Compilation
Keetia venosa

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Name

Identification
Canthium sylvaticum Hiern [family RUBIACEAE ] Keetia venosa (Oliv.) Bridson [family RUBIACEAE ] (stored under name); Verified by Bridson,D.,
Related name
  • Canthium myrianthum
  • Keetia venosa
  • Plectronia stipulata
  • Canthium sylvaticum
  • Plectronia myriantha
  • Canthium barteri
  • Canthium sphaerocarpum
  • Plectronia venosa
  • Plectronia barteri
  • Plectronia cuspidi-stipulata
  • Canthium venosum
  • Canthium discolor
  • Plectronia dundusanensis
  • Plectronia reygaertii
Common name
  • koka (NWT; JMD) nyengalεi (JMD) nyengili (JMD) (SIERRA LEONE, MENDE), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • wobe (NWT) (SIERRA LEONE, YALUNKA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • korogara (def. -rai) (NWT) nadga (NWT) (SIERRA LEONE, LOKO), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • uparεse (NWT) (SIERRA LEONE, LIMBA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • kalalay (Aub.) (GUINEA, MANDING-MANINKA), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4
  • ndaka (Aub.) (GUINEA, FULA-PULAAR (Guinea)), Burkill, H.M. 1985. The useful plants of west tropical Africa, Vol. 4

