Colours of S. arachnoideum

Here's a link to a short article about colours of S. arachnoideum in nature in Switzerland:

http://www.nature.com/nature/journal/v59/n1528/abs/059342c0.html

interesting article; my concern is that the article did not address whether these different clones might be differently coloured all year long, it might not be a matter of different fall colouring...

Cohan, the question you mentioned here is the right one. That's how scientist would write an article.

But I am afraid it will stay unanswered.