Flower morphology of the resurrection plant Chamaegigas intrepidus Dinter and some of its potential pollinators |
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| Authors: | Markus Woitke Rainer Wolf Wolfram Hartung Hermann Heilmeier |
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| Affiliation: | 1. Julius-von-Sachs-Institut für Biowissenschaften der Universität Würzburg, Lehrstuhl Botanik I, Julius-von-Sachs-Platz 2, D 97082 Würzburg, Germany;2. Theodor-Boveri-Institut für Biowissenschaften der Universität Würzburg, Lehrstuhl Zoologie I, Am Hubland, D 97074 Würzburg, Germany;3. Interdisziplinäres Ökologisches Zentrum, Technische Universität Bergakademie Freiberg, Leipziger Str. 29, D 09599 Freiberg/Sachsen, Germany;1. Bioinformatics Centre, Bose Institute, P 1/12, C.I.T. Scheme VII M, Kolkata 700 054, West Bengal, India;2. Department of Physical Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, Nadia, West Bengal, India;1. Department of Pharmaceutical Sciences, College of Pharmacy, South Dakota State University, Brookings, SD 57007, USA;2. Department of Pharmacology, Faculty of Medicine, University of Crete, Voutes, Heraklion 71003, Crete, Greece;1. University of Quebec at Montreal, Canada;2. Department of Wildlife, Fish, and Environmental Studies, SLU, Sweden;3. Department of Ecology, SLU, Sweden;1. Departamento de Engenharia Mecânica, Instituto Superior de Engenharia, Universidade do Algarve, Campus da Penha, 8005-139 Faro, Portugal;2. ADAI-LAETA Departamento de Engenharia Mecânica, Universidade de Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal;3. Energetic Group, ETSII-University of Málaga, C/Doctor Pedro Ortiz Ramos s/n, 29013 Málaga, Spain;1. Department of BioScience, Tokyo University of Agriculture 1-1-1 Sakuragaoka, Setagayaku, Tokyo, 156-8502, Japan;2. Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka, 567-0085, Japan;3. Department of Biology, Washington University in St. Louis, St. Louis, MO, 63130-4899, USA |
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| Abstract: | The resurrection plant Chamaegigas intrepidus Dinter (Scrophulariaceae) is a rare endemic species growing in ephemeral rock pools on isolated granite outcrops in Central Namibia. Previous studies suggested a high degree of gene flow within individual pools. Therefore, floral morphology, pollination and potential pollinators of the plant species were studied while the plants were at full flower set.The zygomorphous, intensively scenting flowers carry dense layers of trichomes (400–1600 mm−2) on the lower lip, similar to well-known oil-flowers. Four species of potential pollinators could be found. Two of them the Hymenoptera, Apis mellifera and Liotrigona bottegoi, were found to be rare, whereas beetles of the genus Condylops spec. (Condylops erongoensis and a new species) showed up with numbers up to 50 individuals m−2 in some pools, visiting the flowers most frequently. Individuals of Liotrigona and Condylops were proven to carry pollen of Chamaegigas after their flower visits. The results are discussed in relation to the genetic variability of the plant and the phenomenon of pollen limitation in rare plant species. |
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| Keywords: | Endemic plant species Pollen limitation Trichomes Liotrigona Condylops Malachidae |
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