acrospore

Century Dictionary and Cyclopedia

1. n. In botany, a form of fruit in Peronospora, a genus of microscopic fungi, borne at the ends of erect simple or branching filaments of the mycelium. The term is also applied generally to the reproductive organs of fungi when they are developed at the apex of the mother cell or sporophore.

Wiktionary

1. n. A spore borne at the extremity of the cells of fructification in fungi.

GNU Webster's 1913

1. n. (Bot.) A spore borne at the extremity of the cells of fructification in fungi.