Regarding Lilium auratum var. auratum (syn. virginale), I must be mistaken, then. A quick taxonomy lesson for those who care:
When a species variety (different from a cultivar name like Black Beauty, Stargazer, Casa Blanca, etc.) is designated as separate from the regular species type, then other plants of the same species are automatically categorized as the regular type, and given the varietal name that is the same as the species epithet (name).
Thus, when Lilium concolor var. coridion was named as different from the regular Lilium concolor, then the regular Lilium concolor full name automatically became Lilium concolor var. concolor. Usually, however, this extra "copied" name is not written, and is merely taken as implied.
So Lilium auratum var. auratum is the regular species type, and wouldn't be that extra large growing strain that I alluded too. Although, it could very well be within the Lilium auratum var. auratum group.
Similarly, Lilium leichtlinii var. leichtlinii is the normal yellow flowered type, and Lilium leichtlinii var. maximowiczii, the orange.