few seen) unisexual, axillary or slightly above leaf-insertion. Male inflorescences with shorter axis than female, with 2–3 pairs of decussate scale-like bracts; male flowers apparently all terminal; perianth 4-merous; stamens 4, with sessile or subsessile anthers, 2–3 mm long; no pistillode present. Female inflorescences consist of a 3–5 mm long axis with 4–6 pairs of decussate scale-like bracts with prominent midvein, c. 3 × 2 mm, and one terminal female flower, at anthesis with perianth and ovary almost completely enclosed by upper bracts; protruding stigmas c. 3 mm long.
    Fruits
    Mature fruits brown,7–10 × 6–8 mm, turbinate, excluding the three c. 8 mm long persisting style bases, with faintly verrucose exocarp and detaching endocarp Mature fruits brown,7–10 × 6–8 mm, turbinate, excluding the three c. 8 mm long persisting style bases, with faintly verrucose exocarp and detaching endocarp.
    Ecology
    In understorey of mid-altitude forest; 1200–1500 m.
    Distribution
    Not known elsewhere. MAL S Malawi
    Habit
    Shrub or small tree, up to at least 8 m high; twigs with yellow-green fissured bark and alternate lines running down from each petiole, internodes 3–5 cm long, some scale-like bracts often present above the leaves on the younger stems, perhaps from rudimentary inflorescences. Shrub or small tree, up to at least 8 m high; twigs with yellow-green fissured bark and alternate lines running down from each petiole, internodes 3–5 cm long, some scale-like bracts often present above the leaves on the younger stems, perhaps from rudimentary inflorescences
    Leaves
    Mature leaves opposite; petiole not markedly thickened, at most c. 1 mm long; lamina 3.5–7 × 0.8–2.4 cm, ovate to lanceolate, base narrowly and long cuneate, apex long acuminate, shiny or dull above, dull beneath, midvein prominent on both sides, but especially beneath, with 30–40 fine, sometimes rather irregularly sinuous lateral veins; tertiary veins form a scalariform or irregular reticulation between the lateral veins; a thin, but usually clearly visible submarginal vein present along the entire lamina. Juvenile individuals with very closely set linear leaves, c. 2.5 × 0.2 cm Mature leaves opposite; petiole not markedly thickened, at most c. 1 mm long; lamina 3.5–7 × 0.8–2.4 cm, ovate to lanceolate, base narrowly and long cuneate, apex long acuminate, shiny or dull above, dull beneath, midvein prominent on both sides, but especially beneath, with 30–40 fine, sometimes rather irregularly sinuous lateral veins; tertiary veins form a scalariform or irregular reticulation between the lateral veins; a thin, but usually clearly visible submarginal vein present along the entire lamina
    Note
    Juvenile individuals with very closely set linear leaves, c. 2.5 × 0.2 cm. B. nyasica resembles certain forms of B. madagascarica Baill. in general habit and leaf morphology. It is particularly similar to one specimen of B. madagascarica from the Plateau d’Ankara, a karst landscape west of the River Ikopa and Bonia in the Majunga Province of north western Madagascar, where the vegetation is dominated by deciduous forest (forêts tropophiles); this specimen was named B. madagascarica subsp. tropophila H. Perrier in Fl. Madagascar, fam. 113, Buxacées: 4 (1952) nom. inval. (published without Latin diagnosis). In spite of this similarity, B. nyasica seems, as far as can be ascertained from the relatively small amount of material available, to lack the wide range of variation in leaf morphology of B. madagascarica, and the male inflorescences of B. madagascarica are stated to have more than one male flower in each, whereas B. nyasica seems to have always only one terminal male flower per inflorescence. B. madagascarica is restricted to Madagascar, where it is said to occur in all the major floristic regions. The taxonomy of B. madagascarica and B. nyasica needs further study when more material is available.
    Male
    Male inflorescences with shorter axis than female, with 2–3 pairs of decussate scale-like bracts; male flowers apparently all terminal; perianth 4-merous; stamens 4, with sessile or subsessile anthers, 2–3 mm long; no pistillode present.
    Female
    Female inflorescences consist of a 3–5 mm long axis with 4–6 pairs of decussate scale-like bracts with prominent midvein, c. 3 × 2 mm, and one terminal female flower, at anthesis with perianth and ovary almost completely enclosed by upper bracts; protruding stigmas c. 3 mm long.
    Seeds
    Seeds dark brown, slightly curved, c. 5 × 2 × 2 mm. Seeds dark brown, slightly curved, c. 5 × 2 × 2 mm.

    Images

    Distribution

    Buxus nyasica Hutch. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1990 Cholocholo, A. [32], Malawi K000318516
    Feb 23, 1911 Ellio, G.S. [8603], Malawi K000318545

    First published in Bull. Misc. Inform. Kew 1912: 55 (1912)

    Accepted by

    • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.
    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Flora Zambesiaca
    • White, Dowsett-Lemaire & Chapman, Evergr. For. Fl. Malawi: 177, fig. 46D, E (2001). TAB. 53.
    • Bull. Jard. Bot. État. 60: 87–88 (1990).
    • Kew Bull. 44: 298 (1989).
    • Bull. Misc. Inform., Kew 1912: 55 (1912)
    • F.T.A. 6, 1: 609 (1912).
    Kew Backbone Distributions
    • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. 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 2018. 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 2018. 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