microsporangium

views updated May 23 2018

microsporangium A sporangium (e.g. in heterosporous (see HETEROSPORY) ferns and the clubmoss Selaginella) that produces numerous minute spores which germinate to produce only male gametophytes. Those pteridophytes that produce them also produce megasporangia containing few (often only 1–4) large spores; these spores germinate to produce the female gametophytes.

microsporangium

views updated May 08 2018

microsporangium See SPORE.

microsporangium

views updated May 14 2018

microsporangium See sporangium.