Species, varieties, cultivars, hybrids and regional names describe different aspects of coffee. Arabica is a species; names such as Bourbon and Typica identify familiar groups within the Arabica story. A place associated with a coffee is not automatically a separate botanical variety.
The source's long list illustrates how casually these terms can become mixed in coffee writing. That makes a careful label more useful than a longer list of names. A hybrid indicates a cross, while cultivar terminology concerns cultivated plant selections; neither word alone predicts the quality of every harvested lot.
For a purchase, combine variety information with the producer, origin, process and roast description. If a seller uses a broad term such as heirloom, ask whether more specific plant information is available. You can explore several coffees of a named variety, but differences between farms and processing will remain. Use genetic information to build context and curiosity, not to promise that every cup carrying the same name must share one flavor.
The conversation
A good question can make a better brew.