IX EXTRA-TROPICAL COUNTRIES. 133 



Eugenia rotundifolia, Wight. 



Ceylon, up to 8,000 feet ; rejoicing] therefore in a cool or even 

 cold climate. 



Eugenia Smithii, Poiret. 



From Gippsland to Queensland. A splendid large umbrageous 

 tree, but not of quick growth, and requiring rich soil in river-valleys 

 for its perfect development. The bark contains about 17 per cent, 

 tannin. This fact may give a clue to the recognition of the same 

 tan-principle in the barks of numerous other species of the large 

 genus Eugenia. 



Eugenia supra-axillaris, Spring. 



The Tata of South Brazil. Fruit large. 



Eugenia uniflora, Linne. 



Extra-tropical South America. A tree of beautiful habit, with 

 edible fruit of cherry size. Dr. Lorentz mentions also as a sub- 

 tropical Argentine fruit species E. Mato. 



Eugenia Zeyheri, Harvey. 



South Africa. A tree attaining 20 feet in height. The berries 

 are of cherry size and edible. The relative value of the fruits of 

 many Asiatic, African and American species of Eugenia remains 

 to be ascertained ; many of them furnish doubtless good timber, 

 and all more or less essential oil ; some probably also superior fruit. 

 All such, even tropical trees, should be tested in warm tracts of the 

 temperate zone, inasmuch as many of them endure a cooler clime 

 than is generally supposed. Hence Anona muricata, L., the Sour- 

 sop Bush of West India, should also be subjected to test culture for 

 the yield of its sweet, fragrant, melon-like fruit ; and not less so 

 Anona squamosa, L., the Sweetsop Shrub or Tree of Central 

 America, for the sake of its very pleasant fruit. 



Eupatorium triplinerve, Yahl. (E. Ayapana, Yentenat.) 



Central America. A perennial somewhat shrubby herb, possibly 

 hardy in the warmer parts of extra-tropical countries. It is used 

 as a medicinal plant, also as an alexipharmic. It contains eupa- 

 torin and much essential oil peculiar to the plant. It stands 

 locally in renown as a remedy against ophidian poisons, and is 

 evidently possessed of important medicinal properties. A tanning 

 extract is prepared for the English market from this herb, which 

 contains about 20 per cent, tannic acid. 



Euryale ferox, Salisbury. 



From tropical Asia to Japan. Though less magnificent than the 

 grand Victoria Regia, this closely-allied water-lily is much more 



