Question

Among Bitter Gourd, Mustard, Brinjal, Pumpkin, China Rose, Lupin, Cucumber, Sunn Hemp, Gram, Guava, Bean, Chilli, Plum, Petunia, Tomato, Rose, Withania, Potato, Onion, Aloe and Tulip, how many plants have hypogynous flowers?
A. Eighteen
B. Six
C. Ten
D. Fifteen

Answer 1

Given the situation of the calyx, corolla, and androecium regarding the ovary on the thalamus, the flowers are portrayed as hypogynous, perigynous, and epigynous. The blossom is depicted as hypogynous if the gynoecium possesses the most noteworthy position while different parts are arranged beneath it. Examples: Malvaceae, Annonaceae, mustard, china rose, and brinjal.

Complete step by step answer: Flowers having a place with the accompanying families have hypogynous blossom, wherein the ovary is
prevalent:
- Cruciferae (mustard family): Presence of false septum, tetradynamous condition are the characteristic features.
-Solanaceae (brinjal, stew, Petunia, potato, tomato, Withania): Oblique ovary, swollen placenta, axile placentation are the characteristic features.
-Fabaceae (lupin, gram, sun hemp, and bean): Also known as Leguminosae, marginal placentation is found, the presence of nodules in the roots are the characteristic features.
-Liliaceae (onion, aloe, tulip): The presence of sulfur-containing compounds, epiphyllous conditions are the characteristic features.
-Malvaceae (china rose): Monadelphous, presence of epicalyx are the characteristic features.
Hence, option D is the right answer.

Note: a. In hypogynous flowers, the perianth and stamens are located beneath the
gynoecium(female reproductive unit) the ovary is better than these organs, and the staying botanical organs emerge from underneath the purpose of the beginning of the carpel.
b. In perigynous flowers, a hypanthium (a botanical cylinder framed from the combination of the
stamens, petals, and sepals) is joined beneath the gynoecium and encompasses the ovary; the ovary is prevalent, and the free pieces of the petals, sepals, and stamens are connected to the edge of the hypanthium.
c. In epigynous flowers, the hypanthium is melded to the gynoecium.