Clerodendrum silvanum f. caulanthum ( Exell 1930: 143 ) Fernandes (1998: 22)

Meerts, Pierre, 2023, The genus Clerodendrum (Lamiaceae) in the flora of Central Africa (D. R. Congo, Rwanda, Burundi), Phytotaxa 594 (1), pp. 1-42 : 29

publication ID	https://doi.org/10.11646/phytotaxa.594.1.1
DOI	https://doi.org/10.5281/zenodo.7868803
persistent identifier	https://treatment.plazi.org/id/49146779-FF82-6903-FF06-FBA5FDCEF95D
treatment provided by	Plazi (2023-04-24 09:41:22, last updated 2024-11-26 02:48:26)
scientific name	Clerodendrum silvanum f. caulanthum ( Exell 1930: 143 ) Fernandes (1998: 22)
status

Treatment

21b. Clerodendrum silvanum f. caulanthum ( Exell 1930: 143) Fernandes (1998: 22) View in CoL .

Type:— ANGOLA. Mayumbe , Buco Zau, 19 July 1916, Gossweiler 6507 (holotype: BM000583239 ; iso-: COI00068424 , LISC not seen) .

≡ Clerodendrum caulanthum Exell (1930: 143) View in CoL ; Thomas (1936: 70); Lebrun & Stork (1997: 511).

= Clerodendrum wildemannianum Exell (1930: 143) ; Thomas (1936: 70); Moldenke (1980: 219); Lebrun & Stork (1997: 514) ≡ Clerodendrum cauliflorum De Wildeman (1920b: 165 View in CoL ; 1922: 258) nom. illeg. non Clerodendrum cauliflorum Vatke (1882: 538) View in CoL . Type:—D.R. CONGO. Mayombe, Luali, 26 August 1913, Bequaert 635 (holotype: BR0000008979384! & BR0000008979391!; iso-: NY00137401 (fragm.)).

Differs from the type variety by the congested, hemispheric inflorescence.

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

Distribution elsewhere:— Angola.

Habitat:—Rainforest, riparian forest; ca. 200 m (?)

Selection of representative specimens:—D.R. CONGO. Mayombe: Luali, 26 August 1913, Bequaert 635 (BR!).

Notes:—Congested inflorescence seems to be restricted to the westernmost part of the species’ distribution range. Intermediates between f. silvanum and f. caulanthum are occasionally found; they correspond to f. botryoides ( Hiern 1900: 843) Fernandes (1998: 21) .

References

De Wildeman, E. (1920 b) Notes sur quelques especes africaines du genre Clerodendron (Verbenaceae). Bulletin du Jardin botanique de l'Etat a Bruxelles 7: 161 - 187. https: // doi. org / 10.2307 / 3666464

De Wildeman, E. (1922) Plantae Bequaertianae. I (2). Hoste, Gand, pp. 167 - 298.

Exell, A. (1930) Verbenaceae. Mr. John Gossweiler's Portuguese west African plants. Journal of Botany 68 (Suppl. 2): 137 - 146.

Fernandes, R. (1998) Notes sur les Verbenaceae. XI. Remarques sur quelques taxa africains du genre Clerodendrum L. Memorias da Sociedade Broteriana 30: 5 - 109.

Hiern, W. P. (1900) Catalogue of African plants collected by Dr Friedrich Welwitsch in 1853 - 1861. Dicotyledons, vol. IV. Longmans, London, pp. 785 - 1035.

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.

Moldenke, H. N. (1980) A sixth summary of the Verbenaceae, Avicenniaceae, Stilbaceae, Chloanthaceae, Symphoremaceae, Nyctanthaceae and Eriocaulaceae of the world as to valid taxa, geographic distribution and synonymy. Phytologia Memoirs, vol. 2. 629 pp. https: // doi. org / 10.5962 / bhl. title. 12983

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

Vatke, W. (1882) Plantas in itinere Africano ab J. M. Hildebrandt collectas determinare pergit. Linnaea 43: 507 - 542.