Polyporales » Phanerochaetaceae

Phaeophlebiopsis

Phaeophlebiopsis Floudas & Hibbett 2015, in Floudas & Hibbett, Fungal Biology, 119(8), 679-719 (2015).

Etymology: From the Greek word ‘φαιός’ (phaeos), which means ‘grey’ and Phlebiopsis, due to the overall similarity to Phlebiopsis, but the grey-brown colour of the fruitbodies for some species.

Diagnosis: Fruitbodies, resupinate, adnate, smooth, and hard, beige to pale brown to grey-brown and occasionally with purple tints, slightly or extensively cracking, periphery either concolorous or brown with very thin white margin, subiculum beige or brown, no hyphal cords. Hyphal system monomitic, without or very rare clamp connections, thin or thick-walled, occasionally with crystals. Subhymenium and subiculum not easy to distinguish from each other, basal tissue relatively thin and then hyphae brown, thick-walled and brittle, or basal tissue well-developed and then hyphae agglutinated, hyaline and very difficult to separate, reminding Phlebiopsis. Cystidia of metuloid appearance, broad in the middle, subulate or more rarely obtuse or clavate, with narrow base, protruding above the hymenium or enclosed in the fruitbody, always thick-walled, very young cystidia can have scarce encrustation, but most cystidia have heavy encrustation of usually coarse crystals. Basidia clavate to subcylindrical, thin-walled, without clamp, forming a dense layer. Basidiospores 3.5–5.5 × 2–3.5 µm, subcylindrical, ellipsoid or ovoid, usually one side flattened and very slightly bent, thin-walled, inamyloid.

Index Fungorum Number: IF811929

Type species: Phaeophlebiopsis caribbeana Floudas & Hibbett 2015, in Floudas & Hibbett, Fungal Biology, 119(8), 679-719 (2015).

Notes: Phaeophlebiopsis is very similar to Phlebiopsis and their separation is not easy. The decision for the introduction of the genus is based on the strongly supported phylogenetic separation of Phaeophlebiopsis and Phlebiopsis by the presence of Hapalopilus rutilans, Rhizochaete, and Phlebia-like species

Species:

Phaeophlebiopsis caribbeana Floudas & Hibbett 2015

Phaeophlebiopsis himalayensis (Dhingra) Zmitr. 2018

Phaeophlebiopsis ignerii Floudas & Hibbett 2015

Phaeophlebiopsis lamprocystidiata (Sheng H. Wu) Zmitr. 2018

Phaeophlebiopsis mussooriensis (Priyanka, Dhingra & N. Kaur) Nakasone & S.H. He 2021

Phaeophlebiopsis peniophoroides (Gilb. & Adask.) Floudas & Hibbett 2015

Phaeophlebiopsis ravenelii (Cooke) Zmitr. 2018

 

Reference:

Floudas, D., & Hibbett, D. S. (2015). Revisiting the taxonomy of Phanerochaete (Polyporales, Basidiomycota) using a four gene dataset and extensive ITS sampling. Fungal Biology, 119(8), 679-719.

 

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