1. Family: Balsaminaceae A.Rich.
    1. Genus: Impatiens Riv. ex L.
      1. Impatiens oreocallis Launert

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

    [FTEA]

    Balsaminaceae, C. Grey-Wilson. Flora of Tropical East Africa. 1993

    Habit
    Rather weak annual herb; stems simple or moderately branched, up to 50 cm. in length, usually less, ± erect to decumbent, sometimes rooting at the lower nodes, glabrous or thinly pilose on the youngest shoots.
    Leaves
    Leaves spirally arranged, or the upper sometimes in whorls of 3–4, sessile or with the lamina tapering gradually into a short 1–5(–8) mm. long petiole; lamina ovate-lanceolate, elliptic or oblanceolate, more rarely ± rhombic, (1.5–)1.8–9(–11) cm. long, 0.7–3(–4) cm. broad, apex acute, often shortly acuminate, the base attenuate, rarely cuneate, glabrous to sparsely pubescent above and below; lateral veins (3–)4–5 pairs; margin serrate with several 1–3 mm. long fimbriae towards the base.
    Flowers
    Flowers solitary or in fascicles of 2–3, pink or purplish.
    Bracts
    Bracts subulate, ± 2 mm. long, inconspicuous.
    Pedicel
    Pedicels 1.2–4(–5) cm. long, sparsely pilose or glabrous, slender.
    Calyx
    Lateral sepals lanceolate-triangular, 2.2–5(–7) mm. long, acute, pilose along the margin. Lower sepal shallowly and obliquely navicular. 4.5–7 mm. long, abruptly constricted into a 1.6–3.5 cm. long curved filiform spur, slightly thickened at the tip, thinly pilose along the lower edge of the sepal and sometimes along the lower half of the spur.
    Corolla
    Dorsal petal 5–9(–10) mm. long, 7–12 mm. broad (when flattened), dorsally narrowly crested, the crest terminating in a subacute point, glabrous or thinly pilose along the crest. Lateral united petals 8–18(–20) mm. long, the petals of each pair slightly overlapping or with a narrow sinus between them; upper petal obcordate, 6–15 mm. long, 4.5–14 mm. broad, the upper margin retuse or emarginate; lower petal oblong to oblong-obovate or elliptic, 8–16 mm. long, 5–8 mm. broad, obtuse.
    Ovary
    Ovary glabrous, or pilose in the central region.
    Fruits
    Fruit broadly-fusiform, ±12 mm. long, 5 mm. broad, with a short beak, glabrous or thinly pilose.
    Figures
    Fig. 2/25, p. 4.
    Habitat
    In humid, often shaded, places in upland rain-forest, banks, mossy rocks or the margins of streams and rivers; 1350–1700 m.
    Distribution
    T8
    [FZ]

    Balsaminaceae, E. Launert. Flora Zambesiaca 2:1. 1963

    Habit
    Delicate weak straggling (annual?) herb; stems decumbent or suberect, rooting at the nodes, red or green tinged with red, glabrous or somewhat pilose on very young parts only.
    Leaves
    Leaves spirally arranged, sessile or with the lamina tapering into a very short petiole; lamina (0·7) 1·5–3·5 (5·5) × (0·4) 0·7–1·8 (2·3) cm., ovate to ovate-lanceolate, rarely narrowly elliptic, membranous, glabrous or sparsely pilose, dark green on the upper surface, greyish or glaucous on the lower one, apex acute, margin serrate and ciliate towards the base, base cuneate (usually narrowly so); secondary nerves 5–8 pairs, ± prominent beneath.
    Flowers
    Flowers in few-flowered axillary fascicles, pinkish (details of colours not known); bracts up to 3 mm. long, triangular-subulate, acute, usually glabrous; pedicels (0·8) 1·2–2 (2·5) cm. long, very slender, pilose, sometimes glabrescent.
    Calyx
    Lateral sepals 2·2–3 (3·75) × 1–1·25 mm., lanceolate-triangular, acute, glabrous or pilose; posterior sepal 4·5–6 (7) mm. long, 1·4–1·8 mm. deep, shallowly and obliquely navicular, abruptly constricted into the spur, distally acute to subcaudate, apparently glabrous except for a row of long hairs on the keel-line; spur up to 20 mm. long, slender, slightly incurved, tapering towards the somewhat swollen end.
    Corolla
    Anterior petal 3·5–6 mm. high and 4·5–7 mm. broad (when flattened), helmet-shaped, dorsally narrowly cristate with the crest terminating in an acute point, glabrous. Lateral united petals 5–10 (13) mm. long, deeply 2-lobed, glabrous; lobes usually separated by a sinus, rarely overlapping; anterior lobe c. 0·8 × 0·6 mm., oblong-obovate; posterior lobe c. 4·8 × 5·6 mm., broadly obcuneate, always truncate and often slightly retuse at the upper margin (see t. 26 fig. 8).
    Ovary
    Ovary glabrous.
    Fruits
    Capsule up to 7 mm. long, fusiform, glabrous.
    Seeds
    Seeds numerous, c. 1·5 × 0·95 mm., obovate-oblong in outline, bright or reddish-brown, papillose.
    [FZ]

