Lamiaceae
Aeollanthus

Aeollanthus holstii Gürke

First published in Bot. Jahrb. Syst. 19: 221 (1894)
This species is accepted
The native range of this species is E. DR Congo to Tanzania. It is a subshrub and grows primarily in the seasonally dry tropical biome.

Descriptions

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. Flora of Tropical East Africa. 2009

Type
Lectotype, selected by Ryding, loc. cit. (1986): Tanzania, Lushoto District: W Usambara Mts, near Mlalo, Holst 421 (B†, holo.; BM!, lecto.)
Morphology General Habit
Subshrub or perennial herb with a thickened stem base, 0.2–1.5 m tall
Morphology Stem
Stem with the eglandular hairs usually ± upcurved
Morphology Leaves
Leaves opposite, shortly petiolate or subsessile; blade elliptic, obovate or narrowly oblanceolate, up to 2–8.5 × 1–2.5 cm, attenuate at the base, margin prominently crenate to almost entire
Morphology Reproductive morphology Inflorescences
Inflorescences lax; spikes one-sided with alternately one or two flowers at each node, or on the main axis usually ± one-sided with two flowers at each node, rarely with minute sterile bracts on the back; bracts lanceolate or narrowly elliptic, often falcate, without glandular dot
Morphology Reproductive morphology Flowers Corolla
Corolla pale violet or purple; tube much broadened in the proximal part, equally broad or slightly narrowed along the central and distal parts, 4–8 mm long; posterior lip distinctly 4-lobed; anterior lip boat-shaped, 3–6.5 mm long.Fruiting calyx cylindrical-ovoid, 3–5 mm long, dehiscent a little below the middle; posterior lip 3-lobed with side-lobes usually larger; anterior lip 2-lobed or truncate; basal part cornet-shaped or campanulate, longer than wide or as wide as long, deeply cupular
Morphology Reproductive morphology Fruits
Nutlets 0.7–0.9 × 0.5–0.7 mm, smooth, matt.
Ecology
Rocks or shallow soil overlying rocks; 700–2600 m
Conservation
Least concern; widespread
Distribution
Flora districts: T3 T6 T7 Range: Congo-Kinshasa, Rwanda
[FTEA]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/111316502/111316526

Conservation
LC - least concern
[IUCN]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Tropical East Africa

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

  • Herbarium Catalogue Specimens

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0