232 BULLETIN 68. 



Am. ii . 243 ( 1 803) . P. Graca pendula , P. nigra pendula and Parasol 

 de St. Julien of nurserymen). lyARGE-TooTHED ASPEN. Fig. 12 ; 

 a, b, c, d, fig. i. This is a common native tree from Nova Scotia 

 to North Carolina. It is distinguished from the European aspen, 

 above, by much larger and thicker leaves which are bluish or 

 rusty- white beneath, more ovate in outline, with larger and more 

 spreading teeth, stouter leaf-stalks and larger leaf-buds. In its 



14. Populus tremuloides (% nat. size). 



normal or erect form, it is rarely cultivated, but the weeping va- 

 rieties, under a variety of names, are frequently seen. Most, and 

 perhaps all of these varieties originated in Europe, where the tree, 

 like the cottonwood and the common aspen, were early introduced. 

 The habit of the tree is too stiff and the foliage most too heavy 

 to make the best weeping subjects, however. One of the best of 

 these weeping forms is that known as Parasol de St. Julien. The 

 characteristic weak or zigzag winter twigs of the weeping varie- 

 ties of this species are shown in Fig. i . A is the form sold as 

 P. grandidentata pendula ; b is Parasol de St. Julien, and this 

 twig shows a flower-bud midway. These two forms, it will be 

 seen, have a stiffer or straighter habit than the two following. C 

 is the form sold as P. Gr&ca pendula, and d the one called P. nigra 

 pendula. 



