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Pollination Biology of Lapeirousia subgenus Lapeirousia (Iridaceae) in southern Africa; floral divergence and adaptation for long-tongued fly-pollination


Abstract | Materials and Methods | Results | Discussion | Literature

Table 3. Nectar sugars in subgenus Lapeirousia. Nectar analyses for subgenus Lapeirousia were provided by B.-E. van Wyk, Rand Afrikaans University, Johannesburg, South Africa. Taxa of subgenus Lapeirousia are grouped according to flower type and pollinator class as in Table 2.

SpeciesSample
size n
Range of sugars %Sucrose
FruGluSuc(Fru + Glu)
L. silenoides group
L. dolomitica subsp.
dolomitica
2 4-9 12-14 77-84 3.35-5.25
subsp. lewisiana4 5-8 14-19 74-81 2.85-4.26
1 12 25 63 1.7
L. jacquinii 1 8 17 75 3.00
L. oreogena
4 11-17 19-25 58-69 1.38-2.26
L. pyramidalis subsp.
regalis
3 8-12 14-17 74-81 2.45-3.55
3 4-21 12-36 48-84 0.92-5.25
L. silenoides 3 5-8 18-27 65-77 1.86-3.35
L. violacea 1 9-13 15-16 71-76 2.45-3.17
L. divaricata group
L. barklyi 1 36 40 24 0.32
L. divaricata 1 18 28 54 1.17
L. exilis 2 11-16 19-25 59-70 1.44-2.33
L. montana 3 6-24 16-30 46-88 0.85-4.00
L. plicata 2 15-16 21-31 54-63 1.17-1.70
L. pyramidalis subsp.
pyramidalis
4 5-11 12-22 71-73 2.45-4.88
L. spinosa 1 13 20 67 2.03
L. fabricii group
L. anceps 3 6-20 20-26 54-74 1.17-2.85
L. arenicola 4 5-11 10-18 71-85 2.45-5.67
L. fabricii 4 12-21 21-26 53-67 1.13-2.03
L. macrospatha 1 34 43 23 0.29
L. simulans 1 18 23 59 1.44
L. verecunda 2 8 18 74 2.85

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