Question

difference between actinomorphic and zygomorphic... also explain racemose

Answer 1

Most flowers are actinomorphic ("star shaped", "radial"), meaning they can be divided into 3 or more identical sectors which are related to each other by rotation about the centre of the flower. Typically, each sector might contain one tepal or one petal and one sepal and so on.

Answer 2

hi this is sai, 
                    actinomorphic -the flowers divided into two equal parts when cut 
from any side passing through the centre
                 ex- hibiscus,brassica datura ,chilli
                    zygomorphic-when we cut only in one plane
                 ex-pea,bean gulmohor, cassia