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. Species Sample size n Range of sugars % Sucrose Fru Glu Suc (Fru + Glu) L. silenoides group L. dolomitica subsp. dolomitica 2 4-9 12-14 77-84 3.35-5.25 subsp. lewisiana 4 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 TOP