De I. VNER VEW D Forest Trees of the Pacific Slope

FOREST TREES OF THE PACIFIC SLOPE. 117
eastern range. The long-iuaintained A bics lotciana Murray (cultivated in
England, where it was first described), the Abics concolor loiriana of American
authors, is a form of the white fir distinguished mainly by the length of its
FIG. 43 -tbies concolor, lower branch.
leaves. It is exceedingly difficult, however, to longer maintain, even as a variety,
a form based upon a character so clearly unstable. The cones (fig. 44) are
mature early in Septembey, when they are very pale olive green with an ashen