Question

In India primitive flowering plants and primitive angiosperm families occur in
a) North East
b) North West
c) Western Ghats
d) Eastern Ghats

Answer 1

Hint: Angiosperms are the plants that have covered seed structures. They are the flowering plants found in the areas of older geographical regions. Angiosperms are of two types based on the cotyledon present which includes monocotyledons and dicotyledons. Sexual reproduction occurs in angiosperms.

Complete answer:
The primitive families of the plant are present in the regions which belong to the older geological scales. Primitive families present include Magnoliaceae, Betulaceae, Myricaceae, etc. these families are found in the northeast region of India. The Himalayas have a major constitution of these families present. The older phytogeographical regions of India include land areas of Assam, northeast India, and Deccan peninsula. North east India has floristic relations with neighboring countries including Myanmar, southwest china, and Malaya peninsula. Due to the high amount of primitive plants present in the region, it is also known as the cradle of flowering plants. The advanced families are generally present in the younger regions of the country. Himalayan region harbors most of the advanced families. The younger families don’t spread in new areas but the primitive families spread over larger areas.

Additional information: In India angiosperm plants comprise $7\%$ of the world’s plants. They are present in the regions varying from western ghats to the alpine zones, from the mangroves to the deserts present in Rajasthan. Out of 511 recognized plant families, 320 families are found in Indian flora. Poaceae is the largest with 263 genera. Approximately $15\%$ are trees including timber, which belong to Annonaceae, Dipterocarpaceae, Fabaceae, Moraceae, etc. Certain dominant Angiosperm families present in are orchid, bamboo, citrus, primula, and many more.
So, the answer is ‘(a) North East’.

Note: Primitive families present in India include- Annonaceae, Circa Asteraceae, Hamamelidaceae, Magnoliaceae, Ranunculaceae. The primitive flowering plants found in the northeast region are huge in number so it is also called a cradle of flowering plants. Primitive plants are only found in the regions where the soil is of old geographical time period.