Thanks, Anthony.
That first pic shows well the strongly dimorphic leaves that come from L. rosthornii. See how below your hand there are large leaves that abruptly change to small leaves as the stem ascends. All the leaves are a wider than a true roshornii species, and show the influence of L. henryi that has wide leaves that are not dimorphic.
This is Lilium rosthornii. If you were to study the pic closely, you would see what I mean.