200 SELECT PLANTS READILY ELIGIBLE 



this bush. It is remarkably rich in tannic acid, yielding as 

 much as 30 per cent., and extensively used for the production 

 of a superior Corduan- or Maraquin-leather. The cultivation 

 presents no difficulty. Sumach can also be used for ink 

 and various, particularly black dyes. Under favourable 

 circumstances as much as a ton of Sumach is obtained from 

 an acre. 

 Rhus Cotinus, Linne. 



The Scotino. Countries of the Mediterranean Sea, extending 

 to the Himalayas. The wood of this bush furnishes a 

 yellow pigment. The Scotino, so invaluable as a material for 

 yellow and black dye, and as a superior tanning substance, 

 consists of the ground foliage of this plant. 



Rhus glabra, Linne. 



North America, extending to 54° N. latitude. This Sumach 

 shrub will grow on rocky and sterile soil. It produces a 

 kind of gall, and can also be used as a good substitute for the 

 ordinary Sumach. This sjDecies can be easily multiplied from 

 suckers. It will live on poor soil. American Sumachs 

 contain generally from 15 to 20 per cent, tannin. 



Rhus lucida, Linne. 



South Africa. This shrub proved here of particular adapta- 

 bility for forming hedges. AbOut half a hundred South 

 African species are known, of which probably some could be 

 utilised like ordinary Sumach, but hitherto we have remained 

 unacquainted with the nature and degree of any of their 

 tanning and colouring principles. 



Rhus semialata, Murray. 



China and Jaj^an, extending to the Himalayas. Attains a 

 height of forty feet. This shrub produces a kind of nutgalls. 



Rhus succedanea, Linne. 



The J apan Wax-tree, the produce of which has found its way 

 into the English market. 



Rhus typhina, Linne. 



The Staghorn-Sumach. North America, extending to 

 Canada. This species will grow to a tree of thirty feet 

 high. Its wood is of an orange tinge. Through incisions 

 into the bark a kind of Copal is obtained. The leaves can 

 be used like ordinary Sumach. This bush can be reared on 

 inferior land. 



Rhus vernicifera, Candolle. 



Extends from Nepal to J apan. It forms a tree of fair size, 

 and yields the Japan varnish. It ascends in India to 7000 

 feet, but Stewart and Brandis are doubtful whether the Japan 

 species (R. Yernix, L.) is really identical with the Indian. 



