Snow Fungus

Tremella fuciformis

''Tremella fuciformis'' is a species of fungus; it produces white, frond-like, gelatinous basidiocarps . It is widespread, especially in the tropics, where it can be found on the dead branches of broadleaf trees. This fungus is commercially cultivated and is one of the most popular fungi in the cuisine and medicine of China. ''Tremella fuciformis'' is commonly known as snow fungus, snow ear, silver ear fungus, and white jelly mushroom.

''Tremella fuciformis'' is a parasitic yeast, and grows as a slimy, mucous-like film until it encounters its preferred hosts, various species of ''Annulohypoxylon'' fungi, whereupon it then invades, triggering the aggressive mycelial growth required to form the fruiting bodies.
White Jelly Fungus, La Isla Escondida, Colombia Some creative lighting on a tiny blob found on a tree. Possibly Dacrymycetes? This one didn't really have any color. Colombia,Colombia 2018,Colombia South,La Isla Escondida,Putumayo,Snow Fungus,South America,Tremella fuciformis,World

Appearance

Fruit bodies are gelatinous, watery white, up to 7.5 cm across , and composed of thin but erect, seaweed-like, branching fronds, often crisped at the edges. Microscopically, the hyphae are clamped and occur in a dense gelatinous matrix. Haustorial cells arise on the hyphae, producing filaments that attach to and penetrate the hyphae of the host. The basidia are tremelloid , 10–13 by 6.5–10 μm, sometimes stalked. The basidiospores are ellipsoid, smooth, 5–8 by 4–6 μm, and germinate by hyphal tube or by yeast cells.
Snow Fungus (Tremella fuciformis) Growing on a hardwood branch in a dense mixed forest.

I'm pretty sure this ID is right. This specimen has lost some of the strong curvature of its lobes, but I can still see remnants at the edges.

Tremella fuciformis has a relationship with Hypoxylon fungi, but it is unknown whether it is a symbiotic or parasitic relationship.
https://www.jungledragon.com/image/70608/snow_fungus_tremella_fuciformis.html
https://www.jungledragon.com/image/70607/snow_fungus_tremella_fuciformis.html Fall,Geotagged,Tremella fuciformis,United States

Naming

''Tremella fuciformis'' was first described in 1856 by English mycologist Miles Joseph Berkeley, based on collections made in Brazil by the botanist and explorer Richard Spruce. In 1939, Japanese mycologist Yosio Kobayasi described ''Nakaiomyces nipponicus'', a similar-looking fungus that differed by having scattered, dark spines on its surface. Later research, however, showed that the fruit bodies were those of ''Tremella fuciformis'' parasitized by an ascomycete, ''Ceratocystis epigloeum'', that formed the dark spines. ''Nakaiomyces nipponicus'' is therefore a synonym of ''T. fuciformis''.

In Mandarin Chinese, it is called 银耳 , 雪耳 ; or 白木耳 , and in Japanese it is called ''shiro kikurage'' . In Vietnam, it is called ''nấm tuyết'' or ''ngân nhĩ''.

In his book, ''Growing Gourmet and Medicinal Mushrooms'', Paul Stamets lists the following common names for ''Tremella fuciformis'' :
⤷  Yin Er
⤷  White Jelly Fungus
⤷  White Jelly Leaf
⤷  Silver Ear Mushroom
⤷  Snow Mushroom
⤷  Chrysanthemum Mushroom
Snow Fungus (Tremella fuciformis) Growing on a hardwood branch in a dense mixed forest.

I'm pretty sure this ID is right. This specimen has lost some of the strong curvature of its lobes, but I can still see remnants at the edges.

Tremella fuciformis has a relationship with Hypoxylon fungi, but it is unknown whether it is a symbiotic or parasitic relationship.
https://www.jungledragon.com/image/70606/snow_fungus_tremella_fuciformis.html
https://www.jungledragon.com/image/70607/snow_fungus_tremella_fuciformis.html Fall,Geotagged,Snow Fungus,Tremella fuciformis,United States

Distribution

''Tremella fuciformis'' is known to be a parasite of ''Hypoxylon'' species. Many of these species were reassigned to a new genus, ''Annulohypoxylon'', in 2005 including its preferred host, ''Annulohypoxylon archeri'', the species routinely used in commercial cultivation. Following its host, fruit bodies are typically found on dead, attached or recently fallen branches of broadleaf trees.

The species is mainly tropical and subtropical, but extends into temperate areas in Asia and North America. It is known throughout South and Central America, the Caribbean, parts of North America, sub-Saharan Africa, southern and eastern Asia, Australia, New Zealand, and the Pacific Islands.
Snow Fungus (Tremella fuciformis) Growing on a hardwood branch in a dense mixed forest.

I'm pretty sure this ID is right. This specimen has lost some of the strong curvature of its lobes, but I can still see remnants at the edges.

Tremella fuciformis has a relationship with Hypoxylon fungi, but it is unknown whether it is a symbiotic or parasitic relationship.
https://www.jungledragon.com/image/70608/snow_fungus_tremella_fuciformis.html
https://www.jungledragon.com/image/70606/snow_fungus_tremella_fuciformis.html Fall,Geotagged,Snow Fungus,Tremella fuciformis,United States

Habitat

''Tremella fuciformis'' is known to be a parasite of ''Hypoxylon'' species. Many of these species were reassigned to a new genus, ''Annulohypoxylon'', in 2005 including its preferred host, ''Annulohypoxylon archeri'', the species routinely used in commercial cultivation. Following its host, fruit bodies are typically found on dead, attached or recently fallen branches of broadleaf trees.

The species is mainly tropical and subtropical, but extends into temperate areas in Asia and North America. It is known throughout South and Central America, the Caribbean, parts of North America, sub-Saharan Africa, southern and eastern Asia, Australia, New Zealand, and the Pacific Islands.

References:

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassTremellomycetes
OrderTremellales
FamilyTremellaceae
GenusTremella
SpeciesT. fuciformis