XOKTHTJMBERLA.XD AND DURHAM. 211 



Obder 12. GENTIANACE^. 



1. GENTIANA, L. 



1. G. verna, L. Native. Xerophilous. Intermediate type. 



Area D. Range 2. 



In Teesdale plentiful on Fendrith Hill and Widdy Bank Fell, 

 and carried down the streams into tlie dale. Range of altitude 

 350-550 yards. 



2. G. mnarella, L. Native. Xerophilous. British type. 



Area C, IST, D. Range 1, 2. 



Frequent on the coast links and limestone hills, ascending to 

 the Sugar Limestone of "Widdy Bank, 500 yards. 



3. G. eampestris, L. Native. British type. Area C, N, D. 



Range 1, 2. 



Frequent in dry pastures, ascending from the coast links to 

 500 yards in Langdon Dale. 



2. ERYTHRJIA, Renealm. 



1. E. centaurium, Pers. Native. British type. Area C, N, 



D. Range 1. 

 Frequent in dry pastures and sandy ground. The Northum- 

 brian plants referred to pulchella and latifoUa both seem to be 

 only forms of this. 



2. E. littoralis, Hook. Native. Maritime. British type. 



Area C. Range 1. 



On the coast links at Ross, Holy Island, and Bambro'. 



3. CHLORA, L. 



1. C. perfoUatafJj. Incognit. 



Reported by Wallis from ' ' dry pastures a quarter of a mile 

 west of Honeycleugh Crag near Chesterwood and "Whinetly in 

 South Tynedale." 



