e-Key <span id="jodit_selection_marker_1702884436266_9400100045290414" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Euch<span id="jodit_selection_marker_1702884436266_0861525099096081" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aetis
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Rutaceae - Euchaetis Bartl. & H.L.Wendl.

Description:

  • Shrubs or shrublets, erect, and usually single-stemmed at base
  • Leaves alternate or opposite, linear, linear-lanceolate, to orbicular, flat, round-backed, subcomplicate, or subulate; erect or spreading
  • Flowers terminal, solitary or 2-nate or aggregated into heads of up to 60 florets, flowering at different times and mostly without any conspicuous involucral leaves; flowers subtended by 1, or rarely 2, bracts and 2 bracteoles
  • Petals 5, distinctly divided into claw and limb; claw transversely bearded above, ciliate on margins and narrowing below, forming a cage around reproductive parts of flower; limb white or pale pink, usually spreading
  • Stamens 5; filaments usually ± 1 mm long, glabrous, acicular; anthers dorsifixed, apical gland globose, minute; staminodes 5, rarely 0, usually a minute vestigial sessile gland
  • Disc enveloping, obvallate or spreading, exceeding ovary
  • Ovary 5-carpellate; apices globose; stigma capitellate or capitate-globose; style becoming 0.5-1.6 mm long, glabrous, erect, or, at some stage, deflexed
  • Fruit (3)5-carpellate; horns (0.5-)1-2(-7) mm long
  • x = 7 or 14 (polyploidy)

Nomenclature:

  • Euchaetis Bartl. & H.L.Wendl.
    • Bartling & Wendland: 15 (1824)
    • Williams: 157 (1981)

Distribution & Notes:

  • Southern Africa: Species 23, concentrated in the Western Cape

References:

  • BARTLING, F.G. & WENDLAND, H.L. 1824. I. Diosmeae descriptae et illustratae. Beiträge zur Botanik 1
  • WILLIAMS, I. 1981. Studies in the genera of the Diosmeae (Rutaceae). A review of the genus Euchaetis. Journal of South African Botany 47