I noticed this too. It's strange that Leynode Mnemo is capitalized everywhere else... On the map, when you mouse over it, in the list of teleport destinations, and the teleport offer notification all have it as "Leynode Mnemo," but the dialogue box to accept the teleport had "leynode mnemo" instead, which threw me for a loop. I wish there was a little more consistency (like if it's supposed to be lowercase, it should be lowercase in the teleport list and notification, too, in my opinion)