(first posted at TTAC in 2009, on 3/21/2011 at CC. Please note that the GMDS series is not numbered according to any ranking of greater or. BOTANY 101—THE STEM APEX. By Wayne L. Handlos, Ph.D. l.s.Coleus stem 1 Coleus apical meristem 2 Stem apical meristem 3 Diagram: Pelargonium stem apex 4. (first posted at TTAC in 2009, on 3/21/2011 at CC. Please note that the GMDS series is not numbered…