Linked from
The 41 pages that link to Sporangium, each with the reason it gives.
SporophyteBroader topic: Sporophytes bear sporangia, the sites of spore production.
FernBroader topic: Fern sporangia cluster in sori on the undersides or margins of many fronds.
BryophyteBroader topic: Bryophyte sporophytes bear sporangia that generate spores by meiosis.
CooksoniaBroader topic: The terminal capsules on Cooksonia stems are sporangia.
SorusBroader topic: Each sorus consists of one or more sporangia.
LycopodiumBroader topic: Each fertile sporophyll bears a sporangium where Lycopodium spores develop.
LygodiumBroader topic: Lygodium bears spores in specialized structures along fertile frond segments.