Stránka:book 1922.djvu/407

Z thewoodcraft.org
Tato stránka nebyla zkontrolována

Forestry rmrs GRAT B/RCH Ofi ASPEN t.EAV£:D BIRCH BBTULA POPOUFOLfA ^k4f( ^_ A N S . BETULACE^ — BIRCH FAMILY Gray Birch or Aspen-Leaved Birch. (Betula poptdifolia) A small tree found on dry and poor soil; rarely 50 feet high. Wood soft, close-grained, not strong, splits in drying, useless for weather or ground work. A cubic foot weighs 36 lbs. Leaves 2 to 3 inches long. It has a black triangular scar at each armpit.