in Extra-Tropical Countries. 125 



The young pods, as well as the ripe seeds, of several varieties available 

 for culinary use. It delights in rich soil, and ripens in hot countries 

 within three months ; its yield is about forty-fold, according to Rox- 

 burgh. The whole plant forms excellent stable-feed for cattle. 



Dolichos uniflorus, Lamarck. 



Tropical and sub-tropical Africa and Asia. An annual herb, the 

 Horse-Gram of South-India, where it is extensively grown. Colonel 

 Sykes got over 300 seeds from a moderate-sized plant. Dr. Stewart 

 saw it cultivated up to 8,000 feet. Content with poor soils ; well 

 adapted for stable pulse. 



Dorema Anunoniacum, D. Don. 



From Persia extending to Afghanistan and Turkestan, up to 4,000 

 feet. A tall perennial herb, yielding the gum-resin Ammoniacum, 

 which might be obtained from plants introduced, especially as this 

 plant will grow in dry regions. 



Dracaena Draco, Linne". 



The Dragon-blood Tree of the Canary-Islands. An imposing 

 feature in scenic horticulture, with D. schizantha (Baker) of eastern, 

 tropical Africa ; it yields one kind of Dragon-blood resin. The 

 famed Dragon-tree of Teneriffe, measured in 1831, showed 46 feet 

 stem-circumference, and even at the commencement of the 15th 

 century was celebrated for its age and large proportions. 



Dracocephalum Moldavica, Linne. 



Northern and Middle Asia. An annual showy scent-herb; also of 

 some medicinal value and particularly for culinary condiment. 



Drimys "Winter!, R. and G. Forster. 



Extra-tropical South- America. The Canelo of Chili, sacred under 

 the name of Boighe to the original inhabitants. Attains in river- 

 valleys a height of 60 feet. The wood never attacked by insects 

 (Dr. Philippi). Bark used for medicinal purposes. The Australian 

 and New Zealand species may be equally valuable. 



Duboisia Hopwoodii, F. v. Mueller. 



The Pitury. Inland desert-regions from New South Wales and 

 Queensland to near the west-coast of Australia. This shrub deserves 

 cultivation on account of its highly stimulating properties. D. 

 myoporoides (R. Br.) of East- Australia and New Caledonia has come 

 into use for ophthalmic surgery. The alkaloid of the latter, duboisin, 

 is allied to piturin, and important as a mydriatic (Bancroft). The 

 tree attains in deep forest-glens a height of 60 feet (Ralston), but 

 flowers even as a shrub. 



Duvaua longifolia, Lindley. 



La Plata-States. This shrub and the allied D. latifolia, called 

 Molle there, yield foliage rich in tannin (about 20 per cent.), which, 

 as it does not give any color to leather, is much valued for particular 

 currying (Dr. Lorentz). 



