e-Key v3 - Lobostemon
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Boraginaceae - Boraginoideae - Echieae - Lobostemon Lehm.

Description :

  • Subshrubs or shrubs, variably scabrid, hispid or villous, rarely almost glabrous
  • Leaves alternate, sessile, margins entire
  • Flowers in terminal or axillary scorpioid cymes, elongating in fruit, or in pseudospikes; usually with conspicuous bracts
  • Calyx with 5 sepals, divided to base or nearly so, rarely joined for part of their length, similar or dissimilar
  • Corolla blue, ageing pink, cylindric or funnel-shaped, naked in throat, densely hairy scales, ridges or protuberances present at bases of filaments; lobes 5, equal or 2 lobes larger than other 3, erect or spreading
  • Stamens exserted or included; filaments equal or unequal, glabrous; anthers subglobose, obtuse
  • Disc flat or convex
  • Ovary 4-lobed; gynobase disc-like; style simple, gynobasic, hairy or glabrous; stigma minutely bilobed
  • Fruit of 4 nutlets; nutlets ovoid-trigonous or acuminate, rugose-tuberculate to almost smooth
  • x = 7 (polyploidy)

Nomenclature:

  • Lobostemon Lehm.
    • Lehmann: 378 (1830)
    • Candolle: 4 (1846)
    • Bentham: 863 (1876)
    • Gürke: 128 (1897)
    • Wright: 25 (1904)
    • Levyns: 393 (1934)

Distribution & Notes:

  • Southern Africa : Species 30, endemic in Northern, Western and Eastern Cape

References:

  • BENTHAM, G. 1876. Boragineae . In G. Bentham & J.D. Hooker, Genera plantarum 2. Reeve, London
  • CANDOLLE, A.P. DE. 1846. Borragineae . Prodromus 10. Victor Masson, Paris
  • GÜRKE, M. 1897. Borraginaceae . Die natürlichen Pflanzenfamilien 4, 3a
  • LEHMANN, J.G.C. 1830. Plantas quasdam novas in horto hamburgensium botanico cultas. Linnaea 5
  • LEVYNS, M.R. 1934. A revision of Lobostemon Lehm., and a discussion of the species problem. Journal of the Linnean Society, Botany 49
  • WRIGHT, C.H. 1904. Boragineae . Flora capensis 4,2