386 30. PORTULACE^. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 51 — 48. 



Native. Sejital. Found in most of the English coun- 

 ties, although by no means a common plant. In Wales 

 apparently much more rare ; and as it may be wholly ab- 

 sent from some of the most northerly counties of England, 

 the estimate of 40 may be rather over truth, although that 

 of 30 would certainly be too low. Two Northumbrian lo- 

 calities are recorded for the Bryonia, in the Flora of North- 

 umberland and Durham ; but Mr. Chrisp informs me that 

 the plant has probably been introduced thereto for orna- 

 mental purposes. 



394. MoNTiA FONTANA, Linn 



Area, general. 



South limit in Cornwall, Isle of Wight, Kent. 

 jXyfe^/. North limit in Orkney, Sutherland, Hebrides. 



Estimate of provinces 18. Estimate of counties 82. 



Latitude 50 — 60. British type of distribution. 



A. A. regions. Inferagrarian — Superarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 1050 or 1100 yards, in the East Highlands. 



Range of mean annual temperature 52 — 36. 



Native. Lacustral, Inundatal, &c. Although not re- 

 corded in the Flora of Shetland, there seems so much pro- 

 bability of this easily overlooked species growing there, 

 that the county estimate is made to include that group of 

 isles. The range of latitude, as well as the northern 

 limits assigned, however, are stated exclusively of Shet- 

 land ; because these are given in correspondence with the 

 state of ascertained knowledge and not set down from esti- 

 mate or conjecture. In the damp periods of the year, the 



