Calyptra mitrate

Calyptra cucullate state 1 cucullate to mitrate state 2 mitrate state 3. 

Calyptra cucullate (0) or mitrate (1). Mitrate calyptrae is the most common condition within the Ptychomniales, bnt cucnllate calyptrae occnr in all Euptychium and some Garovaglia species. 

Three character states were found to be significantly more likely to evolve in the presence of dwarf males, namely, teeth on dorsal leaf lamina (8), mitrate calyptrae (14), and furrowed capsules (15). With statistical support, the correlation tests suggest that dwarf males are more Ukely to evolve in the presence of rugose leaves (7) and paraphyllia (10). 

The results of the correlation tests suggest that the presence of teeth on the dorsal leaf lamina, mitrate calyptrae and furrowed capsules, are more likely to evolve when dwarf males are present. It seems reasonable that dorsal teeth, by providing further establishment points and protection for incoming spores, may be beneficial for taxa with dwarf males, but it is difficult to envision the benefits of mitrate calyptrae and furrowed capsules. It is worth mentioning, however, that correlation does not necessarily imply causation. 

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