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Page number:456 
Remarks (internal):F. punctata resembles O. lundellii, but the latter tends to develop small pilei (never found in F. punctata), has slightly larger pores with no silky lustre, and more rusty colour. Microscopically the lack of setae and the globose, dextrinoid and strikingly cyanophilous spores make F. punctata unmistakable. It was somewhat surprising to find the species so far north. In Europe it is common northwards to the southern boreal zone, occurring only exceptionally in the middle boreal zone (Niemelä & Kotiranta, 1982), and has not been found in the timberline regions. The growth close by the main watercourses is characteristic also for the northernmost occurrences in Europe.
For the authors' citations, see Niemelä & Kotiranta (1982) and Fiasson & Niemelä (1984).
 
Description type:Non-original description 
Description:Fomitiporia punctata (Karst.) Murrill (Fig. 8)
Phellinus punctatus (Karst.) Pil.
Poria punctata Karst.
Perennial; fruit bodies resupinate, 10-15 x 3-6 cm wide, up to 1 cm thick, cinnamon brown; young margin golden yellow, the overwintered and not actively growing areas greyish. Pores round, 5-8 per mm, pore surface with silky lustre. Subiculum and tube layer in section yellow-brown, tubes stratified. Indistinctly dimitic, hyphae inter-grading from thin-walled and hyaline to thick-walled and yellow-brown, simple-septate, 3-5 µm in diameter; hymenium with ampullaceous or bottle-shaped cystidioles; no setae; spores subglobose, thick-walled, 6-8 µm in diameter, IKI red, strongly CB+.
On standing, dead, rather thick stem of Salix planifolia in moist, alluvial plain thicket of the Great Whale River, found only once. Causes a layered, soft white-rot, saproparasitic.


 
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