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(B) The classification of thalamus based on the position of floral parts (Bentham and Hooker's system) is as follows:$1$. Thalamiflorae: Ovary is supe

Vedclass · Accepted Answer

Thalamiflorae - $Catharanthus$ $roseus$

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(B) The classification of thalamus based on the position of floral parts (Bentham and Hooker's system) is as follows:$1$. Thalamiflorae: Ovary is superior,and stamens are inserted on the thalamus.$2$. Disciflorae: $A$ disc-like structure is present on the thalamus,and the ovary is superior.$3$. Calyciflorae: Thalamus is cup-shaped,and the ovary is inferior or semi-inferior.$4$. Inferae: Ovary is inferior.In the given options,$Catharanthus$ $roseus$ (Periwinkle) belongs to the family Apocynaceae,which is characterized by a superior ovary and is typically placed under Thalamiflorae. However,the classification provided in the options is based on Bentham and Hooker's system. $Rosa$ $indica$ is correctly placed under Calyciflorae. $Helianthus$ $annuus$ (Sunflower) has an inferior ovary and is correctly placed under Inferae. $Citrus$ $limon$ is correctly placed under Disciflorae. All options provided are botanically correct classifications; however,if one must be identified as the 'incorrect' match in a standard context,$Catharanthus$ $roseus$ is often associated with Thalamiflorae,but the question implies a specific mismatch. Upon review,all matches are technically correct according to Bentham and Hooker's system.

Column-$I$	Column-$II$
$(i)$ Fibrous root	$(a)$ Citrus
$(ii)$ Stem tendrils	$(b)$ Legumes
$(iii)$ Stem thorns	$(c)$ Wheat
$(iv)$ Pulvinus	$(d)$ Grape vine

Identify the incorrect match regarding the classification of thalamus based on the position of floral parts:

Similar Questions

Which type of placentation is found in primrose and lemon,respectively?

Statement $X$: $Hibiscus$ $rosa-sinensis$ was placed in $Thalamiflorae$ by $Bentham$ and $Hooker$.
Statement $Y$: It possesses a cup-shaped thalamus and its petals are fused.

Colchicine:
$I.$ is obtained from $Colchicum \text{ } autumnale$
$II.$ is a cytokinesis inhibitor
$III.$ induces polyploidy
$IV.$ is obtained from $Fabaceae$ family
$V.$ Floral formula: $\oplus \text{ } \text{O} \text{ } P_{3+3} A_{3+3} G_{(3)}$
Which are the correct statements?

Match the Column-$I$ and Column-$II$ and choose the correct option:-

Column-$I$ Column-$II$

$(i)$ Fibrous root $(a)$ Citrus

$(ii)$ Stem tendrils $(b)$ Legumes

$(iii)$ Stem thorns $(c)$ Wheat

$(iv)$ Pulvinus $(d)$ Grape vine

Identify $X$ in the given figure.

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