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Page number:118 
Remarks (internal):Trechispora mollusca is easily distinguishable from other species of Trechispora in forming the poroid hymenial surface and producing the broadly ellipsoid and finely echinulate basidiospores. 
Description type:Non-original description 
Description:Trechispora mollusca (Persoon: Fries) Liberta, Canad. J. Bot. 51: 1878. 1973. (Fig. 84)
? Boletus molluscus Pers., Synop. Meth. Fung., 547, 1801.
Distribution: Asia [China (Hjortstam and Ryvarden, 1988), India (Rattan, 1977)], Australasia, Europe, and North America. New to Japan.
Basidiomata resupinate, loosely adnate, easily separable, effused, fragile, up to 1,800 µm thick; hymenial surface white to "Buff", poroid; pores angular, 2-15 per mm²; margin white, thinning out, arachnoid, fibrillose or fimbriate, sometimes producing hyphal strands. In section subhyaline, membranous, subhymenium lacking. Hyphal system monomitic; hyphae 2-6.5 µm in diam, smooth, nodose-septate, thin-walled, often ampullate at the septa, sometimes encrusted with irregularly shaped crystalloid materials; cystidia lacking, but sometimes globose, thin-walled vesicles. 15-30 µm in diam, present in the subiculum; basidia sometimes pleural, clavate to cylindrical, slightly constricted, 9-16.5 x 4-6 µm, with a basal clamp, producing 4 sterigmata; basidiospores broadly ellipsoid to ellipsoid, warted (warts up to 0.25 ,um in length), 3.5-5x2.5-3 µm (excluding warts), thin-to slightly thick-walled (up to 0.25 µm), non-amyloid.
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