A Móra Ferenc Múzeum Évkönyve, 1968. (Szeged, 1968)

Gallé, László: The xerothermic lichen species cladonia magyarica VAIN

P. MAGYAR is exposing in his monograph „The sand vegetation like a guide for the sand afforestation" (1933:281-313, Hungarian) that an old endeavour of our acting foresters is to look for soil-marking plants from whose presence a conclusion may be drawn, even without investigating the soil, concerning the quality of ground and so indirectly also concerning the kind of trees with which the area may be planted. Well, Cladonia magyarica belongs to the good soil-marking plants locked for. According to the soil investigation of GY. BODROGKÖZY in the wood at Felső-Ásotthalom, in one of the localities of Cladonia magyarica, the sand soil is containing, besides 7,90-7,95 pH value, 3,76 p. с of CaC0

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, 1,05 p. c. of humus. The humus content is gradually decreasing in a greater depth. A similar pH value was obtained, on the basis of colorimetric local pH measurements, by L. BAKONYI, as well, establingshing (6,5)-7,0-7,5 pH values in the BILISICH wood, as well on the sand soil of the F. KISS wood and „Honvéd" wood. The lichen is, therefore, of a mildly basophilous. The water-realizing of soil in the water column originating from the same level (of 0-20 cm) was 221 mm in five hours. The sand soils occupied by Cladonia magyarica are, as a rule, light brown or yellowish brown, their grain size being 0,02-0,2 mm. Cenological conditions Cladonia magyarica is one of the character species of the synusium Cladonia foliacea - Cladonia magyarica that is creating the moss-level of the different sand plant-associations in the Pannonian flora area. The associations characteristic of the quicksand and containing Cladonia magyarica, as well, are: (1) Festucetum vaginatae (RAP.) SOÓ. a) arrabonicum: County Zala, Nagykanizsa-Sormás (T. PÓCS). b) danubiale: County Pest, Szentendre (J. ZSOLT). - Rákoskeresztúr (T. PÓCS). - Nagykőrös (Z. HARGITAI). - Pócsmegyer (I. KÁRPÁTI). - Vácrátót (I. KÁRPÁTI and Mrs. I. KÁRPÁTI). County Csongrád, Ásotthalom, wood „Emlékerdő" (GY. BODROGKÖZY). - In the same area (L. GALLÉ). - Csengéié wood (L. GALLÉ). - „Honvéd" wood, FERENC KISS wood (L. BAKONYI). (2) Festucetum vaginatae - Corynephoretum danubiale SOÓ. County Pest, Nagykőrös (Z. HARGITAI). County Tolna, Mezőföld (Á. BOROS). (3) Astragalo-Festucetum sulcatae danubiale SOÓ. County Pest, Nagykőrös, in woods „Nagyerdő" and „Pálfája" (Z. HARGITAI). - Rákoskeresztúr (T. PÓCS.) a) Poa angustfolia Typ. County Csongrád, Ásotthalom wood, Dugonics wood, Átokháza wood, Pálinkás wood (GY. BODROGKÖZY). The synthetic list of Cladonia foliacea-Cladonia magyarica synusium is as follows: 251