CLIMATOLOGY. 1 03 



200 Yards. — Reseda luteola, Malva rotundifolia, Epilohhnn 

 hirsntu??i, Berberis vulgaris, Eupatoriuvi cannabiiium, Pulicaria 

 dysenterica, Erythi'CBa Centatirium, Solatium Dulcamara, Myosotis 

 palustrts, Lhiaria vulgaris, Salix fragilis, Lastrea spinulosa. 



300 Yards. — Barbarea vulgaris, Cardamine a?nara, Silene 

 inflaia, Arenaria trinervis, Geranium dissectujii, Acer campestre, 

 Trifolium procwnbens, Rubusfruiicosiis, Cormts sanguinea, Rumex 

 conglomeratus, Glechoma hederacea. 



400 Yards. — Cerastium glomeratum, Hypericum quadi-an- 

 gulum, Ulex europceus, Lotus major, Agrimonia Eupatoria, 

 Hieracium boreale, Scrophularia nodosa, Stachys sylvatica. Poly- 

 gonum aviculare, Quercus Robur, Carex Jiirta, Equisetum 

 Tebnateia. 



500 Yards. — Orobus tuberosus, Prunus spinosa, Craicegus 

 Oxyacantha, Rosa spinosissima, R. villosa, Parnassia palustris, 

 Lonicera Periclymenum, Hedera Helix, Fraxinus excelsior, Mer- 

 curialis pereimis, Ulmus montana, Lolium perenne. 



600 Yards.— 6a^'/«(2 nodosa, Anthyllis Vulneraria, Pyrus 

 Aucuparia, Apargia hispida, Tussilago Farfara, Valeriana 

 officinalis, Veronica Beccabunga, Prifnttla vulgaris^ Beiula alba, 

 Populus trcmula, Corylus Avellana, Junipeitis conwninis, Pteris 

 aquilina. 



Critical plants and doubtful natives again excluded, thirty-five 

 of the Ascending species have in Britain their north limit in 

 North Yorkshire. Four of these are confined to the coast, 

 Afedicago denticulata, Vicia bitliynica, Hippophae rhanuioidcs and 

 Salicornia radicans. Six are confined to the central vale and 

 do not pass north of the neighbourhood of York, Viscum album, 

 Carex paradoxa, Veronica triphyllos, Alopecurus bulbosus and 

 Carduus pratensis. Five more are confined to the valleys and 

 do not pass north of the neighbourhood of Thirsk, Carex pseudo- 

 cyperus, Rumex palustris, R. maritimus, Potainogeton flabellatus 

 and Polygonum mite. Four more are confined to the valleys but 

 pass north of Thiisk, Teucrium Scordium, Nasturtium amphibium, 

 Cerastium aquaticum and Eriophorum gracile. Two species, 



July 1888. 



