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Question

An infloresence with saucer shaped open receptacle bearing flowers like a hypanthodium, found in Dorstenia is called as

A
Hypanthodium only
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B
Cyathium
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C
Coenanthium
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D
Thyrns
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Solution

The correct option is D Coenanthium
An inflorescence with a nearly flat receptacle having slightly upcurved margins is called as coenanthium. It is an inflorescence with saucer-shaped open receptacle bearing flowers like a hypanthodium, it is found in Dorstenia. Dorstenia is unique when compared to other members of the Moraceae because of their extremely diverse growth habits and life forms.The majority of the Moraceae is woody perennials, while Dorstenia is dominated by herbaceous, succulent or suffrutescent perennials and only 10% exhibit the typical woody habit of the Moraceae. Dorstenia also has a striking reproductive structure composed of clusters of bisexual flowers on disc-shaped receptacles that are often adorned with variable size and shape bracts.
Therefore, the correct answer is option C.


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