Leisner, Robert S.2014-03-142014-03-141955-05-13etd-05192010-020050http://hdl.handle.net/10919/42741The literature was reviewed for information regarding anatomical studies of secondary xyqlem - particularly information pertaining to <u>Acer Nigrum, Platanus occidentalis</u>, and <u>Rhododendron maximum</u>.42 leavesBTDapplication/pdfenIn CopyrightLD5655.V855 1955.L447Acer nigrumAmerican sycamoreRhododendron maximumXylemStudies in the comparative anatomy of the vessel elements of the secondary xylem of Acer nigrum, Platanus occidentalis, and Rhododendron maximumThesishttp://scholar.lib.vt.edu/theses/available/etd-05192010-020050/