Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae Author Tutin, T. G. Author Heywood, V. H. Author Burges, N. A. Author Moore, D. M. Author Valentine, D. H. Author Walters, S. M. Author Webb, D. A. text 1964 Cambridge University Press book 10.5281/zenodo.302862 302862 4. Picea A. Dietr. 1 Evergreen trees with regularly whorled branches. Short shoots absent. Leaves spirally arranged, linear, flattened or tetragonal; resin-canals 0-2; leaves borne on persistent, peg-like projections. Male flowers in leaf-axils of previous year’s twigs. Cones ripening in the first year, ovoid or cylindrical; scales persistent; bracts minute, not exserted. 1 Leaves flattened, with two white stomatiferous bands only on the upper surface 2 Leaves15-25mm, pungent;cones6 -10 cm 6. sitchensis 2 Leaves 8-18 mm, obtuse and mucronulate; cones 3-6 cm 7. omorika 1 Leaves tetragonal, stomatiferous on all four sides 3 Twigs glabrous or with scattered, minute pubescence 4 Cones 3-5-5 cm; leaves with a strong, unpleasant smell when crushed 3. glauca 4 Cones 6-18 cm; leaves not smelling unpleasantly when crushed 5 Cones 6-10 cm; leaves bluish-green 5. pungens 5 Cones 10-18 cm; leaves dark green 1. abies 3 Twigs denselyandshortlypubescent 6 Leaves 6-10 mm, obtuse 2. orientalis 6 Leaves 10-25 mm, acute 7 Twigs brown; leaves 10-18 mm; scales obovate, with rounded and entire or emarginate apex 1. abies 7 Twigs pale yellowish-brown; leaves 15-25 mm; scales rhombic-oblong, narrowed, truncate and erose at apex 4. engelmannii