250 A NEW FLOEA OP 



near tlie head of the Knueton Burn, in Weardale plentiful in the 

 upper part, but in Teesdale much less abundant than phylicifoKa. 

 Castle Eden Dene. We include here a wide range of forms, 

 amongst which are rupestris, hirta, and Andersoniana of English 

 Botany. 



13. S. laurina, Sm. Native. Scottish type. Area C, N, D. 



Range 1, 2. • 



Eothley Lake and hedges north of Cambo (E !). In the upper 

 part of the dale of the Derwent on the banks of the Knueton and 

 Beldon Burns (E !). Grathered on the banks of the former by 

 Mr. Baker in 1865, at an elevation of 1400 feet. 8. tenuifolia is 

 recorded by Dr. Johnston from Learmouth Bog. 



14. >S'. phylicifolia, L. Native. Scottish type. Area C, N, 



D. Range 1, 2. 



Not noticed in the Cheviot tract, but most likely overlooked. 

 By the Tyne in several places. By the Irthing at Wardrew, and 

 abundant in the upper part of Allendale, Derwentdale, Weardale, 

 and especially of Teesdale, ascending to 400 yards in Irishope, 

 500 yards near AUenheads, and 550 on the limestone scars in 

 Harwood Dale, with aurita. The common forms with us are 

 Weigeliana, nitens, and Croweana, and a plant from Prestwick 

 Carr is called radicans by Smith in Winch's collection. 



15. >S'. repens, L. Native. British type. Area C, N, D. 



Eange 1, 2. 



Common on heaths, ascending to 450 yards in Teesdale and 

 Derwentdale, 500 yards in Harwood Dale. 



16. 8. amligua, Ehrh. Native. British type. Area N. 



Eange 1. 



On the edge of Dilston Eell by the side of the high-road be- 

 tween Dilston and Hexham, 150 yards, growing in small quantity 

 amongst 8. aurita and repens, between which it is probably a 

 hybrid (B.). 



