i( 



23. LEGUMINOS^. 325 



Range of mean annual temperature 52 — 43. 



Native. Pratal and Septal. The only species of its 

 genus which can be considered frequent in Britain ; and 

 one of the few plants which have the designation of 

 common" through the whole length of the island, even 

 into Shetland. 



W///. ^ ■ -^/"J. 309. Lathyeus palustris, Linn. 



Area 1 [2 3] 4 * * 7 8 [9] 10 * * [13]. 



South limit in Somerset (Hants,and Surrey^K 



North limit in Yorkshire, Caernarvonshire (or Lancashire?) 



Estimate of provinces 6. Estimate of counties 12. 



Latitude 51 — 54. Local or English type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 50 or 100 yards, in England. 



Range of mean annual temperature 50 — 48. 



Native. Paludal. The published localities for this spe- 

 cies are to be received with distrust ; as there can scarcely 

 remain a doubt that some other plant has been occasionally 

 mistaken for the present. In other instances, it may have 

 been extirpated from recorded localities, through drainage 

 or other farming operations. I have seen specimens from 

 Suffolk (Mr. Woodward), Caernarvonshire (Dr. Howitt) 

 and Yorkshire (Mr. Tatham). In two other provinces, 

 those of the Peninsula (Rev. J. C. Collins) and Trent (Sir 

 Joseph Banks), the authority appears sufficient. But there 

 are still four provinces reported, which I hesitate to adopt 

 until confirmed by additional observers. Mr. Notcutt re- 

 cords it as found at Botany Bay, near Southampton ; the 

 only authority for the Channel province which I find 

 among my notes. Old authorities have indicated some of 



