Vitex thyrsiflora Baker

Meerts, Pierre, 2018, Synopsis of the genus Vitex (Lamiaceae) in the Democratic Republic of the Congo, Plant Ecology and Evolution 151 (3), pp. 380-392 : 389

publication ID	https://doi.org/10.5091/plecevo.2018.1504
DOI	https://doi.org/10.5281/zenodo.7643207
persistent identifier	https://treatment.plazi.org/id/03D15322-0058-1E44-FC8C-55C0FDA2FF75
treatment provided by	Diego (2023-02-15 12:06:20, last updated 2024-11-26 04:53:15)
scientific name	Vitex thyrsiflora Baker
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17. Vitex thyrsiflora Baker View in CoL View at ENA

( Baker 1895: 152; 1900: 319); Pieper (1928: 54); Moldenke (1958a: 152); Huber et al. (1963: 446); Lebrun & Stork (1997: 526).

– Type: Nigeria, Interior of western Lagos, 1893, Rowland s.n. (lecto-: K barcode K 000192742, designated here) .

A liana. Twigs strongly quadrangular, hollow, myrmecophilous. Leaves 5-foliolate, petiolule 8–10 mm, lamina with a fine acumen, 7–8 pairs of secondary veins, upper surface scabrid, lower surface almost glabrous, with many yellow glands. Inflorescence of thyrses in the axils of leaves and grouped in a terminal panicle; calyx truncate, 2–3 mm, corolla whitish, 4–6 mm; fruit globose, c. 7 mm, orange to blackish, subtended by patelliform calyx.

Distribution – Wtropical Africa, from Guinea to D.R. Congo.

Note – Lectotypification of Vitex thyrsiflora Baker. Baker (1895) cites two specimens: Harrison s.n. (K barcode K000192741), and Rowland s.n. (Kbarcode K000192742). Both match the protologue. The latter is a better preserved specimen and is therefore chosen as the lectotype.

References

Baker J. G. (1895) Vitex thyrsiflora. In: Diagnoses Africanae, VI. Bulletin of Miscellaneous information 1985 (102 - 103): 141 - 153. https: // doi. org / 10.2307 / 4114935

Baker J. G. (1900) Vitex. In: Thiselton-Dyer W. T. (ed.) Flora of tropical Africa 5 (2): 315 - 332. London, Lovell Reeve & Co.

Huber H., Hepper F. N., Meikle R. D. (1963) Verbenaceae. In: Hep- per F. N. (ed.) Flora of West Tropical Africa, 2 nd Ed., vol. 2: 432 - 448. London, Crown Agents for Oversea Governments and Administrations.

Lebrun J. - P., Stork A. (1997) Enumeration des plantes a fleurs d'Afrique. IV. Geneve, Conservatoire et Jardin botaniques de la ville de Geneve.

Moldenke H. N. (1958 a) Materials towards a monograph of the genus Vitex. X. Phytologia 6: 129 - 192.

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).