Question

Which one of the following clusters of families is identified due to the presence of the zygomorphic flowers and bicarpellary gynoecium ?

• A. Cuscutaceae, solanaceae, Verbenaceae
• B. Malvaceae, Tiliaceae, Cucurbitaceae
• C. Boraginaceae, Convolvulaceae, Solariaceae
• D. Acanthaceae, Fumariaceae, Lamiaceae

Answer 1

The correct option is D Acanthaceae, Fumariaceae, Lamiaceae

The Acanthaceae consist of terrestrial or aquatic herbs, shrubs, or rarely trees. Their flowers are bisexual, zygomorphic and gynoecium has two carpels.

Fumarioideae is a subfamily of the family Papaveraceae (the poppy family). They are easily recognized by their peculiar flowerswith one plane of symmetry (zygomorphic). They have bi-carpellary gynoecium.

Lamiaceae are characterized as herbs or shrubs, often aromatic with ethereal oils Their flowers arezygomorphic (rarely actinomorphic), usually bilabiate having a superior ovary with two carpels.

So, the correct option is D.