44. COMPOSITE. 109 



easily eradicated fi-om any damp and shady place in which 

 it has once got fiilly established. Mr. Babington says that 

 it-is " plentifiilly naturalized" on the cliffs below the town 

 of Tenby. Mr. Motley informed me that it is " perfectly 

 naturalized" in several fields near the fiimace toll-bar, 

 Llanelly, Caennarthenshire. Dr. Bromfield considers it 

 naturalized, but not seeding, in Hampshire. 1 have ob- 

 served it also established in Devon and Denbighshire. A 

 Tussilago of most authors, except the recent ones, who ap- 

 pear to be fast discarding the Linnean principle that the 

 genus should give the character, not a character make a 

 genus. 



637. Tussilago Farfara, Linn. 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Caithness. 



Estimate of provinces 18. Estimate of counties 82. 



Latitude 50 — 61. British type of distribution. 



A. A. regions. Inferagrarian — Midarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 850 yards, in East Highlands. 



Range of mean annual temperature 52 — 38. 



Native. luundatal, Agrestal, &c. Veiy general in Bri- 

 tain, extending northward into Fai-oe and throughout Scan- 

 dinavia, — a distribution which gives additional probability 

 to the suggestion thrown out under Petasites vulgaris, to 

 the effect that the present species is not really absent from 

 the Hebrides, but was there mistaken for Petasites vulgaris. 

 In conformity with this idea, we find Barry recording only 

 the Petasites, while Neill mentions only the Farfara, in 

 Orkney. 



