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Heterospory and seed habit are often discussed in relation to a structure called
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- spathe
- bract
- petiole
- ligule
Correct Option: D
Heterospory, development of seed habit and ligulate leaves are important features of Selaginella. The reproductive structure in Selaginella is strobilus. A strobilus has many ligulate sporophylls. Two types of spores are produced megasporophylls and microsporophylls. Ligule is a small leaf like outgrowth at the base of leaf.
