Question

In Tulsi (Ocimum) of labiatae, the inflorescence is

• A. Cyathium
• B. Verticillaster
• C. Hypanthodium
• D. Raceme of racemose

Answer 1

Answer: (B)

Verticillaster

Verticillaster is a special type of inflorescence which is similar to condensed dichasial cyme inflorescence. Each dichasial cyme changes to monochasial cyme of scorpoid type.

It is a raceme of verticals (whorls of flowers) borne on rectangular axis in the axils of opposite leaves. At each node, there are two verticals. Each whorl consists of two clusters of 3-9 flowers, e.g., Ocimum (Tulsi), Saluia, Leucas.
Therefore, the correct option is B.