What is THE INFLORESCENCE?
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THE INFLORESCENCE
The arrangement and distribution of flowers over a plant
called inflorescence.
The inflorescence can be of following three types
1. Racemose Inflorescence
In racemose type of inflorescence, the main axis continues to
grow and the flowers are borne laterally in an acroprtal
succession (the older flowers are found towards the base and
younger ones at the apex) or centripetal (older towards
periphery and younger towards centre).
2. Cymose Inflorescence
In cymose inflorescence, the tip of the main axis terminate
in a flower and further growth continues by one or
lateral branches, which also behave like the main axis.
The arrangement of flowers in either basipetal
(younger flowers occupy basal position, while older
flowers towards the apex) or centrifugal (older
towards centre and younger towards periphery).
3. Special Inflorescence
It mainly involves highly modified and densely
crowded inflorescences.
The special type of inflorescence can be divided into
following types
i. Cyathium
It is highly reduced and is a cup-shaped involucre of
five bracts having nectariferous glands. A single
la female flower is present in the centre of the cup
an scorpioid male flowers surrounded this female
flower. Every male flower is represented by a single
stalked stamen borne in the axil of a scaly bract,
ii. Verticillaster
These are two clusters each having 3-9 flowers that
develop on a node in the axils of opposite leaves, e.g.,
Ocimum sanctum (basil).
iii. Hypanthodium
In this type, the main axis is condensed into a cup or
flask-shaped, fleshy receptacle. It bears three kinds of
flowers, i.e. male flowers (towards the pore), female
flowers (towards the base) and neutral flowers
occurs in between male and female flowers, e.g.,
peepal (Ficusrelegiosa) and banyan (Ficus
benghalensis).