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This genus is accepted, and its native range is Eritrea to S. Africa, Arabian Peninsula.
Megalochlamys violacea

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology Reproductive morphology Inflorescences
Flowers in dense terminal spikes; bracts persistent, usually with a pungent tip; bracteoles 2, narrow
Morphology Reproductive morphology Flowers Perianth
Calyx deeply 5-lobed; lobes equal. Corolla blue or white, 2-lipped; tube usually shorter than lobes; upper lip narrowly elliptic, usually entire; lower lip 3-lobed
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2, held between upper and lower lip and diverging; anthers 2-celled, straight, held at right angle to filament
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2-celled with 2 ovules per cell; style filiform, usually ± hairy; stigma-lobes 2, equal, oblong-elliptic. Capsule club-shaped, 1–2(–4)-seeded
Morphology Reproductive morphology Seeds
Seeds flattened, smooth, glandular-glochidiate or tuberculate.
Distribution
Genus of 10 species in eastern and southern Africa, with two species extending to the Arabian Peninsula.
Morphology General Habit
Shrubs or perennial herbs
Morphology Leaves
Leaves simple, entire

[FZ]

Flora Zambesiaca Acanthaceae (part 2) by Iain Darbyshire, Kaj Vollesen and Ensermu Kelbessa

Morphology General Habit
Erect (rarely scrambling) shrubby herbs or shrubs; stems 4-angular with 4 longitudinal furrows on edges.
Morphology Leaves
Leaves opposite, usually with conspicuous cystoliths, sometimes with dark sessile glands, entire.
Morphology Reproductive morphology Flowers
Flowers solitary, sessile, in dense strobilate terminal spiciform cymes; bracts persistent, usually glossy, usually with a straight or recurved pungent tip and with conspicuously raised venation; bracteoles 2, subulate.
Morphology Reproductive morphology Flowers Calyx
Calyx deeply divided into 5 equal linear to lanceolate or narrowly triangular lobes.
Morphology Reproductive morphology Flowers Corolla
Corolla pale blue to bright sky-blue, puberulous outside; tube cylindric, not or very slightly widening upwards, straight or very slightly curved; lower lip with 3 horizontal narrowly elliptic to elliptic subequal lobes; upper lip with one narrowly elliptic 2-veined entire (rarely retuse) lobe.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2, spreading straight out between lower and upper lip and diverging, inserted near base of lower lip, usually with short downwardly directed hairs along their whole length; anthers usually 2–3 mm long, bithecous, medifixed, held at right angle to filament, thecae oblong, subequal, straight, rounded at both ends.
Morphology Reproductive morphology Flowers Gynoecium Style
Style filiform, hairy in lower part or in whole length; stigma lobes equal, oblong-elliptic, flat, rounded, usually recurved; ovary with 2 ovules per locule.
Morphology Reproductive morphology Fruits
Capsule 2-seeded, club-shaped, apiculate; retinaculae strong.
Morphology Reproductive morphology Seeds
Seeds discoid, broadly elliptic to orbicular in outline with a slightly raised usually entire rim, rugose with dense glandular-glochidiate hairs.
Distribution
A genus of 10 species in eastern and southern Africa, two extending to the southern part of the Arabian Peninsula.

Native to:

Angola, Botswana, Djibouti, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Northern Provinces, Oman, Saudi Arabia, Somalia, Sudan, Tanzania, Uganda, Yemen, Zambia, Zimbabwe

Megalochlamys Lindau appears in other Kew resources:

First published in Bot. Jahrb. Syst. 26: 345 (1899)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Flora Zambesiaca

  • in Bot. Jahrb. Syst. 26: 345 (1899).
  • —Vollesen in Kew Bull. 44: 605 (1989).

Flora of Somalia

  • Flora Somalia, (2000) Author: by M. Thulin [updated by M. Thulin 2008]
  • Vollesen in Kew Bull. 44: 605–638 (1989).

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/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