1. A sporangium formed from a single epidermal cell; characteristic of the Filicales or of almost all modern ferns

Type of: sporangium, spore case, spore sac

• Aeschylean
• Aeschylus
• aeschynanthus
• Aeschynanthus radicans
• aesculapian
• Aesculapius
• Aesculus
• Aesculus hippocastanum
• Aesir
• Aesop
• Aesop's fables
• aesthesia
• aesthesis
• aesthete
• aesthetic
• aesthetical
• aesthetically
• aesthetician
• aestheticism
• aesthetics
• aestival
• aestivate
• aestivation
• aether
• Aethionema