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arcyria denudata

arcyria denudata


Sporocarps erect, often in large colonies, deep red, fading to red-brown, crowded or gregarious, 1-2 mm total height. Sporothecae subglobose, ovoid or cylindrical, erect, 0.5-1 mm diam., expanding to 1(-2) x the original size. Stalk dark or red-brown, 0.5-1.5 mm long, cysts mostly 12-15 µm diam. Capillitium net rather dense, the tubules slender, 3-4 µm diam., usually with coarse half rings arranged in a spiral, elsewhere smooth or minutely warted or with fine subreticulate ridges. Calyculus plicate, usually rather coarsely papillate-reticulate, usually rather small and shallow, funnel-shaped. Spores 6-8 µm diam. minutely, pale-warted and with scattered larger wartlets ( ), ( ), ( )


The genus Arcyria is prevalent worldwide and is considered one of the most common slime mold genera, some Arcyria species (Arcyria cinerea, Arcyria denudata, Arcyria incarnata, Arcyria nutans) also include the range of their habitats to the most common slime mold species at all


Slime mold or mould is a broad term describing protists that use spores to reproduce. Slime molds were formerly classified as fungi, but are no longer considered part of this kingdom. Their common name refers to part of some of these organisms' life cycles where they can appear as gelatinous "slime". This is mostly seen with the myxomycetes, which are the only macroscopic slime molds. Slime molds have been found all over the world and feed on microorganisms that live in any type of dead plant material. For this reason, these organisms are usually found in soil, lawns, and on the forest floor, commonly on deciduous logs. However, in tropical areas they are also common on inflorescences, fruits and in aerial situations (e.g., in the canopy of trees) and also grow in air conditioners, especially when the drain is blocked. In urban areas, they are found on mulch or even in the leaf mold in gutters. One of the most commonly encountered slime molds is the yellow Physarum polycephalum, found both in nature in forests in temperate zones, as well as in classrooms and laboratories. Most slime molds are smaller than a few centimeters, but some species may reach sizes of up to several square meters and masses of up to 30 grams. Many have striking colours such as yellow, brown and white ---- at picture [1] can you see, the spore-strings which popping out of some specimen, and a (actually 2) empty cups

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Spotted by

Horst aan de Maas, Limburg, Netherlands

Spotted on Nov 26, 2011
Submitted on Nov 30, 2011

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Arcyria incarnata Arcyria denudata Slime mold Mycetozoa Slime Mould

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