Conophytum verrucosum ex. weise finaly opened the flower!

I`ve got two of these plants two years ago. These are Conophytum verrucosum ex. weise also known as Ophthalmophylum verrucosum.  It was very small when these plants arrived in my collection. But now it became adult and one of it opened the flower. Very gracious white flower without scent! I hope another one will bloom also :) Some days ago i got another three seedlings of this Conophytum.