Auricularia angiospermarum

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Auricularia angiospermarum
Auricularia angiospermarum Y.C. Dai, F. Wu & D.W. Li 795223.jpg
Auricularia angiospermarum on dead broadleaf tree, Missouri
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Auriculariales
Family: Auriculariaceae
Genus: Auricularia
Species:
A. angiospermarum
Binomial name
Auricularia angiospermarum
Y.C. Dai, F. Wu & D.W. Li (2015)

Auricularia angiospermarum (wood ear or tree ear) is a species of fungus in the family Auriculariaceae. Basidiocarps (fruitbodies) are gelatinous, ear-like, and grow on dead wood of broadleaf trees. It is a North American species and was formerly confused with Auricularia auricula-judae which is confined to Europe.

Contents

Taxonomy

The species was originally described in 2015 from Connecticut on a fallen oak trunk. It had previously been referred to Auricularia americana 'deciduous unit', [1] but additional molecular research, based on cladistic analysis of DNA sequences, has shown that Auricularia angiospermarum is a distinct species. [2] [3]

Description

Auricularia angiospermarum forms thin, brown, rubbery-gelatinous fruit bodies that are ear-shaped and up to 80 mm (3.1 in) across and 3 mm (0.12 in) thick. The fruitbodies occur singly or in clusters. The upper surface is finely pilose. The spore-bearing underside is smooth. [3]

Microscopic characters

The microscopic characters are typical of the genus Auricularia . The basidia are tubular, laterally septate, 45–65 × 3.5–5  μm. The spores are allantoid (sausage-shaped), 13–15 × 5–5.5 μm. [3]

Similar species

In North America, Auricularia americana is almost identical but grows on conifer wood. [2] [3] On wood of broadleaf trees, Auricularia fuscosuccinea occurs in southern North America and typically has cinnamon-brown to purplish-brown fruitbodies. [1] Auricularia nigricans is also southern, but has a densely pilose upper surface. [1]

Habitat and distribution

Auricularia angiospermarum is a wood-rotting species, typically found on dead attached or fallen wood of broadleaf trees. It is widely distributed in North America, but is not currently known elsewhere. [3]

References

  1. 1 2 3 Looney, B. (2013). "Systematics of the genus Auricularia with an emphasis on species from the southeastern United States" . North American Fungi. doi:10.2509/naf2013.008.006 (inactive 1 July 2025). ISSN   1937-786X.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)
  2. 1 2 Wu F, Yuan Y, He S, Bandara AR, Hyde KD, Malysheva VF, Li D, Dai Y (2015). "Global diversity and taxonomy of the Auricularia auricula-judae complex (Auriculariales, Basidiomycota)". Mycological Progress. 14 (10) 95. doi:10.1007/s11557-015-1113-4. S2CID   16991202.
  3. 1 2 3 4 5 Wu F, Tohtirjap A, Fan L, Zhou L, Alvarenga RL, Gibertoni TB, Dai Y (2021). "Global diversity and updated phylogeny of Auricularia (Auriculariales, Basidiomycota)". Journal of Fungi. 7 (11): 933. doi: 10.3390/jof7110933 . PMC   8625027 . PMID   34829220.
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