Phylum：Basidiomycota　>>　Class： Basidiomycetes　>>　 Order： Polyporales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Phanerochaete sordida
 
   
   
　Author：

Phanerochaete sordida (P. Karst.) J. Erikss. et Ryvarden, Corticiaceae of North Europe (Oslo) 5: 1023. 1978.

Phanerochaete cremea auct. non (Bres.) Parmasto, Consp. Syst. Cort. p. 84, 1968: Lin et Chen, Taiwania 35:102. 1990. (fide Wu 2000) 2000.
   
 
 
 
 
　Description： Macroscopic characters: Basidiocarps resupinate, widely effused, separable, soft when touched, very thick, 600–1020 μm thick, 10 × 20 cm, pelliculose to membranaceous, even, felty in appearance, not cracked or scarcely cracked, pale ochraceous salmon to pale ochraceous buff, turning light buff in 5% KOH; margins thining out. floccose, white or concolorous. Microscopic characters: Basal layer almost none; thickening of basidiocarps by repetitive intermediate layer of context in two strata; intermediate layer thick, 52–930 μm thick, composed of loosely interwoven hyphae; hyphae two types; one type thin-walled, smooth, septate, without clamp connections, 2.5–6.3 μm wide, branched, found in hymenium; the other thick-walled, 3.5–5 μm wide, with the wall 1.8 μm thick, branched, smooth or loosely or densely encrusted, composed of the context, distinct, loosely interwoven; cystidia cylindrical, rarely septate, encrusted with rough crystals around the apex of cystidia, with the crystals dissolved in 5% KOH, thin- to thick-walled, with walls up to 2 μm thick, rounded or obtuse at apex or constricted near apex, distributed only in hymenium, protruding, 15–25 μm high, 50 μm long in total, 5 μm wide near apex, 7.5–8 μm wide at the base of protruding portions, up to 11 μm wide including crystals; hymenial layer 80–90 μm thick, densely compacted, forming palisade; paraphyses clavate, 3 μm wide at apex; basidia broadly clavate; basidiospores only one to be found, not attached on sterigmata, 3.2 × 5 μm, oblong-elliptical, smooth, thin-walled, apiculate, non-amyloid.
 
 
 
 
 
　Specimens：

Taipei Hsien, Mt. Seven-star, on the road side, under the broad-leaved forests, alt. 700 m, Dec. 6, 1975, S.-H. Lin (NTU-4306).
 
 
 
　Habitat： On the dead stems and branches of the broad-leaved trees.
 
 
 
　Distribution：

Europe, North America, South Africa, New Zealand, Kamchatka Peninsula, China, Japan and Taiwan.
 
 
 
　References：

Lin, SH. and Chen, ZC. 1990; Wu, SH. 2000.
   
   
   
　Provided：

S. H. Lin
 
 
　Note： As pointed out by Dr. Hayashi (1974), this species is characterized by the thick and soft context and the thick-walled, branched and encrusted hyphae which constitute the context, but in our specimen, the fruit bodies are not deeply cracked. The cystidia is so ex-tremely special that Price (1973) could not fit it into his recognized category. The cystidia are not typical metuloids even if they are encrusted with crystals. And he finally said that “until more cystidia of this type are described, it would be unwise to propose a new category in which to classify them”.