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Grifola frondosa (Dicks.) Gray, Nat. Arr. Brit. Pl. (London) 1: 643 (1821) Boletus frondosus Dicks., Fasc. pl. crypt. Brit. (London) 1: 18 (1785)
Boletus elegans Bolton, Hist. fung. Halifax (Huddersfield) 2: 76 (1788)
Polyporus frondosus (Dicks.) Fr., Syst. mycol. (Lundae) 1: 355 (1821)
Polyporus intybaceus Fr., Epicr. syst. mycol. (Uppsala): 446 (1838) [1836-1838]
Grifola frondosa f. intybacea (Fr.) Pilát, Atlas Champ. l'Europe (Praha) 3(1): 35 (1936) [1935]
Habitat: Weakly parasitic then saprotrophic on roots of deciduous trees, usually Quercus spp., but also reported on Castanea, Corylus, Fagus, Fraxinus, Ilex, Rhododendron ponticum, Sorbu, Pyrus and Ulmus spp. A single collection in herb. K on roots of Cedrus sp.
Notes: Occasional but widespread, but with a distinctly southern distribution in England. Rarely reported elsewhere. The large compound basidiomes, formed at the base of trees or stumps, often smell strongly of 'mouse urine' and are fancifully said to resemble a.
Distribution: E: o, S: !, W: !, NI: !, ROI: !, Other: Channel Islands: !
Vouchers: England: K(M) 91255; Scotland: K(M) 78720; Wales: K(M) 74477 (very old record); NI: K(M) 82097; ROI: K(M) 78719
Descriptions, Lists & Icons:
D+I:, in Phillips, R., Mushrooms and other fungi of Great Britain & Europe: 288 pp. (1981), p. 220
D+I:, in Breitenbach, J., Kränzlin, F., Fungi of Switzerland Non gilled fungi, Heterobasidiomycetes, Aphyllophorales, Gasteromycetes 2: 412 pp. (1986), p. 312, pl. 394
D:, in Hansen, I. & Knudsen, H., Nordic Macromycetes Heterobasidioid, Aphyllophoroid and Gasteromycetoid Basidiomycetes, (Ed.: Lise Hansen & Henning Knudsen) 3: 444 pp. (1997), p. 223
D:, in Ryvarden, L & Gilbertson, R.L., European Polypores: Abortiporus - Lindtneria, (Ed.: Ryvarden L. & Gilbertson R.L) 1: 1-387 (1993), p. 299
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