It's a good job I found that cultivar link, I can't find it now!
I found another link which has photos of more recent cultivars..
I found how to get it, just in case it disappears!
Click "Databases" link at the left, click on link which says "Geregistreerde cultivars" then there's a link in the first line of the text which comes up. When you get the page you have to click on the arrow next to the 'T' which only brings up Tecophilaea, another click on the arrow next to that brings up more! A miracle I found it!
Some of the colour descriptions are in Dutch but they can be translated by highlighting the text, and using right click I can use 'translate with Bing' so anyone should be able to do that.