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This species is accepted, and its native range is NE. Tropical Africa to Kenya, S. Arabian Peninsula, S. Pakistan.
Ruellia linearibracteolata

[FSOM]

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

Morphology General Habit
Small shrub or perennial herb up to 10–45 cm tall
Morphology Stem
Young stems pale green, densely pubescent with patent up to 0.7 mm long glandular and eglandular hairs; old stems pale grey
Morphology Leaves
Leaf-blades linear to narrowly lanceolate or rarely narrowly ovate, up to 35–90 x 3–9 mm, with prominent pale veins, densely ciliate-pubescent with up to 1.5 mm patent white hairs and thin glandular hairs, apex acute, base attenuate; petiole indistinct
Morphology Reproductive morphology Flowers
Flowers single in leaf axils, subsessile; bracteoles leaf-like, up to 17–22 x 2 mm
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes with pale midvein and broad hyaline margins, narrowly triangular-subulate, up to 5–12 x 1 mm, enlarged in fruit, fairly densely hairy with up to 0.8 mm long somewhat antrorse hairs especially along midvein and margin
Morphology Reproductive morphology Flowers Corolla
Corolla blue or white, at least up to c. 15–28 mm long and 10–12 mm across; tube funnel-shaped, up to 10–12 mm long; lobes with free part 5–6 mm long
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers c. 1.5 mm long
Morphology Reproductive morphology Fruits
Capsule elongate and slender, 8–16-seeded, up to 12–16 x 2–3 mm, fairly densely pubescent with c. 0.2 mm long appressed simple hairs all over.
Distribution
N1–3; C1, 2; S1, 2; Ethiopia, Kenya, Yemen, Pakistan
Ecology
Altitude range 40–1350 m.
Vernacular
Sarin, xarum (Somali).
Note
Some material approaches R. prostrata in having relatively broad leaves.

[FTEA]

Acanthaceae (part 2), Kaj Vollesen. Flora of Tropical East Africa. 2008

Type
Type: Ethiopia, Ganale, Ruspoli & Riva 1152 (FT, holo.)
Morphology General Habit
Shrubby perennial herb or shrub to 0.5(–1) m tall; young stems glabrous except often with long broad curly glossy hairs to 3 mm long near nodes
Morphology Leaves
Leaves with petiole 0–10 mm long, with long broad curly glossy hairs to 3 mm long; lamina narrowly ovate to ovate or elliptic, largest 2.5–8.5 × 0.6–2.2 cm, apex acute, base attenuate, decurrent on petiole, pubescent or sparsely so, densest along veins, margin distinctly ciliate
Morphology Reproductive morphology Flowers
Flowers solitary or in 3-flowered axillary dichasia; pedicels 0.5–1.5 mm long, glabrous to puberulous; bracteoles (bracts in cymes) narrowly ovate to ovate, 10–20 × 3–8 mm
Morphology Reproductive morphology Flowers Calyx
Calyx 6–11 mm long, divided to 3–5 mm from base (i.e. normally about half way), with ciliate lobes, otherwise glabrous or with a few hairs along ribs; lobes triangular or narrowly so
Morphology Reproductive morphology Flowers Corolla
Corolla falling early in the morning, pale mauve to purple, with darker lines in throat; tube 15–17 mm long of which the basal cylindric part 4–5 mm and the throat 11–12 mm long; lobes 8–11 × 7–10 mm, ovate-elliptic or broadly so, with entire to crenate margin. Stamens included in throat, didynamous, anthers not overlapping; filaments fused for ± 0.5 mm at base, free parts 1–3 and 4–6 mm long; anthers ± 2 mm long
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with sparse appressed hairs.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Ventral stigma lobe 1–1.5 × ± 0.5 mm.
Morphology Reproductive morphology Fruits
Capsule narrowly oblanceolate, with appressed hairs, eventually glabrous, 17–22 mm long, 8–12-seeded
Morphology Reproductive morphology Seeds
Mature seed not seen.
Ecology
Acacia, Acacia-Commiphora and Acacia-Euphorbia bushland on sandy or alluvial soil; (50–)200–950 m
Note
This species has characters from both R. prostrata (hairy capsule) and R. patula (short triangular calyx lobes). It differs from both in the shrubby habit and the narrowly oblanceolate capsule with appressed hairs.
Distribution
Range: Ethiopia, Somalia; Yemen, India Flora districts: U1 K1 K2 K6 K7

Native to:

Djibouti, Ethiopia, Kenya, Oman, Pakistan, Somalia, Uganda, Yemen

Ruellia linearibracteolata Lindau appears in other Kew resources:

First published in Annuario Reale Ist. Bot. Roma 6: 70 (1896)

Accepted by

  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.

Literature

Kew Backbone Distributions

  • Audru, J., Cesar, J. & Lebrun, J.-P. (1994). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 1: 1-336. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Malik, K.A. & Ghafoor, A. (1988). Flora of Pakistan 188: 1-79. Department of Botany, University of Karachi, Karachi.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Flora of Somalia

  • Flora Somalia, (2000) Author: by M. Hedrén [updated by M. Thulin 2008]
  • Pickering, H. & Awale, A. I. (2018). Introduction to plants in Central Somaliland. Ponte Invisibile, Redsea Cultural Foundation.

Flora of Tropical East Africa

  • Ann. R. Ist. Bot. Roma 6: 70 (1897)
  • E.P.A.: 936 (1964)
  • F.E.E. 5: 390 (2006)
  • F.T.A. 5: 47 (1899)
  • Fl. Somalia 3: 394 (2006).

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

Flora of Tropical East Africa
Flora of Tropical East Africa
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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/