Vitex doniana Sweet
Creators: name: Meerts, Pierre
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Vitex
Vitex doniana

description: <b>8.</b> <i>Vitex doniana</i> Sweet (Sweet 1826: 323); Baker (1900: 323); Pieper (1928: 64); White (1962: 371); Huber et al. (1963: 446); Verdcourt (1992: 62); Pauwels (1993: 216); (Beentje 1994: 622); Lebrun &amp; Stork (1997: 524); van Wyk &amp; van Wyk (1997: 476); Sales (2001: 192; 2005: 85); Coates Palgrave &amp; Coates Palgrave (2005: 981); Latham &amp; Konda ku Mbuta (2010: 326); Meerts &amp; Hasson (2016: 335); Meerts (2016: 231). – Type: Sierra Leone, <i>Don</i> s.n. (holo-: BM barcode BM 000839716). <i>Vitex cuneata</i> Thonn. (Schumacher 1827: 289); Baker (1900: 328); De Wildeman (1926: 205; 1929a: 8; 1929b: 101); Pieper (1928: 71); Delevoy (1929: 478). – Type: Guinea [Ghana], <i>Thonning</i> 244 (holo-: Cbarcode C 10004694; iso-: Sbarcode S 10-29263, LE barcode LE 00016530). <i>Vitex cienkowskii</i> Kotschy &amp; Peyr. (Kotschy &amp; Peyritsch 1867: t. 12); Durand &amp; Durand (1909: 436); De Wildeman (1912a: 467; 1921: 164; 1926: 205); Delevoy (1931: 7). – Type: South Sudan, ad Mischra Req prope Bahr Ghasal, Apr. 1863, <i>von Heuglin</i> 41 [sphalm. “43” in protologue] (lecto-: Wbarcode W 2004-0012683 designated by Cabral (2013); isolecto-: Wbarcodes W 2004-0012682, W 2004-0012684 &amp; W 2004-0012681). ? <i>Vitex lundensis</i> Gürke (Gürke 1893: 168); Durand &amp; Schinz (1896: 25); Baker (1900: 327); Durand &amp; Durand (1909: 437); De Wildeman (1912b: 280); Pieper (1928: 73); Moldenke (1956: 448); Lebrun &amp; Stork (1997: 525). – Type: D.R. Congo, Lulua river, Lunda, 17 May 1892, <i>Pogge</i> 1260 (B †). ? <i>Vitex poggei</i> Gürke (Gürke 1893: 168); Durand &amp; Schinz (1896: 25); Baker (1900: 329); Durand &amp; Durand (1909: 437); Pieper (1928: 73); Moldenke (1957: 80); Lebrun &amp; Stork (1997: 525). – Type: [Probably Angola], Lunda, <i>Pogge</i> 1255 (holo-: B, n.v.). <i>Vitex dewevrei</i> De Wild. &amp; T.Durand (Durand &amp; De Wildeman 1899: 133); De Wildeman &amp; Durand (1900: 50; 1901: 185); Baker (1900: 327); De Wildeman (1909: 128; 1912b: 91); Durand &amp; Durand (1909: 437). – Type: D.R. Congo, Bas-Congo, Lukungu, 31 Oct. 1895, <i>Dewèvre</i> 459 (lecto-: BR barcode BR0000008905475 designated by Cabral (2013); isolecto-: BR barcodes BR0000008905437 &amp; BR0000008905482). <i>Vitex homblei</i> De Wild. (De Wildeman 1914a: 142; 1914c: 404; 1921: 164). – Type: D.R. Congo, Elisabethville [Lubumbashi], May 1912, <i>Homblé</i> 318 (lecto-: BR barcode BR0000005570850 designated by Cabral (2013); isolecto-: BR barcode BR0000005571185, BR0000005570867). A tree. Twigs fulvous to greyish puberulent. Leaves glabrous; leaflets 5, long petiolulate; lamina very coriaceous, shiny above, generally rounded at tip. Inflorescence of dichasia, generally much shorter than leaves; calyx 3–4 mm, shortly pubescent; ovary hairy; corolla whitish with bluish lower lip. Fruit c. 25 mm long. <b>Distribution</b> – Widespread in tropical and subtropical Africa; Madagascar, Wof Indian Ocean. <b>Note</b> – Very robust specimens of <i>V. doniana</i> with short inflorescence, occurring mostly in the rainforest region (e.g. <i>Lejoly</i> 4191 (BRLU), <i>Dhetchuvi</i> 1054 (BRLU)), resemble <i>V. grandifolia,</i> a species of Wtropical Africa, not recorded from D.R. Congo. Unlike <i>V. grandifolia</i>, <i>V. doniana</i> is never associated to ants; <i>V. doniana</i> has a pale blue corolla with white throat (vs. a yellowish-brown corolla with red throat in <i>V. grandifolia</i>). The type specimens of <i>V. lundensis</i> Gürke and <i>V. poggei</i> Gürke have not been seen, but the protologue and the subsequent descriptions based on the original material (Baker 1900; Pieper 1928) leave little doubt that both taxa belong here.
description: Published as part of <i>Meerts, Pierre, 2018, Synopsis of the genus Vitex (Lamiaceae) in the Democratic Republic of the Congo, pp. 380-392 in Plant Ecology and Evolution 151 (3)</i> on pages 385-386, DOI: 10.5091/plecevo.2018.1504, http://zenodo.org/record/7664390
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