NORTHUMBERLAND AND DtrBHAM. 229 



4. M. sylvatica, Ehrh. Native. English type. Area C, N, D. 



Eange 1, 2. 



Frequent in the woods of the hilly tracts, ascending in Che- 

 viot-land to Eoddam Dene, in Teesdale to High Force Wood, 

 350 yai'ds. 



5. M. arvensis, Hoffm. Native. British type. Area C, N, D. 



Range 1, 2. 



Common upon hedge-banks and in cultivated ground, ascend- 

 ing in Teesdale to Falcon Glints, 500 yards. 



6. If. collina, Hoffm. Native. British type. Area C, N, D. 



Range 1. 



Not unfrequent on dry sandy banks, especially near the coast. 



7. If. versicolor, luohxa.. Native. British type. Area C, N, D. 



Range 1, 2. 



In similar situations to the preceding but more common, as- 

 cending in Coquetdale above Alwinton, to 500 yards in Harwood 

 Dale and East Allendale. 



2. LITHOSPERMUM, L. 



1. L. officinale, L. Native. Xerophilous. British type. 



Ai'ea D. Range 1. 



Subspontaneous near Hulne Abbey, Alnwick (T.). Wild on 

 the Magnesian Limestone at Hylton Dene, and in Hawthorn 

 Dene and Castle Eden Dene (F. R !). 



2. L. arvense, L. Colonist. British type. Area C, N, D. 



Range 1. 



A frequent weed in cultivated fields, ascending in Coquetdale 

 to Holystone, to 200 yards in Teesdale. 



3. MERTEXSIA, Roth. 



1. If. maritima, Don. Native. Maritime. Scottish type. 

 Area C. Range 1. 



Recorded in the Dillenian edition of Ray's Synopsis from the 



