502 



ABIES CONCOLOR. 



closely imbricated, chestnut-brown perulse. Leaves persistent five seven 

 years, spirally inserted but on the lower sterile branches twisted at the 



base so as to point later- 

 ally on both sides in 

 two ranks, linear, obtuse 

 or emarginate, 1*5 2 inches 

 long, light glaucous green 

 with a depressed median 

 line above, with a pale 

 stomatiferous band on each 

 side of the thickened midrib 

 below ; on the fertile 

 branches shorter, thicker 

 and curved upwards and 

 inwards. Staminate flowers 

 axillary along the under 

 side of the shoots, stipitate, 

 cylindric, 0'5 0'75 inch 

 long, light violet-pink ; in- 

 volucral bracts few, broadly 

 ovate. Cones cylindric, 

 obtuse, 3 5 inches long 

 and about 1 *5 2 inches 

 in diameter, sometimes green,. 

 sometimes violet bef ore- 

 maturity ; scales transversely 

 roundish oblong, gradually 

 narrowed to a short, wedge- 

 shaped claw ; bracts a 

 little longer than the claw, 

 dilated from a cuneate base 

 into a rectangular den- 

 ticulate blade with a 

 mucro on the apical margin. 

 Seed wings large, sub-quad- 

 rate, reaching almost to 

 the ede of the scale. 



Fig. 129. Cone of Abies concolor. 

 Rocky Mountains type. 



(From the Gardeners' Chronicle.) 



Abies concolor, Lindley and Gordon in Journ. Hort. Soc. Lond. V. 210, name 

 only (1850). Engelmaim in Card. Chron. IX. (1878), p. 334 ; XII. (1879), 

 p. 684, with figs. ; and in Brewer and Watson's Bot. Califor. II. 118. McNab- 

 in Proceed. R. Irish Acad. II. ser. 2, 681, fig. 6. Masters in Journ. Linn. Soc. 

 XXII. 177, with figs. ; in Gard. Chron. VIII. ser. 3 (1890), p 748, with fig. ; and 

 in Journ. R. Hort Soc. XIV. 191. Beissner, Nadelholzk. 470, with figs. 



Picea concolor, Gordon, Pinet. ed. II. 216 (1875) 



Pinus concolor, Parlatore, D. C. Prodr. XVI. 426 (1868). 



Eng. Colorado Silver Fir. Anier. White Fir. Germ. Californische Weisstanne,. 

 Gleichfarbige Weisstanne. 



var. Lowiana. 



Leaves of the sterile branchlets usually longer than in the Colorado 

 type ; of a darker green and not glaucescent on the upper side ; with 

 two pale stomatiferous lines beneath and spreading in two ranks on each 

 side of the axis almost in a flat horizontal plane as in Abies <jrandis> 

 2 3 inches long on vigorous young trees growing in Great Britain. Cones 

 somewhat larger and scarcely distinguishable from those of A. grandis. 



