Phylum：Basidiomycota　>>　Class： Basidiomycetes　>>　 Order： Agaricales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Brunneocorticium pyriforme
 
   
   
　Author：

Brunneocorticium pyriforme Sheng H. Wu, Mycologia 99: 306. 2007.
   
 
 
 
 
　Description： Basidiocarp resupinate and effuse, 120–220 μm thick, initially appearing as small brown dots composed of abundant skeletal hyphae. Later, a white fertile region developing at center of dot. White fertile zone broadening during growth of basidiocarp, eventually leaving a narrow brown sterile zone at the margin. Hymenial surface of mature basidiocarp white or whitish, smooth, cracked; margin brown, abrupt. Hyphal system dimitic; generative hyphae nodose-septate. Subiculum brown, due to presence of abundant yellowish-brown skeletal hyphae. Subicular generative hyphae colorless, usually difficult to detect, 1.5-3 μm diam., thin-walled; subicular skeletal hyphae abundant, yellowish-brown or brown, occasionally branched, 1.5-4.5 μm diam. Hymenium ± thickening, differentiated from the subiculum, that is of dense texture, usually with numerous amorphous, colorless, excreted material; hyphae mainly vertical, colorless, usually glued together and indistinct, thin-walled. Leptocystidia not abundant, difficult to detect in some collections, cylindrical, occasionally flexuous, colorless, quite often bearing secondary septa, 35-80 × 4-9 μm, thin- or slightly thick-walled. Basidia subclavate with a median constriction, 45-55 × 7-8 μm, 2-sterigmate. Basidiospores pyriform, bearing a minute apiculus, smooth, thin-walled, usually guttulate, colorless, 10-13 × 5.5-7 μm, IKI–, CB–.
 
 
 
 
 
　Specimens：

Taiwan. Taipei: Kungliao, alt. 200 m, 25 Jul 1991, Lin 602 (TNM). Tainan: Hsinhua, Pitou, on branch of angiosperm, 25 Aug 1989, Wu 890825 (TNM). Pingtung: Liukuei, alt. 600 m, on branch of angiosperm, 13 Jul 1989, Wu 890713-6 (TNM). Taitung: Green Island, Youtz Lake, alt. 30 m, on branch of Murraya paniculata var. omphalocarpa, 9 Apr 1998, Chen 774 (holotype, TNM).
 
 
 
　Habitat： null
 
 
 
　Distribution：

China (Yunnan) and Taiwan.
 
 
 
　References：

Wu, SH et al. 2007.
   
   
   
　Provided：

S. H. Wu
 
 
　Note： Phylogenetic analysis placed Brunneocorticium in the euagarics clade of Homobasidiomycetes, and closely related to agaricoid genera such as Marasmiellus, Campanella (Wu et al. 2007). Brunneocorticium is characterized by having a smooth hymenial surface and by possessing a dimitic hyphal system with nodose-septate generative hyphae and abundant yellowish-brown skeletal hyphae. Its basidia are 2-sterigmate and basidiospores are pear-shaped.