Basidiocarp resupinate, effuse, adnate. Context up to ca. 700 μm thick in section. Hymenial surface cream, turning cork-colored when old, poroid, not cracked; margin rather determinate, paler, forming an immature zone. Pores angular or circular, 1-2 per mm; tubes up to 600 μm deep, with numerous pegs. Hyphal system dimitic; generative hyphae nodose-septate. Context fairly homogeneous, with dense texture and numerous crystals. Contextual generative hyphae colorless, 1.5-3 μm diam., thin-walled; skeletal hyphae dominant in context, rarely branched, colorless or yellowish, 2-4 μm diam., sometimes almost solid, ± dextrinoid. Trama with dense texture. Subhymenium not thickening. Cystidia lacking. Basidia utriform, with a stalked base, 30-40 × 7-8.5 μm, 4-sterigmate. Basidiospores cylindrical, colorless, smooth, thin-walled, 10-12 (-14) × 4-5.5 μm, IKI–, CB–.
Specimens：
Taiwan. Nantou: Lienhuachih, alt. 720 m, on branch of angiosperm, 17 Oct 1994, Chen 246 (TNM). Kaosiung: Liukuei, Shanping, alt. 750 m, on branch of angiosperm, 22 Dec 1993, Wu 9312-54 (TNM); Sanming, alt. 580 m, on branch of angiosperm, 23 Dec 1993, Wu 9312-84 (TNM). Pintung: Kenting National Park, Chufengshan, alt. 100 m, on branch of angiosperm, 31 Aug 1994 (TNM).
Habitat：
null
Distribution：
Pantropical and subtropical.
References：
Wu, SH. 1996.
Provided：
S. H. Wu
Note：
I found that the basidia of M. setulosa, type species of the genus, are utriform in shape. The utriform basidial shape is rare in polypores, and is taxonomically important.
Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Polyporales 
BCRC Number：