AECD-3446(App.)
21
Fig. 6— Photomicrograph of segment of a cross section of the
normal stem of Ipomoea tuba. (x 175). A, lacteriferous
duct; B, secretory cell; parenchyma; D, external
phloem; E, cambium; F, xylem; and G, internal phloem.
Fig. 7— Photomicrograph of normal growing tip. (x 145). A,
young leaf; B, tunica; and C, corpus.
RINGE |
DOF AR C