Whorled, simple leaves with reticulate venation are present in

• Calotropis

• Neem

• China rose

• China rose

Which one of the following diagrams represents the placentation in Dianthus? 

In unilocular ovary with a single ovule, the placentation is 

• marginal

• basal

• free central 

• free central 

Ovary is half -inferior in the flowers of 

• guava

• plum

• brinjal

• brinjal

Coiling of garden pea tendrils around any support is an example of 

• thigmotaxis

• thigmonasty

• thigmotropism

• thigmotropism

Which one of the following is a xerophytic plant in which the stem is modified into the flag green and succulent structure? 

• Opunita

• Casuarina

• Hydrilla

• Hydrilla

The floral formula  is that of

• tulip

• soybean

• sun hemp

• sun hemp

98.

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous by 

• the absence of secondary xylem

• the absence of secondary phloem

• the presence of cortex

• the presence of cortex

An example of axile placentation is 

• Argemone 

• Dianthus

• Lemon

• Lemon

A fruit developed from hypanthodium inflorescence is called

• hesperidium 

• sorosis

• syconus

• syconus