PYRUS — EPILOBiUM. 29^ 



Teesdale upon Holwick Scars, and in Swaledale upon the Red 

 Scars near Downholme. It grows in the bed of the Tees at 

 Winch Bridge, but, I believe, only upon the Durham side of 

 the river, and in plantations is not uncommon. Our plant is 

 P. riipicola Syme, not typical Aria. 



Pyrus torminalis L. Alien. Recorded by C. C. Babington 

 from Robin Hood's Bay, but not at all likely to be really wild there. 



Pyrus Aucuparia Gaertn. British type. Native. Area 

 general. Range 0-600. Not common in the low country, or 

 in hedge-rows and plantations, but one of the most frequent 

 indigenous trees amongst the arenaceous hills, where it is often 

 associated with the Birch. The highest stations in which I 

 have seen it are upon the banks of a stream upon the plateau 

 of Holwick Fell, and on the spur of Cronkley Fell west of the 

 White Force. No other tree ascends higher with us than this, 

 and only the Juniper as high. For North Yorkshire we may say 

 that the presence of trees, either aboriginal or planted, marks 

 the Agrarian Region ; the presence of fruticose Rubi, Vilmrnum 

 Opidus, Cornus sangiiinea, and Acer canipestre the Lower Zone. 



Epilobium angustifolium L. British type. Native. 

 Montane. Area 98765.3.1. Range 0-600. In Teesdale 

 upon the scars of Cronkley and Holwick, and by the stream- 

 side at Blea Beck and the High Force, and about the lower 

 part of the Balder and the Greta. Abundant on the open moor 

 near the source of the Greta ; W. Foggitt. Plentiful in the West 

 Swale district in AVniitsundale, and occurring also in Punchard's 

 Gill and several places lower down the river as fai as Richmond. 

 In the Yore district at the head of Gammersgill and about the 

 upper falls of Cotterdale, and in Mossdale, and ascends to 600 

 yards at the head of Gayledale and in the swallow holes of 

 Ten End ; /. Fercival. By the Wharfe near Thorp Arch, and 

 in the Central Valley on Stockton Common and in Friarage 

 Woods nearYarni. Among.st the eastern hills in several places; 

 Kildale, Bilsdale, Flazendale, Scarborough, Kilton Castle Woods, 

 and in the Howardian tract. 



Sept. 1889. 



