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Laboulbeniales On Semiaquatic Hemiptera. V. Triceromyces, Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

Six species of Triceromyces (Laboulbeniales), including the type, T. balazucii (on Hebridae), parasitic on semiaquatic Hemiptera, were studied at the light-microscopic level. Descriptions are provided for all of the taxa, and features of developmental morphology are described, compared, and illustrated with photographs and line drawings. Four species are described as new: T. hebri (on Hebridae), T. hydrometrae (on Hydrometridae), and T. biformis and T. bullatus (on Mesoveliidae). The species growing on Hebridae and Hydrometridae are monoecious. The two species on Mesoveliidae develop monoecious and dioecious morphs, which occur together on the same host individual. This phenomenon is recognized and described …