LXVIII. ^ALICA^EiE : PO'PULUS. 



823 



Its usual period of leafing, in England, is before that of P. tremula. Among 

 the Cree Indians, the wood is esteemed to burn better, in a green state, than 

 that of any other tree in the country. 



2 5. P. (t,) graxdidenta'ta Michx. The Isxge-tootheA-leaved Poplar, 

 or North American large Aspen. 



Identification. Michx. Fl. Bor. Amer., 2. p. 243. ; Pursh Fl. Amer. Sept., 2. p. 619. 



The Sexes. The female is represented in Michaux's figure. 



Engravings. Michx. North Amer. Sylva, 2. t. 99. f. 2. ; and our fig, 1496. 



Spec. Char., ^c. Leaf, when young, reddish, 

 \-illous, after^fards glabrous on both sur- 

 faces ; the petiole compressed in the 

 terminal part ; the disk roundish-ovate, 

 acute, sinuately toothed with large un- 

 equal teeth. (Pursh,) A tree. Canada. 

 Height 40 ft. to 50 ft. with a trunk 10 

 or 12 inches in diameter. Introduced in 

 1772. Flowers brown ; April. Decaying 

 leaves dark brown or black. 



Varieti/. 



!t P. (t.) g. 2 pendida Michx. Flor. 

 Bor. Amer. is said to have pen- 

 dulous branches. H. S. 



The full-formed disk of the leaf is nearly 

 round, and 2 or 3 inches in width, with large 

 unequal indentations in the margins. The 

 most ornamental of all the poplars, when 

 the leaves expand in spring, from their 

 deep purplish red colour. 1496. p. (t.) grandidcntata. 



t 6. P. GR^'CA Ait. The Grecian, or Athenian, Poplar. 



Identification. Ait. Hort. Kew., ed. 1., 3. p. 407. ; Willd. Sp. PI., 4. p. 804.; X. Du Ham., 2. 



p. 185. 

 Derivation. The tree is supposed to be a native of North America, and to be named after the 



Tillage called Athens, on the banks of the Mississippi, where the tree grows abundantly. See 



Gard. Mag., 1840, p. 231. 

 The Sexes. The female is in the London Horticultural Society's arboretum ; and was, some years 



ago, in gardens at Bury St. Edmunds, and in the plantations of O. R. Oakes, Esq., at Newton, 



near that town. Willdenow, in his Sp. PL, also mentions the male as the only one that he had 



seen living. It is doubtful whether the male is in Britain. 

 Engravings. N. Du Ham., 2. t. 54. ; the plate of this tree in Arb. Brit., 1st edit., vol. vii. ; and our 



fig. 1497. 



Spec. Char., S;c. Branch round, glabrous. Petiole 

 compressed. Disk of leaf roundish ovate, having 

 a shallow sinus at the base, and terminating in an 

 acute point ; serrated with equal teeth that are 

 adpressed ; glabrous, except being slightly ciliated 

 on the edge. (Willd.) A tree, according to Willd., 

 wild in the islands of the Archipelago j but, not 

 being included in the Prod. Flora Grceca, it is more 

 probably a native of North America. Height 30 ft. 

 to 60 ft. Seeds ripe in May. Cultivated in Britain 

 in 1779. Flowers brown J March and April. De- 

 caying leaves black. 



I A handsome vigorous-growing tree, very interesting 

 I when in flower, from its numerous darkish-coloured 

 catkins, which have the plume-like character of those 

 ; of P. tremula, P. trepida, and P. grandidentata. The 

 ' leaves, in their form, colour, and general aspect, re- 

 . semble those of P. trepida, but are longer. 



3g 4 



