Phallales »  Meruliaceae » Hydnophanerochaete

Hydnophanerochaete odontoidea

Hydnophanerochaete odontoidea (Sheng H. Wu) Sheng H. Wu & C.C. Chen 2018, in Chen, et al., MycoKeys 39, 75 – 96 (2018)

Basionym: Phanerochaete odontoidea Sheng H. Wu, Botanical Bulletin of the Academia Sinica 41: 169 (2000)

Diagnosis: Basidiocarps annual, effused, adnate, ceraceous, somewhat brittle, 50–200 μm thick in section (aculei excluded). Hymenial surface initially buff, with age turning ochraceous to pale brown, no colour changes in KOH, tuberculate to grandinioid when young, becoming odontioid to hydnoid with age, extensively cracked; margin paler to whitish, fairly determinate. Aculei conical to cylindrical, usually separate, with obtuse to acute apex, 1–4 per mm, up to 100–700 × 100–250 μm.  Hyphal system basically monomitic, some specimens with quasi-binding hyphae near substratum; generative hyphae simple-septate. Subiculum fairly uniform, composed of a basal layer of compact texture; generative hyphae mainly horizontal, colourless, 4–6 μm diam., with 0.8–1 µm thick walls; quasi-binding hyphae sometimes present near substratum, colourless, 1–3 µm diam. Hymenial layer thickening, with compact texture, generative hyphae somewhat vertical, colourless, 3–6 μm diam., slightly thick-walled. Trama of aculei of compact texture; generative hyphae mainly vertical, other features similar to those in subiculum; crystal masses present near apex. Cystidia lacking, but projecting hyphal ends in the hymenium may be present. Basidia clavate, 14–18 × 4.5–5.5 μm, 4-sterigmate. Basidiospores narrowly ellipsoid to cylindrical, adaxially slightly concave, smooth, thin-walled, homogeneous, inamyloid, non-dextrinoid, acyanophilous, 6–8.1 × 2.5–3.3 μm.

Index Fungorum Number: IF824078

 

 

Figure 1. Basidiocarp surfaces a Hydnophanerochaete odontoidea (holotype of Phanerochaete subodontoidea, CWN 00776) b Odontoefibula orientalis (holotype, Wu 0910-57). Scale bar: 1 mm.

 

Figure 2.  Hydnophanerochaete odontoidea (holotype of Phanerochaete subodontoidea, CWN 00776) a Part of the vertical section of subiculum near substratum b Quasi-binding hyphae. Scale bar: 5 μm (a–b).

 

Reference:

Chen, C. C., & Wu, S. H., & Chen, C. Y. (2018). Hydnophanerochaete and Odontoefibula, two new genera of phanerochaetoid fungi (Polyporales, Basidiomycota) from East Asia. MycoKeys 9, 75 – 96.

 

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