We all know Wylandriah, the slightly crazy Bosmer mage from Mistveil Keep in Riften. Recently on my Thief character, I've been wandering out, investigating things and generally looking around for things I haven't noticed before. Well, a letter in Wylandriah's small laboratory states the following:

Letter: Per your requests
"And finally, in the fourteenth paragraph of your letter, you mention a substance called "greenmote". We're assuming this was a simple mistake and you meant to write "greenspore"."

Now even for Wylandriah I think it would be difficult to accidentally say greenmote, which is an actual thing, rather than greenspore. One piece of evidence might be a bit too small, but the other thing leading me to this hypothesis was the fact that she is, well, a bit crazy, which we all know happens if you visit the Shivering Isles.

Also, another character in Skyrim, Dervenin, was one a Priest of Mania in Oblivion and we see him in Solitude in Oblivion. Maybe Wylandriah was another small easter egg put in by Bethesda.

Thoughts?

I think she's just a little crazy - in other words, blessed by Sheogorath. It's a perfect opportunity to write in some Easter Eggs, so the Mad God sent her a vision of greenmote (and a memory of calipers).

Dervenin, on the other hand, is not an Easter Egg, he's a reference, He's the same person we met in New Sheoth - when Sheogorath left his realm, Dervenin came to Tamriel looking for him and found Dovahkiin instead.