Gardeners Question time ... again..

I've been out on the bike and forgot to take the Tablet so sorry but its another horticultural Blip .I had a pot full of the cacti to the right of pic.Suddenly this year they sprouted the long stems to the left which grew and grew and produced flowers which sadly are beginning to wilt..I didn't know if I was supposed to or not but separated them and they thrived ;) Once more I don't know their name ? ;)