110 3. FUMARIACEyE. 



North limit iii Ross-shire and Argyleshrre. 



Estimate of provinces 17. Estimate of counties 50. 



Latitude 50 — 58. British type of distribution. 



Agi-arian region. Inferagrarian — Superagi-aiian zones. 



Descends to the coast level, in the Channel. 



Ascends to 400 yards, on Dartmoor, in the Peninsula. 



Range of mean annual temperature 50 — 46. 



Native. Rupestral or Sylvestral. Though widely dis- 

 tributed through Britain, this is far from being a common 

 plant ; and apparently it becomes very scarce in the West 

 and North Highlands, and is not reported from any of the 

 North Isles. Its situations of growth vary ; being found in 

 thick woods, more open coppices, in- stony places, on 

 thatched roofs, and on trees ; but, for the most part, it is a 

 plant of damp and loose soil, and shady places. 



49. CORYDALIS LDTEA, Lindl. 



Ai-ea (123456^89 10 11**^ 15). 



Alien. Occasionally found on ruins, old walls, banks neai- 

 gardens, and such like situations ; apparently having for- 

 merly been a more favourite ornamental plant, than is the 

 case at the present time. 



CORYDALIS SOLIDA, Sm. 



Area (* * * * 5 * * .* 9 ^ * 12). 



Alien. Much less established than the preceding spe- 

 cies ; but has been admitted into Enghsh hsts, by botanists 

 who were more solicitous to pubhsh novelties, than to pro- 

 mulgate tmth ; and once admitted into books, no one likes 

 to take the lead in discarding it agam. 



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