leptosporangium vs sporangium

leptosporangium and sporangium both are nouns.

Word	Noun	Adjective	Verb	Adverb
leptosporangium	Yes	No	No	No
sporangium	Yes	No	No	No

As nouns, sporangium is a hypernym of leptosporangium; that is, sporangium is a word with a broader meaning than leptosporangium:

leptosporangium: a sporangium formed from a single epidermal cell; characteristic of the Filicales or of almost all modern ferns
sporangium: organ containing or producing spores

Other hypernyms of leptosporangium include spore case, spore sac.

leptosporangium (noun)	sporangium (noun)
a sporangium formed from a single epidermal cell; characteristic of the Filicales or of almost all modern ferns	organ containing or producing spores