Phylum：Basidiomycota　>>　Class： Basidiomycetes　>>　 Order： Polyporales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Cerinomyces aculeatus
 
   
   
　Author：

Cerinomyces aculeatus Maekawa, Can. J. Bot. 65: 583. 1987..
   
 
 
 
 
　Description： Basidiocarp effuse, ± attached to substratum, membranaceous, 80-250 μm thick in section (hyphal pegs excluded). Hymenial surface pale clay in color, smooth in outline but covered with minute granules due to projecting hyphal pegs, without cracks; margin pale in color, thinning outwards, filamentose-pruinose; hyphal pegs separate, sometimes indistinct, 50-100 μm diam., projecting up to ca. 100 μm above hymenium. Hyphal system monomitic; hyphae nodose-septate. Subiculum fairly uniform, with medullary layer and relatively loose texture; hyphae moderately ramified, somewhat interwoven, colorless, fairly distinct and straight, 2-4 μm diam., with thin to ca. 1 μm thick walls, anastomoses occasional. Subhymenium thickening, with dense texture, differentiated from subiculum; hyphae more vertical and narrower than those in subiculum. Cystidia lacking. Basidia clavate when mature, 22-42 × 5-7 μm, usually with oil-drops, 2-sterigmate; sterigmata large, first obtuse, finally acute, length up to ca. 25 μm. Basidiospores suballantoid, smooth, thin-walled, usually with small oil-drops, (12-) 13-16 (-18) × 4.5-6.5 (-7) μm (?x =14.08 ± 1.25 × 5.65 ± 0.58 μm, n = 30, from spore-print), IKI－, CB－.
 
 
 
 
 
　Specimens：

Taiwan: Taipei, Yangmingshan, alt. 400 m, on fallen branch of angiosperm, 24 Jul 1991, Wu 910724-39 (TNM).
 
 
 
　Habitat： null
 
 
 
　Distribution：

Japan (type locality), Taiwan.
 
 
 
　References：

Wu, SH. 1991.
   
   
   
　Provided：

S. H. Wu
 
 
　Note： This species has only been reported once from Japan by Maekawa (1987). Characteristics of the Taiwanese specimen are very similar to those of Japanese, except that the type specimen has longer hyphal pegs protruding into its hymenium. It is possible that the Taiwanese specimen represents the younger stage. Cerinomyces altaicus Parmasto resembles C. aculeatus by the similar size of basidiospores, which are rarely septate in both species; but the fruit bodies of the former species lack hyphal pegs. The comparatively thick hyphal-walls of C. aculeatus are quite distinct, and comparison of related species has been made by Maekawa (1987).