Tulasnella violea

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Tulasnella violea
2012-02-24 Tulasnella violea (Quel.) Bourdot & Galzin 201059.jpg
Tulasnella violea, Austria
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Cantharellales
Family: Tulasnellaceae
Genus: Tulasnella
Species:
T. violea
Binomial name
Tulasnella violea
(Quél.) Bourdot & Galzin (1909)
Synonyms
  • Hypochnus violeusQuél. (1883)
  • Corticium violeum (Quél.) Costantin & L.M. Dufour (1891)

Tulasnella violea is a species of fungus in the order Cantharellales. Basidiocarps (fruit bodies) are typically smooth, ceraceous (waxy), violet-pink or lilaceous to grey, and occur on the underside of fallen branches and logs. It is one of the more conspicuous Tulasnella species and appears to be distributed worldwide. Though normally saprotrophic, Tulasnella violea can form a mycorrhizal association with orchids. [1] [2]

Contents

Taxonomy

The species was originally described in 1883 by French mycologist Lucien Quélet who emphasized the lilac-pink colour of the fruit bodies and gave basidiospore measurements, but failed to notice the distinctive basidia and placed it among the corticioid fungi in the old form genus Hypochnus. The species was transferred to Tulasnella by French mycologists Hubert Bourdot and Amédée Galzin in 1909. In his 1933 review of the Tulasnellaceae American mycologist Donald P. Rogers extended the concept of T. violea, which he considered "highly variable", to include as synonyms a number of previously described species including T. eichleriana and T. thelephorea . [3] In a 1994 revision of species, British mycologist Peter Roberts rejected Rogers' synonymy, but noted that differences in spore sizes suggested it was "possible that more than one taxon is involved" under the name T. violea. [4]

Molecular research, based on cladistic analysis of DNA sequences, has confirmed T. violea represents a species distinct from T. eichleriana, though type specimens have not yet been sequenced. [5] According to a 2016 paper, it remains possible that "more than one taxon is involved" under the name T. violea. [6]

Description

Basidiocarps (fruit bodies) are effused, smooth, ceraceous (waxy), violet-pink to grey. Microscopically the hyphae are 3.5–5(−7) μm wide, lacking clamp connections. The basidia are mostly clavate, 8–16 x 5–9 μm. The sterigmata are globose to ellipsoid, becoming clavate, fusiform, or mitriform (mitre-shaped), 4.5–6.5 μm wide, variously extending up to 35 μm long. The majority of basidiospores are globose to broadly ellipsoid, 5.5–9 x 5.5–7.5 μm. [4] The anamorph produces monilioid hyphae (chains of swollen hyphal compartments), with compartments up to 8.5 μm diam. [1]

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<i>Ceratobasidium</i> Genus of fungi

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<span class="mw-page-title-main">Tulasnellaceae</span> Family of fungi

The Tulasnellaceae are a family of fungi in the order Cantharellales. The family comprises mainly effused (patch-forming) fungi formerly referred to the "jelly fungi" or heterobasidiomycetes. Species are wood- or litter-rotting saprotrophs, but many are also endomycorrhizal associates of orchids and some have also been thought to form ectomycorrhizal associations with trees and other plants.

<i>Tulasnella</i> Genus of fungi

Tulasnella is a genus of effused (patch-forming) fungi in the order Cantharellales. Basidiocarps, when visible, are typically smooth, ceraceous (waxy) to subgelatinous, frequently lilaceous to violet-grey, and formed on the underside of fallen branches and logs. They are microscopically distinct in having basidia with grossly swollen sterigmata on which basidiospores are formed. One atypical species, Tulasnella aurantiaca, produces orange to red, gelatinous, pustular anamorphs on wood. Some species form facultative mycorrhizas with orchids and liverworts. Around 80 species of Tulasnella are known worldwide.

<i>Volvopluteus michiganensis</i> Species of fungus

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<i>Phaeotremella frondosa</i> Species of fungus

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<i>Naematelia</i> Genus of fungi

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<i>Naematelia aurantia</i> Species of yellow, parasitic fungus

Naematelia aurantia is a species of fungus producing yellow, frondose, gelatinous basidiocarps. It is widespread in north temperate regions and is parasitic on another species of fungus that grows on dead attached and recently fallen branches of broadleaf trees. It is commonly called golden ear in North America.

