44. COMPOSITE. 133 



feel the evidence quite insufficient for admitting, as really 

 British, anything nearer to the species above named than a 

 yellowish-flowered variety of A. Ptarmica. The specimens 

 referred to above were probably of garden origin, and had 

 been mingled with English plants by some inadvertence. 

 Mr. Flower has himself explained (Bot. Gaz.) that the 

 Somerset locality cannot be again found or relied upon. I 

 have seen the Achillea Ptarmica with a decidedly yellow 

 tinge to the flowers, though the tint fades away in desicca- 

 tion. Mr. Saunders, writing of Oxfordshire botany, says, 

 that A. Ptarmica " grows to a very large size, and with a 

 yellowish tinge in the flowers, in the meadows by' the side 

 of the Cherwell." (Mag. Nat. Hist., new series, iii. 239.) 



672. Achillea Millefolium, Linn. 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hebrides. 



Estimate of provinces 18. Estimate of counties 82. 



Latitude 50 — 61. British type of distribution. 



A. A. regions. Inferagrarian — Superarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 1300 yards, in East Highlands, 



Range of mean annual temperature 52 — 34. 



Native. Pascual, Glareal. Among the most common 

 and most general of British plants ; ascending even to the 

 summit of Ben Lawers. 



C /^ ^/^. / . ^^i 673. Achillea tomentosa, Linn. 



Area ^^ ^ ^^ ^it j^ ^ ^ * ^^ ^i; * * 13 j^ 15 16. 

 South limit in Renfrew and Dumbarton. 



