21 S PICE A, OB, 



the banks of the river at South Umpqua, and in Vancouver's 

 Island, and, according to Fendler, on the Eocky Mountains, but 

 not common. 



It is quite hardy, not having been in the least injured by 

 the winter of 1860-1 ; but the plants suffer more or less from 

 the late Spring frosts, as they commence growing early in 

 the season, which is not the case with either Picea Lowiana, or 

 amabUis. 



No. 17. PiCEA Lowiana, Gordon, Messrs. Low's Califomian 

 Silver Fir. 

 Syn. Picea grandis, Lobb, not Douglas. 



„ „ lasiocarpa, Hort not Hooker. 



„ „ Parsonsi, Hart. 



„ „ Lowi, Sort. 

 Leaves long, linear, flat, and quite straight, channelled above, 

 more or less twisted at the base, rather distant and strictly 

 arranged in two horizontal rows along the shoots, and from 

 one and a half to two and a half inches long, and one line 

 broad, blunt pointed, or with a slight notch in the centre, 

 particularly those on the adult trees, and all of a dull, glaucous 

 green above, but much paler, and with two faint glaucous 

 bands below, between the elevated mid-rib and thickened 

 margins. Branches in distant whorls, horizontally placed, and 

 rather slender. Branchlets more or less opposite, quite smooth, 

 slender, laterally placed in two horizontal rows, and of a pale 

 yellowish colour. Cones from three and a half to five inches 

 long, and one inch and a half broad ; erect, cylindrical, and obtuse 

 at the points, rounded at the base, of a pale brown colour, and 

 emitting numerous transparent resinous tears externally, and 

 very similar in shape and general appearance, but somewhat 

 larger than those of Picea grandis. Scales broad, more or less 

 crescent-shaped, rounded on the outer side, incurved round the 

 margins, woolly on the exposed parts, tolerably equal in size, 

 and deciduous when fuUy matured. Bracteas very minute, 

 dorsally placed at the base of the scales ; broader than long, 

 somewhat rounded, wedge-shaped on the upper part, toothed 



