296 SELECT PLANTS FOR INDUSTRIAL CULTURE 



Rubus occidentalis, Linne.* 



The Black Raspberry or Thimbleberry. North America. A species 

 with woody stems and nice fruits, with a glaucous bloom, well 

 flavoured and large. It ripens early. 



Rubus odoratus, Linne. 



North America. A kind of Raspberry. A handsome species on 

 account of its large purple flowers. Berry edible. Culture would 

 doubtless enhance the value of the fruits of many of these Rubi. 

 Hybridising might be tried. R. Nutkanus (Mocino) is the Salmon- 

 Raspberry of Western North America and closely allied to R. 

 odoratus. 



Rubus parvifolius, Linne. 



East Asia, East and South Australia. In the Alps of Yictoria it 

 produces much finer fruits than in the lowlands. 



Rubus rosifolius, Smith. 



Tropical and sub-tropical regions of Africa and Asia, also throughout 

 the littoral forests of East Australia. This shrub bears in woody 

 regions an abundance of fruits of large size, and these early and 

 long in the season. 



Rubus rugosus, Smith.* 



South Asia. The fruit, which ripens all the year round in temperate 

 climes, is nearly twice the size of the ordinary Blackberry. 



Rubus strigosus, Miehaux.* 



North America. Closely allied to the European Raspberry. Its 

 fruits large, also of excellent taste. It would lead too far to 

 enumerate other kinds of Rubus, although about a hundred genuine 

 species occur, which render the genus one of very wide dispersion 

 over the globe. 



Rubus trivialis, Michaux.* 



Southern States of North America. Another shrubby species with 

 good edible fruits, which are large and black. The plant will thrive 

 in dry sandy soil. Like many other species, rich in tannic acid. 



Rum ex Acetosa, Linne. 



The Kitchen Sorrel. Europe, Middle and North Asia to Japan, 

 also in the frigid zone of North America. A perennial herb. The 

 tender varieties, particularly the Spanish one, serve as pleasant 

 acidulous vegetables, but must be used in moderation, as their 

 acidity, like that of the species of Oxalis (Wood Sorrel), depends on 

 binoxalate of potash. The South African R. luxurians (L.) serves 

 likewise as culinary sorrel. A species of Rumex, vernacularly 



