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In mycology, a stipe (/ s t aɪ p /) 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. [1]
In orchids, the stipe or caudicle is the stalk-like support of the pollinia. It is a non-viscid band or strap connecting the pollinia with the viscidium (the viscid part of the rostellum or beak). A stipe is also a structure found in organisms that are studied by botanists but that are no longer classified as plants.
Phallaceae is a family of fungi, commonly known as stinkhorns, within the order Phallales. Stinkhorns have a worldwide distribution, but are especially prevalent in tropical regions. They are known for their foul-smelling, sticky spore masses, or gleba , borne on the end of a stalk called the receptaculum.
This glossary of mycology is a list of definitions of terms and concepts relevant to mycology, the study of fungi.Terms in common with other fields, if repeated here, generally focus on their mycology-specific meaning.
Presence of large spherical cells, 'sphaerocysts', in the stipe is an important characteristic feature to distinguish the members of Russulaceae from other mushrooms. In Russula, the stipe breaks like the flesh of an apple, while in most other families it only breaks into fibres. [13] The spore powder varies from white to cream, or even orange.
The stipe is 4–7 cm (1 + 5 ⁄ 8 – 2 + 3 ⁄ 4 in) high and 1–1.5 cm (3 ⁄ 8 – 5 ⁄ 8 in) thick and slightly swollen at the base, and is whitish with a whitish ring, which is initially attached to the cap. [16] Also known as a partial veil, this is a key identifying feature of the mushroom. [17]
The stipe (stem) is smooth but fibrillose and streaky, yellow to orange-red, whitish towards base, lacking a ring. All parts become duller and grey with age, finally becoming entirely black. The spore print is white, the spores (under a microscope) smooth, inamyloid, ellipsoid, measuring about 8.5 to 11.5 by 5 to 7.5 μm. [6]
Stipe: The stipe is 3–7 cm (1 + 1 ⁄ 8 – 2 + 3 ⁄ 4 in) long and 0.5–1 cm thick. [5] It has either an equal structure, or becomes thinner near the base. It is light yellow, bruising rusty brown. The stipe has an evanescent veil which often leaves fragments on the upper part of the stipe [5] or the margin of young caps.