Not to sound like a smartass, but it's under the section Other Entheogens (scroll down on the main form) and under the section titled . . . wait for it . . . wait for it . . . Mushrooms. (The subsection you are looking for is aptly titled "cultivation"
Okay so that was kind of smartass.
"Today a young man on acid realized that all matter is merely energy condensed to a slow vibration, that we are all one consciousness experiencing itself subjectively, there is no such thing as death, life is only a dream, and we are the imagination of ourselves. Here’s Tom with the weather."