Symbols Used in Floral Formula and Diagrams

Q.

Give examples of gamosepalous, polysepalous, gamopetalous, and polypetalous based on calyx and corolla respectively.

Q.

The number of petals and stamens In a flower is always equal. Correct the following statement and rewrite it?

Q.

Write floral formula for a flower which is bisexual, actinomorphic sepals five, twisted aestivation, petals five valvate aestivation; stamens six, ovary tricarpellary, syncarpous, superior, trilocular with axile placentation.

Q.

Write Difference Between Calyx And Corolla.

Q.

Which symbol is used to denote superior ovary?

1. G

2. -G-

3. G_i

4. None of the above

Q. Which among the following families shows the following floral formula?
$Ebr\oplus$ ⚥ $K_{2+2}{C}_4{A}_{2+4}{G}_{\underset{–}{\left(2\right)}}$

1. Fabaceae
2. Solanaceae
3. Brassicaceae
4. Liliaceae

Q. Observe the following floral diagram and choose the correct option for calyx and androecium respectively.

1. Imbricate aestivation and diadelphous androecium
2. Imbricate aestivation and monadelphous androecium
3. Valvate aestivation and diadelphous androecium
4. Valvate aestivation and monadelphous androecium

Q. In a floral formula, the symbol ${\frac{G}{}}^{}{}_{\left(5\right)}$ indicates that the gynoecium is

1. pentacarpellary, syncarpous with a superior ovary
2. pentacarpellary, syncarpous with a inferior ovary
3. pentacarpellary, apocarpous with a superior ovary
4. pentacarpellary, apocarpous with a superior ovary

Q.

Sepals and petals are called non essential parts of a flower. Why?

Q. Bicarpellary syncarpous ovary with axile placentation is found in

Q. Match the following.

	Column I		Column I
1	Br	A	Zygomorphic
2	k	B	Bracteate
3	%	C	Superior ovary
4	$\frac{G}{}$	D	Calyx

1. 1-B, 2-C, 3-A, 4-D
2. 1-B, 2-D, 3-A, 4-C
3. 1-C, 2-A, 3-D, 4-B
4. 1-A, 2-B, 3-C, 4-D

Q. Choose the correct description of the androecium as described In the given formula.

1. Stamens 5, united, epipetalous
2. Stamens 5, free from one another
3. Stamens 5, free from one another, epipetalous
4. Stamens 5, free from one another, epiphyllous

Q. Given the following description, write the floral formula: 5 fused sepals, 5 fused petals, zygomorphic, 4 stamens in 2 sets of 2, Hypogynous, 2 fused carpels, female

1. % ♀ K(5) C(5), A(2+2) G(2).
2. % ♀ K(5) C(5), A(4) G(2).
3. Actinomorphic ♀ K(5) C(5), A(4) G(2).
4. Actinomorphic K(5) C(5), A(2+2) G(2).

Q.

How is a key helpful in the identification and classification of an organism?

Q.

Given below are a few floral formulae of some well known plants. Draw floral diagrams from these formulae.

(i) $⨁K_{\left(5\right)}{C}_{\left(5\right)}{A}_{\left(5\right)}{G}_{\underset{-}{\left(2\right)}}$

(ii) $K_{\left(5\right)}{C}_{1+2+2}{A}_{\left(9\right)+1}{G}_{\underset{-}{1}}$

(iii) $⨁K_5{C}_5{A}_{5+5}{G}_{\left(5\right)}$

Q. Choose the floral diagram represnting the floral formula given below:

1. 
2. 
3. 
4. 

Q.
Interpret the above given floral formula and describe the floral characters.

1. 4 sepals, 4 petals, superior ovary, 2 carpels, 6 fused stamens
2. 4 sepals, 4 petals, superior ovary, 2 carpels, 2 whorls of stamens
3. 4 sepals, 4 petals, inferior ovary, 2 fused carpels, 6 fused stamens
4. 4 sepals, 4 petals, inferior ovary, 2 fused carpels, 2 whorls of stamens

Q. Enumerate the floral characters from the floral formula given below.

1. Actinomorphic, bisexual, sepals four to 5, petals four to five, inferior ovary, two fused carpels, stamens five
2. Actinomorphic, bisexual, sepals four to five, petals four to five, superior ovary, two fused carpels, stamens five, epiphyllous
3. Zygomorphic, bisexual, sepals four to five, petals four to five, inferior ovary, two fused carpels, stamens five, epipetalous
4. Actinomorphic, bisexual, sepals four to five, petals four to five, inferior ovary, two fused carpels, stamens five, epipetalous

Q.

Which of the following cannot be determined by observing a floral diagram?

1. Placentation

2. Aestivation of calyx and corolla

3. Position of ovary on the thalamus

4. Symmetry of flower

Q. If position of ovary is below sepals, petals and stamens, the flower is called

1. epigynous
2. perigynous
3. hypogynous
4. metagynous

Q. Choose the correct description depicted by the following floral diagram.

1. United, valvate sepals, free twisted petals, free stamens, unilocular ovary with marginal placentation
2. United valvate sepals, free imbricate petals, free stamens, unilocular ovary with axile placentation
3. United valvate sepals, free imbricate petals, epipetalous stamens, unilocular ovary with marginal placentation
4. United valvate sepals, free imbricate petals, free stamens, unilocular ovary with marginal placentation

Q.

Look at the floral diagram below and select the property which are true to the flower.

1. The flower is pentamerous

2. The stamen are attached to the petals

3. The flower is unisexual

4. The flower has bracts

Q. Choose the floral diagram represnting the floral formula given below:

1. 
2. 
3. 
4. 

Q. The symbol ⚥ is used to represent __________ in a floral formula.

1. symmetry of the flower
2. male flower
3. female flower
4. bisexual flower

Q. In a floral formula, the symbol ${\frac{G}{}}^{}{}_{\left(5\right)}$ indicates that the gynoecium is

1. pentacarpellary, syncarpous with a superior ovary
2. pentacarpellary, apocarpous with a superior ovary
3. pentacarpellary, syncarpous with a inferior ovary
4. pentacarpellary, apocarpous with a superior ovary

Q. Match the items in column I with those in column II.

1. A - 1, B - 9, C - 8, D - 5, E - 2, F - 3, G - 6, H - 7, I - 4
2. A - 1, B - 9, C - 8, D - 4, E - 2, F - 3, G - 6, H - 7, I - 5
3. A - 1, B - 9, C - 8, D - 4, E - 2, F - 3, G - 7, H - 6, I - 5
4. A - 1, B - 9, C - 8, D - 4, E - 2, F - 6, G - 7, H - 3, I - 5

Q. Match the following.

	Column I		Column I
1	Br	A	Zygomorphic
2	k	B	Bracteate
3	%	C	Superior ovary
4	$\frac{G}{}$	D	Calyx

1. 1-A, 2-B, 3-C, 4-D
2. 1-B, 2-C, 3-A, 4-D
3. 1-B, 2-D, 3-A, 4-C
4. 1-C, 2-A, 3-D, 4-B

Q.

Name the kind of phyllotaxy in Hibiscus.

Q. Potato, tomato, cabbage, cauliflower, radish, soybean and pea belong to.

1. Two different families
2. Three different families
3. Four different families
4. Five different families

Q. What is the nature of carpel?

1. Bicarpellary syncarpous
2. Bicarpellary
3. Monocarpellary syncarpous
4. None of the above