Clerodendrum capitatum var. vanderystii Moldenke (1951: 407

Meerts, Pierre, 2023, The genus Clerodendrum (Lamiaceae) in the flora of Central Africa (D. R. Congo, Rwanda, Burundi), Phytotaxa 594 (1), pp. 1-42 : 10

6b. Clerodendrum capitatum var. vanderystii Moldenke (1951: 407 ; 1985f: 42).

Type:— D.R. CONGO. Ipamu , May 1921, Vanderyst 9418 (holotype: BR0000008929952!) .

Differs from the type variety by the following combination of traits: corolla tube glabrous, corolla lobes shorter (6–10 mm) and stamens more shortly exserted (10–15 mm); flower bud glabrous to pubescent, not glandular.

Distribution in Central Africa:—D.R. Congo (only in the south-west).

Distribution elsewhere:—Not known elsewhere; endemic of D.R. Congo.

Habitat:—As the type variety.

Selection of representative specimens:—D.R. CONGO. Mayombe: Bivovolo , 30 July 1923, Wellens 292 (BR!); Bas-Congo: Kimbuba , June 1954, Callens 4574 ( BR!); Madiba (Entre Kimbambi et Mpese), 26 April 1960, Compère 2015 ( BR!). Kasaï: Kisungu , 21 April 1953, Callens 2113 ( BR!), Mapangu , 31 May 1978, Dumont 225 ( BR!), Madibi , 9 June 1904, Lescrauwaet 87 ( BR!).

Note:—Specimens with glabrous corolla tube are occasionally found elsewhere in W Africa; however, they generally have long corolla lobes and long stamens.