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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Hyacinthaceae - Drimiopsis Lindl. & Paxton

Description:

  • Perennial, deciduous, bulbous herbs, occasionally forming clumps
  • Bulb globose to ovoid; scales imbricate, fleshy
  • Leaves 1-several, contemporary with flowers; with or without a pseudopetiole; narrowly ovate to cordate, thin or fleshy, acute; folded and clasping below; margin entire, rarely minutely crenate; often spotted; glabrous or pubescent
  • Inflorescence 1-several, an axillary, cylindrical raceme(s) or spike(s); peduncle erect; bracts minute
  • Flowers green, white, pink or purple, small, many; pedicels very short or absent
  • Tepals free, cohering below, forming a tube; lobes erect, with small spreading or incurved, hooded apices, narrowly oblong; persistent
  • Stamens 6, arising from base of tepals, included; anthers versatile, introrse
  • Ovary sessile, oblong, with 2 basal ovules in each locule; style terete; stigma apical
  • Fruit an obovoid capsule, deeply 3-angled, rounded above; dehiscing loculicidally
  • Seeds semiglobose, flat on abaxial side, black, shiny, verrucose
  • x = 10, 11 (aneuploids, high polyploidy)

Classification Notes:

  • In this account, the concept of Drimiopsis includes that of the genus Resnova
  • This differs from Müller-Doblies & Müller-Doblies (1997) where the genus Resnova is resuscitated and is separated from Drimiopsis by its ± spreading tepal lobes, biseriate stamens, subulate filaments and longer perianth
    • Several new species of Drimiopsis were also described in this publication, but before these can be incorporated type material/cited material needs to be accessible

Nomenclature:

  • Drimiopsis Lindl. & Paxton
    • Lindley & Paxton: 73, t. 172 (1851)
    • Baker: 473 (1897)
    • Jessop: 151 (1972)
    • Stedje: 45 (1993)
    • Stedje: 6 (1996)
    • Hutchings et al.: 42 (1996)
    • Müller-Doblies & Müller-Doblies: 58 (1997)
  • Resnova Van der Merwe
    • Van der Merwe: 41 (1946)

Distribution & Notes:

  • Global: Species ± 15, Africa
  • Southern Africa: Species 5, widespread in eastern region, Northern Province, North-West, Gauteng, Mpumalanga, Swaziland, KwaZulu-Natal, Eastern Cape
    • Drimiopsis, in its broad sense, occurs in grassland, forest margins, often in rocky, shady areas

Additional Notes:

  • Used medicinally and horticulturally

References: