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
Cotyledon of maize grain is called
Perianth is the condition in which
In plants like mint and jasmine, a selender lateral branch arises from the base of the main axis and after growing aerially for sometimes, arch downwards to touch the ground. This slender branch is called
Choose the correct pair.