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In Hibiscus rosa-sinensis there is an ad...

In Hibiscus rosa-sinensis there is an additional floral whorl known as

A

Calyx

B

Involucre

C

Epicalyx

D

Obdiplostemonus layer

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The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Plant:** The question refers to *Hibiscus rosa-sinensis*, commonly known as hibiscus. 2. **Understand Floral Whorls:** Flowers typically have several whorls, including sepals (calyx), petals (corolla), stamens (androecium), and carpels (gynoecium). 3. **Determine the Additional Whorl:** In *Hibiscus rosa-sinensis*, there is an additional floral whorl known as the "apicalyx." 4. **Define Apicalyx:** The apicalyx is an additional layer that is found exterior to the calyx. It is composed of involucra, which are the units that make up this additional whorl. 5. **Conclusion:** The correct answer to the question is that in *Hibiscus rosa-sinensis*, there is an additional floral whorl known as the "apicalyx." **Final Answer:** Apicalyx ---
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