Re: Claviceps purpurea
Search for Claviceps purpurea on the Gateway, and three taxa are returned: Claviceps purpurea the species, and the two vars purpurea and spartinae.
Logic suggests that records of the two vars should be displayed in the species map, but they are not (there are many more var. purpurea dots than C. purpurea).
I think I have seen other taxa where the same thing happens. It is unhelpful, and I can see no advantage in the current display.
M.