Definitions / Explanation :
$(i)$ Phylloclade
$(ii)$ Aestivation
Definitions / Explanation :
$(i)$ Phylloclade
$(ii)$ Aestivation
$(i)$ In Australian acacia, leaves are compound and feather like pinnately leaflets are small which shed. Petiole becomes flat and green and contains chlorophyll and makes food by photosynthesis. Such a structure is called phylloclade.
$(ii)$ The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation
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- [NEET 2015]