mycology Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans, including as a source for tinder, traditional medicine, food, and entheogen ...

, 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 The Pezizaceae (commonly referred to as cup fungi) are a family of fungi in the Ascomycota which produce mushrooms that tend to grow in the shape of a "cup". Spores are formed on the inner surface of the fruit body (mushroom). The cup shape typ ...

, puffballs, earthstars, some polypores, jelly fungi, ergots, and smuts. It is often the case that features of the stipe are required to make a positive identification of a mushroom. Such distinguishing characters include: # the texture of the stipe (fibrous, brittle, chalky, leathery, firm, etc.) # whether it has remains of a partial veil (such as an annulus or

cortina Cortina may refer to: Things * Cortina (tango), a short piece of music played during a tango dance event * Ford Cortina, a medium-sized family car built by Ford of Britain from 1962 to 1982 **Lotus Cortina, a 1963–1968 performance variant on the ...

) or universal veil ( volva) # whether the stipes of many mushrooms fuse at their base # its general size and shape # whether the stipe extends underground in a root-like structure (a rhizome) When collecting mushrooms for identification it is critical to maintain all these characters intact by digging the mushroom out of the soil, rather than cutting it off mid-stipe.

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Fungal morphology and anatomy {{Agaricomycetes-stub ja:キノコの部位#柄