Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Poriales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Polyporus badius

Polyporus badius (Pers.:S.F.Gray) Schw., Trans. Am. Phil. Soc. II 4: 155. 1832.

 Description: Basidiocarp annual, laterally to centrally stipitate; solitary or clustered; pileus circular or flabelliform, up to 10 cm wide; upper surface light chestnut brown to dark blackish brown, often darker in the center, azonate, glabrous, smooth or rugose on drying; pore surface white to pale buff, pores circular to angular 5-8 per mm; context pale buff, azonate, corky, up to 1.2 cm thick; tube layer white when young, to slightly darker than context, up to 1 mm thick, decurrent on stipe; stipe black and minutely tomentose at base, chestnut brown and glabrous at apex, up to 5 mm thick. Hyphal system dimitic; generative hyphae thin-walled, with simple-septate 3-5 μm in diam, inconspicuous in mature specimens; contextual skeletal hyphae thick-walled, aseptate, with occasional branching. Basidiospores cylindric, hyaline, smooth, IKI-, 7.5-9 × 3.3-5 μm.

Taiwan, Taoyuan : La-la-shan, alt. 1700 m, on trunk of hardwood, Jan 1994, TFRI 542.

 Habitat: Lignicolous causing white rot of wood.

Temperate species in Europe, North America and Asia.


Chang, TT. 1995.


T. T. Chang

 Note: The fungus differs from the other species in the genus with a dark stipe by lacking clamps of generative hyphae.