Tipos: "The sketch of the plant here represented was made from a Bolivian bulb, which flowered in the nursery of Mr. Knight in the King's Road, Chelsea, and is evidently a variety of the same species as the longer-flowered plant which has lately flowered at Spofforth, and has been there named the Tumbler, from the very singular precipitation of the buds in their progress towards expansion, and the final perpendicular posture of the lower lip of the fower."