Flora

Entry for Keetia venosa Oliv. Bridson [family RUBIACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 5, Part 2, (1998) Author: D. Bridson
Names
Plectronia stipulata De Wild. [family RUBIACEAE], in Pl. Nov. Herb. Horti. Then. 1: 171, t. 38 (1905). Type: Mozambique, Morrumbala Forest, Luja 430 (BR, holotype).
Plectronia myriantha K. Krause [family RUBIACEAE], in Mildbraed, Wiss. Ergebn. Deutsch. Zentr.-Afrika Exped., Bot., part 4: 327 (1911), non Schltr. & K. Krause 1908. Type from Zaire (Dem. Rep. Congo)/Uganda.
Plectronia vanderysti De Wild. [family RUBIACEAE], in Bull. Jard. Bot. État 5: 31 (1915). Types from Zaire (Dem. Rep. Congo).
Plectronia dundusanensis De Wild. [family RUBIACEAE], Pl. Bequaert. 3: 183 (1925). Types from Zaire (Dem. Rep. Congo).
Plectronia reygaerti De Wild. [family RUBIACEAE], Pl. Bequaert. 3: 195 (1925). Types from Zaire (Dem. Rep. Congo).
Keetia transvaalensis [family RUBIACEAE], sensu E. Phillips in Bothalia 2: 369 (1927), pro parte, quoad Schlechter 12290, non sensu stricto.
Canthium gueinzii [family RUBIACEAE], sensu Hepper in F.W.T.A. ed. 2, 2: 184 (1963), pro parte.
Canthium zanzibaricum [family RUBIACEAE], sensu Hepper in F.W.T.A. ed. 2, 2: 184 (1963), pro parte.
Keetia venosa Oliv. Bridson [family RUBIACEAE], in Kew Bull. 41: 974 (1986). —K. Coates Palgrave, Trees Southern Africa, ed. 3, rev.: 16k of appendix (1988). —Bridson in F.T.E.A., Rubiaceae: 914 (1991). —Beentje, Kenya Trees, Shrubs Lianas: 518 (1994). Type from Uganda.
Plectronia venosa Oliv. [family RUBIACEAE], in Trans. Linn. Soc., London 29: 85, t. 49 (1873). —K. Schumann in Engler, Pflanzenw. Ost-Afrikas C: 386 (1895). —De Wildeman, Pl. Bequaert. 3: 200 (1925).
Canthium venosum Oliv. Hiern [family RUBIACEAE], in F.T.A. 3: 144 (1877). —Bullock in Bull. Misc. Inform., Kew 1932: 371, fig. 1 (1932). —Brenan, Check-list For. Trees Shrubs Tang. Terr.: 487 (1949). —J.G. Garcia in Mem. Junta Invest. Ultramar 6 (sér. 2): 29 (1959) [Contrib. Conhec. Fl. Moçamb. IV (1959)]. —Dale & Greenway, Kenya Trees & Shrubs: 433 (1961). —F. White, F.F.N.R.: 403 (1962). —Hepper in F.W.T.A. ed. 2, 2: 184 (1963), pro parte. —Drummond in Kirkia 10: 276 (1975). —K. Coates Palgrave, Trees Southern Africa, ed. 3, rev.: 887 (1988). —Bridson & Troupin in Fl. Pl. Lign. Rwanda: 552, fig. 184.3 (1982); in Fl. Rwanda 3: 150, fig. 45.3 (1985).
Plectronia cuspido-stipulata K. Schum. ex Engler [family RUBIACEAE], in Abh. Preuss. Akad. Wiss.: 53 (1894), nomen, based on Holst 2426.
Plectronia hispida [family RUBIACEAE], sensu K. Schum. in Engler, Pflanzenw. Ost-Afrikas C: 386 (1895), pro parte, quoad syn. P. cuspido-stipulata, non (Benth.) K. Schum.
Canthium sylvaticum Hiern [family RUBIACEAE], Cat. Afr. Pl. Welw. 1: 477 (1898). —Bullock in Bull. Misc. Inform., Kew 1932: 369 (1932), pro parte. —Brenan, Check-list For. Trees Shrubs Tang. Terr.: 487 (1949), pro parte. Type from Angola.
Plectronia sylvatica Hiern K. Schum. [family RUBIACEAE], in Just’s Bot. Jahresber., 26th year, part 1: 393 (1900).
Plectronia barteri Hiern De Wild. [family RUBIACEAE], in Ann. Mus. Congo, Sér. II, Bot. 1, 2: 33 (1900).
Canthium dundusanense De Wild. Evrard [family RUBIACEAE], in Bull. Jard. Bot. État 37: 457 (1967).
Canthium sp. c [family RUBIACEAE], of Bridson & Troupin in Fl. Pl. Lign. Rwanda: 554, fig. 185.2 (1982).
Canthium venosum var. pubescens Hiern [family RUBIACEAE], in F.T.A. 3: 144 (1877). Type from Nigeria.
Canthium barteri Hiern [family RUBIACEAE], in F.T.A. 3: 143 (1877). Type from Nigeria.
Information
Scandent shrub or climber 2–7 m tall; young branches sparsely to densely covered with rusty-coloured hairs.Leaf blades 4.5–14 × 2.5–6(8) cm, oblong-elliptic or narrowly to broadly elliptic rarely round, acuminate at apex, obtuse to rounded or rarely subcordate at base, glabrous or rarely glabrescent on upper surface, glabrous save for the sparsely to densely pubescent nerves, or occasionally sparsely pubescent beneath; lateral nerves in 5–9 main pairs; tertiary venation finely reticulate, always with element perpendicular to midrib the more conspicuous giving a scalariform appearance and frequently either raised or impressed above; domatia present as inconspicuous tufts of hair; petioles 5–15 mm long, pubescent; stipules 5–14(17) mm long, up to 5 mm wide at base, triangular at base, usually rather abruptly narrowing to a linear or acuminate apex, pubescent outside; leaves subtending lateral branches smaller, ± orbicular.Flowers 4–5(6)-merous, borne in 20–70-flowered pedunculate cymes; peduncles 5–17 mm long, pubescent or rarely glabrous; pedicels 2–5 mm long, pubescent or rarely glabrous; bracteoles 2.5–6 mm long, linear-lanceolate.Calyx tube 0.75–1 mm long, glabrous or pubescent; limb 0.75–1.25 mm long, divided into teeth usually for less than half its length, ciliate.Corolla creamy-white; tube 2.25–3 mm long, with a ring of deflexed hairs just below the throat inside; lobes 1.5–2.25 × 1–1.75 mm, lanceolate to ovate, acute.Anthers fully exserted but seldom reflexing.Style 4–6.5 mm long, glabrous; pollen presenter 0.75–1.25 mm long; disk pubescent.Fruit 8–11 × 11–15 mm, slightly indented at apex, glabrous, black when mature.Pyrene 6–7 × 5–6 mm, hemispherical to suborbicular, with lid-like area lying across the apex with a small crest.Seed with endosperm streaked with granules.
Habitat
In evergreen forest understorey, swamp forest (mushitu) and riverine vegetation, in mixed deciduous woodlands on Kalahari Sand and in miombo woodlands often on termitaria, on sandy soils
Range
West Tropical Africa
Altitude range
50–1525 m.
1525
50
Distribution
Mozambique M Maputo, corolla fallen 1908, Sim 20860 (PRE).Mozambique MS Sofala Prov., Inhansato, region of Inhaminga, fl. 13.iii.1955, Gomes e Sousa 4286 (COI; K).Mozambique Z Milange, fl. 24.ii.1943, Torre 4831 (LISC).Malawi S Mulanje Distr., Likhubula River, above Likhubula House, west side of Mt. Mulanje, fl. 6.v.1980, Blackmore & Brummitt 1467 (K).Zambia S Pemba, fl. 1933, Trapnell 1303 (K).Zambia C Kamaila Forest Reserve, 40 km north of Lusaka, fr. 12.ix.1963, Angus 3735 (FHO; K); Luangwa Valley, Mutinondo Stream, Muchinga Escarpment, corolla fallen 23.viii.1966, Astle 4975 (K).Zambia W Ndola, fr. 8.xii.1953, Fanshawe 556 (K).Zambia N Chinsali Distr., near Great North Road, 48 km north of Mpika, fr. 28.xi.1952, White 3763 (FHO; K).Mozambique N between Mocimboa da Praia and Diaca, c. 20 km from Mocimboa da Praia, fl. bud 25.iii.1961, Gomes e Sousa 4666 (COI; K; PRE).Malawi N Nkhata Bay Distr., border of Chombe Tea Estate near Mweza Village, fl. 13.iv.1960, Adlard 337 (K; LISC; SRGH).Zimbabwe E Chirinda Forest, fl. & fr. 18.x.1947, Wild 2026 (K; SRGH).Zambia B Kabompo Distr., 59 km WSW of Kabompo on Zambezi (Balovale) road, fl. bud 24.iii.1961, Drummond & Rutherford-Smith 7305 (K; LISC; PRE; SRGH).
Distribution (external)
Cameroon
Central African Republic
Sudan
Rwanda
Burundi
Uganda
Kenya
Tanzania
Zaire (Dem. Rep. Congo)
Angola

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