332 TREES AND SHRUBS 



besides an occasional thinning out, are much im- 

 proved by dividing up every three or four years. 



R. FERRUGiNEA (R. rubrifolia). — This species, 

 which comes from the Pyrenees and Alps, is re- 

 markable for the reddish-purple colour of its leaves 

 and young shoots. Groups of half-a-dozen or more 

 plants give a striking colour effect. The flowers are 

 similar to the Dog Rose, but red. 



R. L^viGATA (R. sinica). — Except in the south 

 and south-west or in similarly favoured localities, this 

 is not really hardy, but where it thrives it is a singu- 

 larly beautiful Rose, perhaps unsurpassed among 

 single Roses in the size of its pure white flowers. It 

 is known as the Cherokee Rose, and is naturalised in 

 some of the Southern United States. A lovely hybrid 

 between it and R. indica has been raised and named 

 Anemone. Its flowers are soft rose. 



R. LUTEA (Austrian Briar). — Of all the Wild Yellow 

 Roses this is the most beautiful. The yellow-flowered 

 species do not, as a rule, thrive so well as the others 

 in gardens— one has only to mention such species as 

 berberifolia, sulphurea, xanthina (or Ecce) to recall that. 

 But R. lutea, in strong loam with plenty of lime added, 

 generally thrives well. The copper-coloured varieties 

 are more difficult to deal with in suburban districts. 

 The flowers of the typical R. lutea are of the brightest 

 rich yellow. When in good health it produces each 

 year long arching shoots, wreathed from end to end 

 with blossom. This species comes from the Orient. 



R. MICROPHYLLA This interesting species is 



closely allied to R. rugosa, and is a native of 



