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Life Cycle of Ascosphaera apis (Pericystis apis)
Charles F. Spiltoir
American Journal of Botany
Vol. 42, No. 6 (Jun., 1955), pp. 501-508
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2438686
Page Count: 8
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The life cycle of Ascosphaera apis (Pericystis apis) is described. The fungus is morphologically heterothallic (sexually dimorphic). An ascogonium with a trichogyne, nutriocyte, and stalk-like portion is recognized. There is no antheridium. An ascogenous system with croziers and asci is formed within the nutriocyte. It is thought that each ascus produces eight spores. The mature asci are tightly grouped together as spore balls. The taxonomic treatment of the Ascosphaeraceae as a family within the Eurotiales is discussed.
American Journal of Botany © 1955 Botanical Society of America, Inc.