Question:
The inflorescence found in the family Euphorbiaceae with achylmaceous, unisexual flowers is
The inflorescence found in the family Euphorbiaceae with achylmaceous, unisexual flowers is
Show Hint
In Euphorbiaceae, the cyathium is a reduced, cup-like inflorescence containing unisexual flowers, giving the appearance of a single flower to attract pollinators.
Updated On: Jun 19, 2026
- Verticellaster
- Cyathium
- Solitary cyme
- Hypanthodium
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understand inflorescence.
Inflorescence is the arrangement of flowers on a plant. Different plant families have characteristic types of inflorescence.
Step 2: Characteristics of Euphorbiaceae.
The family Euphorbiaceae (spurge family) shows:
- Flowers are unisexual.
- Flowers are achylmaceous (lack petals).
- Flowers are arranged in a special cup-shaped inflorescence called Cyathium.
Step 3: Features of Cyathium.
- A cyathium is a unique structure resembling a single flower but composed of many reduced unisexual flowers.
- It has a cup-like involucre enclosing staminate and pistillate flowers.
- This arrangement facilitates pollination by insects despite the flowers being reduced and unisexual.
Step 4: Comparison with other options.
- Verticellaster: Seen in Lamiaceae, arrangement of cymes in whorls.
- Solitary cyme: A single flower in a cyme arrangement; not specific to Euphorbiaceae.
- Hypanthodium: Characteristic of Ficus (Moraceae), enclosed inflorescence.
Step 5: Conclusion.
Thus, the characteristic inflorescence of Euphorbiaceae with achylmaceous, unisexual flowers is Cyathium.
Inflorescence is the arrangement of flowers on a plant. Different plant families have characteristic types of inflorescence.
Step 2: Characteristics of Euphorbiaceae.
The family Euphorbiaceae (spurge family) shows:
- Flowers are unisexual.
- Flowers are achylmaceous (lack petals).
- Flowers are arranged in a special cup-shaped inflorescence called Cyathium.
Step 3: Features of Cyathium.
- A cyathium is a unique structure resembling a single flower but composed of many reduced unisexual flowers.
- It has a cup-like involucre enclosing staminate and pistillate flowers.
- This arrangement facilitates pollination by insects despite the flowers being reduced and unisexual.
Step 4: Comparison with other options.
- Verticellaster: Seen in Lamiaceae, arrangement of cymes in whorls.
- Solitary cyme: A single flower in a cyme arrangement; not specific to Euphorbiaceae.
- Hypanthodium: Characteristic of Ficus (Moraceae), enclosed inflorescence.
Step 5: Conclusion.
Thus, the characteristic inflorescence of Euphorbiaceae with achylmaceous, unisexual flowers is Cyathium.
Was this answer helpful?
0
0
Top AP EAPCET Biology Questions
- In which group of algae are food materials stored in pyrenoids?
- Which plant hormone is responsible for apical dominance?
- The genetic material in bacteriophages is:
- Which of the following is the structural and functional unit of the kidney?
- Which of the following organisms exhibits alternation of generations?
View More Questions
Top AP EAPCET Classification of animals Questions
- Identify the wrong statement regarding ICBN:
- The branch of botany which helps in understanding the course of evolution in plants is:
- Following is not a common feature in both ferns and Gymnosperms:
- Some plants of the following family have swollen leaf base:
- Choose the incorrect statement:
View More Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions