2^2 baker's north YORKSHIRE. 



about the borders of the adjoining fields ; Wheldon ! Oldstead 

 bank, abundant ; W. Foggitt. The species occurs, but only in 

 a sub-spontaneous condition, in a few other places ; Camphill, 

 Tanfield, Great Ayton, Rosedale Abbey. 



Aquilegia vulgaris L. English type. Native. Xerophilous. 

 Area 876.3. Range 50-350. Like Helleborus viridis and 

 Actcea, a characteristic example of the Xerophilous category. 

 For an account of its stations see page 65. 



Aconitum Napellus L. Alien. Sub-spontaneous by 

 stream-sides in a few places, but clearly a garden escape. By 

 the Tees at Yarm, the Leven at Ayton, the Swale at Richmond, 

 the Wharfe at Thorp Arch. Possibly indigenous in the south- 

 west of England ; clearly so in Denmark, Germany and France. 

 Cultivated in gardens up to 300 yards. 



Pseonia corallina Retz. Alien. In Cleveland sub-spon- 

 taneous or planted in Kildale Woods ; W. Mudd ! Cultivated 

 in gardens up to 350 yards. 



Delphinium Ajacis L. Alien. Casually sub-spontaneous 

 in cultivated fields. Thirsk, Langbargh, Picton, Crathorn, etc. 



Actsea spicata L. Intermediate type. Native. Xerophilous. 

 Area 876.3. Range 50-350. In the Yore district in Whit- 

 field Gill, on both sides of the stream near the waterfall, and about 

 a lime-kiln near the river at High Mains, near Masham. About 

 the Magnesian Limestone at Thornton Watlass and Thorp Arch. 

 In the woods of the slopes of the eastern calcareous range in 

 numerous stations : Yowlasdale, Cold Kirkby, Rievaulx, Beck- 

 dale, Yedmandale, Forge Valley, and in the Howardian tract at 

 Nunnington, Hovingham, Hildenley, and in Cawklees Wood. 

 In its North Yorkshire distribution almost precisely the same as 

 Aquilegia, and with the same vertical range. Beyond the limits 

 of Yorkshire it is in Britain found only in the Lake district. 

 It is distributed throughout Scandinavia, and southward through 

 Denmark, Belgium and France, to the Pyrenees. 



Nymphaea alba L. British type. Native. Area 5.3.1. 

 Range o-ioo. Ponds and streams in the vales, rare. In the 



