Q131
The technical term used for the androecium in a flower of China rose (Hibiscus rosa sinensis) is:
Correct Answer
Option A
Solution
(a) Hibiscus belongs to family Malvaceae. It possess numerous stamens that are called monadelphous.
Morphology of Flowering Plants
Q132
Ovary is half-inferior in the flowers of:
Correct Answer
Option B
Solution
(b) A flower in which floral parts arise from around the ovary is called perigynous.
In this, the ovary is half inferior and half superior.
It can be seen in the flowers of plum, peach etc.
Q133
In unilocular ovary with a single ovule the placentation is :
Correct Answer
Option B
Solution
(b) In basal type of placentation, the ovary is unilocular with a single ovule.
In this, the placenta is at the base of the ovary.
It is seen in Polygonum.
Q134
Flowers are zygomorphic in :
Correct Answer
Option B
Solution
(b) When a flower can be divided into two similar halves only in one particular vertical plane, it is zygomorphic, e.g. pea, gulmohar, bean, etc.
Q135
In china rose the flowers are :
Correct Answer
Option D
Solution
(d) China rose (Hibiscus): actinomorphic, hypogynous, twisted (contorted) aestivation.
Q136
Flowers are unisexual in
Correct Answer
Option A
Solution
(a) Cucumber (Cucurbitaceae) has unisexual flowers (monoecious).
Q137
Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?
Correct Answer
Option A
Solution
(a) Six: china rose, mustard, brinjal, potato, onion and tulip have superior ovary.
Q138
Keel is the characteristic feature of flower of:
Correct Answer
Option A
Solution
(a) Indigofera (Fabaceae) has keel — two fused anterior petals.
Q139
Tricarpellary syncarpous gynoecium is found in flowers of
Correct Answer
Option A
Solution
(a) Liliaceae has tricarpellary syncarpous gynoecium.
Q140
A family delimited by head type of inflorescence is
Correct Answer
Option B
Solution
(b) Asteraceae has capitulum (head) inflorescence surrounded by involucre of bracts.
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