Amphiphloic $(bicollateral)$ condition of stele means that
Phloem is surrounded by xylem
Phloem is on both sides of xylem
Phloem is internal to xylem
Phloem is external to xylem
A fibre which contains simple pits is
Stomatal apparatus consists of
Vascular bundles in the stem of Cucurbita or Lagenaria are
Intercalary meristem is a derivative of
Ring bark is present in