Trulla

Trulla is a fungal genus in the family Steccherinaceae containing six species of polypores. It was circumscribed by mycologists Otto Miettinen and Leif Ryvarden in 2016, as a continuation of prior work that outlined a revised framework for the Steccherinaceae based on molecular phylogenetics.[1] Its closest relative in the Steccherinaceae is the genus Nigroporus, from which it differs in its light-coloured fruit bodies and monomitic context.[2]

Trulla
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Steccherinaceae
Genus:
Trulla

Miettinen & Ryvarden (2016)
Type species
Trulla dentipora
(Ryvarden & Iturr.) Miettinen & Ryvarden (2016)

The generic name Trulla, from the Latin word for "ladle", alludes to the spatulate (spoon-like) shape of the fruit bodies. Microscopic characteristics of the genus include spores that are curved and cylindrical, cyanophilic skeletal hyphae (staining blue if the microscopic stain Lactophenol Cotton Blue is applied) and slightly thick-walled, wide generative hyphae in the context.[2]

Species

Trulla contains six species that were transferred from various other polypore genera, including Antrodiella, Polyporus, Leptoporus, Coriolus, and Tyromyces. Additional phylogenetic analysis may reveal more species hidden in the T. duracina species complex.[2]

  • Trulla crustulina (Bres.) Miettinen (2016)
  • Trulla dentipora (Ryvarden & Iturr.) Miettinen & Ryvarden (2016)
  • Trulla duracina (Pat.) Miettinen (2016)
  • Trulla meridae Miettinen & Ryvarden (2016)
  • Trulla ochrotinctella (Murrill) Miettinen (2016)
  • Trulla polyporoides (Ryvarden & Iturr.) Miettinen & Ryvarden (2016)

Distribution

Most species of Trulla are found in tropical areas, although in some cases the distribution extends to south temperate regions in North America and Asia. Like all members of the Steccherinaceae, Trulla are wood-decay fungi that cause a white rot in dead wood.[2]

References
  1. Miettinen, Otto; Larsson, Ellen; Sjökvist, Elisabet; Larsson, Karl-Henrik (2012). "Comprehensive taxon sampling reveals unaccounted diversity and morphological plasticity in a group of dimitic polypores (Polyporales, Basidiomycota)". Cladistics. 28 (3): 251–270. doi:10.1111/j.1096-0031.2011.00380.x. S2CID 84643554.
  2. Miettinen, Otto; Ryvarden, Leif (2016). "Polypore genera Antella, Austeria, Butyrea, Citripora, Metuloidea and Trulla (Steccherinaceae, Polyporales)". Annales Botanici Fennici. 53 (3–4): 157–172. doi:10.5735/085.053.0403. S2CID 84739655.
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