>Upon consideration, I'm not sure she would know that, or indeed have
>ever heard of laudanum in the first place. Reimu's education has been
>extremely... let's go with uneven. I assume her official
>guardians only bothered teaching her things directly relating to the
>Hakurei Shrine and her duties therein, so anything else she might know
>about, she'd have heard from Marisa, whose intellectual interests
>are... eclectic. Any pharmacological knowledge she might possess most
>likely tends toward the alchemical and/or mycological.

I know a surprising number of people who were homeschooled and have similar strange gaps in their knowledge. It's always kind of interesting figuring out where those gaps are.

>"This one is called Psilocybe cubensis."

And it's not so great for culinary uses, sadly :-/