In height until the lower parts are well thickened, when it may be allowed to acquire the allotted height by moderate annual increments.
7rLru), a name given by the ancients to some of the resinous cone-bearing trees to which it is now applied, and, as limited by modern botanists, the designation of a large genus of true conifers, differing from the firs in their hard woody cone-scales being thickened at the apex, and in their slender needle - shaped leaves growing from a membranous sheath, either in pairs or from three to five together - each tuft representing an abortive branch, springing from the axil of a partially deciduous scale-leaf, the base of which remains closely adherent to the stem.
Long; in the earlier stages of growth it has a pyramidal form, in open glades the lower boughs often touching the ground, but in old age it acquires a wide almost cedar-like top. The light bluish-green foliage is somewhat lax, very dense in young trees; the cones are long and rather curved, with thin smooth scales a little thickened at the apex, and generally more or less covered with exuding white resin; they are about 5 or 6 in.
Along this surface stretches a groove which is surrounded by thickened cuticle and practically formed into a tube by numerous fine hairs.
This outer wall was thickened about the IInd or IIIrd dynasty.