    Balsaminaceae, E. Launert. Flora Zambesiaca 2:1. 1963

    Habit
    Annual (?) herb; stems up to 50 cm. high or more, simple or sparsely branched, erect or ascending from a prostrate base, glabrous or somewhat pilose, on very young parts reddish or green.
    Leaves
    Leaves spirally arranged, sessile or very shortly petiolate; lamina (2·5) 3·5–9 (11) × (1) 1·5–3 (4) cm., obovate to broadly oblanceolate or elliptic or rarely obtusely rhombic, apex acute and usually acuminate, margin coarsely crenulate-denticulate or serrate, often sparsely long-ciliate towards the base, base usually narrowly cuneate, membranous, usually intense green on the upper, greyish-green on the lower surface, pilose (rarely glabrous) on both surfaces when young — often with an increasing density towards the base, older ones glabrescent but sometimes scattered pilose beneath (mainly on the nerves); secondary nerves 4–6 pairs.
    Flowers
    Flowers axillary, solitary or in bundles of 2 or 3, purplish (as far as known); bracts up to 5 mm. long, lanceolate-triangular or subulate, acute, usually pilose; pedicels 2·75–5 cm. long, slender, pilose (usually more densely so in the lower half), glabrous or glabrescent.
    Calyx
    Lateral sepals 5–7 × 1–1·25 mm., narrowly triangular, acute, usually long-pilose along the margins; posterior sepal c. 7 mm. long, 2·5–3·5 mm. deep, shallowly and obliquely navicular, abruptly constricted into the spur, distally acute to subcaudate, usually glabrous; spur up to 35 (40) mm. long, very slender, with the end bluntish or slightly thickened, glabrous or very sparsely pilose (when young), slightly incurved (sometimes twisted?).
    Corolla
    Anterior petal up to 10 mm. high, 10–14 mm. broad (when flattened), dorsally very narrowly cristate, the crest terminating in a subacute point, glabrous (?) or with a row of long multicellular hairs along the crest. Lateral united petals 17–20 mm. long, deeply 2-lobed the symmetrical axes of the lobes forming an angle of c. 90°, usually glabrous; anterior lobe c. 17 × 8 mm., transversely semi-elliptic, distally entire rounded, with the lower edge straight or slightly curved; posterior lobe 10–15 × 13–15 mm., obcuneate, with the upper margin retuse to emarginate and with a slender mucro in the sinus.
    Ovary
    Ovary glabrous.
    Fruits
    Capsule up to 18 mm. long, fusiform, glabrous.
    Seeds
    Seeds numerous, c. 2 × 1·2 mm., obovate in outline, reddish brown, with a densely papillose surface, glabrous.

    Images

    Distribution

    Native to:

    Malawi, Mozambique, Tanzania

    Impatiens oreocallis Launert appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1981 Philcox, D. [8509], Malawi K000285970
    Aug 2, 1980 Schafer, P.A. [6935], Mozambique K000285981
    Jan 1, 1979 Iwarsson, M. [812], Malawi K000285961
    Jan 1, 1979 Grosvenor, R. [926], Malawi K000285962
    Jan 1, 1975 Milne-Redhead, E. [8936], Tanzania K000285982
    Jan 1, 1975 Brummitt, R.K. [14349], Malawi K000285966
    Jan 1, 1974 Pope, G. [576], Mozambique K000285980
    Jan 1, 1973 Robson, N.K.B. [1287], Malawi K000285967 Unknown type material
    Jan 1, 1973 Robson, N.K.B. [1287], Malawi K000285968 Unknown type material
    Jan 1, 1973 Brummitt, R.K. [8866], Malawi K000285960
    Jan 1, 1973 Brummitt, R.K. [8866], Malawi K000285965
    Jan 1, 1964 Jackson, G. [2196], Malawi K000285964
    Tanzania 38678.000
    Robson, N.K.B. [1677], Malawi 25649.000
    Robson, N.K.B. [1287], Malawi 25650.000
    Brass, L.J. [16321], Malawi K000285969 holotype
    Brummitt, R.K. [8866], Malawi 25694.111
    Brummitt, R.K. [9835], Malawi K000285963
    Brummitt, R.K. [14845], Malawi K000285974
    Gassner, A. [132], Malawi K000285971
    Gassner, A. [132], Malawi K000285972
    Gassner, A. [202], Malawi K000285975
    Gassner, A. [202], Malawi K000285976
    Gassner, A. [195], Malawi K000285977
    Gassner, A. [195], Malawi K000285978
    Milne-Redhead, P [8936], Tanzania 38675.000
    Torre, A.R. [10807], Mozambique K000285979
    Mendonça, F.A. [2326], Malawi K000419541 isotype
    Johnston-Stewart, N.G.B. [11], Malawi K000285973
    Grosvenor, R. [1028], Malawi K000285959
    Timberlake, J. [5095], Mozambique K000613475

    First published in Bol. Soc. Brot., sér. 2, 36: 52 (1962)

    Accepted by

    • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.
    • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.
    Flora of Tropical East Africa
    • Grey-Wilson, Impat. Afr.: 124, fig. 67 (1980).
    • Launert in Flora Zambesiaca 2: 178, t. 26/5, 8 (1963).
    • Launert in Bol. Soc. Brot. sér. 2, 36: 52, t. 3 (1962)

    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

    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