Answer:
(a) Bract and
Bracteolate Bract is a leaf like structure in the axil, i.e., at the base of
whichflowers are borne. They can be small or scaly, green and coloured and
usually single,whereas bracteolate are bract like structures borne on the stalk
of a flower.
(b)Pulvinus and
Petiole Pulvinus is the leaf base, which is the proximal swollen regionwith
which a leaf is attached to the stem. Petiole is cylindrical or sub-cylindrical
stalkwhich connects the leaf base with the lamina.
(c) Pedicel
and PeduncleThe stalk of a flower is known as pedicle, whereas the stalk of
whole inflorescence is known as peduncle.
(d) Spike
and Spadix In spike inflorescence, the flowers are sessile that develop on
anelongated peduncle in acropetal succession, e.g., Adhatoda. The peduncle
isnon-fleshy. The spandex inflorescence is like spike, but it is covered by one
to a few largebracts called spates, e.g., Colocasia. The peduncle is fleshy and
its optical portion isnaked, i.e., without flowers.
(e) Stamen
and StationedThe male reproductive organs or microsporophyll?s of a flowerare
called stamen. A fully sterile under developed or abrtive stamen is called
astaminoid, e.g., Verbascum.
(f) Pollen
and Polonium Microspore of an angiospermic flower is known as pollen. It
ishaploid, whereas a mass of pollen grains from the same anther constitute the
polliniumas in Calotropis.
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