254 



GREY POPLAR 



with irregular, coarse, broadly triangular blunt teeth, 

 passing to sinuate-lobed. See p. 208. 



-i- -i- Petioles 3 8 cm. long, compressed. 



8 Buds not viscid; lut, like the 

 petioles and shoots, velvety or 

 cottony. 



Populus alba, var. canescens. Grey Poplar (Fig. 90). 

 Moderate-sized tree. Leaves thin, rounded-ovate, rounded- 

 deltoid, or nearly heart-shaped, to sub-orbicular, angular 



Fig. 90. Grey Poplar, Populus alba, v. canescens, p. 254 (Ett). 



or coarsely sinuate-dentate into irregular blunt triangular 

 teeth ; grey-tomentose or silky-woolly beneath, with greyer 

 tomentum than in P. alba, becoming more or less glabrous 

 as the leaf ages ; bluntly acuminate, about 5 6 cm. dia- 

 meter (5 8 x 5 6*5 cm.), or, on strong suckers up to 

 10 12 x 8 cm. Autumn leaves yellow and brown. 

 Venation pseudo-palmate. The two lowest secondaries 



