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Page number:673 
Remarks (public):Trechispora mollusca is recognized mainly by its small spores, the lack of
vesicular bodies, the large inflations in the subicular hyphae, and the small druse-like crystals, like those seen in Skeletocutis.
Description type:Non-original description 
Description:Trechispora mollusca (Pers.:Fr.) Liberta, Can. J. Bot. 5 I :1878, 1973. - Polyporus molluscus Pers.:Fr., Syst. Mycol. 1:384, 1821. - Boletus molluscus Pers., Syn. Fung. p. 547. 1801.
Basidiocarps annual, resupinate, effused up to 6 cm, very soft and fragile, readily separable; margin white, often very thin, arachnoid, rhizomorphic; pore surface white, cream coloured to pale straw coloured, the pores round to irregular, 2-5 per mm, with thin, pubescent dissepiments that become lacerate with age; context white, azonate, soft, less than 0.5 mm thick; tube layer continuous and concolorous with the context, soft and fragile, up to 1 mm thick; taste mild.
Hyphal system monomitic; subicular hyphae thin-walled, hyaline, often ampullate and encrusted, frequently branched, with clamp connections, 2-3 µm in diam; tramal hyphae similar, those in the dissepiments often covered with fine crystals, in the cords or rhizomorphs up to 6 µm wide and with frequent ampullaceous swellings and many with
small bipyramidic crystals.
Cystidia or other sterile hymenial elements absent.
Basidia short-cylindric, often with a slight median constriction, 4-sterigmate, 10-14 x
4.5-5.5 µm, with a basal clamp.
Basidiospores ovoid to subglobose, hyaline, densely echinulate, negative in Melzer's
reagent, 3.5-4 x 3-3.5 µm.
Type of rot. White rot of hardwood and conifer wood.
Cultural characteristics. See Nobles 1958.
Sexuality. Unknown.
Substrata. Dead wood of hardwoods including Acer, Alnus, Betula, Corylus, Fagus,
Populus, Quercus, Robinia, Salix, Sorbus and conifers including Abies, Picea and Pinus
besides on dead basidiocarps of Fomes fomentarius and Phellinus spp.
Distribution. Probably throughout the forest regions of Europe, but distribution
uncertain due to confusion with the other poroid Trechispora species described here. It has not been found in Danish and English collections examined by Larsson. Found north
to 70°N in Norway. Also found in North America and Iran.
Taxon name: