Fróðskaparrit - 01.01.2004, Blaðsíða 226

224 ALTITUDINAL DISTRIBUTION OF PLANT COMMUNITIES IN THE FAROE ISLANDS
Table 3. Details of thefour communities belonging to open grassland vegetation. For each species in the
communities, abundance and constancy are given: 1) Koenigia islandica community, 2) Festuca vivipara-
Agrostis capillaris community, 8) Bistorta vivipara-Festuca vivipara community and 11) Deschampsia flexuosa-
Rhytidiadelphus loreus community. Species in bold type are indicator species for the communities. Roman
numerals from 1-V indicate the constancy ofspecies in the community. See text forfurther details.
Communities i 2 8 11
number of plots 34 208 16 17
aspect N,S N,S N N
vegetation cover (%) 10 35 83 89
pH 5.8 5.6 5.5 5.3
slope (degrees) 14 26 30 30
vegetation height (cm) 2 5 7 11
number of taxa 41 132 54 60
taxa/plot 5 9 13 16
Character species:
Koenigia islandica 4 9/V 2/11 1/11
Agrostis capillaris 3/11 7/III 2/IV 11/V
Festuca vivipara 4/11 7/III 14/V 3/1II
Bistorta vivipara l/II 7/11 14/V 3/IV
Deschampsia flexuosa l/I 2/1 l/II 19/V
Rhytidiadelphus loreus x/I 1/1 1/111 12/V
Carex bigelowii 1/1 l/II 8/V
Polytrichum spp. 1/1 3/II 5/III 11/V
Rhytidiadelphus squarrosus x/I 1/1 2/11 4/V
Festuca rubra 2/11 6/1II 3/1V 6/V
Agrostis canina 2/11 4/11 5/IV 4/IV
Racomitrium lanuginosum 4/11 5/11 12/1V 2/1II
Salix herbacea 2/1 2/11 3/1II 4/1V
Thalictrum alpinum 3/II 11/IV l/II
Silene acaulis 1/1 5/IV 2/1II
Luzula spicata 1/1 1/1 1/IV x/11
Galium saxatile l/l 2/II 3/1II
Liverworth spp 6/1 3/II 2/III l/III
Rumex acetosa x/I x/I 4/III
Ranunculus acris var. pumilus x/I l/III x/II
Saxifraga stellaris 2/II 1/1 l/III x/II
Hylocomium splendens x/I I/III
Additional species witli constancy less than III: Agmstis stolonifera, Alchemilla faroensis, Alchemilla alpina, Alchemilla filicaulis, Anthoxanthum
odoratum, Armeria maritima, Aulacomnium turgidum, Bartramia ithyphylla, Blechnum spicant, Blindia acuta, Botrychium lunaria, Breutelia chrysocoma,
Bryumsp., Calluna vulgaris, Campylopus atrovirens, Campylopus schwarzii, Campylopus sp., Cardaminopsis petraea, Carex binervis, Carex demissa,
Carex echinata, Carex nigra, Carex panicea, Carex pilulifera, Carex pulicaris, Carex saxatilis, Cerastium alpinum, Cerastium arvense, Cerastium fontanum,
Cetraria islandica, Cladonia cervicornis, Cladonia furcata, Cladonia portentosa, Cladonia uncialis, Cochlearia officinalis, Dactylorhiza maculata,
Deschampsia alpina, Deschampsia cespitosa, Dicranella heteromalla, Dicranella sp., Dicranum scoparium, Diphasiastrum alpinum, Drepanocladus
uncinatus, Epilobium alsinifolium, Epilobium anagallidifolium, Epilobium lactiflorum, Eriophorum angustifolium, Eriophorum vaginatum, Euphrasia
arctica, Euphrasiafrigida, Euphrasia micrantha, Euphrasia ojficinalis .Euphrasia scottica, Hieracium officinalis, Huperzia selago, Hypericum pulchrum,
Hypnum cupressiforme, Isopterygium elegans, Isopterygium pulchellum, Isothecium myosuroides, Juncus articulatus, Juncus biglumis, Juncus bufonius,
Juncus bufonius, Juncus bulbosus, Juncus squarrosus, Linum catharticum, Listera cordata, Lotus corniculatus, Luzula arcuata, Luzula multiflora, Luzula
sylvatica, Mnium hornum, Mnium stellare, Nardus stricta, Narthecium ossifragum, Omalotheca supina, Oxyriu digyna, Peltigera cania, Pinguicula vulgaris,
Plagiothecium undulatum, Plantago lanceolata, Plantago maritima, Pleurozium schreberi, Poa alpina, Poa glauca, Pogonatum urnigerum, Pohlia nutans,
Polygala serpyllifolia, Polytrichum alpinutn, Potentilla erecta, Prunella vulgaris, Racomitrium aciculare, Racomitrium canescens, Racomitrium fasciculare
Racomitrium microcarpon, Ranuncutus acris, Ranunculus glacialis, Ranunculus repens, Rhizomnium punctatum, Rhodiola rosea, Rhytidiadelphus triquetrus,
Sagina procumbens, Sagina subulata, Saxifraga hypnoides, Saxifraga rosacea, Sedum villosum, Selaginella selaginoides, Sibbaldia procumbens, Solorina
crocea, Sphagnum spp., Taraxacum officinalis coll.-, Thalictrum alpinum, Thuidium tamariscinum, Thymus praecox, Trichophorum cespitosum, Vaccinium
myrtillus, Verohica officinalis, Viola canina, Viola palustris, Viola riviniana.