Pro(toc)tista redux: the Phaeophyta

I’d already been planning a follow-up of my recent post on that oddball eukaryote kingdom, Pro(toc)tista, just to discuss a couple of phyla that interest me [the brown algae, which include kelp and seaweeds, and the Bacillariophyta, which include diatoms (if you were in and around swimming pools as much as I was when I was younger, you'd probably wondered what diatomaceous earth was made of)], but before I got very far on the draft, I actually received my second nonfamily nonfriend comment, this time from a student in Canada who goes by the name Psi wavefunction* and obviously knows [...]