Louise Parsons wrote: > I am curious to know what causes some of my very large population of G. elwesii > to have four outer petals. > This is a common mutation, usually happening just once and never again; but in Louise's clone it happens regularly but not always, and in the bulbs she gave me it has never done it again! The clone is known as 'Teresa Stone' and is certainly a very good reliable G. elwesii. John Grimshaw