I am glad the robcar said it, because I did not want to be lack of respect to him, but when I posted the perianth pattern, I was sure it would be of a very good hint to Stapelia owners. You can't mistaken them once you have them.
OK, like you Robcar, I find these flowers very beautiful (as one can see in the pic above) and now that we are discussing them, I don't mind their stinking smell of rotten dead matter. To defend the flowers, the smell is sensed only if you put your nose nearby, so not that they will putrify the air of your garden! It attracts numerous types of flies (not just the housefly), so ideal for any nature photographer.
For me, it is amazing to see the extent and perfect tactics that certain plants go to attract their polinators. 10 points for Stapeila for mimicing dead matter, and also 10 points to play a joke on the guests when I ask to smell the curious flower scent!
If someone is interested to have a budding piece, I bring it with me in the next activity for the forum members.