KORTHTJMBEELAND AND DURHAM. 165 



13. CRATCEGUS, L. 



1. C. oxyacantha, L. Illative. British type. Area C, IS", D. 

 Kange 1, 2. 



Everywhere common in hedges and thickets. Not seen above 

 350 yards amongst the Cheviots, but ascending to 550 yards in 

 East and West Allendale, and nearly as high in Harwood Dale. 

 The only variety truly wild in the province is monogyna, Jacq. 



14. PYRUS, L. 



1. P. communis, L. Alien. 



To be seen sometimes in hedge-rows, as between Scots' Grap 

 Station and Hartburn, but with no claim to be considered truly 

 wild. 



2. P. malus, L. Native. English type. Area C, N", D. 



Eange 1, 2. 

 Common in hedge-rows and thickets, ascending both in Tees- 

 dale and the Wear district to 1100 feet. 



3. P. aria, Sm. Native. Xerophilous. English type. 



Area D. Range 1. 



Truly wild in the bed of the Tees at Winch Bridge, 300 yards, 

 in small quantity (var. rupicola, Syme), and reported also from 

 Castle Eden Dene. The typical form is to be seen occasionally 

 in hedge-rows and plantations. 



4. P. aucuparia, Gaertn. Native. British type. Area C, 



N, D. Eange 1, 2. 



Frequent in woods, ascending to 500 yards in the Cheviot 

 ravines, 550 yards on the limestone scars of Harwood Dale. 



Order 5. ONAGRACE^. 



1. EPILOBIUM, L. 



1. E. angustifoUmn, L. Native. British type. Area C, N, 

 D. Range 1, 2. 

 Banks of nearly all the hill streams. On the Cheviot near 



