FLOWER DIMORPHISM AND SELF‐INCOMPATIBILITY IN NARCISSUS TAZETTA L.

@article{Dulberger1964FLOWERDA,
  title={FLOWER DIMORPHISM AND SELF‐INCOMPATIBILITY IN NARCISSUS TAZETTA L.},
  author={Rivka Dulberger},
  journal={Evolution},
  year={1964},
  volume={18}
}
Natural populations of Narcissus tazetta L. series bicolores Baker have been found in Israel to consist of plants having two floral types: short-styled and long-styled. In short-styled plants the stigma level is below the lower tier of anthers; in the long-styled plants it is usually at the height of the upper anthers, but may also be situated at any height between the two tiers of anthers or even above the upper one. While each of the two floral types displays variability in style length… Expand
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It is argued that biased style-morph ratios largely result from morph-specific differences in assortative mating. Expand
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The sexual polymorphism tristyly is well documented in three flowering plant families (Lythraceae, Oxalidaceae and Pontederiaceae). Controversy has arisen as to whether the polymorphism exists inExpand
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There is an asymmetry between the morphs where, following selfing, pollen tubes tend to grow further into long-styled compared to short-styling plants, although the difference is not particularly marked, and a qualitative difference in the appearance of pollen tubes is demonstrated for the first time. Expand
Convergent evolution of flower polymorphism in Narcissus (Amaryllidaceae)
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It is concluded that the two heterostylous species of NarcISSus have independent origins, supporting previous hypothesis of convergence of heterostyly in Narcissus and remarkable resemblance of flower features between both species indicates that pollinator activity might have driven flower convergence. Expand
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