e-Key v3 - Ke<span id="jodit_selection_marker_1706618023937_9406233070837391" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>y to Convolvul<span id="jodit_selection_marker_1706618023937_7185870734360511" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Leaves minute, scale-like or absent
  • Yellowish twining parasites
  • Flowers small, usually in clusters, often many
 Cuscuta
b
  • Leaves well developed, green
 002
Backtrack a
  • Ovary 2- or 4-lobed or -cleft
  • Styles 2, inserted between lobes of ovary
  • Prostrate herbs
 002
b
  • Ovary not deeply lobed
  • Style simple or if 2, then terminal
  • Plants of various habit
 002
Backtrack a
  • Ovary 2-cleft, with 2 ovules in each locule
 Dichondra
b
  • Ovary 4-cleft, with 1 ovule in each locule
 Falkia
Backtrack a
  • Styles 2, free or ± united at base
 002
b
  • Style 1, stigmas globose to linear
 002
Backtrack a
  • Styles forked
  • Stigmas 4, linear or subclavate
 Evolvulus
b
  • Styles simple
  • Stigmas 2, peltate or capitate
 002
Backtrack a
  • Leaves greyish velvety pubescent above, densely coated with golden brown hairs beneath
 Bonamia
b
  • Leaves glabrous to densely hirsute on both surfaces, but never as above
 Seddera
Backtrack a
  • Pollen smooth or with folds or ridges, but not spinulose
 002
b
  • Pollen spinulose
 002
Backtrack a
  • Stigmas filiform, terete or subclavate
 002
b
  • Stigmas globose, ovate, oblong or elliptic
 002
Backtrack a
  • Bracteoles small or narrow, usually ± remote from calyx
 Convolvulus
b
  • Bracteoles large, ± enclosing calyx as an involucre
 Calystegia
Backtrack a
  • Ovary 1-locular
  • Stigmas ovate
  • Sepals unequal
  • Corolla white or cream with purple centre
 Hewittia
b
  • Ovary 2(4)-locular
 002
Backtrack a
  • Flowers in pedunculate, subglobose heads, usually blue
  • Leaves entire or slightly lobed, cordate
 Jacquemontia
b
  • Flowers in cymes, dichasia, or solitary, white or yellow, often with dark centre
  • Leaves usually lobed or dissected, sometimes auricled at base, rarely entire
 002
Backtrack a
  • Anthers at anthesis helically twisted
  • Pollen tricolpate
  • Leaves entire or deeply palmately or pinnately lobed or compound
 Merremia
b
  • Anthers at anthesis straight
  • Pollen pantoporate
  • Leaves oblong to linear-lanceolate, much longer than broad with hastate, sagittate or truncate base
 Xenostegia
Backtrack a
  • Plants covered in all parts, except corollas, with stellate hairs
  • Stigmas oblong
 Astripomoea
b
  • Plants glabrous to densely hairy, but never with stellate hairs
  • Stigmas biglobose or 3-lobed
 002
Backtrack a
  • Fruit completely enclosed by the much enlarged calyx
  • Pericarp thin, opening irregularly
  • Seeds 4
  • Leaves with dense black glandular dots on lower surface
 Stictocardia
b
  • Fruit dehiscent or indehiscent, not as above
  • Leaves without black glandular dots below
 002
Backtrack a
  • Stamens arising directly from corolla tube
  • Style not completely caducous in fruit
 Ipomoea
b
  • Stamens arising from scales situated near base of corolla tube
  • Style completely caducous in fruit
 Paralepistemon

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