Myxomycete species concepts, monotypic genera, the fossil record, and additional examples of good taxonomic practice
DOI:
https://doi.org/10.33885/sf.2008.3.1019Keywords:
Badhamiopsis, ecology, Perichaena, Protophysarum, seasonality, TrabrooksiaAbstract
This paper highlights and expands on some of the major points of good taxonomic
practice. Myxomycete species concepts are reviewed, monotypic genera are discussed and
critiqued, and case study examples are given for Badhamiopsis ainoae, Protophysarum
phloiogenum, and Trabrooksia applanata. Monotypic genera are suggested for DNA
sequencing to resolve the correct taxonomic rank in myxomycete classification. Fossil
evidence of myxomycetes found in amber is evaluated and discussed for the first time.
Perichaena species represented by P. brevifila, P. microspora, P. pedata, and P. syncarpon, are
restricted to leaf litter habitats and serve as examples of fruiting seasonality patterns and
ecological differences based on detailed field observations recorded in collection data. This
additional ecological information can supplement morphological differences in distinct
species. The future of myxomycete systematics requires a shift from descriptive taxonomy to
in-depth studies using hypotheses that test phylogenetic relationships, biogeographical
patterns of distribution, and the restriction of species to habitats with special ecological
characteristics.
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