Marisia - Maros Megyei Múzeum Évkönyve 29-30/2. (2010)

Botany

Mesophilic grasslands of Molinio-Arrhenatheretea class of Sighisoara- Tárnává Mare site

Variae Syntaxa_____________________________

Clinopodium vulgare_________________________ + - + - - - II

Gypsophylla muralis__________________________ + - + - - - II

Hypericum perforatum________________________ - — — + - + II

Juncus tenuis_______________________________ + — + — — — II

Lotus tenuis — - — — + + II

Polygonum mite_____________________________ - - + — - + II

Rorippa sylvestris____________________________ - + — + — - II

Species present in one relevé: Bromus commutatus (1), Carex distans (1), Cerastium holosteoides (1), Cichorium intybus (1), Cynosurus cristatus (1), Dianthus armeria (1), Galium mo Hugo (1), Lolium perenne (1), Poa palustris (1), Stachys germanica (1), Angelica sylvestris (2), Carex lepidocarpa (2), Eleo charis palustris (2), Eupatoriam cannabinum (2), Rhinanthus rumelicus (2), Scirpus sylvaticus (2), Stachys officinalis (2), Symphytum officinale (2), Veronica scutellata (2), Carex hirta (3), Carex ovalis (3), Calamagrostis epigeios (4), Galega officinalis (4), Rumex crispus (4), Stellaria aquatica (4), Vicia cracca (4), Anagalis arvensis (5), Anagalis foemina (5), Centauriumpulchellum (5), Cirsium canum

(5) , Euphorbia palustris (5), Fagopyrum convolvulus (5), Setaria viridis (5), Silene vulgaris (5), Thalictrum lucidum (5), Chenopodium album ssp.viride (6), Cruciata laevipes (6), Daucus carota (6), Inula helenium (6), Plantago lanceolata

(6) , Plantago major (6), Trifolium repens (6).

Location and date of releves: R1 - Vulcan, N 46° 09’, E 24° 51’, 2006.07.19; R2 - §ae?, lake, N 46° 09’, E 24° 46’, 2006.07.22; R3 - $arpatoc, N 46° 09’, E 24° 50’, 2006.07.25; R4 - Ruja; N 46° 08’, E 24° 38’, 2007.07.23; R5 - between Teline si Reds; N 46° 02’, E 24° 53’, 2007.07.30; R6 - Retis; N 46° 02’, E 24° 52’, 2007.08.06.

Junco inflexi-Menthetum longifoliae Lohm. 1953

Such phytocoenoses are present in moist meadows of streams, on moist soil. They develop in groups, in dense clusters over an area exceeding 25 m2. These coenoses were identified in Gránari, at an altitude of 565 m. The floristic composition reveals the presence of 21 cormophytes species that have 77.5% coverage. The edifying species are Juncus inflexus (AD4) and Mentha longifolia (AD1). The inventory of flora species shows the presence of species of Filipendulenion: Lysimachia vulgaris, Epilobium hirsutum, of Calthion: Myosotis scorpioides, Scirpus sylvaticus, Trifolium hybridum, and those in Molinietalia: Cirsium rivulare, Deschampsia caespitosa, Galium uliginosum, Potentilla reptans, Stachys officinalis and Valeriana officinalis. Of Molinio-Arrhenatheretea class are present: Dactylis glomerata, Lysimachia nummularia, Ranunculus repens and Ononis arvensis. To the characteristic species of this order and class, add plants of Phragmitetea class: Epilobium parviflorum, Lythrum salicaria.

Holcetum lanati Issler 1936

The association has been identified in the Härtibaci Valley, at an altitude of 515—520 m. Two plant relevees were made in: Netu§ and Retij. It is a secondary association, usually present in wet meadows. Phytocoenoses have a heterogeneous floristic composition consisting of 66 cormophytic species, species of the Molinio-Arrhenatheretea class in majority (59.09%). The constituents of phytocoenoses have 81.5% - 90% coverage. Thus, beside the characteristic species (Holcus lanatus, AD34), the following species of Molinietalia are present: Agrostis stolonifera, Centaurium pulchellum, Deschampsia caespitosa, Galium uliginosum, Inula britannica and Trifolium hybridum.

There is a significant contingent of characteristic species of the class: Achillea millefolium, Alopecurus pratensis, Anthoxanthum odoratum, Briza media, Centaurium Erythraea, Cerastium holosteoides, Cichorium intybus, Dactylis glomerata, Daucus carota, Festuca rubra, Lotus corniculatus, Luzula campestris, Medicago lupulina, Ononis arvensis, Plantago lanceolata, Prunella vulgaris, Ranunculus acris (AD2) Rhinanthus angustifolius, Rumex acetosa, Stachys officinalis, Stellaria graminea, Trifolium pratense, Trifolium repens.

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