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

Hyphodontia capitatocystidiata H.X. Xiong, Y.C. Dai & Sheng H. Wu, Mycol. Prog. 8: 161. 2009.
   
 
 
 
 
　Description： Basidiocarp effuse, adnate, arachnoid-farinaceous, 60-100 μm thick excluding aculei. Hymenial surface grayish white to cream, grandinioid, not cracked when dry; margin paler, thinning out, arachnoid-pruinose. Aculei usually separate, 12-15 per mm, conical, 150-400 × 100-250 μm. Hyphal system monomitic; hyphae with clamp connections. Subiculum uniform, composed of medullary layer, usually with loose texture with granular crystals; hyphae colorless, thin- to slightly thick-walled, moderately ramified, interwoven, 2-3 μm diam. Subhymenium not clearly differentiated. Aculei trama with compact texture; granular crystals common in aculei. Cystidia capitate, numerous, presented in subiculum and aculei tips, with slightly swollen bases, clamped at base, thin- to slightly thick-walled, 15-37 × 4-5 μm, apical cap 4-5 μm diam. Basidia suburniform or subclavate with a median constriction, clamped at base, 4-sterigmate, 14-23 × 4-5 μm. Basidiospores broadly ellipsoid, smooth, thin-walled, usually with one oily drop, IKI–, CB–, (4-) 4.1-5.6 (-5.7) × 3.5-4.3 (-4.6) μm.
 
 
 
 
 
　Specimens：

Taiwan. Hualien: Tiensiang, alt. 450 m, on culm of Poaceae sp., 27 Jan 1989, Wu 890127-6 (holotype, TNM).
 
 
 
　Habitat： null
 
 
 
　Distribution：

Taiwan.
 
 
 
　References：

Xiong, HX. et al. 2009
   
   
   
　Provided：

S. H. Wu
 
 
　Note： Hyphodontia capitatocystidiata is similar to H. pilaecytidiata (S. Lundell) J. Erikss. for they both have capitate cystidia. The latter species has longer aculei (1-5 mm in H. pilaecytidiata) and distinctly larger cystidia (50-70 × 7-10 μm, Eriksson and Ryvarden 1976). H. capitata (Boidin & Gilles) Hjortstam also possesses capitate cystidia, but has much larger basidiospores (7-9.8 × 4.5-5.5 μm, Boidin & Gilles 1986). H. cunninghamii Gresl. & Rajchenb. develops much larger capitate cystidia than H. capitatocystidiata. Another similar species is H. rimosissima (Peck) Gilb. which has cylindrical or slightly capitate cystidioles that are usually apically encrusted and smaller capitate cystidial elements in the subiculum (Wu 1990). Hyphodontia capitatocystidiata grows on culms of Poaceae while the other species in Hyphodontia grow on angiosperm or gymnosperm wood.