Biology:Tremella dysenterica

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Short description: Species of fungus

Tremella dysenterica
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Tremellomycetes
Order: Tremellales
Family: Tremellaceae
Genus: Tremella
Species:
T. dysenterica
Binomial name
Tremella dysenterica
Möller (1895)

Tremella dysenterica is a species of fungus in the family Tremellaceae. It produces bright yellow, red-spotted, lobed to subfrondose, gelatinous basidiocarps (fruit bodies) and is parasitic on other fungi on dead branches of broad-leaved trees. It was originally described from Brazil and has been recorded elsewhere in the neotropics and in Africa.

Taxonomy

Tremella dysenterica was first published in 1895 by German mycologist Alfred Möller based on a collection made in Brazil.[1]

Description

Fruit bodies are gelatinous, bright watery-yellow to deep yellow with orange to scarlet spots and streaks, up to 4 cm (1.5 in) across, and lobed to weakly frondose. Microscopically, the basidia are tremelloid (ellipsoid, with oblique to vertical septa), 4-celled, 14 to 18 by 8 to 12 μm. The basidiospores are ellipsoid, smooth, 5.5 to 8.5 by 4 to 5.5 μm.[2]

Similar species

Tremella rubromaculata, described from Guatemala without reference to T. dysenterica, appears macroscopically very similar but differs microscopically in having larger basidiospores (8 to 10.5 by 6 to 8 μm) and basidia.[3]

Habitat and distribution

Tremella dysenterica is a parasite on lignicolous fungi, but its host species is unknown, though collections have been noted on pyrenomycetes.[4] It is found on dead, attached or fallen branches of broad-leaved trees.

The species is currently known from Brazil,[1][2] Belize,[4] and Cameroon.[5]

References

  1. 1.0 1.1 "On some species of Tremella described by Alfred Möller". Mycologia 75 (5): 854–863. 1983. doi:10.2307/3792776. 
  2. 2.0 2.1 Roberts P, de Meijer AAR. (1997). "Macromycetes from the state of Paraná, Brazil. 6. Sirobasidiaceae & Tremellaceae". Mycotaxon 64: 261–283. 
  3. Lowy B. (1971). Flora Neotropica 6: Tremellales. New York: Hafner. ISBN 0-89327-220-5. 
  4. 4.0 4.1 Roberts P. (2008). "Heterobasidiomycetes from Belize". Kew Bulletin 63 (1): 87–99. doi:10.1007/s12225-007-9006-6. 
  5. Roberts P. (2001). "Heterobasidiomycetes from Korup National Park, Cameroon". Kew Bulletin 56 (1): 163–187. doi:10.2307/4119434. 


Wikidata ☰ Q108440036 entry