The research is focused on three levels: 1. The circumscription and higher-level relationships of the family Calymperaceae. 2. Relationships of the genera (and major sections) within the family (the major goal being to verify the monophyly of Mitthyridium and select a few other monophyletic subgroups of the family for monographic study). 3. Species delimitations and relationships within the selected subgroups (e.g., Mitthyridium) culminating in world monographs. At all these levels, but particularly in the latter, we are also considering biological, ecological, and geographic facters influencing diversification. The research involves field and herbarium studies to discover and refine taxonomic characters useful at all three levels. Laboratory studies including SEM, morphometrics, culture studies, and DNA sequencing will be used to supplement the morphological data.

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