CHAP. CIII. SALICA^CEiE. PO PULUS. 1657 



40ft., with a trunk 12 in. or 15 in. in diameter; found v 1 



by Michaux on the banks of the river Hudson, a little ^C^m^v^f 



above Albany ; and by Pursh about Lake Ontario. v^^vW - / 

 Judging from the plants in the collection of Messrs. ^^\tyT& f 



Loddiges, and Michaux's figure, we have no doubt „- 15x~ r ~?l 



whatever of its being, like P. canadensis, merely a variety '^^j \h W^za^ 



of P. nigra. It is, however, tolerably distinct ; and, being fc^X \({ w? { 

 a small, neat, deep-green-leaved tree, well deserves a \hV~kLj 



place in collections. y"~X I Vv - ^ 



Statistics. In England, in Devonshire, at Endsleigh Cottage, 16 years ^.,£0>-^\ I 



planted, it is 50 ft. high, the diameter of the trunk 14 in., and of the head '~^dA f/\A 



12 ft. j in Buckinghamshire, at Temple House, 40 years planted, it is 60 ft. ^V Ml 



high, the diameter of the trunk 2 ft., and of the head 30 ft. Price of plants 151(5 | 

 the same as in P. canadensis. 



^ 10. P. monili'fera Ait. The Necklace-bearing, or black Italian, 



Poplar. 



Identification. Ait. Hort Kew. ed. 1., S. p. 406.; Willd. Arb. } 232., Sp. PI., 4. p. 805. ; Pursh Fl. 



Amer. Sept., 2. p. 618. ; Wats. Dend. Brit., t. 102. 

 Synonymes. P. virginiana Lin., Desf. Hort. Par., Bum. Bot. Cult., torn. 6. p. 400., Nouv. Cours 



iVAgri., torn. xi. p. 407. ; P. glanduldsa Mcench Meth., p. 339. ; P. carol int^nsis Mcench Weisscnst, 81., 



Burgsd. Anleit., 378. ; P. nigra italica Lodd. Cat., edit. 1836 ; P. nigra americana Ibid. ; P. acla- 



desca Lindl. in Enc. of Plants, p. 840. ; ? P. marylandica Bosc Nouv. Cours, art. Peuplier, p. 409. ; 



Virginian Poplar, Swiss Poplar, Canadian, or Berry-bearing, Poplar, Mill. ; Peuplier Suisse, Peuplier 



triphilon (see Nouv. Cours), Peuplier de Virginie, Dumont. 

 Derivation. The epithet necklace-bearing alludes to the shape of the female catkins, which in their 



capsules, and the manner in which these are attached to the rachis, resemble strings of beads. 



Swiss poplar, and black Italian poplar, allude to the tree being very abundant in Switzerland and 



the north of Italy. 

 The Sexes. Both sexes are frequent in British collections, but the male is most abundant. Both are 



in the London Horticultural Society's Garden. The female is figured and described by Watson 



(see Dend. Brit., t. 102.), who has figured some parts of the male flower in the same plate. Bosc 



remarks that only the male is cultivated in French gardens. 

 Engravings. Michx. Arb., t. 10. f. 2. ; N. Amer. Syl., 2. t. 96. f. 2. j Wats. Dend. Brit., 2. 1. 102. ; 



our Jig. 1517. ; and the plates of this tree in our last Volume. 



Spec. Char., §c. Shoot more or less angular. Branch round. Petiole 

 slender, compressed in the upper part ; in some leaves, shorter than the 

 disk, in others longer. Disk deltoid, glanded at the base, which is sub- 

 cordate in some leaves, and very obtusely wedge-shaped in others ; tip 

 acute; edge serrated all round, except in the central part of the base, and 

 at the acute tip, the teeth have incurved points ; glabrous, except in the 

 edge, which, at least when the leaf is growing, is ciliate ; edge ultimately, 

 and perhaps early, gristly. Male flowers about 30. in a catkin, upon pe- 

 dicels. Bractea glabrous. Stamens 16, a little longer than the corolla. 

 Female flowers about 40 in a catkin. Stigmas 4, dilated, jagged. {Pursh, 

 Wats., Michx., Spreng., and obs.) It is rather doubtful to what country 

 this poplar is indigenous : Canada is given as its native country in the 

 Hortus Kcwensis ; but, in the Nouveau Du Hamel, it is stated to be a native 

 of Virginia. Michaux, jun., states that neither he nor his father ever found 

 it wild in America; and Pursh adds that he has only seen it in that 

 country in gardens. According to the Hortus Kewensis, it was introduced 

 into Britain by Dr. John Hope, in 1772. It is a tree, according to Pursh, 

 from 60 ft. to 70 ft. high in America ; but in Britain it grows to the height 

 of 100 ft. or 120 ft., or upwards ; flowering in March, and ripening its seeds 

 about the middle of May. 



Varieties. 



It P. m. 2 Lindlevima Booth; the new waved-leaved Poplar, Hort.; has 

 rather larger leaves than the species, and they are somewhat more 

 undulated. The plant in the London Horticultural Society's Gar- 

 den is 13 ft. high. 

 ^ P. m. 3foliis variegdtis Hort. — The tree in the Horticultural Society's 

 Garden is between 30ft. and 40ft. high; but its variegation is by 

 no means conspicuous, except in early spring. 

 Description, fyc. P. monilifera is the most rapid-growing of all the poplars ; 

 and its timber is equal, if not superior, in quality to that of any other species. 