<i>Naematelia encephala</i> Species of fungus

Naematelia encephala is a species of fungus producing pink, brain-like, gelatinous basidiocarps. It is widespread in north temperate regions and is parasitic on another species of fungus that grows on dead attached and recently fallen branches of conifers. In the UK, its recommended English name is conifer brain.

<i>Cystobasidium fimetarium</i> Species of fungus

Cystobasidium fimetarium is a species of fungus in the order Cystobasidiales. It is a fungal parasite forming small gelatinous basidiocarps on various ascomycetous fungi on dung. Microscopically, it has auricularioid basidia producing basidiospores that germinate by budding off yeast cells. The species is known from Europe and North America.

<i>Sirobasidium</i> Genus of fungi

Sirobasidium is a genus of fungi in the order Tremellales. Basidiocarps are gelatinous and appear to be parasitic on ascomycetous fungi on wood. Microscopically they are distinguished by producing septate basidia in chains which give rise to deciduous sterigmata. Species are distributed worldwide.

Phaeotremella fimbriata is a species of fungus in the family Phaeotremellaceae. It produces blackish, frondose, gelatinous basidiocarps and is parasitic on the mycelium of Stereum rugosum, a fungus that grows on dead attached and recently fallen branches of broad-leaved trees. It is widespread in northern Europe. Prior to 2017, the species was generally considered a synonym of Tremella foliacea, but this latter species is restricted to conifers. Phaeotremella frondosa is a similar-looking but paler, brown species on broad-leaved trees and occurs in North America as well as Europe.

Phaeotremella roseotincta is a species of fungus in the family Phaeotremellaceae. It produces pinkish to pale pinkish brown, frondose, gelatinous basidiocarps and grows on dead attached and recently fallen branches of broad-leaved trees. It was originally described from Japan and has also been recorded from far eastern Russia.

Tremella brasiliensis is a species of fungus in the family Tremellaceae. It produces yellow, lobed to firmly foliaceous, gelatinous basidiocarps and is parasitic on other fungi on dead branches of broad-leaved trees. It was originally described from Brazil.

Tremella roseolutescens is a species of fungus in the family Tremellaceae. It produces rose-pink to salmon, pustular, gelatinous basidiocarps and is parasitic on other fungi on dead attached branches of broad-leaved trees. It was originally described from Costa Rica.

Tremella salmonea is a species of fungus in the family Tremellaceae. It produces pale orange to salmon, foliose, gelatinous basidiocarps and is parasitic on other fungi on wood of broad-leaved trees. It was originally described from China.

Tremella versicolor is a species of fungus in the family Tremellaceae. It produces small, pustular, gelatinous basidiocarps and is parasitic on the basidiocarps of Peniophora species, a genus of corticioid fungi, on dead attached or recently fallen branches. It was originally described from England.

Tremella mesenterella is a species of fungus in the family Tremellaceae. It produces yellowish to reddish brown, foliose, gelatinous basidiocarps and is parasitic on corticioid fungi on dead branches of broadleaf trees and shrubs. It was originally described from Canada.

Phaeotremella translucens is a species of fungus in the family Phaeotremellaceae. It produces small, pustular, gelatinous basidiocarps and is parasitic on ascocarps of Lophodermium species on decaying pine needles. It was originally described from Scotland.

References

  1. 1 2 Warcup JH, Talbot PH (1971). "Perfect states of Rhizoctonias associated with orchids II". New Phytologist. 70: 35–40.
  2. Oberwinkler F, Cruz D, Suárez JP (2017). "Biogeography and ecology of Tulasnellaceae". Ecol. Stud. 230: 237–271.
  3. Rogers DP (1933). "A taxonomic review of the Tulasnellaceae". Annales Mycologici. 31: 181–203.
  4. 1 2 Roberts P (1994). "Globose and ellipsoid-spored Tulasnella species from Devon and Surrey, with a key to the genus in Europe". Mycological Research. 98: 1431–1452.
  5. Cruz D, Suárez JP, Kottke I, Piepenbring M (2014). "Cryptic species revealed by molecular phylogenetic analysis of sequences obtained from basidiomata of Tulasnella". Mycologia. 106: 708–22. doi:10.3852/12-386.
  6. Cruz D, Suárez JP, Piepenbring M (2016). "Morphological revision of Tulasnellaceae, with two new species of Tulasnella and new records of Tulasnella spp for Ecuador". Nova Hedwigia. 102: 279–338. doi:10.1127/nova_hedwigia/2015/0304.