The presence of corollary corona, sagittate anthers and dumb-bell | Filo
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Class 12

Biology

Reproduction

Sexual Reproduction in Flowering Plants

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The presence of corollary corona, sagittate anthers and dumb-bell shaped stigma are the characteristic features of .............

  1. Musa aphrodisiac
  2. Hibiscus rosa-sinensis
  3. Catheranthus roseus
  4. Rauenala madagascariensis
Correct Answer: Option(c)
Solution: The flowers are bisexual and actinomorphic. The calyx is synsepalous and 5-lobed. The corolla is sympetalous and 5-lobed. The stamens are adnate to the corolla tube (or perigynous zone). The anthers are adherent to the stigma. The gynoecium consists of a single compound pistil of 2 carpels which are united by a single style. Each ovary has numerous ovules on marginal placentation. 5 glands or an annular ring is usually found at the base of the ovary. 
All these characteristic features are observed in Catheranthus roseus.
So, the correct answer is 'Catheranthus roseus'
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