Question

Is Psilotum homosporous or heterosporous?

Answer 1

Homosporous:

1. Homosporous refers to ferns that generate only one type of spore, all of which are the same size.
2. For example, Psilotum, Dryopteris, etc.

Heterosporous:

1. These ferns produce two types of spores, microspores (male) and megaspores (female), which are produced in distinct sporangia and give rise to various gametophytes.
2. For example, Selaginella, Azolla, etc.

Psilotum:

1. It only produces one type of spore.
2. Whisk-fern is another name for it.

Therefore, Psilotum is homosporous.