55. LAMIACEiE. 257 



English. At present, I regard L. intermedium as a form of 

 L. amplexicaule. 



831. Lamium purpureum, 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. 



Agrarian region. Inferagi'aiian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 350 yards, in East Highlands. 



Range of mean annual temperature 52 — 43. 



Native. Viatical, Agrestal. A very common weed, which 

 flowers through the winter season, unless at times when 

 there is continued frost. The only species of its genus 

 which occurs in Fai'oe ; but it fails to reach Lapland. 



831, b. Lamium iNCisuM, Willd. 



Area general ? 



South limit in Cornwall, Isle of Wight, Kent. 

 North limit in Shetland, Hebrides. 

 Estimate of provinces 18. Estimate of counties 75. 

 Latitude 50 — 61. British type of distribution. 

 Agrarian region. Inferagrarian — Superagrarian zones. 

 Descends to the coast level, in the Peninsula. 

 Ascends to 100 or 200 yards, in England. 

 Range of mean annual temperature 52 — 45. 

 Native. Viatical, Agrestal. Probably a variety of L. 

 purpureum. The latter varies greatly in the form and 



VOL. II. s 



