Ábrahám Levente (szerk.): Válogatott tanulmányok V. - Natura Somogyiensis 17. (Kaposvár, 2010)

ERDŐS, L. & MORSCHHAUSER, T.: A déli gyöngyvesszős cserjés (Helleboro odori-Spiraeetum mediae) a Villányi-hegységben

ERDŐS L. & MORSCHHAUSER T.: HELLEBORO ODORI-SPIRAEETUM MEDIAE 9 one liana, Tamus communis in our relevés. In the herb layer, species of mesophilous forests (e. g. Anemone ranunculoides, Corydalis cava, Corydalis solida, Lilium matagon, Ranunculus jicaria

) occur under the thick shrubs, whereas xerophilous species live in the contact zone to the closed rock sward (e. g. Asplenium javorkeanum, Bromus pannonicus, Festuca rupicola, Teucrium chamaedrys). There are typical edge-species, such as Geranium sanguineum

, but one of the most characteristic edge-species of the shrubforests, Artemisia alba is lacking from here. The Spiraea-stands are resting-places of wild animals, that contributes to the high diversity of the association, due to the local disturbances. This fact is pointed out by the great amount of the weeds and disturbancetolerants. Table 1: Coenological relevés of the association Helleboro odori-Spiraeetum mediae of the Szársomlyó Mt. 1 2 3 4 5 A-D K% Exposition N N N N NW Declination (°) 35 33 33 38 32 Height a. s. 1. (m) 401 397 404 411 405 Canopy cover (%) 25 10 20 15 15 Canopy height (m) 3 4 4 4 5 Shrub layer cover (%) 90 92 90 90 92 Shrub layer height (m) 2 1.5 1.5 1.7 2 Herb layer cover (%) 30 45 30 35 35 Herb layer height (m) 1 1.2 0.8 1.2 0.8 Character and differential species Spiraea media B 75 85 85 75 80 75-85 100 Spiraea media C 10 10 10 8 10 8-10 100 Helleborus odorus C 2 2.5 1 2 4 1-4 100 Aconitum anthora C 0.1 0.1 0.1 0.1 0 0.1 80 Galium lucidum C 0 0.1 0.1 0 0.1 0.1 60 Tamus communis B 0 0 0 0 0.2 0.2 20 Tamus communis C 0 0 0 0 0.1 0.1 20 Festuco-Brometea species Asplenium trichomanes C 0.2 Bromus pannonicus C 3 Festuca rupicola c 0.5 Filipendula vulgaris c 2 Geranium sanguineum c 3 Asplenium javorkeanum c 0.1 Teucrium chamaedrys c 0.1 Thymus odoratissimus c 1 Verbascum phoeniceum c 0.1 Koeleria majoriflora c 0 Pseudolysimachion spicatum c 0.1 Anthericum ramosum c 0.1 Elymus hispidus c 0 Orlaya grandiflora c 0.1 Chamaecytisus ratisbonensis c 0 Dianthus giganteiformis ssp. pontederae c 0.1 Helianthemum ovatum c 0 Hesperis tristis c 0 Koeleria cristata c 0.1 Lathyrus sphaericus c 0 Potentilla recta c 0 Ranunculus illyricus c 0 Stachys recta c 0 0.2 0.1 0.1 0.1 0,1-0,2 100 0.5 0.5 0.5 0.5 0,5-3 100 0.1 4 0.5 3 0,1-4 100 0.5 2 0.1 2 0,1-2 100 2.5 3 1.5 0.1 0,1-3 100 0.2 0.1 0 0.1 0,1-0,2 80 0.1 0.5 0 0.2 0,1-0,5 80 0.1 0 0.1 0.1 0,1-1 80 0.1 0.2 0 0.1 0,1-0,2 80 0.2 0.1 0.2 0 0,1-0,2 60 0.1 0 0 0.1 0.1 60 0 0.1 0 0 0.1 40 0 0.1 0 0.1 0.1 40 0 0 0 0.1 0.1 40 0 0 0 0.1 0.1 20 0 0 0 0 0.1 20 0.1 0 0 0 0.1 20 0 0.1 0 0 0.1 20 0 0 0 0 0.1 20 0 0 0 0.1 0.1 20 0.1 0 0 0 0.1 20 0.1 0 0 0 0.1 20 0.1 0 0 0 0.1 20