53. SCROPHULARIACEiE. 213 



Ascends to 150 yards, in province of Humber. 



Range of mean annual temperature 50 — 47. 



Native. Sylvestral, Paludal. Until very recently, this 

 has been confused with S. aquatica, although it really ap- 

 pears to be much more akin to S. nodosa. Habitats are 

 reported in Sussex, Middlesex, Lancaster, York, Berwick, 

 and Edinburgh or Linlithgow ; probably in both the two 

 latter counties, as it is said to grow by a stream which 

 forms their dividing or boundary line. I presume that it 

 will be found in various others, in addition to these half- 

 dozen distantly scattered counties. It is the S. aquatica 

 of many Continental authors, but not of the Linnean 

 herbarium. 



775. ScROPHULARiA Balbisii, Homem. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 [15 * * 18]. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Renfrew? Berwick ? [Edinburgh? Fife?] 



Estimate of provinces 14. Estimate of counties 50. 



Latitude 50 — 56. English type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 47. 



Native. Paludal, Septal. All the Scottish counties on 

 record for S. aquatica must be considered doubtful, that 

 is, until specially verified by botanists who have clearly 

 learned the differences between S. Balbisii and S. Ehrharti, 

 both of which have passed under the name of S. aquatica. 

 The most northerly county from which I have seen a spe- 

 cimen of S. Balbisii, is that of Northumberland, whence it 

 was sent to me by Mr. John Storey, to whose exertions 

 my herbarium has been very largely indebted. 



