Figure 4.
The same gametophyte pictured before and after freezing temperatures and drought: (A) fall growth, (B) under midwinter ice, (C) dehydration, and (D) spring growth.
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.