Stipe (mycology) Stipe (mycology) In mycology, a stipe () is the stem or stalk-like feature supporting the cap of a mushroom. Like all tissues of the mushroom other than the hymenium, the stipe is composed of sterile hyphal tissue. In many instances, however, the fertile hymenium extends down the stipe some distance. Fungi that have stipes are said to be stipitate. The evolutionary benefit of a stipe is generally considered to be in mediating spore dispersal. An elevated mushroom will more easily release its spores into wind currents or onto passing animals. Nevertheless, many mushrooms do not have stipes, including cup fungi,
International Union of Biochemistry and Molecular Biology International Union of Biochemistry and Molecular Biology The International Union of Biochemistry and Molecular Biology (IUBMB) is an international non-governmental organisation concerned with biochemistry and molecular biology. Formed in 1955 as the International Union of Biochemistry, the union has presently 77 member countries (as of 2008). IUBMB organizes a triennial Congress of Biochemistry and Molecular Biology, and sponsors more frequent conferences, symposia, educational activities and lectures. It publishes standards on biochemical nomenclature, including enzyme nomenclature, in some cases jointly with the International Union of Pure and Applied Chemistry (IUPAC). IUBMB has instituted the Wood Whelan Research fellowship scheme for budding