290 23. LEGUMINOS^. 



provender for horses ; and it might be scattered along the 

 lines of railways, in the same manner. The very nnrae- 

 rous seeds (thousands) which a single plant will produce, 

 when growing freely on fresh-moved and comparatively 

 cleared ground, may well account for the abundance of 

 the plant, after a first crop, though only of a few or single 

 plants, has shed its seeds. On the whole, it seems better 

 to regard this species in the character of an alien, unless 

 more satisfactory localities be ascertained. It is likely 

 enough to establish itself on our coasts, and thus become a 

 denizen : its biennial existence being an obstacle against 

 its becoming an agrestal colonist, like other plants which 

 have been imported with corn or other seeds. 



266.(Trifoliu]\i/ornithopodioides, Limx. '-« ^^- ^'.^4 



Area 1 2 3 4 5 * 7 -*4 [10] * * 13 14 15. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Ayrshire, Fifeshire, (Forfarshire ?) 



Estimate of provinces 10. Estimate of counties 20. 



Latitude 50 — 57. 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 52 — 48. 



Native. Glareal and Sub-littoral. Chiefly near the 

 coast, though several inland localities are also recorded. 

 Some of the latter are probably erroneous, and among the 

 probable errors it seems advisable to put the Tadcaster 

 locality, where Willisel supposed that he found this spe- 

 cies among corn, which is an unlikely situation for it. In 

 Baines's Flora of Yorkshire the locality is cited without 

 comment, although the only one given for the species ; 



