Agaricales » Cystostereaceae


Rigidotubus J. Song, Y.C. Dai & B.K. Cui, in Song et al., Phytotaxa 333(2): 263 (2018)


Etymology: Rigidotubus (Lat.): referring to the tough and poroid basidiomata

Diagnosis: Rigidotubus is characterized by resupinate, tough and poroid basidiomata, a monomitic hyphal system with clamped generative hyphae, and ovoid to ellipsoid basidiospores.

Basidiomata annual, resupinate, adnate, tough. Pore surface white to gray when dry, pores round to angular, dissepiments thin, entire to lacerate. Margin sterile, irregular, white, up to 3 mm wide. Hyphal system monomitic, generative hyphae hyaline, thin-walled, with clamp connections, IKI, CB–. Cystidia and cystidioles absent. Basidia clavate, with four sterigmata and a basal clamp connection. Basidiospores ovoid to ellipsoid, thin-walled, hyaline, IKI, CB–.

Index fungorum number: IF823702

Type species: Rigidotubus tephroleucus J. Song, Y.C. Dai & B.K. Cui 2018, in Song et al., Phytotaxa 333(2): 263 (2018)



SONG, J., XING, J.-H., JI, X., SUN, Y.-F., CUI, B.-K., & DAI, Y.-C. (2018). Rigidotubus tephroleucus gen. et sp. nov. (Cystostereaceae, Agaricales) evidenced by morphological characters and phylogenetic analyses. Phytotaxa, 333(2), 259. doi:10.11646/phytotaxa.333.2.10


About Basidiomycota

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


Supported by 

Thailand Science Research and Innovation (TSRI)

project entitled:

"Macrofungi diversity research from the Lancang-Mekong Watershed and surrounding areas"

(Grant No. DBG6280009)


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  • The State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.3 1st Beichen West Rd., Chaoyang District, Beijing 100101, P.R. China

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