Phylum：Basidiomycota　>>　Class： Basidiomycetes　>>　 Order： Hymenochaetales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Hyphodontia nongravis
 
   
   
　Author：

Hyphodontia nongravis (Lloyd) Sheng H. Wu, Mycotaxon 76: 59. 2000.

Basionym: Polyporus nongravis Lloyd, Mycol. Writ. 6: 891. 1919.
   
 
 
 
 
　Description： Basidiocarp effuse-reflexed, sometimes with slightly pileate margins, spongy or harder, ± adnate, membranaceous, fibrillose. Context up to ca. 2 mm thick in the reflexed part, much thinner in the effused part. Hymenial surface cream, poroid; margin paler, fairly determinate, shortly filamentous. Pores angular, 3-4 per mm; tube layer up to 2 mm deep, dissepiments 50-150 μm thick. Abhymenial surface of pileus cream, villose. Hyphal system dimitic; generative hyphae clamped. Context with fairly loose texture; generative hyphae colourless, 1.5-3.5 μm diam., thin-walled; skeletal hyphae colourless, 2.5-5.5 μm diam., with 0.7-1.5 μm thick walls, with distinct lumen. Trama with moderately dense texture; generative hyphae and skeletal hyphae similar to those of context. Capitate cystidia numerous, distributed in context, trama, and hymenial layer, colourless, up to 100 μm long, with 6.5-12.5 μm diam. swollen apices, thin- or slightly thick-walled, encrusted with brownish yellow resinous material. Encrusted cystidia distributed in hymenium, colourless, cylindrical, 15-30 × 3-6 μm (encrustation excluded), usually thick-walled. Basidia suburniform, 12-18 × 4.5-5.5 μm, 4-sterigmate. Basidiospores ellipsoid, adaxially flattened, smooth, thin-walled, guttulate, 4-5.2 × 3.3-4 μm, IKI–, CB–.
 
 
 
 
 
　Specimens：

Taiwan. Nantou: Huisun Forest Farm, alt. 600 m, on branch of Schima superba, 1 Jun 1997, Wu 9706-1 (TNM). Pingtung. Kengting National Park, Lanjenshan, alt. 250 m, on branch of angiosperm, 17 Jun 1992, Wu 9206-73 (TNM).
 
 
 
　Habitat： null
 
 
 
　Distribution：

Sri Lanka, Yunnan (China), Taiwan.
 
 
 
　References：

Wu, SH. 2000.
   
   
   
　Provided：

S. H. Wu
 
 
　Note： Ryvarden (1990) regarded Polyporus nongravis as a synonym of Schizopora flavipora. Macroscopically the former is separated from the latter in having much thicker basidiomata, which are usually reflexed towards margins. Microscopically, H. nongravis differs from H. flavispora in having encrusted cystidia. The "skeletals" of H. flavipora and H. tropica are usually confined to the tramal region, while these elements are distributed in the contextual and tramal regions of H. nongravis. In possessing ±pileate basidiomata and encrusted cystidia, Hyphodontia nongravis resembles Schizopora cystidiata David & Rajchenb. It differs from the latter in having skeletal hyphae and capitate cystidia, additionally having slightly shorter basidiospores.