e-Key <span id="jodit_selection_marker_1703071153680_44949264342672546" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Eriosperm<span id="jodit_selection_marker_1703071153680_02237799820036157" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

MONOCOTYLEDON - LILIIDAE - ASPARAGALES - Eriospermaceae

Compiled by N.L. Meyer

Description:

  • Perennial herbs, small to medium-sized; with single to multiple globose or irregularly shaped, hypocotyledonary tuber, sometimes with a proliferation of rhizomes or stolons; internally white, yellow, pink or purplish red, with one or more apical or lateral to basal growing points, each protected by a neck of sheathing fibrous remains of leaf bases
  • Leaves 1-several, basally concentrated, synanthous or hysteranthous, erect or prostrate, glabrous or pubescent, with a distinct petiole-like base; lamina linear to lanceolate, ovate or orbicular, with complex appendages or enations sometimes produced from upper surface; also some scale-like, reduced basal leaves
  • Peduncle erect, straight or sometimes flexuose, unbranched, terete, naked
  • Inflorescence a simple raceme, few-many-flowered, cylindrical to corymbose, dense or lax, upper flowers sometimes sterile or aborted
  • Bracts minute, solitary, basal, subtending a single flower
  • Pedicels short or long, articulated at apex
  • Flowers bisexual, regular, small, diurnal; triangular in outline, rotate, campanulate or recurved, 6-14 mm in diameter
  • Tepals 3 + 3, free, dimorphic with outer spreading and inner erect, or all equal to subequal, connate at base only, uninerved, persistent, white, pink, yellow or green
  • Stamens 3 + 3, hypogynous, adnate to base of tepals; filaments filiform to broadly lanceolate; anthers peltate, dorsifixed, versatile, subglobose to oval, introrse
  • Ovary superior, sessile, 3-locular, each with 2-6 axile ovules; style 1, terete; stigma apical, small
  • Fruit a loculicidal, turbinate to ovoid capsule, emarginate, dehiscent, 3-valved, valves persistent
  • Seeds 6-12, oval to comma-shaped; testa fawn, densely covered with unicellular white hairs up to 8 mm long, turning brown with age
  • x = 7 (10, 12)

Nomenclature:

  • Eriospermaceae
    • Endlicher: 156 (1836) as Eriospermeae
    • Endlicher: 90 (1841)
    • Dahlgren et al.: 168 (1985)

Distribution & Notes:

  • Global: Genus 1, species 102, Africa south of the Sahara
  • Southern Africa: Genus 1, species ± 100 species, concentrated mostly in Western Cape

References:

  • DAHLGREN, R.M.T., CLIFFORD, H.T. & YEO, P.F. 1985. The families of the monocotyledons. Springer-Verlag, Berlin
  • ENDLICHER, S.L. 1836. Eriospermeae. Genera plantarum secundum ordines naturales disposita. Beck, Vienna
  • ENDLICHER, S.L. 1841. Enchiridion Botanicum. W. Engelmann, Leipzig

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