Which term correctly refers to the study of ferns?

Ferns are a member of a group of vascular plants with xylem and phloem (both considered tissue that transports food to the fern) that reproduce via spores and have neither seeds nor flowers. The study of ferns is called pteridology.

Ferns first appeared in the fossil record about 360 million years ago in the middle of the geological Devonian Period. Today, ferns have little economic importance, but some are used for food, medicine and as biofertilizer plus as ornamental plants and for remediating contaminated soil.

Ferns have figured in folklore, for example in legends about mythical flowers and seeds. In Slavic folklore, ferns are believed to bloom once a year, during the Ivan Kuala night, celebrating the summer solstice when nights are the shortest and include a number of Slavic rituals- herb collecting, bonfire lighting, and bathing in the river. It is also referred to and linked to the Feast of St. John the Baptist. On the calendar, it occurs in the latter part of June or early July. Also, anyone who sees a fern flower is thought to be guaranteed to be happy and rich for the rest of their life.

The term pteridomania refers to the Victorian era craze when ferns were collected and then used in decorative art, including pottery, metals, textiles, wood, printed paper, and sculpture, “appearing on everything from christening presents to gravestones and memorials.”