102 2. NYMPHiEACE^. 



Nyinphaea almost crosses that zone. NB. There is a 

 variety 'minor' of this Water-lily also ; for some notes upon 

 which, see the next species. 



38. NUPHAR PUMILA, De C. 



» 



Area [^^ 2 ^ * * ^ * ^f. * * 11 * 13 ^is] 15 16. 



South limit in Perthshire and Aberdeenshire. 



North limit in Moray and Argyleshire. 



Estimate of pro^-inces 2. Estimate of counties 4. 



Latitude 56 — 58. Highland or Local type of distribution. 



Agrarian region. Superagraiiari (?) zone. 



Descends to ? 



Ascends to ? 



Range of mean annual temperature, say 45 — 44. 



Native. Lacustral. Apparently limited to four coun- 

 ties of the East and West Highlands ; namely, Perth, 

 Aberdeen (Dr. Dickie), Moray or East Inverness, and 

 Ai'gyle shu'es. Besides these two Higliland provinces, the 

 Nuphar pumila has been reported to grow in three others. 

 There can be no hesitation about rejecting the alleged lo- 

 cality of " a pond at Purbeck," in Dorsetshire. For many 

 years past, the locality of " Chaitner's Lough," in Northiun- 

 berland, has been adopted on the faith of Mr. Winch ; 

 who, however, had intimated that the plant from that loca- 

 lity, after removal into the gardens at Wallington, scai-cely 

 differed from the common species, N. lutea. A specimen 

 in my herbarium, fi-om Sir W. C. Trevelyan, appeared to 

 confinn this transfonnation ; but Mr. Bon-er has lately ex- 

 plained that the Northiunberland plant is not the N. pu- 

 mila, but rather a small variety of N. lutea. I know not 

 whether the specimen, in my herbariiun, came fi-om Chart- 

 ner's Lough or the Wallington gardens. In size of flower 



