taxa defines taxonomic classes and functions to manipulate them. The
goal is to use these classes as low level fundamental taxonomic classes
that other R packages can build on and use.
There are two distinct types of classes in taxa:
Classes that are concerned only with taxonomic information: taxon,
taxonomy, hierarchy, etc.
A class called taxmap that is concerned with combining taxonomic
data with user-defined data of any type (e.g. molecular sequences,
abundance counts etc.)
Checkout the vignette (browseVignettes("taxa")) for detailed introduction
and examples.