25. ONAGRACEiE. 373 



Latitude 50 — 61. British type of distribution. 



A. A. regions. Inferagrarian — Inferarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 650 yards, in the East Highlands. 



Range of mean annual temperature 51 — 40. 



Native. Paludal. Not a very common species ; al- 

 though so frequent that it may be difficult to select any 

 counties fi-om which this plant is likely to be quite absent. 

 Rare above the agrarian region. 



373. Epilobium tetkagonum, Linn. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 * 18. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Orkney, Hebrides, Moray. 



Estimate of provinces 18. Estimate of counties 80. 



Latitude 50 — 60. British type of distribution. 



A. A. regions. Inferagrarian — Inferarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 700 yards, in the East Highlands. 



Range of mean annual temperature 51 — 40. 



Native. Paludal and Septal. Unknown in Shetland, 

 and unrecorded from the North Highlands, though likely 

 enough to be found in that province. Assumes so much 

 of the general habit of E. alsinifolium, by the sides of 

 streamlets on the mountains, as to be scarce distinguish- 

 able from that species. E. virgatum is given for a variety 

 of the present, in the London Catalogue ; but, perhaps, it 

 is referrible rather to E. palustre, or, like many other 

 book-species, is made up from the intermediately aberrant 

 forms of both. 



