xxu 



INTRODUCTION. 



Most of these occur in the west and north. ' The small munbet 

 of alpine plants found in Dublin and Wicklow is especially worth 

 notice, as contrasted with the rich flora of the mountains of North 

 Wales. Some of the species, as Draba incana, Dryas octopetala, 

 Galium boreale, Arbutus Uva-ursi, Sesleria coerulea, Lycopodium 

 selaginoides, and Isoetes kcustris, occur in many places at or a 

 little above aea-lerel, so that they cannot strictly be termed high- 

 land species in Ireland. It is probably in consequence of the 

 vaporous, atmosphere, and the less amount of sun-light, that these 

 plants are foimd at a lower level here than in Scotland. 



The northern plants, nataely, those belonging to Watson's 

 Scottish and Intermediate Types, are more numerous, amounting 

 to 66 out of 117:— 



Thalictrum minus, 

 Thalictrum flexuosum, 

 ■ Trollius europseus (N.), 

 Subularia aquatica, 

 Helianthemum canum (W.), 

 Viola lutea, 

 Drosera anglica, 

 Sagina subulata, 

 Alsine verna, 



Greranium sylvaticum (N.), 

 Vicia Orobus, 

 Prunus Padus, 

 Potentilla fruticosa (W.), 

 Brubus saxatilis, 

 £ubus suberectus, 

 Sanguisorba oflScinalis, 

 Circsea alpiua, 

 Callitriche autumnalis, 

 Saxifraga Hirculus, 

 Saxifraga hypnoides, 

 Pamassia palustris, 

 Ligusticum scoticum (N.), 

 ?MyiThis odorata (if wild), 

 Galium sylvestre, 



Gentiana verna (W.), 

 Melampyrum sylvaticum (N.), 

 Orobanche rubra, 

 Ajuga pyramidalis (W.), 

 Lamium intermedixun (N.), 

 Galeopsis versicolor, 

 Mertensia maritima, 

 Pinguicula vidgaris, 

 Empetrum nigrum, 

 Salix pentandra, 

 Salix nigricans (N.), 

 Salix phylicifolia (N.), 

 Salix ambigua (N.), 

 Salix laurina (N.), 

 ?Pinus sylvestris, 

 Listera cordata, 

 Habenaria albida, 

 Allium Scorodoprasum (S.), 

 Potamogeton prselongus, 

 Eriocaulon septangiilare, 

 Blysmus rufus, 

 Eleocharis uniglumis, 

 Carex dioica, 

 Carex limosa, 



