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.
(A) Paraffin cross section of O. glazioviana, (B) electron micrograph of O. glazioviana cross-section, (C) paraffin cross section of E. haichowensis, and (D) electron micrograph of a cross section of E. haichowensis.
