Found this whilst browsing. It may be of interest to Copiapoa fans. There are some maps if you scroll down.
http://www.amjbot.org/content/102/9/1506.full.pdf" onclick="window.open(this.href);return false;
Copiapoa
Re: Copiapoa
Also there is a Copiapoa video here and more in the right hand column of the link.
https://www.youtube.com/watch?v=hFNXt5ovpwc
https://www.youtube.com/watch?v=hFNXt5ovpwc