One bloom was more popular than any other in the Golden Age: the tulip. Originally Turkish, this flower was so popular that numerous albums were made of its many varieties, depicted in detail in watercolour and body colour. One of the most famous albums, which featured this picture, was by Jacob Marrel. Beside each flower he gave the name of the variety. Most were flamed tulips with irregular petals – particular favourites in the seventeenth century. It was only in the early twentieth century that the cause of the broken colours was discovered to be an otherwise harmless virus.