Fungalpedia – Note 2407, Tyromyces
Tyromyces P. Karst.
Citation when using this data: Yuan HS et al. 2020 – Fungalpedia, Basidiomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1, 2
Classification: Incrustoporiaceae, Polyporales, Incertae sedis, Agaricomycetes, Agaricomycotina, Basidiomycota, Fungi
Tyromyces is a large, cosmopolitan genus that occurs in almost all types of forests from boreal to the tropics (Gilbertson and Ryvarden 1987; Ryvarden and Melo 2014; Dai 2012). The genus is characterized by annual, pileate basidiocarps which are sappy when fresh becoming rigid and fragile when dry; a white to cream pore surface, a momomitic to dimitic hyphal system with clamp connections on the generative hyphae; allantoid to ovoid, thin-walled basidiospores without reaction in IKI and production of a white rot-type (Núñez and Ryvarden 2001; Ryvarden and Melo 2014).
Type species: Tyromyces minutulus Y.C. Dai & C.L. Zhao, in Yuan et al., Fungal Diversity 104: 142 (2020).
Other accepted species: Species Fungorum – search Tyromyces.
Figure 1 – Basidiocarps of Tyromyces minutulus (BJFC017406, holotype) and the combination taxon Antrodiella descendena (holotype). a, b Tyromyces minutulus. c, d Antrodiella descendena. Scale bars: a = 0.5 cm, e–f = 2 mm
Figure 1 – Microscopic structures of Tyromyces minutulus (BJFC017406, holotype). a Basidiospores. b Basidia and basidioles. c Cystidioles. d Hyphae from trama. e Hyphae from context. Scale bars: a = 5 μm, b–e = 10 μm
References
Dai YC 2012 – Pathogenic wood-decaying fungi on woody plants in China. Mycosystema 31: 493–509.
Gilbertson, RL, Ryvarden, L 1987 – North American polypores. Megasporus-Wrightoporia. Fungiflora, Oslo.
Núñez M, Ryvarden L 2001 – East Asian polypores 2. Polyporaceae s. lato. Synop Fungorum 14:165–522.
Ryvarden L, Melo I 2014 – Poroid fungi of Europe. Syn Fung 31:1–455.
Entry by
Hai-Sheng Yuan, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, People’s Republic of China, University of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
Published online 5 May 2026