The Vascular Cambium: Development and Structure

Acer anticlinal divisions axial canals Bailey Bannan Barghoorn bark bast callus cambial activity cambial cells Catesson cell division cell length cell wall conifers Cumbie daughter cells derivatives diameter dicotyledons differentiation dividing ducts earlywood elongation Esau Evert Fahn fibers formation formed frequency of anticlinal fusiform cambial fusiform initials Ghouse girdle grain growth rings gymnosperms Hartig Hejnowicz increase intercellular intrusive growth Iqbal Krawczyszyn Larix later latewood layer meristem multiseriate Neeff number of cells observed occurred parenchyma parenchyma cells pattern periclinal divisions phloem Picea abies Pinus strobus Pinus sylvestris pith plasmodesmata Populus primary produced pseudotransverse division Quercus Raatz radial file radial walls ray cell initials ray height resin canals Sanio season secondary shown in Fig sliding growth species stem structure tangential sections tangential walls Thuja occidentalis tissue trabeculae tracheid length tracheids trees uniseriate rays vascular cambium vessel vessel elements wood wound xylem and phloem xylem mother cells