122 THE DISTRIBUTION OF LIVING PLANTS. 



glycyphyllus), a species more commonly found in the eastern 

 parts of England, and distributing itself over the greater part of 

 Europe, and into the far east of Russian Asia ; Common Sainfoin 

 (Onobrychis saliva), Salad Burnet (Poierium Sanguisorba\ Wild 

 Carrot (Daucus Carofa], some species of Bedstraw, such as the 

 Slender Bedstraw (Galium sylvestre), and the Marsh Bedstraw 

 (Galium palusire), the Glabrous Oatgrass (Avena pratensis\ and 

 the Field Fleawort (Senea'o campestris), which grows very luxuri- 

 antly on Ashmoor Down. 



In close local contact with the chalk comes the other member 

 of the cretaceous group, known as the Wealden Beds, which 

 causes the deep indentation of Swanage Bay, and extends thence 

 westwards to Lulworth. ' These beds are not without some 

 interesting plants, such as the Saw-wort, which may be found 

 in plenty near Corfe Castle. 



Passing now to the east and south-east of the county, we find 

 the district of Tertiary formation represented chiefly by the 

 Eocenes, and forming high heath-lands and long low stretches 

 of bogland the latter area being the most productive of plant 

 life. Here the Bog-Asphodel (Narthecium ossifraguni) charms 

 the solitudes with its slender stem of bright yellow flowerets, and 

 the air is scented with wild Thyme (Thymui Serpylluni) and Bog 

 Myrtle {Myrica Gale], The Lesser Sundew (Drosera intermedia'] 

 grows here in turfy bogs and shallow water, and the Common 

 Butterwort (Pinguicula vulgaris}, another insectivorous plant, 

 though somewhat rare, may be found near Poole and in Purbeck. 

 The Bog- Pimpernel (Anagallis tenelld) is common not only in 

 this south-east district, but will be met with in most other boggy 

 places of the county. On the drier margins of the bogs will 

 be found the Bog Gentian (Gentiana Pneumonanthe), and some 

 species of Orchis. The Marsh Helleborine (Epipaclis paluslris) 

 is uncommon, but has been found in such places as the boggy 

 ground between Morden and Bloxworth. Wild Mignonette 

 (Reseda luted), frequents the more cultivated ground, as also do 

 White Campion (Lychnis vesperlina), and St. John's Wort 

 (Plypericum telraplenitii). On the higher ground will be found 



