Skip to main content
This species is accepted, and its native range is Cameroon to SW. Uganda.
A specimen from Kew's Herbarium

[FTEA]

Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Pycnostachys, G Bramleyshaped. Flora of Tropical East Africa. 2009

Type
Type: Cameroon, Efulen, Bates 372 (K!, holo. BM!, iso.)
Morphology General Habit
Scandent herb or shrub to 2.5 m long, apex herbaceous, becoming woody below
Morphology Stem
Stems erect, scandent, fleshy, quadrangular, pubescent with short eglandular hairs and red sessile glands
Morphology Leaves
Leaves opposite, petiolate; blades ovate, 5–9 × 2.5–5.5 cm, coarsely crenate or crenate-serrate, up to seven indentations per leaf, apex acuminate, base cuneate to rounded and shortly attenuate, sometimes asymmetrically so, with red sessile glands and sparsely pubescent with short eglandular hairs, the hairs more plentiful on margins and venation; petiole 18–35 mm long, pubescent with short eglandular hairs and with red sessile glands
Morphology Reproductive morphology Inflorescences
Inflorescence dense, when in flower forming a conical shape, subglobose in fruit, 28–30 × 25–30 mm; bracts subtending entire inflorescence narrowly ovate, 12–20 mm long, acute, enclosing buds then becoming deflexed in flower, pubescent with short eglandular hairs, shortly ciliate, persistent through flowering stage; bracts subtending single flowers inconspicuous, linear, 2–3 mm long
Morphology Reproductive morphology Flowers Calyx
Calyx with tube 1–1.5 mm long at anthesis, outer surface with with adpressed eglandular hairs and scattered red sessile glands, inner surface with inconspicuous triangular scales present between calyx lobes; lobes 5, subulate and ± equal, 2–2.5 mm long; fruiting calyx with tube 5–6 mm long, conspicuously gibbous on all sides, lobes patent, extending to 5–6 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla blue to purple, 12–13 mm long, with scattered eglandular hairs and red sessile glands; tube very narrow and parallel-sided for 5–6 mm, then curving sharply downwards and broadening for 3 mm before opening out into two lips; posterior lip much shorter than anterior, ± 1 mm long; anterior lip 5–5.5 mm long, 2.5–3 mm deep
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens connate for ± 1.5 mm, not exserted
Morphology Reproductive morphology Flowers Disc
Disk with anterior lobe longer than ovary, ± 1 mm long, three posterior lobes much shorter
Morphology Reproductive morphology Fruits
Nutlets ± 1 mm long.
Ecology
Lowland rain forest; forest swamps; no altitude recorded.
Conservation
Only once collected in East Africa and indicative of the many species characteristic of this and similar lowland forests in western Uganda. Possibly threatened in Uganda, but species as a whole is probably of Least Concern status.
Note
P. batesii is easily distinguished because of its calyx, which is conspicuously gibbous, appearing almost inflated, in fruit. It also has characteristic leaves, which are petiolate, coarsely crenate or crenate-serrate, and very membranous.
Distribution
Range: Cameroon, Congo-Kinshasa and southern Sudan Flora districts: U2

Native to:

Cameroon, Sudan, Uganda, Zaïre

Coleus batesii (Baker) A.J.Paton appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Mar 1, 2002 Cable, S. [896], Cameroon Pycnostachys batesii K000025759
Feb 1, 2002 Ensermu, K. [3558], Cameroon Pycnostachys batesii K000025758
May 1, 2001 Cheek, M. [8946], Cameroon Pycnostachys batesii K000051072
May 1, 2001 Etuge, M. [2538], Cameroon Pycnostachys batesii K000051071
Mar 1, 1996 Cheek, M. [7094], Cameroon Pycnostachys batesii K000086188
Jan 1, 1914 Bates, G.L. [372], Cameroon Pycnostachys batesii K000405951 Unknown type material

First published in PhytoKeys 129: 25 (2019)

Accepted by

  • Paton, A.J., Mwanyambo, M. Govaerts, R.H.A., Smitha, K., Suddee, S., Phillipson, P.B., Wilson, T.C., Forster, P.I. & Culham, A. (2019). Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): A tale of more than two genera PhytoKeys 129: 1-158.

Literature

Kew Backbone Distributions

  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0