VI. LOCAL SPECIES. 445 



Peninsula 19 Channel 11 



Severn 6 Thames 14 



South Wales .... 2 Ouse 15 



North Wales .... 4 Trent 1 



Mersey 2 Humber 4 



Lakes Tyne 2 



West Lowlands East Lowlands 



West Highlands 1 East Highlands 27 



North Highlands 1 North Isles .... 2 



The 111 species presumed peculiar to single provinces on 

 present knowledge, are thus seen to be apportioned very 

 unequally among them. The provinces are here first 

 arranged into western and eastern, and are then enume- 

 merated from south to north. A glance suffices to see 

 that local plants are most numerous in the southern 

 provinces, as was shown above by the subprovincial com- 

 parisons. To this austral tendency of the local species 

 the East Highlands offer a decided exception, arising out 

 of the many alpine or arctic plants which have been 

 found hitherto only in that one large province. Eight of 

 those so reckoned up are segregate species of Hierachim. 

 And it is likely that some among the total 27 species 

 might be found also in the West or North Highlands. 

 Still, even if subject to some abatement in regard to the 

 precise figures, it is made very evident that the most 

 local species tend in three directions ; namel}', to the 

 south-east of England, to the south-west of England, 

 and to the Highlands or mountains. In other words, 

 the very local plants are australs and arctics, with some 

 very few others scattered elsewhere. 



But in taking those of single provinces as the most 

 local group of plants, some few equally local species are 

 excluded from consideration. A species found in two 



