I attached 3 url's and I would bet that our wnderful administrator (meant
truely and in all seriousness) set the list to eat email with attachments to
prevent a recurrence of the unfortunate virus transmission.
Anyway-
Here is my response on algae with the attchments:
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B.G. et al-
I found a couple of links (see below) with some photos that may help you
identify the algae you have.
http://faq.thekrib.com/algae.html
http://www.thekrib.com/Plants/Algae/red-algae.html