Polyporales » Polyporaceae

Lignosus

Lignosus Lloyd ex Torrend 1920, in Cui, et al., Fungal Diversity 97, 137–392 (2019)

Diagnosis: Basidiocarps annual, centrally stipitate, solitary; stipe arising from a distinct sclerotium in the ground. Pilei more or less circular, white to brownish, glabrous to velutinate, usually concentrically zonate. Pore surface cream to buff; pores round to angular; dissepiments thin, entire. Context cream. Hyphal system trimitic; generative hyphae bearing clamp connections; skeletal hyphae IKI–, CB–. Basidiospores cylindrical to ellipsoid, hyaline, thin-walled, smooth, IKI–, CB–.

Index Fungorum Number:  IF17977

Type species: Lignosus sacer (Afzel. ex Fr.) Torrend 1920

Notes: Lignosus is characterized by centrally stipitate and solitary basidiocarps arising from a distinct sclerotium in the ground, a trimitic hyphal system with clamped generative hyphae, hyaline and thin-walled, cylindrical to ellipsoid basidiospores that are negative in Melzer’s reagent and Cotton Blue. It occurs in tropical areas (Cui et al. 2011).

Species:

Lignosus cameronensis Chon S. Tan 2013

Lignosus dimiticus Ryvarden 1975

Lignosus ekombitii Douanla-Meli 2003

Lignosus goetzei (Henn.) Ryvarden 1972

Lignosus hainanensis B.K. Cui 2011

Lignosus rhinocerus (Cooke) Ryvarden 1972

Lignosus sacer (Afzel. ex Fr.) Torrend 1920

Lignosus tigris Chon S. Tan 2013

 

References:

Cui B.K., & Tang, L.P., & Dai, Y.C. (2011). Morphological and molecular evidences for a new species of Lignosus (Polyporales, Basidiomycota) from tropical China. Mycological Progress 10, 267–271

Cui, B.K., & Li, H.J., & Ji, X., & Zhou, J.L., & Song, J. & Si, J., & Yang, Z.L., & Dai, Y.C. (2019). Species diversity, taxonomy and phylogeny of Polyporaceae (Basidiomycota) in China. Fungal Diversity 97, 137–392

 

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