CHAP. CIII. SALICA CE^E. PO PULUS. 1657 



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

 by Michaux on the banks of the river Hudson, a little 

 above Albany ; and by Pursh about Lake Ontario. 

 Judging from the plants in the collection of Messrs. 

 Loddiges, and Michaux's figure, ve have no doubt 

 whatever of its being, like P. canadensis, merely a variety 

 of P. nigra. It is, however, tolerably distinct ; and, being 

 a small, neat, deep-green-leaved tree, well deserves a 

 place in collections. 



Statistics. In England, in Devonshire, at Endsleigh Cottage, 16 years 

 planted, it is .Wft. high, the diameter of the trunk 14 in., and of the head 

 11 ft. ; in Buckinghamshire, at Temple House, 40 years planted, it is 60 ft. 

 high, the diameter of the trunk 2 ft., and of the head 30ft. Price of plants 1516 



the same as in P. canadensis. 



$ 10. P. MONILI'FERA Ait. The Necklace-bearing, or black Italian, 



Poplar. 



Identification. Ait. Hort Kew., ed. 1., 3. p. 406. ; Willd. Arb., 232., Sp. PL, 4. p. 805. ; Pursh FI. 



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

 Syitonymes. P. virginiana Lin., Dcsf. Hort. Par., Dum. Sot. Cult., torn. 6. p. 400., Nouv. Cot/rs 



d'Agri.,tom. xi. p. 407. ; P. gtanduld*a Mocnch Mcth., p. 339. ; P. carolin^nsis Micnch ll'eissenst, 81., 



Jlurgsd. Anlcit., 378.; P. nlgra it^lica Lodd. Cat., edit. 18:36 ; P. nlgra americana Ibid. ; P. acla- 



desca I.indl. in Enc. of Plants, p. 840. ; ? P. marylandica Jiosc Nouv. Cotirs, 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 !-eres. 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. ; Wats. Dend. Brit., 2. 1. 102. ; 



OUT 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, 

 IVats., 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 Kewensis ; 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 CO 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. 



X P. m. 2 Lindlei/ima. Sooth; 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. 3 /<)/* 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. 



Desa-iption, $c. P. monilffera 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. 



