17G 86. GRAMINA. 



locality having been in eastern Scotland, in connexion 

 with a tliird locality for possibly the same species in the 

 north of Ireland, shows the boreal tendency of the species 

 to be greater than its tendency towards the south, or 

 specially to east or west. 



1299. Sesleeia c^rulea, Scop. 



Area * * * * [.5] * * * * 10 11 12 * * 15 ^^ 17. 



S. limit in York, Durham, Westmoreland, Cumberland. 



North limit in Eoss, Perth, Stirling, Northumberland. 



Estimate of provinces 5. Estimate of counties 8. 



Latitude 54 — 58. Highland t}'pe of distribution. 



A. A. regions. Superagi-arian — Midarctic zones. 



Descends to 300 yards, or lower, in Humber. 



Ascends to 850 or 900 yards, in East Highlands. 



Range of mean annual temperature 45 — 38. 



Native. Eupestral, &c. The eight counties above 

 named are all of those in which stations have been re- 

 corded on reliable authority. The specific name of ' cseru- 

 lea ' has led to error in some few instances, through the 

 substitution of the generic name ' Sesleria ' instead of 

 * Melica ' or ' Molinia '. Whether any similar inadvertence 

 has led to the enumeration of Sesleria cserulea among the 

 plants of Shropshire, or whether it was a mistake about 

 the plant itself, I am unprej)ared to say ; but Sesleria 

 cserulea is entered in the Flora of Shi-opsloire, on the bad 

 authority of Mr. Spare, without any doubt being expressed 

 by the Author of the Flora, — authority designated bad, 

 because the only authority for several suspicious species 

 or stations published in that Flora ; and when we find the 

 same name repeatedly cited, as the only authority for 

 species unlikely to be found in the places indicated, dis- 



