Page 17 – Growing region of the stem
Fig. 17 . Growing region of the stem. Radial section of the growing region or most distal portion of the apical meristem (as) of the stem. The last formed (i.e., youngest) leaf primordium (l) is on the left, and a portion of the next youngest leaf primordium (l₁,) is in the upper right portion of the photograph. Notice that the primordia overarch the growing region; also, that the dermatogen of the leaf primordium (ld) is continuous with that of the stem (sd). n, nucleus. X800.