Witches' Butter
Witches' butter (or Witch's butter) may refer to: * '' Exidia nigricans'', a black, gelatinous fungus * '' Exidia glandulosa'', a black, gelatinous fungus * ''Fuligo septica,'' a yellow, gelatinous slime mold * '' Tremella mesenterica'', a yellow, gelatinous fungus * '' Dacrymyces'', a jelly fungus often confused with ''Tremella'' * ''Nostoc ''Nostoc'', also known as star jelly, troll's butter, spit of moon, fallen star, witch's butter (not to be confused with the fungi commonly known as witches' butter), and witch's jelly, is the most common genus of cyanobacteria found in a variety ...

Exidia Nigricans
''Exidia nigricans'' is a species of fungus in the family Auriculariaceae. In the UK, it has the recommended English name of warlock's butter. It produces black, gelatinous basidiocarps (fruit bodies) and is a common, wood-rotting species throughout the Northern Hemisphere, typically growing on dead attached branches of broadleaf trees. It has been much confused with '' Exidia glandulosa''. Taxonomy The species was originally described from England as ''Tremella nigricans'' by Withering in 1776, based on a phrase name published by Dillenius in 1741. It was subsequently considered a synonym of ''Exidia glandulosa'', until Donk revised species concepts in 1966 and placed it in synonymy with ''E. plana''. Changes in the starting point for fungal nomenclatureInternational code for botanical nomenclature http://ibot.sav.sk/icbn/main.htm delegitimized ''E. plana'', making ''E. nigricans'' the species' earliest name.Roberts, P. (2009). ''Exidia nigricans'': a new and ...
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Exidia Glandulosa
''Exidia glandulosa'' is a species of fungus in the family Auriculariaceae. In the UK, it has the recommended English name of witch's butter. In North America it has variously been called black witches' butter, black jelly roll, or warty jelly fungus. The gelatinous basidiocarp (fruit bodies) are up to wide, shiny, black and blister-like, and grow singly or in clusters. It is a common wood-rotting species in Europe, typically growing on dead attached branches of oak. Taxonomy The species was originally described from France as ''Tremella glandulosa'' by Bulliard in 1789. It was subsequently placed in '' Exidia'' by Fries in 1822. Fries, however, modified Bulliard's species concept to include a second, effused, coalescing species—the name ''Exidia glandulosa'' serving for both. This combined concept was used until Neuhoff separated the two species in 1936. Unfortunately, Neuhoff gave the name ''Exidia glandulosa'' to the effused species, adopting the name ''Exidia truncata' ...
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Fuligo Septica
''Fuligo septica'' is a species of slime mold in the class Myxogastria, Myxomycetes. It is common name, commonly known as scrambled egg slime or flowers of tan because of its peculiar yellowish appearance; it is also known as dog vomit slime mold. This slime mold is relatively common with a worldwide distribution, often being found on bark, mulch, lawns, as well as other rotting organic matter in urban areas after heavy rain or excessive watering. Their spores are produced on or in aerial sporangia and are spread by wind. History and taxonomy The first description of the species was provided by French botanist Jean Marchant in 1727, who referred to it as "''fleur de tan''" (bark flower); Marchant also classified it as "''des éponges''" (one of the sponges). Carl Linnaeus called it ''Mucor septicus'' in his 1763 ''Species Plantarum''. The species was transferred to the genus ''Fuligo'' by German botanist Friedrich Heinrich Wiggers in 1780. Description and habitat Like many slime ...
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Tremella Mesenterica
''Tremella mesenterica'' (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter) is a common jelly fungus in the family Tremellaceae of the Agaricomycotina. The gelatinous, orange-yellow fruit body of the fungus, which can grow up to diameter, has a convoluted or lobed surface that is greasy or slimy when damp. It is most frequently found on both dead but attached and recently fallen branches, especially of angiosperms, as a parasite of wood decay fungi in the genus '' Peniophora''. It also grows in crevices in bark, appearing during rainy weather. Within a few days after rain it dries into a thin film or shriveled mass capable of reviving after subsequent rain. This fungus occurs widely in deciduous and mixed forests and is widely distributed in temperate and tropical regions, including those of Africa, Australia, Eurasia, and the Americas. Although considered bland and flavorless, the fungus is edible. It produces carbohydrates that ...
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Dacrymyces
''Dacrymyces'' is a genus of fungi in the family Dacrymycetaceae. Species are saprotrophs and occur on dead wood. Their distribution is worldwide. Basidiocarps (fruit bodies) are ceraceous to gelatinous, often yellow to orange, and typically disc-shaped to cushion-shaped. The genus has traditionally been differentiated from other genera in the Dacrymycetaceae on the basis of basidiocarp morphology, following (in recent years) the monograph of New Zealand mycologist Robert McNabb. Molecular research, based on cladistic analysis of DNA sequences A nucleic acid sequence is a succession of bases within the nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. This succession is denoted by a series of a set of five different letters that indicate the order of the ..., has however shown that morphology is not a good indicator of natural relationships within the Dacrymycetaceae. As a result several species formerly referred to ''Dacrymyces'' have been mo ...
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