Lxxvii. coni'fer.e : ^^'bies. 



1033 



t 



I 



breadth at the widest part. Seeds about the size of those of the common 

 spruce ; with the wing, |in. long, and fin. broad. A pyramidal drooping- 

 branched tree. Himalayas, in Karaaon and Sirmore. Height 50 ft. Intro- 

 duced in 1818. The tree has not yet flowered in England. 

 Varieties. Dr. Rovle observes that the leaves in his figure ai e much narrower 

 than those of A. Smithiana in Wallich's figure; and that the plants may 

 probably be different species or varieties. Judging from the leaves, the tree 

 in the Horticultural Society's Garden appears to be Dr. Ro}le's tree. 

 The rate of growth of this tree in British gardens is almost as rapid as that 

 of the common spruce, to which it bears a very close resemblance, but the 

 leaves are longer and paler. It is readily propagated by cuttings, and abundance 

 of seeds havelately been imported. Some doul)tg having been expressed as to 

 whether this plant is the A. Umithiann of Wallich (see Bot. Reg. for 1841), 

 but none as to its being the P. Kliutroiv of Royle, we have in this edition 

 preferred the latter name. 



ii. Leaves jiat^ generalli/ glaucous beneath, imperfectly 2-rowed. 



D. Natives of North America. 



i 8. A. DouGL.\'s// Lindl. The trident-bracted, or Douglas's, Spruce Fir. 



Identification. Lindl. in Penn. Cvc, 1. p. 32. ; Plantfe Hartweg, No. 439. 



Synonymes. P. /axifftlia Ln7yib. Pin. ed. 2. 2. t. 47., Pursh Fl. Amer. Sept. 2. p. 640. ; A. California 

 ' Hort. ; Pinus Douglksn Sabine MSS., Lamb. Pin. vol. 3. t. 90. ; the Nootka Fir, Smith in Rees's 



Cyc. No. 28. ^ . , 



Engravings. Lamb. Pin., ed. 2., 2. t. 47., and vol 3. t. 90. ; the plate of this tree m Arb. Bnt., 1st 



edit., vol. viii. ; our fig. 19:i2., from a specimen and sketch sent to us by Mr. M'Nab, jun., of the 



Caledonian Horticultural Society's Garden ; and omfig. 1933. 



Spec. Char., Sfc. Leaves flat, blunt, entire, pectinate, silvery beneath. Cones, 

 ovate-oblong. Bracteas elongated, linear, 3-pointed. {D. Don.) Leaves 

 from I in. to li in. long. Cones from 3f in. to 4 in. long, and 1 4 in. to If in. 

 broad ; scales, without the bractea, li in. long, and the same broad ; with 



14 in. 



Seed, with the wing, |-in. long, and 



in. 



in length, 

 without the wing, Jin. long, and y\ in. broad. The seeds are about 



Cotyledons. '?. 



the bracte; 

 broad 



the same size as those of Picea pectinata, but more oblong. 

 A tall tree. North-west coast of North America, in forests. Height 100 ft. 

 to 180 ft. Introduced in 18-26. It flowers in the climate of London in 

 May, and its cones are matured in the June or July of the following year. 

 Varieties. Cones of different sizes, and somewhat different in the shape and 

 size of the scales, have been sent home by Hartweg and others ; because, 

 doubtless, this s{)ecies of spruce is liable to vary as well as every other ; 

 and the slightest variation in any species of plant which is comparatively 

 rare is immediately constituted a named variety. Only one variety, that we 

 have heard of, deserves notice. 



A. D. 2 taxifo/ia. Stem and 

 Douglasji they are always, 

 when young, more or less in 

 a zigzag direction, though 

 they become eventually 

 straight. Leaves twice the 

 length of those of A. Dou- 

 glasii, and of a much deeper 

 green. Fig. 1932. is from a 

 specimen and a sketch re- 

 ceived from Mr. M'Nab, 

 showing the foliage and 

 manner of branching of A. 

 DouglasK in the Caledonian 

 Horticultural Society's Gar- 

 den, and which corresponds 

 exactly with the trees of this 

 name in the Chiswick Garden 



side branches 



straight 



vhile 



in 



19.i2. A. D. (aiirolia 



