YT45

YT45 was a planet where the Fifth Doctor, Peri and Erimem were once overwhelmed by Kyropites, psycho-active plants which induced dreams in Peri and Erimem, from which they had to be rescued by the Doctor.

Native life forms included small, lemur-like primates called Jekylls and the psycho-active plants themselves. (AUDIO: The Mind's Eye)