Microsporangia and meagasporangia are found in the same cone in Selaginella.

A stele without pith is known as Protostele.

Pollen tube is not involved in the fertilization of fern. Pollen tube is a hollow tube which develops from a pollen grain when deposited on the stigma of a flower. It penetrates the style and conveys the male gametes to the ovule.

Gamete formation in ferns takes place through mitosis.

The stele of lycopodium is Actinostele.

If a plant produces two types of spores, it is called heterosporous.

The vascular bundles in fern rhizome are bicollateral.

In fern plant, flagella of spermatozoid are attached to body surface.

Horsetail is the common name of Equisetum.

In the sporophyll of ferns, sporangia are borne on abaxial surface.

In selaginella, an 'organ suigeneris' is rhizophore.

The sporangium of pteriodophyte is diploid.

Huperzia Borneo Square is a kind of tassel fern. Tassel Ferns are ancient fern allies that date back to the Carboniferous period.

A fossil pteriodophyte is Rhynia.

A meristele of fern rhizome is amphicribal.

Fern plants are hygrophytes.

If a sporangium develops from a single initial cell, it is called leptosporangiate.

Spore of fern gives rise to a gametophyte.

Stele of rhizophore of selaginella is monarch.

An adaxial outgrowth in the leaves of selaginella is ligule.