Starting a Fern From Bulbs

Starting a Fern From Bulbs

My bf just got me some of the bulbs that came from his ostrich ferns. I was wondering what would be the proper procedure to start a fern from the new bulbs that came off the mother plants. If it's not a bulb, what in the world is it?
Season extenders

Season extenders

Spring in my yard in Western PA

Spring in my yard in Western PA

Identify this vine!

Identify this vine!

New place!

New place!

A hardy caladium

A hardy caladium

Carrots have sprouted!

Carrots have sprouted!