Question

Which inflorescence has biparous cyme ending in uniparous cymes?

• A. Cyathium
• B. Verticillaster
• C. Hypanthodium
• D. Strobile

Answer 1

The correct option is B Verticillaster

A. Cyathium looks like a single flower. A cup-shaped involucre formed by bracts encloses a single female flower and a number of male flowers. Each male flower is represented by a single stamen while a single pistil represents a female flower. It is a type of cymose inflorescence. The example is Poinsettia.

B. Verticillaster is a cluster of sessile or subsessile flowers borne on a biparous cyme (dichasial) ending in uniparous cyme (monochasial) in the form of condensed whorl on either side of the node. It is a type of cymose inflorescence. The example is Tulsi.

C. Hypanthodium is fleshy receptacle forming a hollow cavity with an apical opening called ostiole. The flowers are developed on the inner wall of the hollow cavity. It is a type of cymose inflorescence. The example is banyan.

D. Strobile is a type of spike in which each flower is borne in the axil of a persistent membranous bract with the pistillate inflorescence of the hop.

So, the correct answer is 'Verticillaster'.