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 Mathematics? Expectations" by Charles Dickens. According to Constance Reid, Courant finalized the title after a conversation with Thomas Mann. What Is Mathematics? What Is Mathematics? is a mathematics book written by Richard Courant and Herbert Robbins, published in England by Oxford University Press. It is an introduction to mathematics, intended both for the mathematics student and for the general public. First published in 1941, it discusses number theory, geometry, topology and calculus. A second edition was published in 1996 with an additional chapter on recent progress in mathematics, written by Ian Stewart. The book was based on Courant's course material. Although