Ischnoderma benzoinum (Wahlenb.) P. Karst., Acta Soc. Fauna Flora fenn. 2(no. 1): 32 (1881) [1881-1885] Boletus benzoinus Wahlenb., Fl. suec. 2: 1076 (1826) Polyporus benzoinus (Wahlenb.) Fr., Elench. fung. (Griefswald) 1: 100 (1828)
Habitat: In woodland or plantations, on dead and decayed wood of conifers such as Abies, Araucaria, Picea, Pinus and Pseudotsuga spp., often covering large fallen trunks.
Notes: Generally uncommon, but increasingly recorded in southern and south-eastern England. Very similar to Ischnoderma resinosum with few distinct differences. Immature basidiomes have a soft, sappy consistency (the 'leptoporoid’ stage) later becoming hard and fertile (the 'fomitoid' stage).
Distribution: E: o, S: !
Vouchers: England: K(M) 27582; Scotland: K(M) 155399
Descriptions, Lists & Icons: D+I:, in Breitenbach, J., Kränzlin, F., Fungi of Switzerland Non gilled fungi, Heterobasidiomycetes, Aphyllophorales, Gasteromycetes 2: 412 pp. (1986), p. 314, pl. 398 D:, in Hansen, I. & Knudsen, H., Nordic Macromycetes Heterobasidioid, Aphyllophoroid and Gasteromycetoid Basidiomycetes, (Ed.: Lise Hansen & Henning Knudsen) 3: 444 pp. (1997), p. 224 D:, in Ryvarden, L & Gilbertson, R.L., European Polypores: Abortiporus - Lindtneria, (Ed.: Ryvarden L. & Gilbertson R.L) 1: 1-387 (1993), p. 355
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