Naturalisation in Extra-Tropical Countries. 255 



Hierochloa redolens, R. Brown. 



South-Eastern Australia, there almost confined to the Alps ; also 

 in New Zealand, in the Antarctic Islands and the southern extremity 

 of America. A tall, perennial, blady grass, with the odor of Anthox- 

 anthum. It is worthy of dissemination on moist pasture-land in 

 cool countries. H. borealis of the colder regions of the northern 

 hemisphere accompanies H. redolens in the south, but is a smaller 

 grass. H. macrophylla (Thurber), the Vanilla-grass of California, is 

 a large tufted species. These grasses are to some extent valuable 

 for their fragrance as constituents of hay, the odorous principle, as 

 in Anthoxanthum, Melilotus and Asperula, being cumarin. They 

 are not sufficiently recognised as scent-plants for vases and other- 

 wise. Hierochloas are particularly appropriate for cold, wet, moory 

 grounds. 



Hippocrepis comosa, Linne. 



The Horse-shoe Vetch. Middle and Southern Europe, North- 

 Africa. A perennial fodder-herb, not without importance. Likes 

 stony ground, and delights like most leguminous herbs in limestone- 

 soil. The foliage is succulent and nutritious. Professor Langethal 

 recommends it for a change after Sainfoin-pastures fail. It fur- 

 nishes not quite as much but an earlier fodder. 



Hippophae rhamnoides, Linne". 



Europe, Western and Central Asia. One of the best of shrubs for 

 binding sand on sea-shores. Ascends to 15,000 feet in Thibet. 



Hirneola auricula Judae, Berkeley. (Exidia auricula, Judae, Fries.) 



Widely spread over the globe, extending also to Australia. Pre- 

 ferentially growing on Elders but also much on Elms. Of this 

 edible fungus the quantity exported from Tahiti to China in 1871 

 represented a value of 7,600 [Simmonds]. The export from New 

 Zealand to China in 1889 was 6,389 cwt., valued at 11,079 [Sir 

 James Hector]. Doubtless this useful fungus is amenable to trans- 

 location and subsequent naturalisation. 



Holboellia latifolia, Wallich. (H. acuminata, Lindley.) 



In the Himalayan Mountains at 4-9,000 feet elevation. Under 

 the above name H. latifolia and H. angustifolia are united, as neither 

 of the two appellations, given by Wallich, applies to the species as a 

 whole. The berries (fruitlets) of this climbing shrub are large, and 

 in the natural localities of the plant consumed for food. They may 

 on culture get ameliorated ; they remind in taste of the fruit of the 

 Passion-flower. 



