Oh
nooooooooooooooooooo 
Had to be said.
Oy vey. Good one. I like it. Glad you were at your keyboard, poised to strike, at the right moment.
Unfortunately, I've just realised I have been talking out of an alternative orifice, because those different species are all seaweeds, not kelps. Kelps are a sub-category - Brown Algae. OK, well, there are still 4000 of those...
I'll just shut up now and go and buy some kelp in a bag and be done with it. Yes, I was making things too complicated (never happens) but it's OK now because I'm going to seek kelp.
