define perianth , astivation , placentation in plants
Answers
perianth :-
The floral envelope or the outer part of the flower in which the segments are divisible into calyx and corolla.
Aestivation :-
The term ‘aestivation’ refers to the mode in which sepals or petals are arranged in a floral bud with respect to other floral members. There are four types of aestivation in plants i.e., valvate, twisted, imbricate, and vexillary.
Placentation :-
The term ‘placentation’ refers to the arrangement of ovules within the ovary of a flower. It is primarily of five types, namely marginal, basal, parietal, axile, and free central.
hello mate!!
Perianth-it is the outer part of the flower.
Astivation-it is the arrangement of petals and sepals in flower bud before it opens.
Placentation in plants-it is the arrangement of ovules in the ovary.
hope it helps!!