Two years ago I purchased bulbs labeled Hyancinthoides non-script However when they flowered, the flowers were not as they should be, facing the same direction, so I knew they were either hispanica or a hybrid.
I have recently bought from a reliable source carrying H. non-scripta, so went to dig up the old patch of bulbs and found some elongated bulbs among them. Have you seen this? The patch was clearly labeled so I cannot fathom it being something mixed in. The bulb color and roots were a match.