Question

Match and find the correct option:

I	II
Solitary cyme	Solanum
Monochasial cyme	Ipomoea
Cymule	Datura
Polychasial cyme	Nerium

A. A-i, b-iii, c-ii, d-iv
B. A-ii, b-i, c-iv, d-iii
C. A-iii, b-iv, c-i, d-ii
D. A-iii, b-i, c-iv, d-ii

Answer 1

A cyme is a flat-topped inflorescence where as in the onion, the central flowers first open, followed by the peripheral flowers. Cymule is a small cyme that is part of a compound cyme, or one of very few flowers. Monochasial cyme is a cyme with only one lateral flower or branch emerging from under a terminal flower, resulting in an inflorescence of helicoid or scorpiod.

Complete answer:
Datura is a genus of nine poisonous vespertine flowering plant species belonging to the Solanaceae family. In the flowering plant family Convolvulaceae, Ipomoea is the largest genus. Solanum is a large and diverse genus of flowering plants containing three highly economically important food crops: potatoes, tomatoes and eggplants. In the dogbane family Apocynaceae, Nerium oleander, most commonly known as nerium or oleander, is a shrub or small tree.

Datura is an annual or perennial herb resembling a shrub,
Inflorescence - axillary and solitary cyme,

Solanum is a genus of flowering plants that is wide and diverse.
Inflorescence - Monochasial cyme,

Within the dogbane family Apocynaceae, Nerium oleander is a shrub or small tree.
Inflorescence - Cymule

Ipomoea is the largest genus in the Convolvulaceae family of flowering plants.
Inflorescence - Cyme polychasal.

Hence, the correct answer is option (D).

Note: With common names like morning glory, water convolvulus or kangkung, sweet potato, bindweed, moonflower, Ipomoea is the largest genus. Nerium oleander is an ornamental and landscaping plant grown worldwide in temperate and subtropical areas as a shrub or small tree. The nightshades and horse nettles of Solanum are a large and diverse genus, as well as various plants grown for their ornamental flowers and fruit. Daturas are a genus of nine poisonous vespertine flowering species and are usually referred to as thornapples or jimson weeds, but are also known as trumpets of the devil.