Clerodendrum thyrsoideum Gürke (1900: 293)

Meerts, Pierre, 2023, The genus Clerodendrum (Lamiaceae) in the flora of Central Africa (D. R. Congo, Rwanda, Burundi), Phytotaxa 594 (1), pp. 1-42 : 33

publication ID	https://doi.org/10.11646/phytotaxa.594.1.1
DOI	https://doi.org/10.5281/zenodo.7868817
persistent identifier	https://treatment.plazi.org/id/49146779-FFBE-693F-FF06-FDC9FB59FA47
treatment provided by	Plazi (2023-04-24 09:41:22, last updated 2024-11-26 02:48:26)
scientific name	Clerodendrum thyrsoideum Gürke (1900: 293)
status

Treatment

25. Clerodendrum thyrsoideum Gürke (1900: 293) View in CoL ; Baker (1900: 516); De Wildeman (1905: 310; 1910a: 403; 1912b: 91); Durand & Durand (1909: 441); Thomas (1936: 73); Huber (1963: 444); Lebrun & Stork (1997: 513); Akoegninou et al. (2006: 985); Hawthorne & Jongkind (2006: 426); Lisowski (2009: 364); Lejoly et al. (2010: 295); César & Chatelain (2019: 731); Pollard (2022: 37).

Type:— D.R. CONGO. Bokakata , 6 February 1896, Dewèvre 812 (holotype: B?, not seen; iso-: BR0000008979322!) .

Sarmentose shrub or liana up to 8 m. Stem glabrous or puberulous, greyish to reddish, with pale lenticels; persistent petiole bases 2–15 mm. Leaves: petiole 0.5–3.0 cm, slender, glabrous, rarely pilose; lamina: elliptic to ovate-elliptic, 4–14 × 2–6 cm, base cuneate, apex acuminate, upper surface glossy, glabrous on both surfaces, 3–4 veins on either side, tertiary veins scalariform, prominent on both surfaces, lower surface gland-dotted, margin entire, recurved. Inflorescence terminal, a pyramidal thyrse, 6–40 × 6–13 cm, internodes 5–65 mm, cymules 2–15 flowered, 10–35 × 10–35 mm, lax, upwardly decreasing in size, peduncle 10–30 mm, perpendicular to rachis, in the axils of foliaceous bracts, branches greyish tomentellous. Flower: pedicel 5–20 mm, greyish tomentellous, bracts filiform 1–2 mm long; calyx 4–6 × 6–8 mm, whitish to glaucous green, glabrous to puberulent, gland-dotted, tube campanulate, 1.5–3 mm, limb spreading, lobes 2–3 × 2–3 mm, triangular; corolla yellowish, tube 7–11 mm, tomentellous, lobes 4–5 mm, reflexed, greyish tomentellous without; stamens exserted ca. 10 mm, greenish, anther ca. 1 mm long, blackish to ochraceous. Fruit subglobose, 7–9 × 7–8 mm, subtended by cupuliform calyx ca. 8 × 10 mm, striate.

Distribution in Central Africa:—D.R. Congo.

Distribution elsewhere:— Benin, Burkina, Cameroon, Central African Republic, Chad, Congo, Gambia, Guinea, Guinea-Bissau, Liberia, Mali, Nigeria, Sierra Leone.

Habitat:— Flooded forest , sphagnum bog, riparian forest; ca. 200–400 m.

Selection of representative specimens:— D.R. CONGO. Bas-Congo: Boko , July 1949, Callens 2094 (BR!) . Kasaï: Kisenge, Kwango-Sud, 24 July 1955, Devred 2327 (BR!), Entre Selenge et Lokolela, July 1925, Goossens 6010 (BR!). Forestier Central: Bogoy (territ. Boende), 4 January 1958, Evrard 3197 (BR!); Yandja, 1 January 1940, Germain 81 (BR!); Ile Mongayiolo (riv. Ruki), 9 September 1925, Robyns 494 (BR!, WAG).

References

Akoegninou, A., van der Burg, W. J. & van der Maesen, L. J. G. (eds.) (2006) Flore Analytique du Benin. Backhuys Publishers, Leiden, 1034 pp.

Baker, E. G. (1900) Clerodendrum. In: Thiselton-Dyer, W. T. (Ed.) Flora of Tropical Africa 5. Lovell Reeve & Co, London, pp. 292 - 314.

Cesar, J. & Chatelain, C. (2019) Flore illustree du Tchad. Conservatoire et Jardin botaniques de Geneve, Cooperation Suisse & Univ. N'Djamena, 767 pp.

De Wildeman, E. (1905) Etudes sur la flore du Bas- et du Moyen-Congo. Annales du Musee du Congo, Botanique, ser. 5, 1: 1 - 344.

De Wildeman, E. (1910 a) Compagnie du Kasai. Mission permanente d'etudes scientifiques. Resultats de ses recherches botaniques et agronomiques. Lesigne. Bruxelles, 463 pp. https: // doi. org / 10.5962 / bhl. title. 147877

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.

Durand, T. & Durand, H. (1909) Sylloge florae congolanae [Phanerogamae]. De Boeck, Bruxelles, 716 pp. https: // doi. org / 10.2307 / 3666516

Hawthorne, W. & Jongkind, C. (2006) Woody plants of western African forests: a guide to the forest trees, shrubs and lianas from Senegal to Ghana. Kew Publishing, Royal Botanic Gardens, Kew, 1023 pp.

Huber, H. (1963) Clerodendrum. In: Hepper, F. N. (Ed.) Flora of West Tropical Africa, 2 nd Ed., vol. 2. Crown Agents for Oversea Governments and Administrations, London, pp. 439 - 445.

Lebrun, J. - P. & Stork, A. (1997) Enumeration des plantes a fleurs d'Afrique. IV. Conservatoire et Jardin botaniques de la ville de Geneve, Geneve, 712 pp.

Lejoly, J., Ndjele, M. - B. & Geerinck, D. (2010) Catalogue-Flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo), ed. 4. Taxonomania 30: 1 - 307.

Lisowski, S. (2009) Flore (Angiospermes) de la Republique de Guinee. Premiere partie (Texte). Jardin botanique national de Belgique, Meise, 1095 pp.

Pollard, B. (2022) Clerodendrum. In: Sosef, M. S. M., Florence, J., Bourobou Bourobou, H. P., Bissiengou, P. (eds.) Flore du Gabon, vol. 58. Labiatae. Margraf Publishers, Weikersheim, pp. 17 - 40.

Thomas, B. (1936) Die Gattung Clerodendrum inAfrika. Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 68: 1 - 106.