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Monday, 13 July 2015

Colus hirudinosus Cavalier & Séchier (1835) - Cyprus


Family Phallaceae
Colus hirudinosus is a species of stinkhorn fungus found in Cyprus,Asia, Australia, northern Africa, and southern Europe. The fruit body has a short, thick stalk that divides into several spongy, wrinkled, stalk-like, orange to red columns that are united at the top, thus forming a lattice. The spores are found within the gleba — a dark, olive-brown slime that coats the inside of the columns. Spores are spread by insects that are attracted by the fetid smell of the gleba, eat the spores, and pass them on to germinate elsewhere.
Fruit bodies begin their development in the form of a structure shaped like an egg. Measuring about 1 cm (0.4 in) in diameter, the roughly spherical egg is white or mottled with brown on the upper part. Attached underneath are one or more thin white rhizomorphs. After emerging from the egg, the fruit body consists of a short, thick stalk from which between four to six vertical, arching columns arise. These columns, colored pink below and gradually deepening in color to red near the top, have a corrugated surface texture. The columns often fork near the top into additional branches that support a lattice-like, or clathrate dome. The meshes of the fertile net are roughly polyhedral and there is an abrupt transition from columns to lattice. The olive-green gleba is held on the bottom of and in between the meshes of the clathrate dome, and the inner side of the upper arms. It has a fetid odor, similar to feces, which attracts flies that visit the mushroom, consume the gleba, and deposit the spores elsewhere to germinate. Spores produced by C. hirudinosus are rod-shaped, hyaline (translucent), and measure 3.5–6.5 by 1–1.75 µm. Structurally, the spongy columns comprise a double layer of tubes, a large inner one and two or three outer ones. The remnants of the egg tissue enclose the base of the structure as a volva
Colus hirudinosus is saprobic, meaning that it obtains nutrients by decomposing dead or decaying organic matter. Fruit bodies grow in manured soil or in sand. The species is found in Europe (usually Mediterranean countries, including Corsica, France, Italy, Portugal, Spain, but also Switzerland) and Asia. In Africa, it has been reported from Algeria and Nigeria. In the Caribbean, it is known only from Jamaica. It has been recorded from Australia. (From Wikipedia, the free encyclopedia)

Photos Akanthou 26/12/2014 by George Konstantinou



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