Title
Page 39 – Stem apex and leaf primordia
Creator
Date
c. 1940
Format
Description
Fig. 33 .
(following)
Stem apex and leaf primordia
Outlines of a series of transverse sections of the apical portion of the stem from a 4-months-old plant to show the development of the leaf primordia and young leaves. Sections (cut 15/ᵘ thick) are shown in serial sequence, A-F, incl. l, last formed or youngest leaf primordium; l₁, l₂, l₃, and l₄ are successively older primordia and leaves; sa, stem apex. The broken lines represent the lateral or lower limits of the primordia and leaves, and the dotted lines, the peripheral limits of the stem apex. X40.
(following)
Stem apex and leaf primordia
Outlines of a series of transverse sections of the apical portion of the stem from a 4-months-old plant to show the development of the leaf primordia and young leaves. Sections (cut 15/ᵘ thick) are shown in serial sequence, A-F, incl. l, last formed or youngest leaf primordium; l₁, l₂, l₃, and l₄ are successively older primordia and leaves; sa, stem apex. The broken lines represent the lateral or lower limits of the primordia and leaves, and the dotted lines, the peripheral limits of the stem apex. X40.