Polyporales » Polyporaceae » Hornodermoporus

Hornodermoporus martius

Hornodermoporus martius (Berk.) Teixeira 1993, in Cui, et al., Fungal Diversity 97, 137–392 (2019)

Diagnosis: Basidiocarps perennial, pileate, single, corky when fresh, woody hard when dry. Pilei usually ungulate, projecting up to 8 cm, 10 cm wide and 7 cm thick at base. Pileal surface brown to dull black on drying, with a dark brown to black cuticle; margin obtuse. Pore surface white to cream; pores round, 4–5 per mm; dissepiments thick, entire. Context pale buff to wood color, woody, up to 3 cm thick. Tubes distinctly stratified, concolorous with pore surface, hard corky, each layer up to 6 mm thick. Hyphal structure. Hyphal system dimitic; generative hyphae bearing clamp connections; skeletal hyphae strongly dextrinoid, CB+; hyphae unchanged in KOH. Generative hyphae infrequent, hyaline, thin-walled, unbranched, 2–3.4 µm in diam; skeletal hyphae dominant, hyaline, thick-walled with a narrow lumen, occasionally branched, interwoven, 3–4.3 µm in diam.  Generative hyphae infrequent, hyaline, thin-walled, unbranched, 2–3 µm in diam; skeletal hyphae dominant, hyaline, thick-walled with a narrow lumen, occasionally branched, interwoven, 3–4.5 µm in diam. Cystidia abundant, clavate to ventricose, hyaline, thick-walled, encrusted at the apex, 20–37 × 10–25 µm. Basidia clavate, with four sterigmata and a basal clamp connection, 12.5–27 × 8–11 µm; basidioles in shape similar to basidia, but slightly smaller. Basidiospores ellipsoid to amygdaliform, truncate, hyaline, thick-walled, smooth, strong dextrinoid, CB+, (7–)7.5–9(–9.7)×(4–)4.2–5.5(–5.9) µm, L = 8.15 µm, W = 4.96 µm, Q = 1.64 (n = 30/1).

Index Fungorum Number:  IF362615

Notes: Hornodermoporus latissimus and H. martius share similar morphological characters and are difficult to separate. In addition, their distribution areas are overlapped. The main differences are H. latissimus usually produces annual and effused-reflexed to pileate basidiocarps, while H. martius has perennial and pileate basidiocarps.

 

Reference:

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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