Dear Alberto, Thanks for explaining again. I understand now that Nothoscordum bivale is not the same plant as Tristagma bivale. In reading your lists I am wondering if you have changed your mind about Nothoscordum dialystemon. In the past you have told us it should be called Nothoscordum felipponei. It had 8 tepals instead of six, but this was not enough of a difference to be a separate genus. In one of your notes you are listing it as N. dialystemon which is how Howard lists it in the Herbertia article. Could you clarify this for us? Thanks. Mary Sue