Question

Which of the following are homosporous pteridophytes?

I. Selaginella   II. Lycopodium

III. Salvinia      IV. Equisetum

(a) I and IV only 

(b) II and III only

(c) II and IV only 

(d) III and IV only

Answer 1

The correct option is: (c) II and IV only 

Explanation:

Genera like Selaginella and, Salvinia which produce two kinds of spores, macro (large) and micro (small) spores, are known as heterosporous pteridophytes Lycopodium and Equisetum are homosporous pteridophytes i.e., they produce only one type of spores.