Shiitake Shiitake The shiitake (; Lentinula edodes) is an edible mushroom native to East Asia, which is cultivated and consumed in many Asian countries. It is considered a medicinal mushroom in some forms of traditional medicine. The fungus was first described scientifically as "Agaricus edodes" by Miles Joseph Berkeley in 1877. It was placed in the genus "Lentinula" by David Pegler in 1976. The fungus has acquired an extensive synonymy in its taxonomic history: The mushroom's Japanese name is composed of , for the tree "Castanopsis cuspidata" that provides the dead logs on which it is typically cultivated, and . The
What Is and What Should Never Be descending riff [of "What Is and What Should Never Be"] is amazing: It's like a bow is being drawn back, and then it releases. The rhythm of the vocals is almost like a rap. It's insane — one of their most psychedelic songs." This was also one of the first songs recorded by the band for which Robert Plant received writing credit. According to rock journalist Stephen Davis, the author of the Led Zeppelin biography "Hammer of the Gods: The Led Zeppelin Saga", the lyrics for this song reflect a romance Plant had with his wife's younger sister. "What Is