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

Hyphodontia heterocystidiata H.X. Xiong, Y.C. Dai & Sheng H. Wu, Mycol. Prog. 8: 161. 2009.
   
 
 
 
 
　Description： Basidiocarp effuse, adnate, membranaceous when young, subceraceous and brittle when old, 50-300 μm thick in section excluding aculei. Hymenial surface cream, pale buff or pale yellowish white, grandinioid or odontioid, cracked when dry; margin paler, thinning out, pruinose. Aculei separate or fused, 6-8 per mm, conical, with fimbriate apices, 500-800 × 300-500 μm. Hyphal system monomitic; hyphae with clamp connections. Subiculum bi-layered: basal layer with dense texture, up to ca. 20 μm thick, colorless; hyphae horizontal, colorless, thick-walled; upper subiculum uniform with a loose texture, up to ca. 30 μm; hyphae colorless, thin- to slightly thick-walled, moderately ramified and somewhat interwoven, 2-4 μm diam. Subhymenium not clearly differentiated. Aculei trama with a dense texture; hyphae slightly flexuous, slightly thick-walled; terminal hyphae usually encrusted. Capitate cystidia numerous, embedded in subiculum and aculei trama, thin-walled, clamped at base, apical cap 5-8 um diam. Leptocystidia cylindrical or clavate, numerous in hymenium, immersed or projecting, thin-walled, with homogeneous contents, 34-51 × 6-9 μm. Basidia suburniform or subclavate with a median constriction, clamped at base, 4-sterigmate, 18.5-20 × 4-5 μm. Basidiospores narrowly ellipsoid, smooth, thin-walled, usually guttulate, IKI–, CB–, (4.2-) 4.4-5.3 (-5.6) × (2.5-) 2.8-3.3 (-3.5) μm.
 
 
 
 
 
　Specimens：

Taiwan. Ilan: Fushan Botanical Graden, alt. 600 m, on angiosperm branch, 08 Aug 1991, Wu 910808-46 (TNM). Nantou: Huisun Forestry, alt. 750 m, on angiosperm branch, 03 Jan 1999, Wu 9901-3 (TNM, holotype); 12 Dec 1997, Wu 9712-20 (TNM); Lienhuachih, alt. 700 m, on angiosperm branch, 30 Apr 1989, Wu 890430 (TNM); 5 Jul 1993, Wu 9307-38 (TNM).
 
 
 
　Habitat： null
 
 
 
　Distribution：

China (South Yunnan), Taiwan.
 
 
 
　References：

Xiong, HX. et al. 2009.
   
   
   
　Provided：

S. H. Wu
 
 
　Note： Hyphodontia heterocystidiata is characterized by a grandinioid or odontioid hymenophore with apically fimbriate aculei, capitate and cylindrical-clavate cystidia, and narrowly ellipsoid basidiospores. It resembles H. fimbriata Sheng H. Wu, but the latter has distinctly smaller basidiospores.