Naturalisation in Extra- Tropical Countries. 49 



Desf ., of the countries at or near the Mediterranean Sea, might 

 likewise be encouraged in their natural growth or be cultivated. All 

 feathery grasses are among the most lovely for minor decorative 

 purposes or designs, and this may also be said of the Australian 

 plumous Stipa elegantissima (La Billardiere) and S. Tuckeri 

 (F. v. M.)- 



Aristida pung-ens, Desfontaines. 



Northern and Central Africa. Constitutss the principal native 

 fodder-grass of the Sahara, being content with sand-soil. This 

 perennial tall grass is lauded as one of the most nutritive and 

 widely-spread there [Brockhaus]. 



Aristolochia Zndica, Linne. 



Tropical Asia, North-Eastern Australia and Polynesia. A 

 perennial climber ; the leaves famed as an alexipharmic. Jan only be 

 grown in places free from frost. 



Aristolochia recurvilabra, Hauce. 



The green " Putchuck " of China. A medicinal plant, largely 

 obtained at Ningpo. The present value of its local export is from 

 20,000 to 30,000 annually. 



Aristolochia serpentaria, Linne. 



The " Snake-root.'' South-Eastern States of North America. 

 The root of this trailing herb is valuable in medicine ; it contains 

 a peculiar volatile oil. Therapeutically the plant belongs to the 

 aromatic-bitter restorative agents, and is particularly a tonic 

 excitant. Several other Aristolochise deserve culture for medicinal 

 purposes, for instance, Aristolochia ovalifolia (the Guaco) and A. 

 anguicida, from the mountains of Central America. 



Aristotelia IKacqui, L'Heritier. 



Chili. The berries of this shrub, though small, have the pleasant 

 taste of bilberries, and are largely consumed in Chili [Philippi] . 

 The plant would thrive in mild forest- valleys. It is quite hardy in 

 South-Ireland. 



Arnica montana, Linne. 



Colder parts of Europe and Western Asia. This pretty herb is 

 perennial and of medicinal value. It is particularly eligible for 

 sub-alpine regions. Hardy in Norway to lat. 62 47 ; [Schuebeler]. 

 The active principles are arnicin, a volatile oil, caproic and caprylic 

 acids. Snuff can be prepared from this plant. The flowers can 

 only in small quantities be used, as incautious doses of this 

 medicine produce toxic symptoms ; it stimulates the salivary 

 glands, promotes the circulation, cerebral, cutaneous and renal 

 action. Externally applied as an excitant. 



D 



