Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)

Bohus, G.: Soil acidity and the occurrence of fungi in deciduous forests

Table 15. Basophilous species — Occurrence between pH 7.0-8.5—

Regulation of fruitbodies — (Abbreviations see on pages 75, 78) Species Locality and collectin date of Association Soil pH at 0-20 cin (* = = 0-10) Regulation investigations Alteration in pH value of unbuffered solutions depth Agaricus bitorquis Budapest Budapest Pesthidegkut 6.5.1971 10.5.1971 31.8.1972 H H LG 8.2* 7.4* 7.7 4.1 5.8 4.1 5.5 4.1 5.4 5.0 5.8 5.0 5.9 5.1 5.7 Agaricus bitorquis v.nánayi Bogyiszló 5.1960 SI 7.48.4 7.3* Mithrophora semilibera B.Szép völgy 25.4.1971 LG 7.48.4 7.3* Morchella conica Szentendre 19.4.1971 LG 7.9 Morchella esculenta Isaszeg Isaszeg Isaszeg Isaszeg Péterimajor B.Szép völgy Szentendre 3.5.1970 6.5.1970 7.5.1970 7.5.1970 8.5.1970 25.4.1971 1.5.1971 LG LG R 7.0* 7.5 4.0 6.5 4.0 6.5 4.0 6.4 4.0 6.2 4.0 6.1 5.2 6.5 5.2 6.7 5.2 6.4 5.2 6.4 5.2 6.2 Regulation of mycelium thallus Agaricus bitorquis v.nánayi 4.3.1970 4.0 6.3 5.2 6.3 Mesophilous-basophilous forests: FO = Fageto-Ornetum hungaricum — FQ = Festuco-Quercetum roboris — MQ = Ceraso (mahaleb)-Quercetum pubescentis — OQ = Orneto-(Lithospermo-) Quercetum praeillyrico-matricum — TF = Tilio-Fraxinetum hungaricum Various localities : H = Hortus -— LG = Locus graminosus — R = Robinietum — SC = Silva culta — SI = Silva inundata — SM = Silva mixta — SMC — Silva mixta culta * = Value estimated on the basis of the other measurements in the same place. The estimated value can be utilized primarily in strongly acidophilous communities, since the reaction of their substrate is rather uniform. Remarks 1. Only one anomalous species could hitherto be observed, namely Leccinum griseum, which regulates mostly below pH 5, though it accompanies hornbeam through its diverse associations.