Checklist of the British & Irish Basidiomycota

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Macrolepiota mastoidea (Fr.) Singer, Lilloa 22: 417 (1951) [1949]

Agaricus mastoideus Fr., Syst. mycol. (Lundae) 1: 20 (1821)
Agaricus gracilentus Krombh., Naturgetr. Abbild. Beschr. Schwämme (Prague) 4: 8 (1836)
Lepiota mastoidea (Fr.) P. Kumm., Führ. Pilzk. (Zwickau): 135 (1871)
Lepiota gracilenta (Krombh.) Quél., Mém. Soc. Émul. Montbéliard Sér. 2 5: 71 (1872)
Lepiota umbonata (Schumach.) J. Schröt., Trans. & Proc. Roy. Soc. S. Australia 55: 154 (1931)
Lepiota rickenii Velen., Novitates Mycologicae: 47 (1939)
Macrolepiota gracilenta (Krombh.) Wasser, Ukr. bot. Zh. 35(5): 516 (1978)
Macrolepiota rickenii (Velen.) Bellù & Lanzoni, Beitr. Kenntn. Pilze Mitteleur. 3: 196 (1987)

Habitat: On soil in deciduous woodland.

Notes: Occasional in England, and most frequently in southern counties. Rarely reported elsewhere but apparently widespread. Some authors consider M. gracilenta a distinct species.

Distribution: E: o, S: !, W: !, NI: !, ROI: !

Vouchers: England: K(M) 67431; Scotland: K(M) 101084; Wales: K(M) 101104; NI: K(M) 101115; ROI: K(M) 9299

Descriptions, Lists & Icons:
D+I:, in Breitenbach, J., Kränzlin, F., Fungi of Switzerland Agarics, 2nd part: Entolomataceae, Pluteaceae, Amanitaceae, Agaricaceae, Coprinaceae, Bolbitiaceae 4: 368 pp. (1995), as Macrolepiota mastoidea, p. 216, pl. 251
D+I:, in Phillips, R., Mushrooms and other fungi of Great Britain & Europe: 288 pp. (1981), as Lepiota mastoidea [slender form], p. 26-27
D+I: Profiles of Fungi - 47 Macrolepiota mastoidea, in Pegler, D.N. & Brand, A.W., The Mycologist 6(4): 161-207 (1992), p. 186

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