Yes, I think I'm correct about L. jankae being from the Balkan region. I see this site
http://www.the-genus-lilium.com/jankae.htm also mentions the Syn.: L. carniolicum var. jankae
( Kew mentions four :
Lilium pyrenaicum var. jankae (A.Kern.) V.A.Matthews
Lilium carniolicum subsp. jankae (A.Kern.) Asch. & Graebn.
Lilium bulbiferum subsp. jankae (A.Kern.) Nyman
Lilium albanicum subsp. jankae (A.Kern.) Nyman )
(Kew gives L. pyrenaicum three synonyms:
Lilium flavum Lam.
Lilium pomponium subsp. pyrenaicum (Gouan) K.Richt.
Lilium pyrenaicum f. rubrum Stoker )
Ian says L. jankae may be more red/orange as opposed to L. pyreaicum being more yellow