260 PIN CIS LARIX 



turpentines. It is not now used in this country, except in veteri- 

 nary practice. 



The substance called Brianqon Manna, or Manna of the Larch, 

 also exudes in the height of the summer from the leaves of the 

 larch tree. It is a white saccharine substance, occurring in small, 

 opaque, sometimes crystalline, usually oblong tears, enclosing the 

 needle-like leaves ; and without any very marked odour, but having 

 a sweet taste. It contains a peculiar sugar called Melezitose. It 

 was formerly used in medicine, but has now disappeared from 

 commerce. 



Per. Mat. Med., by B. & E., p. 1070 ; Pharmacographia, pp. 373, 

 549, and 551 ; U. S. Disp., by W. & B., p. 863; Stenhouse, in 

 Phil. Trans., vol. clii (1862), p. 53 ; Mohl, in Botanische Zeitung 

 (1859), p. 329; Greenhow, in Medical Times, Feb. 20, 1864; 

 Dublin Hosp. Gaz., April 15, 1858, and Jan. 15, 1859; Amer. 

 Journ. Pharm., Jan., 1859, p. 61, and Nov., 1862, p. 555; Gui- 

 bourt, in Journ. de Pharm., vol. xxv, p. 500. 



DESCEIPTION OP PLATE. 



Drawn from a tree in Kew Gardens in April. 



1. A branch, with cones and male and female flowers. 



2. A male catkin. 



3. Section of the same. 



4. A stamen. 



5. Section of female cone. 



6. A bract, with the carpellary scale and ovules. 



7. Upper view of ripe scale with the two seeds. 



8. Outer view of same. 



9. A seed. 



10. Section of the same. 



(2-10 enlarged.) 



