Describe the arrangement of floral members in relation to their insertion on thalamus.
Answers
Answer:
Thalamus show 4 nodes and 3 compressed internodes.
1st ane outermost node show Sepals
2nd node show petals
3rd node show stamens
4th and innermost node show whorl of carpels
On the basis of ovary with respect to thalamus, the flowers are classified as: hypognous, perigynous and epigynous.
Step by step explanation:
1) Hypognous Flowers: In these flowers, the ovaries are situated in the upper circumference on the thalamus. The other floral parts are situated at the lower part. Here, the ovaries are superior. Example: Mustard, China Rose
2) Perigynous Flowers: In this type, the ovary is situated in the center and the other floral parts are arranged around the periphery of the thalamus. Example: rose, plum
3) Epigynous Flowers: In this case, the thalamus grows around the periphery of the ovary, thereby compressing it to the wall. The floral parts are present above the ovary. Example: cucumber.