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This genus is accepted, and is native to Africa.

[FZ]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Morphology Branches
Branches 4-angled or terete, usually with prominent leaf-scars
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2, conduplicate, usually ciliate Bracteoles 2, conduplicate, usually ciliate.
Morphology Reproductive morphology Flowers Calyx
Calyx tube cylindric, slightly widened at the apex, circumscissile above or below the top of the ovary, glabrous or hairy; lobes 4, much shorter than the tube, imbricate, the two outer slightly larger than the inner Calyx tube cylindric, slightly widened at the apex, circumscissile above or below the top of the ovary, glabrous or hairy; lobes 4, much shorter than the tube, imbricate, the two outer slightly larger than the inner.
Morphology Reproductive morphology Flowers Corolla
Petals 4, 8 or 12, erect, fleshy, exserted, each surrounded by stiff hairs arising from the base Petals 4, 8 or 12, erect, fleshy, exserted, each surrounded by stiff hairs arising from the base.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, in one whorl, inserted in the throat of the calyx tube, subsessile, alternating with the calyx lobes; anthers linear to oblong, basifixed, included or slightly exserted; pollen spheroid, polyforate Stamens 4, in one whorl, inserted in the throat of the calyx tube, subsessile, alternating with the calyx lobes; anthers linear to oblong, basifixed, included or slightly exserted; pollen spheroid, polyforate.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary sessile or subsessile, 1-chambered, glabrous; disk surrounding the base of the ovary inconspicuous, cup-shaped, often lacking; style filiform, inserted laterally, half as long to almost as long as the calyx tube; stigma minute, ± capitate, papillose
Morphology Reproductive morphology Fruits
Fruit dry, included in the persistent base of the calyx tube, indehiscent Fruit dry, included in the persistent base of the calyx tube, indehiscent.
Distribution
A genus of c. 30 species, mainly in southern Africa, 3 or 4 in eastern and south-east tropical Africa.
Morphology General Habit
Shrubs or undershrubs of ericoid habit. Shrubs or undershrubs of ericoid habit
Morphology Stem
Branches 4-angled or terete, usually with prominent leaf-scars.
Morphology Leaves
Leaves opposite, 3-whorled or alternate, sessile; lamina entire, linear to ± round, often ciliate on the margins, coriaceous or subcoriaceous, parallel-veined. Leaves opposite, 3-whorled or alternate, sessile; lamina entire, linear to ± round, often ciliate on the margins, coriaceous or subcoriaceous, parallel-veined
Morphology Reproductive morphology Flowers
Flowers fragrant at dusk, 4-merous, sessile, usually in the axils of the upper leaves, solitary, rarely in pairs, forming a spiciform inflorescence. Flowers fragrant at dusk, 4-merous, sessile, usually in the axils of the upper leaves, solitary, rarely in pairs, forming a spiciform inflorescence
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile or subsessile, 1-chambered, glabrous; disk surrounding the base of the ovary inconspicuous, cup-shaped, often lacking; style filiform, inserted laterally, half as long to almost as long as the calyx tube; stigma minute, ± capitate, papillose.
Morphology Reproductive morphology Seeds
Seed with a shiny black crustaceous testa, the micropyle forming a curved beak; endosperm scanty; embryo straight; cotyledons fleshy. Seed with a shiny black crustaceous testa, the micropyle forming a curved beak; endosperm scanty; embryo straight; cotyledons fleshy.

[FTEA]

Thymelaeaceae, B. Peterson (University of Göteborg). Flora of Tropical East Africa. 1978

Morphology General Habit
Erect shrubs or undershrubs of ericoid habit
Morphology Branches
Branches 4-angled or terete, with usually prominent leaf scars
Morphology Leaves
Leaves opposite, whorled in threes, or alternate, sessile; blade simple, entire, linear to suborbicular, margins often ciliated, coriaceous or subcoriaceous, parallel-veined
Morphology Reproductive morphology Inflorescences
Inflorescence a spike
Morphology Reproductive morphology Flowers
Flowers 4-merous, sessile, usually in the axils of the upper leaves, solitary, rarely in pairs, fragrant at dusk
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2, conduplicate, usually ciliate
Morphology Reproductive morphology Flowers Calyx
Calyx-tube cylindric, slightly widened at top, circumscissile above or below the top of the ovary, glabrous or hairy; lobes 4, much shorter than the tube, imbricate, the 2 outer slightly larger than the inner
Morphology Reproductive morphology Flowers Corolla
Petals 4, 8 (in Flora area) or 12, erect, fleshy, exserted, each surrounded by stiff hairs arising from the base
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, in one whorl, inserted in the throat of the calyx-tube, subsessile, alternating with the calyx-lobes; anthers linear to oblong, basi-fixed, included or slightly exserted; pollen sphaeroid, polyforate
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile or subsessile, 1-chambered, glabrous; disc surrounding the base of the ovary, lacking or inconspicuous, cup-shaped; style filiform, inserted laterally, half as long to almost as long as the calyx-tube; stigma minute, ± capitate, papillose
Morphology Reproductive morphology Fruits
Fruit dry, indehiscent, included in the persistent base of the calyx-tube
Morphology Reproductive morphology Seeds
Seed with shiny black, crustaceous testa, the micropyle forming a curved beak; endosperm scanty; embryo straight; cotyledons fleshy.

Native to:

Burundi, Cape Provinces, Ethiopia, Kenya, KwaZulu-Natal, Rwanda, Tanzania, Zaïre, Zimbabwe

Struthiola L. appears in other Kew resources:

First published in Mant. Pl.: 4 (1767)

Literature

Flora Zambesiaca

  • Biblioth. Bot. 27, heft 111: 135 (1934).
  • Domke in Biblioth. Bot. 27, heft 111: 135 (1934).
  • Mant. Pl. Alt.: 4, 41 (1767) nom. conserv.
  • Mant. Pl. Alt.: 4, 41 (1767) nom. conserv.
  • Syst. Nat., ed. 12, 2: 127 (1767)

Flora of Tropical East Africa

  • G.F.P. 2: 259 (1967)
  • Domke in Bibl. Bot. 27(111): 135 (1934)
  • Mant. Pl.: 4 (1767), nom. conserv.
  • Syst. Nat., ed. 12, 2: 127 (1767)

Flora Zambesiaca
Flora Zambesiaca
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