crosier

References

Images

Close-up of young fern sporophytes with curled, fuzzy green fronds unfurling against a black background in the tropical rainforest of Bukit Tinggi, Malaysia.

A detailed botanical illustration of a generalized fern sporophyte labeled with key parts: roots, rhizome, crosier, petiole, blade, midrib, and leaflet.

crosier: Media

fern leaf

Images

Close-up of young fern sporophytes with curled, fuzzy green fronds unfurling against a black background in the tropical rainforest of Bukit Tinggi, Malaysia.

coiled fern frond

Coiled “fiddleheads” of young fern fronds.

© Shariff Che'Lah/Dreamstime.com

A detailed botanical illustration of a generalized fern sporophyte labeled with key parts: roots, rhizome, crosier, petiole, blade, midrib, and leaflet.

fern anatomy

Generalized fern sporophyte.

Drawing by M. Pahl