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Akhila R., Sahu Aishwarya, Dwivedi Anurag, Nayak Nihar Ranjan, Dixit Ashwini Kumar, Subramaniam Shweta, Chaurasia Bhaskar
Keywords: Floral abnormality, Petaloidy, Homeosis, Amaryllidaceae, n Zephyranthes rosean
Floral abnormalities arising from alterations in organ identity provide valuable insights into developmental plasticity in angiosperms. Members of Amaryllidaceae are known to exhibit morphological variability; however, species-level documentation of floral homeotic abnormalities remains limited. Zephyranthes rosea Lindl., a widely cultivated and naturalized ornamental species, typically bears flowers with six tepals and six fertile stamens. During field observations in central India, a rare floral abnormality was recorded in which one stamen showed a petaloid transformation, appearing as a flattened, tepal-like structure lacking anther differentiation, while the remaining floral organs were normal. To the best of our knowledge, this represents the first documented report of a petaloid stamen in Z. rosea. The observation is discussed in the context of floral homeosis and developmental plasticity in Amaryllidaceae.
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Department of Botany, Guru Ghasidas Vishwavidyalaya, Bilaspur, India