Physocystidium [SEP] parent taxon
Physocystidium
Physocystidium is a genus of fungi in the Tricholomataceae family. This is a monotypic genus, containing the single species Physocystidium cinnamomeum. This species is found in Trinidad, and was originally described as new to science in 1951 as "Collybia cinnamomea" by mycologist R.W.G. Dennis; Rolf Singer transferred it to the then newly created genus "Physocystidium" in 1962.
See also.
- List of Tricholomataceae genera
Taxon in disguise
In bacteriology, a taxon in disguise is a species, genus or higher unit of biological classification whose evolutionary history reveals has evolved from another unit of similar or lower rank, making the parent unit paraphyletic. This happens when rapid evolution makes a new species appear radically different from the ancestral group, so that it is not (initially) recognised as belonging to the parent phylogenetic group, leaving the latter an evolutionary grade.
While the term is from bacteriology, parallel examples are found throughout the tree of