Question

A dicot leaf having parallel venation is
A. Eryngium
B. Zizyphus
C. Ricinus
D. Cassia

Answer 1

Hint: Really common garden plants, shrubs and trees, and broad-leafed flowering plants fairly such as magnolias, roses, geraniums, and hollyhocks are dicots, demonstrating that dicotyledon, byname dicot, any member of the flowering plants, or angiosperms that generally has a pair of leaves, or cotyledons, in the embryo of the seed, basically contrary to popular belief.

Complete answer:
There generally are two types of venation, namely reticulate venation and particularly parallel venation, which specifically shows that the phenomenon of the arrangement of veins on the leaf is called as venation uniquely. Examples of plants showing reticulate venation specifically include rose, tulsi, hibiscus, papaya, Ficus, Bambusa, demonstrating that examples of plants showing reticulate venation include rose, tulsi, hibiscus, papaya, Ficus, Bambusa in a major way. Parallel venation involves the veins running parallel to each other, demonstrating that there are two types of venation, namely reticulate venation and particularly parallel venation, which mostly shows that the phenomenon of the arrangement of veins on the leaf is called as venation, which is quite significant. Leaves of monocot plants show pretty parallel venation and essentially leaves of dicot plants show reticulate venation, very further showing how there are two types of venation, namely reticulate venation and parallel venation, which shows that the phenomenon of the arrangement of veins on the leaf is called as venation, which is quite significant. They show particularly parallel venation, so examples of plants showing generally parallel venation include grains, bananas, canna, grass, Musa, plum, Zea, which is fairly significant.

Hence the correct answer is option A. A dicot leaf having parallel venation is Eryngium.

Note: The dicotyledonous leaf has two layers and it's dorsiventral in general. The Upper and lower epidermis are the two layers.
The epidermis is made by a single layer of cells where the cells are closely packed.
The upper epidermis has a thicker cuticle more than the lower epidermis.