One measure of botanical software's comprehensiveness is the size of its name list.

The Compleat Botanica uses a checklist of botanical names which span twenty-three taxonomic ranks from regnum to varietas (kingdom to variety) containing approximately 105,000 entries.  This checklist is used by the botanical name spell-checker and the automatic family name lookup feature.  Each name is properly ranked (family, genus, species, variety, etc.) and ordered within the taxonomic tree.  Common names, author names, publication, and source of reference are provided for most entries.

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