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 Add this item to the list  Poria carbonica Overh. Fig. 91
   
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Page number:107 
Description type:Non-original description 
Description:Poria carbonica Overh. Fig. 91
Canad. Jour. Res. 21, C:232. 1943 (DAOM; BPI; PAC; S; SYRF), also in Mycologia 38:204, 1946.
Occasionally perennial, becoming widely effused, up to 15 mm thick, adnate, taste slightly resinous; margin more or less resinous-appearing, or tan and usually tomentose, sometimes fimbriate, narrow, usually determinate; pore surface white or cream colored, dull, the tubes more or less waxy, up to 15 mm long, often soon becoming stuffed, pores round to somewhat angular, 3-5 per mm, edges rather thin to rather thick, entire; context white, firm, somewhat fibrous and waxy, up to 5 mm thick, with a cartilaginous layer next the substratum, continuing without change into the trama.
Tissue not changing color in KOH; hyphal system probably trimitic, the context of sparse generative hyphae which are infrequently branched, thin-walled, nodose-septate, 3-6 µm in diameter, of skeletal hyphae which are rarely branched, thick-walled, nonseptate, 3-11 µm in diameter; and of intricately branched, thin- to thick-walled, nonseptate binding hyphae 2-7 µm in diameter that intergrade in their characteristics with the skeletal hyphae; layer next the substratum of more or less fused hyphae; tramal tissue continuous with the context and of similar hyphae; context and trama pale to dark blue in IKI; hymenium 12-16 µm thick; cystidia none; basidia clavate, 12-14 x 5-6 µm,; spores hyaline, smooth, IKI -,oblong to oblong-ellipsoid, 4.5-7 x 1.5-2.5 µm;
On gymnosperms in Mont., Idaho, Brit. Col., Wash., Ore., Cal., and Guatemala, and reported from Morocco and India; associated with a brown rot. Resupinate Trametes serialis is similar, but differs in having more slender hyphae and more fibrous context.
Malençon (Soc. Mycol. France Bul. 71:301-306. 1955) reports in detail on this in Morocco, and it is said to be an important decay agent in the Himalayan conifer forests in India (Rev. Appl. Mycol. 39:442. 1960). Davidson and others (Mycologia 39:313-327. 1947) report that it causes decay of gymnosperm boat timbers.
For its cultural characteristics see Lombard and Gilbertson (1965, p. 61).
 
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