308 A NEW FLORA OF 



includes Dorset, Wilts, Hants, and Sussex, 5464 square miles, 

 yields one thousand and forty species. Next to these comes the 

 Humber province, which is conterminous with Yorkshire, has an 

 area of 5836 square miles, and yields one thousand and fifteen 

 species. This number is higher than that of the Midland pro- 

 vinces, because, although in the latter the number of southern 

 species is greater than in Yorkshire, the number of northern ones 

 is very much fewer. As compared with Yorkshire, the Tyne 

 province has only about half its area and eighty fewer plants. 

 In northern species they are nearly upon an equality, the differ- 

 ence between the two being almost altogether caused by the ab- 

 sence beyond the Tees of southern plants which run out in 

 Yorkshire. For the northern half of Wales we know nine hun- 

 dred and thirty-eight species, for the Mersey province, which 

 includes Cheshire and Lancashire, eight hundred and forty-two, 

 for the two Lake counties and Isle of Man eight hundred and 

 sixty, but for none of these three have Floras been written, and 

 we cannot consider their lists complete, whilst for our own pro- 

 vince we cannot expect any material increase. 



5. — We have seen in Yorkshire how rapidly the southern 

 types thin out. Through our two counties this continues in a 

 marked manner, and the following seventy-seven species which 

 we have admitted fail to reach Scotland. 



Twenty-eight reach Cheviot-land, viz : — 



Humulus lupulns. 

 Allium schainoprasum. 

 Glyceria proctimbens. 

 Arundo calamagrostis. 

 Convallaria polygouatnm. 

 Masnchia erecta. 

 Euphorbia amygdaloicles. 

 Popialus alba. 

 Ulmi;s campestris. 

 Juneus diffusus. 

 Ribes grossvilaria. 



nigrum. 

 Verbena officinalis. 

 Agrimonia odorata. 



Orchis morio. 

 Atropa belladonna. 

 Helminthia echioides. 

 Solaniim nigrum. 

 Chenopodium urbicum. 

 Galium tricorne. 

 Hippohae rbamnoides. 

 Lepidium latifolium. 

 Rubus discolor. 



diver sifolius. 

 Rosa rubiginosa. 

 Orobanche minor. 

 Rosa systyla. 

 "Narcissus pseudo-narcissus. 



