248 Select Plants for Industrial Culture and 



said to be wholesome [Simmonds]. Insects preying on the foliage 

 of this tree are poisoned by it. It will bear the frosts of Norway 

 to lat. 61 17' [Schuebeler]. 



Gynocardia odorata, R. Brown. 



From Burma to Sikkim and Khasia, ascending to 3,000 feet. A 

 tree to 50 feet high. Seeds large, the oil of which has come into 

 medicinal use as chaulmugra-oil [Christy]. 



Gyrophora esculenta, Miyoshi. 



The " Iwatake " of Japan. This Lichen grows there chiefly on 

 moist granitic rocks, and is extensively used for human nutriment, 

 and in this respect incomparable with any other Lichen, unless 

 perhaps Cetraria Islandica. The plant is sold in a dried state. It 

 would be worthy of naturalisation, as it does not take up any space 

 otherwise to be utilised ; it is not bitter nor has it any purgative 

 action, but is quite palatable ; contains much starchy and gelatinous 

 substance [Dr. Mambu Miyoshi]. 



Hsematoxylon Campechianum, Linn6. 



From South-Mexico to Venezuela. A tree, attaining 40 feet in 

 height. Flourishes still at a considerable distance from the tropics, 

 thus for instance at Moreton-Bay. It yields the Campeche-wood or 

 logwood for dyes and inks, and for a chemical reagent, the latter 

 depending on the principle Hasraatoxylin. A good black ink is 

 obtained by boiling 1 Ib. of logwood in 1 gallon of water down to 

 gallon strained fluid, to which are to be added 3 ounces of chrome- 

 alum, | ounce dextrin, and 15 drops of Creosote [Berliner Apo- 

 theker-Zeitung, 1894, p. 134]. 



Hagenia Abyssinica, Willdenow. (Brayera anthelmintica, Kunth.) 



Abyssinia, at elevations from 3,000 to 8,000 feet. A tall tree, 

 admitted in this list, because its flowers have come into medicinal 

 use as an anthelmintic. It is moreover quite eligible for ornamental 

 plantations. 



Hamamelis Virginica, Linne. 



Eastern States of North-America. The " Witch-Hazel." A 

 shrub or small tree. The leaves are renowned in the States for 

 medicinal properties ; the seeds are oily and edible. 



Hancornia speciosa, Gomes. 



Brazil, to far southern regions, on sandy plains. This small tree 

 may prove hardy in extra-tropic regions free of frost. The good- 

 sized berries are of very pleasant taste, and vernacularly known as 

 Mangaihas. Most valuable is the very elastic rubber of this plant. 

 Mr. Thomas Christie regards it as superior to Para-Rubber, and 

 worth at present 3s. per Ib. 



