Stinkhorn
| Phallaceae | |
|---|---|
 |
|
| The common stinkhorn, Phallus impudicus | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Phallales |
| Family: |
Phallaceae Corda (1842) |
| Type genus | |
|
Phallus Junius ex L. (1753) |
|
| Synonyms | |
Clathraceae Chevall. 1826
Lysuraceae Corda 1842
Phallaceae is a family of fungi, commonly known as stinkhorn mushrooms, 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. The characteristic fruiting-body structure, a single, unbranched receptaculum with an externally attached gleba on the upper part, distinguishes the Phallaceae from other families in the Phalalles. The spore mass typically smells of carrion or dung, and attracts flies and other insects to help disperse the spores. Although there is great diversity in body structure shape among the various genera, all species in the Phallaceae begin their development as oval or round structures known as "eggs". According to a 2008 estimate, the family contains 21 genera and 77 species.
Species of stinkhorns have gasteroid, or internally produced spores. Fruit bodies originate as a gelatinous, spherical, or egg-shaped structure that may be completely or partially buried underground. The peridium, the outer layer of the egg, is white, or purple/red, with two or three layers. The outer layer is thin, membranous, and elastic, while the inner layer is thicker, gelatinous, and continuous. At maturity, the peridium opens up and remains as a volva at the base of the receptaculum.
The fertile portion of the fruiting body is often borne on the end of a wide, fleshy or spongy stalk (as in the Phallales), which may be cylindrical, star-shaped, or reticulate (forming a network). They may be brightly colored, sometimes with a lattice- or veil-like membrane enclosing and protecting the spores. The spore-containing substance, the gleba, is typically gelatinous, often foul-smelling, and deliquescent (becoming liquid from the absorption of water). The gleba is formed on the exterior face of the cap or the upper part of the receptacle.
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Wikipedia