Fig. 23.
Short-period movements of the leaf and petiole of C. Penzigii in continual darkness. Conventions which apply are the same as for Figs 2 and 3. Leaf movements redrawn from fig. 14 in Schmitz (1934).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.