Question

Inflorescence, which begins as a dichasial cyme and ends in a monochasial cyme, is called

• A. cyathium
• B. biparous
• C. verticillaster
• D. thyrsus

Answer 1

Answer: (C)

verticillaster

Answer 2

In biparous or dichasial cyme, a terminal flower is subtended by two lateral branches which also end in flowers. The process is repeated. Cyathium has a small conical receptacle surrounded by an involucre of generally five green or coloured bracts having nectariferous glands. Internally, the inflorescence contains pedicellate achlamydeous and unisexual flowers of both the types, male and female. Verticillaster is an inflorescence which has two clusters, each having 3 - 9 flowers, develop on a node in the axils of opposite leaves. Each cluster consists of a dichasial cyme with monochasial branches. Thyrsus is cymose clusters borne acropetally on an axis.