1. Family: Lamiaceae Martinov
    1. Genus: Callicarpa L.
      1. Callicarpa pseudoverticillata Bramley

        This species is accepted, and its native range is Sulawesi.

    [KBu]

    Bramley, G.L.C. 2012. Kew Bulletin 67: 213. https://doi.org/10.1007/s12225-012-9359-3

    Habit
    Treelet to small tree, up to 6 m (largest individual collected to date)
    Twigs
    Twigs with a dense indumentum of patent brown hairs, 2 – 3 mm long, branched at the base only or with small branches occurring along the length of the hair
    Leaves
    Leaves in pseudo-whorls of four, three leaves ± equal in size, the fourth much smaller; larger blades ± elliptic, rarely ovate, 9.5 – 19 × 4.5 – 8.5 cm, the fourth smaller blade ovate, 3 – 8.5 × 1.3 – 4.3 cm, in all blades the margins entire to minutely dentate, apex acuminate, base obtuse to rounded, upper surface with scattered erect simple hairs with thickened bases, these dense along the impressed venation, with peltate scales scattered over the surface but more regularly clustered around the base, lower surface with branched hairs and copious yellow sessile glands on the surface, darker brown and more densely branched hairs covering the venation, venation raised, also with scattered peltate scales more apparent near leaf base; petioles of larger leaves 1 – 1.5 cm, of the fourth smaller leaf 0.5 – 0.8 cm
    Inflorescences
    Inflorescence in the axils of each of the four leaves in a pseudowhorl, peduncles 1 – 4.5 cm
    Pedicel
    Pedicels 1 – 1.5 mm long
    Bracts
    Bracteoles linear, 1 – 7 mm long Bracts linear 7 – 15 mm long, indumentum as stems
    Calyx
    Calyx cupular, c. 2 mm long, with 5 – 6 (8) shallowly triangular lobes, outer surface densely covered with branched hairs, not dense enough to obscure the surface, yellow sessile glands and occasional peltate scales; inner surface glabrous
    Corolla
    Corolla purple, 6 – 7 mm long, divided into 5 – 6 lobes 1 – 2 mm long, outer surface with a few hairs and yellow sessile glands on the backs of the lobes, the lobe edges papillose, the remainder of the corolla tube glabrous, inner surface ± glabrous
    Stamens
    Stamens 5 – 6, filaments exserted c. 1 – 2 mm from corolla, anthers oblong c. 2 – 2.5 mm long, yellow sessile glands on the connective
    Stigma
    Stigma capitate, sometimes with three lobes obvious (as shown in Fig. 4)
    Fruits
    Fruit green maturing red or orange, 2 – 4 mm wide (on dry specimen), with scattered short branched hairs and copious yellow sessile glands, subtended by persistent calyx; 6 1-seeded pyrenes
    Distribution
    Sulawesi Selatan (Southern), area around Lake Matano and Lake Towuti. Maps 1 and 2.
    Ecology
    Ultramafic soils; disturbed Lithocarpus forest, alluvial flat, waterfront along lake and coastal forest: 400 – 500 m.
    Conservation
    Both the AOO (52.81 km2) and EOO (325.94 km2), point towards a preliminary conservation status of EN. Some of the area around Lake Matano forms part of the PT Inco open cast nickel mine (www.pt-inco.co.id); any expansion of this mine into the surrounding waterfront forest in which Callicarpa pseudoverticillata is found would pose a severe threat to its population. Callicarpa pseudoverticillata appears to occur only in ultramafic areas; these areas are where nickel and other elements such as iron are at a high concentration (Proctor 2003). Based on this, I suggest a preliminary conservation assessment of EN (B1bi,ii, iii; B2Bi,ii,iii).
    Note
    It is the ferruginous indumentum of Callicarpa pseudoverticillata that immediately catches the eye, although this is a character which this species shares with a number of others (e.g. C. havilandii; C. argentii; C. subaequalis Bramley, all endemic to Borneo, and some extreme forms of C. pentandra). However, it is the leaf arrangement that sets this species apart from the others in the genus: leaves are in pseudowhorls of four, three of them being more or less equal in size, and one being significantly smaller. The inflorescence is similar to the widespread and variable C. pentandra, especially the form of the corolla. However, although the corolla morphology is similar, the fruit of C. pseudoverticillata apparently has only six one-seeded pyrenes, rather than the typical eight or ten one-seeded pyrenes of C. pentandra. In addition, there is variation in the number of calyx lobes that does not always correspond with number of corolla lobes, or the number of anthers: for example, a calyx has been found with eight lobes but the associated corolla has only six lobes, and six stamens. The three-lobed stigma is also unusual. Callicarpa pseudoverticillata appears to inhabit ultramafic areas (Map 2). It would be interesting to ascertain whether this species acts as a hyperaccumulator of nickel as is the case with many other species that occur in ultramafic areas (Proctor 2003). The epithet ‘pseudoverticillata’ refers to the leaves of this species: they are arranged in pseudo-whorls.

    Distribution

    Native to:

    Sulawesi

    Callicarpa pseudoverticillata Bramley appears in other Kew resources:

    First published in Kew Bull. 67: 219 (2012)

    Literature

    Kew Bulletin
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    Sources

    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 Bulletin
    Kew Bulletin
    http://creativecommons.org/licenses/by-nc-sa/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