get_database_name

This is meant to return the name of a database when it is not known if the
input is a `TaxonDatabase` object or a simple character vector.

internal

A set of tools for parsing, manipulating, and graphing data
classified by a hierarchy (e.g. a taxonomy).

<dl><dt>input</dt>
<dd>Either a character vector or `TaxonDatabase` class</dd></dl>

<dl>

<dt>input</dt>
<dd>Either a character vector or `TaxonDatabase` class</dd>

</dl>