A linden is also a type of tilia tree, but there are no "linden" trees in Second Life. The "lab" part of the name may be meant to invoke thoughts of expirementation as this is a large part of the development of Second Life, not just for Linden Lab but also for the residents--but there is no actual lab in the offices. The logo for Linden Lab, a cube tree, was made by a contractor at the request of LL for something industrial yet also organic. The logo is sometimes mistaken to be an image of an avatar's "selection particles" selecting a cube.