IN EXTEA-TKOPICAL COUNTRIES. 47 



Other species require to be tested, among them the one which 

 was recently discovered in Lord Howe's Island, — namely, 

 Boehmeria calophleba. 



Boletus bovinus, Linne. 



Europe. Besides this species Dr. Goeppert mentions also the 

 following as sold for food in the markets of Silesia : B. cirdr 

 nans, Persoon ; B. edulis. Bull. ; B. luteus, L. ; B, sapidus, 

 Harzer; B, scaler, Bull.; B. suhtomentosus, L. ; B. variegatus, Sw. 



Bongardia Rauwolfi, C. A. Meyer. 



Prom Greece through Turkey to the Caucasus. A perennial 

 herb, the leaves of which are utilised like culinary sorrel. 



Borassus Aethiopicus, Martius. 



Africa, from Zanzibar to Egypt. A Palm of gigantic dimen- 

 sions, attaining a stem 9 feet in diameter at the base, or 7 feet 

 at 4 feet above the ground; sometimes stems have even been 

 measured having a circumference of 37 feet. The leaves are as 

 much as 12 feet across, serving for baskets, mats, ropes, and 

 sieves. The edible portion of the fruit is yellow, stringy, of a 

 fruity flavour. The sap obtained from incisions in the stem 

 under the leaves yields a kind of palm wine. In its natural 

 home the tree always denotes water (Colonel Grant). 



Borassus flabelliformis, Linne.* 



The Palmyra. From the Persian Gulf to India, extending to 

 30° North, This noble Palm attains a height of 100 feet. 

 The pulp of the fruit serves as food. Enormous masses of 

 sugar or toddy are produced in India from the sap, which 

 flows from incisions of the stalk of the unexpended flowers. 

 Also to be reared for scenic plantations. 



Boronia megastigma, Nees. 



In "West Australia on margins of swamps. This remarkable 

 bush is recorded here as an emblem of mourning, its external 

 blackish flowers rendering it especially eligible for graves. In- 

 dustrially it interests us on account of its powerfully fragrant 

 blossoms, for the sake of which this bush well deserves to be 

 cultivated. The scent might be extracted by Mr. Bosisto's 

 process. 



Borrago officinalis, Linne. 



South Europe, Orient. An annual herb, occasionally used for 

 medicinal purposes or as an admixture to salad. 



