Question

The peduncle is compressed to a flattened or convex disc, the receptacle and the flowers (florets) are sessile this represents ....... inflorescence

• A. Spadix
• B. Umbel
• C. Capitulum
• D. Hypanthodium

Answer 1

The correct option is C Capitulum

The peduncle is compressed to a flattened or convex disc, the receptacle and the flowers (florets) are sessile this represents capitulum inflorescence. A flower head or capitulum is a very contracted raceme in which the single sessile flowers share are borne on an enlarged stem. Capitulum can be used as an exact synonym for pseudanthium and flower head, however its use is generally but not always restricted to the Asteraceae family. At least one source defines it as a small flower head. Flower head is a special type of inflorescence in which anything from a small cluster to hundreds or sometimes thousands of flowers are grouped together to form a single flower-like structure. Pseudanthia take various forms. The individual flowers of a pseudanthium commonly are called as florets.

Therefore, the correct answer is option C.