Question

Pollinia are found in the flowers of
A. Calotropis
B. Vinca
C. Hibiscus
D. Salvia

Answer 1

Hint:Some people use this plant for boils, inflammation, syphilis, epilepsy, fever, warts, leprosy, paranoia, gout, snakebite, muscle spasm, and cancer.

Complete answer:
A pollinium is a cohesive mass of pollen grains in a plant that are the result of just one anther but are transmitted as a single unit during pollination. This is seen frequently in plants such as orchids and several species of milkweed. Some of the orchids have waxy pollinia. They are bound to one or two elongated stipeses, which, in turn, are attached to a sticky viscidium, a disk-shaped structure which is attached to a visiting insect. Any orchid genera have floury pollinia. They are tapering into a caudicle (stalk) attached to the viscidium. They are extending into the middle part of the column.
Pollinia are known as pollinium in a singular form. Calotropis is a genus of flowering plants in the Apocynaceae family. It is local to northern Africa and southern Asia. They are commonly referred to as milkweed because of the latex they produce.
Vinca is a genus of flowering plants in the Apocynaceae family. This genus is local to Northwest Africa to Europe and Southwest Asia.
Hibiscus is a genus of flowering plants in the Malvaceae family. The genus is very broad, consisting of several hundred species local to subtropical, warm temperate, and tropical regions around the world.
Salvia is the largest plant genus in the mint family, Lamiaceae, with about 1,000 species of shrubs, herbaceous perennials and annuals.

Thus, the correct answer is option A. i.e., Calotropis.

Note:Calotropis is a weed. People use root bark and bark of this weed for medicines. Despite significant safety issues, calotropis is used for intestinal problems, including diarrhoea, constipation and stomach ulcers; for debilitating symptoms, including toothache, cramping, and joint pain; and for parasitic infections, including elephantiasis and worms.