Ferns:
* Sporangia: Spores are produced inside tiny structures called sporangia.
* Sori: Sporangia are often clustered together in groups called sori (singular: sorus). Sori can be found on the underside of fern fronds, usually in a distinct pattern.
* Indusium: In some fern species, the sori are covered by a thin, protective membrane called an indusium.
Mosses:
* Capsule: Spores are produced within a capsule, which is a small, often-stalked structure that develops from the sporophyte (the spore-producing generation).
* Calyptra: The capsule is initially covered by a hood-like structure called the calyptra, which is derived from the archegonium (female sex organ).
Key differences:
* Ferns: Spores are released from sporangia located on the underside of fronds.
* Mosses: Spores are released from capsules that develop from the sporophyte.
Let me know if you'd like more details about the life cycles of ferns and mosses!