Basidiocarp annual, occasionally resupinate but mostly pileate, sessile or broadly attached, often imbricate or growing together in clusters. Pileus dimidiate to flabelliform, up to 10 cm long and 5 cm from margin to attachment and 0.2-1.5 cm thick, upper surface first orange reddish brown and slightly velutinate, later glabrous and fading to wood-color, concentrically zonate-sulcate, dull to slightly shining, margin thin and often decurrent. Pore surface first bright orange to reddish brown, fading to ochraceous, pale brown or grey, pores round to angular, 6-9 per mm, tubes up to 0.6 cm long, reddish brown. Context white, cream to wood colored, up to 0.6 cm thick. Hyphal system dimitic, generative hyphae with simple septa, thin to thick-walled, 3-5 μm wide, skeletal hyphae up to 8 μm wide. Basidiospores subglobose, hyaline, thin-walled, IKI-, 3.5-5 × 3.5-4 μm.
Specimens：
Taiwan, Pingtung : Pingtung, alt. <100 m, Mar 1991, TFRI 20. Taipei : Wulai, alt. 300 m, Sep 1991, TFRI 107 and TFRI108. Chaiyi : Tapu, alt. 400 m, Sep 1991, TFRI 113.
Habitat：
Lignicolous causing white rot of wood.
Distribution：
Widely distributed in the tropical zone.
References：
Chang, TT. 1992a; Nunez, M and Ryvarden, L. 2000.
Provided：
T. T. Chang
Note：
The fungus is recognized by its reddish basidiocarps with small pores. The fungus is similar to R. lineatus which have larger basidiospores and encrusted cystidia.
Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Poriales 
BCRC Number：