2. NYMPHiEACE^. 101 



tute the ai-ea of local list or flora. Perhaps least frequent 

 in the provinces of Tyne and East Lowlands, and least re- 

 corded fi-om that of the West Highlands. NB. In the Phy- 

 tologist, first volume, page 525, Mr. Pamplin called at- 

 tention to a variety " minor," said to have been found be- 

 tween York and Doncaster, and between Lyndhurst and 

 Brockenhm-st, in Hampshire. In 1843, Mr. BoiTer sought 

 imsuccessfully for the variety in the latter locality. I have 

 obsened plants in Cheshu-e, Cumberland and the High- 

 lands, distinguishable by their smaller leaves and flowers. 



37. NUPHAR LUTEA, SiH. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16. 



South limit in Cornwall, Dorset, Kent. 



North Umit in Aberdeenshu-e and Islay. 



Estimate of pro\dnces 16. Estimate of coimties 60, 



Latitude 50 — 58. British type of distiibution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in Channel province. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperatai-e 52 — 47. 



Native. Lacustral. Distribution more limited than that 

 of the Npnphcea. The present may be more fi-equent in 

 England, but becomes so scarce in the Highland provinces, 

 as almost to justify its assignment to the English, or 

 southern, type of distribution. The Rev. G. Gordon sup- 

 poses it an introduced plant in Moray. Dr. Dickie reports 

 it as a native of Aberdeenshire ; and on faith of the few lo- 

 calities in tliis latter county, its northern limit is taken 

 above the line of 57°. Perhaps the range of mean tempe- 

 rature should be earned down to 46°. Ascends, so fai- as 

 known, baicly within the superagrai'ian zone ; while the 



