194 



POPULUS. 



Populus nigra. Linn. 

 BLACK POPLAK. 



Popuhcs nigra, Linn. sp. pi. 1464. 



Smith's Eng. Bot. t. 1910. Id. Eng. Flor. iv. p. 245. 

 Hooker's Flor. Scot. p. 289. 

 Mackay's Flor. Hibern. part i. p. 251. 

 Loudon's Arb. Brit, part m. p. 1652. 



The specific or botanical characters of this species, ac- 

 cording to Smith and Hooker, are, leaves deltoid, pointed, 

 serrated, smooth on both sides, catkins lax, cylindrical, 

 stigmas four, simple and spreading. 



