Polyporales » Polyporaceae


Cryptoporus (Peck) Shear 1902, in Cui, et al., Fungal Diversity 97, 137392 (2019)

Diagnosis: Basidiocarps annual, pileate, solitary, ungulate to oblate spheroidal. Pilei cream to deep pinkish buff; margin of pilei extending over the pore surface as a volva with a small basal opening. Pore surface pale to dark brown; pores round; dissepiments thick, entire. Context cream to buff. Tubes obviously paler than pore surface, hard corky. Hyphal system trimitic; generative hyphae bearing clamp connections; skeletal hyphae dominant, hyaline, non-dextrinoid, cyanophilous. Cystidia absent; cystidioles fusiform. Basidia clavate, with four sterigmata and a basal clamp connection. Basidiospores cylindrical to oblong-ellipsoid, hyaline, thick-walled, smooth, IKI, CB+.

Cryptoporus was established by Shear (1902). Species in the genus have petiolate or nearly sessile basidiocarps with the margin of the pilei extending over the pore surface as a volva with a small basal opening. The hyphal system is trimitic with clamped generative hyphae and non-dextrinoid skeletal hyphae, and basidiospores are thick-walled, hyaline and cylindrical (Gilbertson & Ryvarden 1987). The genus was suggested to be closely related to Trametes Fr. due to the trimitic hyphal system and cylindrical basidiospores (Ryvarden 1991). Hibbett and Donoghue (1995) inferred that Cryptoporus and Trametes belong to one of their seven studied groups based on a phylogenetic classification of the Polyporaceae through parsimony analysis of mitochondrial ribosomal DNA sequences. Moreover, Ganoderma P. Karst. is the closest genus to Cryptoporus among the genera that they studied. Cryptoporus has long been known as a monotypic genus, with the generic type of C. volvatus (Peck) Shear, until C. sinensis Sheng H. Wu & M. Zang (Wu and Zang 2000) was described.

Index Fungorum NumberIF17416

Type species: Cryptoporus volvatus (Peck) Shear 1902, in Cui, et al., Fungal Diversity 97, 137392 (2019)



Cryptoporus sinensis Sheng H. Wu & M. Zang 2000

Cryptoporus volvatus (Peck) Shear 1902

Cryptoporus volvatus var. pleurostoma (Pat.) Sacc. 1907

Cryptoporus volvatus var. torreyi (W.R. Gerard) Shear 1902

Cryptoporus volvatus var. volvatus (Peck) Shear 1902




Cui, Bao-Kai & Li, Hai-Jiao & Ji, Xing & Zhou, Jun-Liang & Song, Jie & Si, Jing & Yang, Zhu-Liang & Dai, Yu-Cheng. (2019). Species diversity, taxonomy and phylogeny of Polyporaceae (Basidiomycota) in China. Fungal Diversity 97, 137392

Gilbertson RL, Ryvarden L (1987) North American polypores  2. Fungiflora, Oslo

Hibbett DS, Donoghue MJ (1995) Progress toward a phylogenetic classification of the Polyporaceae through parsimony analyses of ribosomal DNA sequences. Canadian Journal of Botany (Suppl. 1): S853S861

Ryvarden L (1991) Genera of polypores. Nomenclature and taxonomy. Synop Fungorum 5:1363

Shear CL (1902) Mycological notes and new species. Bull Torrey Bot Club 29:449457

Wu SH, Zang M (2000) Cryptoporus sinensis sp. nov., a new polypore found in China. Mycotaxon 74:415422


About Basidiomycota

The webpage Basidiomycota provides an up-to-date classification and account of all genera of the phylum Basidiomycota.


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