Bisexual flowers staminode










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The Correlation Between Development Of Atypical Bisexual

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Homeosis in araceae flowers

These two zones are separated by a zone of sterile male flowers. D Female flowers prior to the formation of the stigmatic surface. A Early stage of initiation of carpels and staminodes on ABFs. The average number of staminodes decreases as the number of carpels increase. At this point, there is no discontinuity in the phyllotactic pattern of the flowers across the different zones of the inflorescence. Huang and Ma, . Running et al. Note the presence of male flowers with four or five stamens see numbers. Hierarchical developmental morphology. University of Reading. Staminodes and carpels are inserted on the same whorl in ABFs.

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Description: It is important to note that the ABFs are not true functional bisexual flowers. Canadian Journal of Botany. Quantitative analysis The number of appendices in male, female and sterile flowers were counted on 11 young inflorescences 5—6 flowers per inflorescence. The pattern of floral development on the inflorescence of P. This is similar to what has been observed in P. Stamen primordia are initiated simultaneously on the periphery of more-or-less circular floral primordia Fig. D Intermediate zone of the inflorescence showing female flowers F and staminodes St. A Early stage of initiation of carpels and staminodes on ABFs. Additionally, the number of staminodes in ABFs is always lower than the number of staminodes in sterile male flowers. Even though our statistical analyses cannot predict the precise number of homeotic transformations that will take place in a given ABF, they show that there is some regularity in the homeotic transformations occuring species of Philodendron. The average number of staminodes is significantly different between bisexual flowers having one-to-five carpels and flowers having six-to-ten carpels.
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