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.
Welwitschia mirabilis. (A–D) Optical paradermal sections of young stomata (DIC), showing successive developmental stages. Scale bars = 20 μm. GC, guard cell; GMC, guard mother cell; LSC, lateral subsidiary cell (numbered in sequence of formation); M, meristemoid.
