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

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

weakly acidic soils. The fruitbodies regulate between 5.0-6.5 pH. They can be

s subdivided into two groups: 1. ,,Acido-subacidophilous species I" prefer strongly acidic substrates, occuring in the interval 4.0-6.0 pH (Table 12). 2. " Acido-subacidophilous species II" occur both on strongly or on weakly acidic soils, between, the values 4.0-6.5 (7.0) pH (Table 13). R%: (Species occuring most frequently on weakly acidic soils). In 1967 only a few species could be relegated to this group. Their great majority occur in the subacidophilous forests, not owing to the weak acidity of the soil but as litter species. (It is known that in the conditions prevailing in Hungary, a thicker litter cover Table 8. Regulation investigations of complete pH series. Detail — Regulation of fruitbodies — (Abbreviations see on pages 75, 78) Locality and date of collecting Species Alteration in pH value of unbuffered solutions Locality and date of collecting Species Isaszeg 9.5.1970 Morchella esculenta 3.1 5.1 4.0 G.2 Ô .1 6.3 G.O G.3 7.0 6.6 8 .0 7.0 Morchella esculenta 3.1 5.4 4.0 6.4 5 .1 G.4 Ü.0 6.4 7.0 6.7 8 .0 7.0 V. Apátkutivalley 4.7.1970 Boletus edulis 3.1 3.8 4.1 4.6 5 0 4.8 6.0 4.8 7.1 5.1 8 0 6.1 Gantharellus cibarius f. neglectus 3.1 5.0 4.1 5.3 '> 0 5.6 6.0 5.6 7.1 5.7 8 0 6.1 Lactarius pergamenus 3.1 4.G 4.1 5.4 5 0 5.5 6.0 5.6 7.1 5.8 8 0 6.1 Ramaria f

ormosa 3.1 4.1 4.1 4.7 5 0 4.7 6.0 4.7 7.1 5.0 8 0 5.7 Russula acri folia 3.1 4.1 4.1 5.5 5 0 5.7 G.O 5.7 7.1 6.0 8 0 6.5 13. Remetehegy 8.7.1970 Russula cyanoxantha 3.1 4.3 4.1 5.2 5 0 5.3 6.0 5.4 7.1 5.6 8 0 6.2 Russula foetens 3.1 4.4 4.1 5.6 5 0 5.7 6.0 5.7 7.1 G.O 8 0 6.5 Russula furcata 3.1 4.5 4.1 5.5 5 0 5.7 6.0 5.8 7.1 5.9 S 0 6.2 Tiussula vesca 3.1 4.4 4.1 5.3 5 0 5.6 6.0 5.6 7,1 5.8 8 0 6.3 V. Lomhegy 28.8.1970 Boletus aereus 3.1 3.4 4.1 4.2 5 0 4.4 6.1 4.4 7.1 5.0 8 0 G.O Galoporus cristatus 3.1 4.1 4.1 5.3 5 0 5.6 6.1 5.6 7.1 5.8 8 0 G.3 Gantharellus cibarius 3.1 4.8 4.1 5.5. 5 It 5.8 G.l 5.8 7.1 5.9 8 0 6.3 Leccinum griseum 3.1 3.9 4.1 4.8 5 0 5.0 6.1 5.0 7.1 5.3 8 0 5.6 Ramaria botrytis 3,1 3.8 4.1 4.9 5 0 5.1 G.l 5.1 7.1 5.5 8 0 6.2 M. Nagylápafö 1.9.1970 Amanita muscaria 3.1 3.5 4.0 4.7 5 1 5.1 Ü.2 5.2 7.0 5.8 8 0 6.5 Boletus calopus 3.1 3.5 4.0 4.8 5 1 4.9 6.2 5.1 7.0 5.3 8 0 6.3 Boletus pinicola 3.1 3.4 4.0 4.6 5 1 5.0 6.2 5.0 7.0 5.4 8 0 G.2 Ramaria flava 3.1 3.5 4.0 4.4 5 1 4.7 6.2 4.7 7.0 5.3 8 0 6.3 Rozites caperaia 3.1 3.6 4.0 4.8 5 1 5.1 6.2 5.2 7.0 5.5 8 0 6.3 Russula emetica 3.1 3.8 4.0 4.9 5 ! 5.1 6.2 5.1 7.0 5.4 8 0 6.1 B. Tökhegy 5.9.1970 Boletus edulis 3.1 3.5 4.0 4.6 5 1 4.7 6.2 5.0 7.0 5.5 8 1 6.3 Dermocybe phoenicea 3.1 3.3 4.0 4.6 5 1 4.7 6.2 4.8 7.0 5.3 8 1 G.3 Lactarius chrysorrheus 3.1 4.0 4.0 5.3 5 1 5.3 6.2 5.4 7.0 5.5 8 1 6.1 Leccinum aurantiacum v. quercinum 3.1 3.3 4.0 4.0 5. 1 4.1 6.2 4.1 7.0 4.4 8 1 6.0