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

Gallé, László: The xerothermic lichen species cladonia magyarica VAIN

Material production of Cladonia magyarica Our investigations the material production of Cladonia magyarica. For that purpose we have investigated ten lichen plants covering a soil surface of 1 sq. dm each. The collected matter was first pured macroscopically from the pedicles of the mosses, from the podetia of other lichens, from the mouldy foliageleaves and other vegetable particles, animal excrements, carrions of perished insects, etc. Then we have removed the grains of sand sticked to the rhizinae on the surface of a metal sieve with the water spout from the water-mains of high pressure applied two times for ten minutes. The matter pured in this way was dried in an exsiccator in 120° С for 24 hours. After drying, we have messured it again and, computing an average of the result of measurements we have got the mean value of the material production for one sq. dm. Finally, having heated the lichen patterns, we have burned their organic matter. Extracting the residual weight of ashes from the weight of the dried matter, we have got the value of the organic matter production for a surface of one sq. dm. For establishing the total organic product appearing on the sand surface together with the lichen thalluses, we have weighed the foreign matter collected with the single samples, as well. The sum of the weights of the dried lichen matter and of the foreign organic matter is giving the value of the total material production for one sq. dm on the locality of Cladonia magyarica. From these values - multiplied by ten - the quantity of the material production for one sq. m. can be established easily. The results are summarized in the following table: MATERIAL PRODUCTION OF CLADONIA MAGYARICA Чч О Weight of the total Weight of the purified lichen material Quantity of the removed •'Weight of the ash remained after being The organicmatter content of the JiJÍ Weight of the total Quantity of the removed •'Weight of the ash remained after being lichen mass investigated G Сч § В production before drying after drying water heated lichen mass investigated i or one s q, dm in g r a m m e s 1. 22,30C 10,100 9,350 0,650 1,820 7,530 2. 14,150 7,850 6,920 0,930 1,555 5,365 3. 14,730 9,320 8,150 1,170 1,605 6,550 4. 17,900 8,480 7,150 1,330 1,835 5,315 5. 17,150 7,130 6,100 1,030 1,035 5,065 6. 23,950 11,350 10,540 1,810 1,210 9,330 7. 16,940 7,590 6,510 1,080 1,550 4,960 8. 16,610 10,910 9,600 1,310 1,610 7,990 9. 11,770 8,920 7,710 1,210 1,680 6,030 10. 16,100 8,200 7,350 0,950 1,420 5,930 In average 17,160 8,980 7,930 1,147 1,932 6,406 247