Page:Makers of British botany.djvu/313

This page has been validated.

Plate XXIII

Root of Calamites (Astromyelon Williamsonis)
in transverse section

Drawn by Williamson

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Makers_of_British_botany.djvu/313&oldid=7860838"