Naturalisation in Extra-Tropical Countries. 249 



Hardwickia binata, Roxburgh. 



India, up to elevations of nearly 4,000 feet. Maximum-height of 

 tree, 120 feet. Wood from red-brown to nearly black, close-grained, 

 exceedingly hard, heavy and durable ; valued for under-ground 

 work. The bark furnishes easily a valuable material for cordage. 

 The tree can readily be pollarded for cattle-fodder [Brandis], 



Harpephyllum Caflrum, Bernhardi. 



The Kaffir Plum-tree. South-Africa. A large spreading ever- 

 green tree, the fruit of which makes a fair preserve ; the timber is 

 used for furniture and waggon-work. Sometimes planted at mid- 

 summer as fencing poles, each of which grows and forms a shelter- 

 belt round fields [T. R. Sim]. 



Harpullia Hillii, F. v. Mueller. 



The Tulip- Wood of Queensland. One of the most important of 

 the numerous kinds of trees indigenous there for select cabinet-work. 

 H. pendula (Planchon) is equally valuable. 



Hedeoma pulegioides, Persoon. 



The Penny-royal of Eastern North- America. An annual herb 

 of aromatic taste, employed in medicine. The volatile oil is also 

 in use. 



Hedera Helix, Fuchs. 



The Ivy. Europe, Northern Africa, Western Asia as far as the 

 Himalayas. Not to be omitted here, as it quickly forms evergreen 

 walls over all kinds of fences and on sides of buildings without 

 injuring any sound masonry ; it is also a bee-plant. Ivdividual 

 plants will live through several centuries. A particular Ivy at 

 Montpellier is now 440 years old. One of the readily available and 

 most effectual of plants for surrounding and concealing with its 

 twigs any tubs, boxes, pots and other articles at horticultural shows. 

 The variety with yellow-marked leaves is singularly ornamental. 

 Resists the smoky air of cities [Loudon]. Hederic acid is of 

 medicinal value. A decoction of the leaves dyes hair black. 



Hedysarum coronarium, Linne.* 



The Soola- or Sulla-Clover. Southern Europe, Northern Africa. 

 One of the best of perennial fodder-herbs, yielding a bulky return. 

 It is also recommendable as quite a handsome garden-plant and as a 

 honey-plant, the Maltese honey owing its superior flavor mainly to 

 this plant. The plant likes lime in the soil. Mons. Scribeaux 

 recommends stirring the seeds for some few minutes in hot water 

 before sowing, whereby the germination is much facilitated. 



