"Originally: †a stalked antheridium of a moss, liverwort, or other cryptogam ( obsolete rare ). In later use: a spore produced at the apex of a hypha or other cellular filament forming the structural element of a fungus; a basidiospore", Mid 19th cent.; earliest use found in William Henry Harvey (1811–1866), botanist. From acro- + spore, probably after French acrospore. Compare German Akrospore.[acrospore etymology, acrospore origin, 英语词源]