V. LOWER LIMITS. 353 



Salix lanata, 4.20 cent. The same. Declivities and rocks. 

 Carex Vahlii, 4.20 cent. The same, at 800 yards by estimate. 

 Astragalus alpinus, 4.20 cent. Aberdeen, about 800 yards. 

 Carex vaginata, 4.20 cent. Grampians, 800 yards ; but uncertain. 

 Poa csesia, 4.20 cent. The same. At tiOO yards in Yorkshire ? 

 Carex rariflora, 4.20 cent. Grampians, at 800 yards. Low in Suthd. 

 Juiicus castaneus, 4.50 cent. Forfar, at 800 yards, or rather lower, 

 Veronica saxatilis, 4.50 cent. Forfar, down to 750 yards on rocks ? 

 Mulgediura (or Soiichus) alpinum, 4.60 cent. The same, or lower. 

 Veronica alpina, 4.70 cent. Grampians, at 700 yards iu swamps. 

 Alopecurus alpinus, 4.70 cent. The same. 

 Phleum alpinum, 4.80 cent. Aberdeen, at 680 yards. 

 Ox}tropis campestris, 4.80 cent. Forfar, at 700 yards, by rude estim. 

 Myosotis alpestris, 5 cent. North-west Yorkshire, "at 800 yards." 

 Saxifraga nivalis, 5 cent. Forfar, at 650 yards. Seldom so low. 

 Juncus trifidus, 5 cent. Sutherland, 550 yards. Grampians, at 650. 

 Juniperus nana, 5 cent. Cumberland, about 800 yards. 

 Pseudathyrium alpeslre, 5 cent. Grampians, down to 600 yards. 

 Sagina saxatilis, 5 cent. The same ; but lowest limit uncertain. 

 Hieracium alpinum (aut.), 5.10 cent. Nevis, at 620 yards. Perth, 680. 

 Salix herbacea, 5.10 cent. Nevis, at 620 yards. Orkney, about 500. 

 Cerastium alpinum, 5.20 cent. Aberdeen, about 600 yards. Spec. unc. 

 Azalea procumbens, 5.25 cent. Sutherland, at 500 yards. Shetland. 

 Carex rigida, 5.35 cent. Sutherland, at 480 yards. Shetland. 

 Sibbaldia procumbens, 5.45 cent. Grampians, at 550 yards. 

 Luzula spicata, 5.50 cent. Aberdeen, at 540 yards; usually 600 or 700. 

 Salix arbuscula, 5.70 cent. Grampians, about 500 yards ; but uncer. 

 Lychnis alpina, 5.70 cent. Cumberland, at "2000 feet." 

 Poa alpina, 5.75 cent. North-west Yorkshire, at 650 yards (Baker). 

 Betula nana, 5.80 cent. Grampians, below 500 yards. 

 Gnaphalium supinum, 5.90 cent. Easteruess, at 460 yards. 

 Carex lupestris, 6 cent. " Inchnadamf, Sutherland," at ... ? 

 Anlhericum serotinum, 6 cent. Carnarvon, say at 700 yards. 

 Arenaria uliginosa, 6 cent. North England, about " 600 yards." 

 Epilobium alpinum, 6 cent. Grampians, at 450 yards. 

 Saussurea alpina, 6 cent. Sutherland, at 350 yards. Shetland. 

 Elyna (Kobresia) caricina, 6 cent. Teesdale, at " 600 yards, or lower." 

 Polygala uliginosa, 6.25 cent. Yorkshire, at 550 yards (J. G. Baker). 

 Juncus Iriglumis, 6.40 cent. Perth, 360 yards. Aberdeen, at 400. 

 VOL. IV. 2 z 



