Define the following terms: (a) Aestivation (b) Placentation (c) Actinomorphic (d) Zygomorphic (e) Superior ovary (f) Perigynous flower (g) Epipetalous Stamen
(a) Aestivation The term 'aestivation' refers back to the mode wherein sepals or petals are organized in a floral bud with appreciate to different floral members. There are 4 styles of aestivation in vegetation i.e., valvate, twisted, imbricate, and vexillary. (b) Placentation The term 'placentation' refers back to the association of ovules in the ovary of a flower. It is on the whole of 5 types, particularly marginal, basal, parietal, axile, and unfastened central. (c) Actinomorphic Actinomorphic vegetation may be divided into radial halves with the aid of using any radial aircraft passing thru its centre. Examples of those plant life consist of cold and mustard. (d)Zygomorphic Zygomorphic flora are the ones plants which may be divided into comparable halves via way of means of a unmarried vertical aircraft. Examples of those plant life consist of pea and beans. (e) Superior ovary Superior ovary plant life are the ones plant life wherein the gynoecium is gift at the best position, at the same time as different floral elements are organized underneath it. A flower with this association is defined as hypogynous. Examples encompass brinjal and mustard. (f) Perigynous flower In perigynous flora, the gynoecium is gift withinside the centre and the relaxation of the floral components are organized on the rim of the thalamus on the identical level. Examples consist of plum and rose. (g) Epipetalous Stamen Epipetalous stamens are stamens connected to the petals. They are observed in brinjal.
