40 84, JUNCACE-E. 



1152*. JuNcus DiFFUsus, Hojjpe. 



Area * 2 3 4 5 * * 8 * 10 11 * * * 15. 



Soutli limit in Isle of AViglit, Sussex. 



North limit in Kincardine ? — or, Northumberland. 



Estimate of provinces 10. Estimate of counties 30. 



Latitude 50 — 57. English tj^pe of distribution. 



Agrarian region. Inferagrarian — ]\Iidagrarian zones. 



Descends to the coast level, in Channel province. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 50 — 47. 



Native. Paludal, Inundatal, &c. After having been 

 first announced as British, on the faith of specimens said 

 to have been sent from Kincardineshire, to Mr Sender of 

 Hamburgh, various other localities were soon ascertained 

 and announced for this sj)ecies in English coimties ; but 

 I am not aware that it has hitherto been verified in Kin- 

 cardine, or found in any other county of Scotland. It 

 has been reported from the Isle of "Wight and mainland 

 Hants (Dr. Bromfield), Sussex (Mr. Borrer), Surrey (H. C. 

 Watson, &c.), Herts (Rev. W. H. Coleman !), Essex (Mr. G. 

 S. Gibson), Norfolk (Mr. James Backhouse, — but said by 

 Mr. Notcutt to be an error), Huntingdon (H. C. Watson), 

 Warwick (Rev. A. Bloxam), Hereford (Mr. W. H. Purchas), 

 Leicester (Rev. A. Bloxam), Lincoln (Rev. R. H. Webb !), 

 York (Mr. G. S. Gibson !), Northumberland (Mr. D. Oli- 

 ver !), and Kincardine (as above). I have examined nu- 

 merous wild plants of J. diffusus, and cultivated it two 

 years in my garden, without being able to find any seeds 

 that appeared full grown and perfect. My impression is, 

 that J. diflfusus is a sterile variety of J. effusus, and that 

 it has no affinity to J. glaucus, either as hybrid or variety 



