Ontogeny,function and evolution of extreme floral construction inMonimiaceae |
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Authors: | Peter K. Endress |
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Affiliation: | (1) Institut für Systematische Botanik der Universität, Zollikerstr. 107, CH-8008 Zürich, Switzerland |
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Abstract: | In at least 4 genera of theMonimiaceae (Tambourissa, Wilkiea, Kibara, Hennecartia) extremely specialized flowers with a hyperstigma occur, i.e. a secretory zone in the narrow entrance of the floral cup. The mucilaginous secretion of the hyperstigma and of the carpels produces a transmitting medium for pollen tubes continuous from the mouth of the floral cup to the ovules. As to their floral morphology, the two extreme types,Hortonia andTambourissa, are connected gradually by various other genera. Possible evolutionary trends and systematic problems are outlined. |
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Keywords: | Monimiaceae Siparunaceae Atherospermataceae Tambourissa Wilkiea Kibara Hennecartia Floral morphology floral development floral anatomy pollination hyperstigma Evolutionary aspects systematics |
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