<plant biology> Of ferns, having sporangia with walls more than one cell thick. ... Compare: leptosporangiate. ... (09 Oct 1997) ... Found on http://www.encyclo.co.uk/local/20973
adjective (of ferns) having sporangia that arise from a group of epidermal cells; `eusporangiate ferns of the families Ophioglossaceae and Marattiaceae` Found on https://www.encyclo.co.uk/local/20974