152 SELECT PLANTS FOK INDUSTRIAL CTJLTUKE 



Victoria along the river valleys of Gippsland and in other 

 similar localities. A pervious, especially alluvial soil, fertile 

 through manure or otherwise, appliances for irrigation, natural 

 or artificial, and also shelter against storms, are some of the 

 conditions for success in hop growth, and under such condi- 

 tions the rearing of hops will prove thus far profitable in 

 countries and localities of very different mean temperature. 

 A dry summer season is favourable to the ripening and 

 gathering of hops. On the Mitchell River, i in Gippsland, 

 1,500 lbs. have been obtained from an acre. In Tasmania 

 large crops have been realised for very many years. The plant 

 might be readily naturalised on river banks and in forest 

 valleys. The scaly fruit-cones form the commercial hops, 

 whose value largely depends on the minute glandular granules 

 of lupuline. Hops impart (their flavour to beer, and princi- 

 pally by their tannic acid prevent acetous fermentation and 

 precipitate albuminous substances from the malt. Hop pillows 

 are recommended to overcome want of sleep. Many of the 

 substitutes of hops are objectionable or deleterious. The re- 

 fuse of hops of breweries possess double the value of stable 

 manure. Active principles of hop leaves and fruits : a 

 peculiar volatile and a bitter acid substance. The fibre of the 

 stem can be made into cords and paper. The young shoots 

 can be used for food, dressed like asparagus. 



Hydnniu coralloides, Scopoli. 



Cashmere, in hollow trunks of Pinus Webbiana, called there 

 the Kbho Khur. Cooked, of excellent taste. 



Hydntim imbricatum, Linn^. 



In pine forests of Europe. A wholesome Mushroom of deli- 

 cious taste, which we should endeavour to naturalise in our pine 

 plantations. Other recommendable European species are: 

 H. erinaceum, Pers. ; H. coralloides. Scop. ; H. album, Pers. ; 

 H. diversidens, Fries ; H. auriscalpium, Linne ; H. subsqua- 

 mosum, Batsch ; H. IsBvigatum, Sw, ; H. violascens, Alb.; 

 H. infundibulum, Sw.j H. fuligineo-album, Schm. ; H. 

 graveolens, Brot. j H. Caput Medusae, Nees ; H. Hystrix, 

 Fries. These and other edible fungi are given on the author- 

 ity of Rosenthal's valuable work. The Rev. M. L. Berkley 

 and Dr. Goeppert add : Hydnum repandum, L., and H. suave- 

 olens. Scop. 



Hydrangea Thunbergi, Siebold, 



Japan. The leaves of this shrub give a peculiar Tea, called 

 there the " Tea of Heaven." 



