Structure and Histogenesis of the Buds of Pinus Lambertiana

abaxial acropetal adaxial base adjacent Amer anticlinal anticlinal divisions apical growth apical initials axillary buds axils basal region basipetal biseriate wing cataphylls cells fig diameter differentiation dwarf shoot dwarf shoot apex dwarf shoot axis elongation endodermal cells endodermis epidermal cells Esau foliar organs formation Foster ground meristem guard cell Gymnosperms histogenesis hypodermal inner derivatives intercalary meristem Jour Korody Lambertiana LIBRARY LIFORNIA lignified longitudinal sections marginal growth marginal initials median meristematic mesophyll mesophyll cells microns microns in height mother cells occur ontogenetic ontogeny parenchyma parent axis periclinal divisions phloem pines Pinus primordia primordium procambium prophylls resin canals rib meristem sclereids sclerenchyma sheath sieve cells stomatal sub-apical sub-apical cell sub-apical group sub-marginal initials subsidiary cells surface layer surface periclines tangential tannins terminal bud scales thickenings tion Transection transfusion tissue transfusion tracheids uniseriate UNIVERS UNIVERSIT UNIVERSITY OF CALIFORNIA vacuolate vascular bundle vascular tissue vertical winter bud xylem zonation