Vitex congolensis var. congolensis var. congolensis
Creators: name: Meerts, Pierre
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Vitex
Vitex congolensis
Vitex congolensis var. congolensis

description: 4a. <i>Vitex congolensis</i> var. <i>congolensis</i> <i>Vitex aesculifolia</i> Baker (Baker 1900: 325); Durand &amp; Durand (1909: 436). – Type: D.R. Congo, Monbuttu, near Munsa, 7 Apr. 1870, <i>Schweinfurth</i> 3442 (holo-: K). <i>Vitex seretii</i> De Wild. (De Wildeman 1909: 130); Pieper (1928: 59); Lebrun &amp; Stork (1997: 526). – Type: D.R. Congo, Nala, Mar. 1907, <i>Seret</i> 847 (lecto-: BR barcode BR0000008906229 <b>designated here</b>; isolecto-: BR0000008906212), <b>synon. nov.</b> <i>Vitex thonneri</i> De Wild. (De Wildeman 1911: 246); De Wildeman (1912a: 467; 1912b: 216, 262; 1929a: 16); Pieper (1928: 59); Lebrun &amp; Stork (1997: 526). – Type: D.R. Congo, Ubangui, Banzyville [Mobayi-Mbongo], à 450 m d’altitude dans les broussailles, parmi les rochers, 8 Mar. 1909, <i>Thonner</i> 263 (lecto-: BR barcode BR0000008906540, <b>designated here</b>; isolecto-: BR barcodes BR0000008906243 &amp; BR0000008906250, Wbarcode W 1911-0005189, Kbarcodes K000192755 &amp; K000192756), <b>synon. nov.</b> <i>Vitex gilletii</i> Gürke (Gürke 1903: 298); De Wildeman (1903b: 72; 1912a: 467; 1912b: 91, 242); Durand &amp; Durand (1909: 437); Lebrun &amp; Stork (1997: 524). – <i>Vitex congolensis</i> De Wild. &amp; T.Durand var. <i>gilletii</i> (Gürke) W.Piep. (Pieper 1928: 59). – Type: D.R. Congo, Kimuenza, May 1901, <i>Gillet</i> 2163 (lecto-: BR barcode BR0000008903662, <b>designated here</b>). A tree. Young twigs, petiole and inflorescence with long spreading ferrugineous or fulvous fine hairs. Leaflets 5; petiolule 0–5 mm; lamina softly fulvous pubescent beneath. Inflorescence a dichasium on a long peduncle; calyx 1.5–2.5 mm, ferrugineous to fulvous pubescent; ovary glabrous; corolla 5–7 mm, cream with bluish lower lip. Fruit 10–15 mm long. <b>Distribution</b> – Wand C Africa, from Ivory Coast southwards to Angola and eastwards to Sudan. <b>Notes</b> – Lectotypification of <i>Vitex congolensis</i> De Wild. The protologue cited only one collection (<i>Dewèvre</i> s.n.). The material stored at BR comprise <i>Dewèvre</i> 770a (2 sheets) and <i>Dewèvre</i> 926a (3 sheets); one sheet has locality description and notes handwritten by De Wildeman (BR0000008905918); it is here chosen as the lectotype. Remaining syntypes: sine loco, sine dato, <i>Dewèvre</i> 926a (BR barcodes BR0000008905406 &amp; BR0000008905413). Lectotypification of <i>Vitex thonneri</i> De Wild. The protologue cited <i>Thonner</i> 263, which has been widely distributed to several herbaria. Of the three sheets in BR, the one with De Wildeman’s handwriting on the label is selected as the lectotype. The original material has the diagnostic characters of <i>V. congolensis</i>; it is unusual in having short leaflets, but this trait is variable within the species and Ido not think this variant is worth taxonomic recognition. Lectotypification of <i>Vitex gilletii</i> De Wild. Only one of the two syntypes has been found (<i>Gillet</i> 2163); the other syntype (<i>Pogge</i> 698) has probably been destroyed in Berlin and no duplicate could be traced. The type material of <i>V. gilletii</i> has leaflets with a somewhat unusual shape (low length/width ratio), abruptly contracted in a relatively long acumen. However, <i>V. congolensis</i> has a variable leaflet shape and size and it is impossible to discriminate taxa on that basis.
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 381-384, DOI: 10.5091/plecevo.2018.1504, http://zenodo.org/record/7664390
description: {"references": ["Baker J. G. (1900) Vitex. In: Thiselton-Dyer W. T. (ed.) Flora of tropical Africa 5 (2): 315 - 332. London, Lovell Reeve &amp; Co.", "Durand T., Durand H. (1909) Sylloge Florae Congolanae [Phanerogamae]. Bulletin du Jardin botanique de l'Etat a Bruxelles 2: 1 - 716. https: // doi. org / 10.2307 / 3666516", "De Wildeman E. (1909) Etudes sur la flore du Bas- et du Moyen- Congo. Annales du Musee du Congo, Botanique, Serie V, vol. 3 (1): 1 - 147.", "Pieper W. (1928) Vorarbeiten zu einer Revision der afrikanischen Vitex - Arten mit Berucksichtigung der ubrigen. Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzenge- ographie 62, Beibl. 141 (\" 142 \"): 1 - 91 (+ XIII tables).", "Lebrun J. - P., Stork A. (1997) Enumeration des plantes a fleurs d'Afrique. IV. Geneve, Conservatoire et Jardin botaniques de la ville de Geneve.", "De Wildeman E. (1911) Etude sur la Flore des districts des Bangala et de l'Ubangi (Congo belge). Plantae Thonnerianae Congolenses. Serie II. Bruxelles, Misch &amp; Thron.", "De Wildeman E. (1912 a) Etudes sur la flore du Bas- et du Moyen- Congo. Annales du Musee du Congo, Botanique, Serie V, vol. 3 (3): 317 - 533.", "De Wildeman E. (1912 b) Documents pour l'etude de la geo-botanique congolaise. Bulletin de la Societe Royale de Botanique de Belgique 51 (3): 1 - 406.", "De Wildeman E. (1929 a) Plantae Bequaertianae 5 (1). Paris, Lechevalier.", "Gurke R. L. A. M. (1903) Verbenaceae africanae 3. Botanische Jahr- bucher fur Systematik, Pflanzengeschichte und Pflanzengeogra- phie 33: 292 - 300.", "De Wildeman E. (1903 b) Etudes de systematique et de geographie botaniques sur la Flore du Bas- et Moyen-Congo. Annales du Musee du Congo, Botanique, Serie V, vol. 1 (1)."]}