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,
Glossary of invasion biology terms Glossary of invasion biology terms The need for a clearly defined and consistent invasion biology terminology has been acknowledged by many sources. "Invasive species", or "invasive exotics", is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats. "Invasion biology" is the study of these organisms and the processes of species invasion. The terminology in this page contains definitions for invasion biology terms in common usage today, taken from accessible publications. References for each definition are included. Terminology relates primarily to invasion biology terms with some ecology terms included to clarify