2 Pages in Charles Darwin's Library associated with "flora - Helianthus"

Éléments de tératologie végétale.
By: Moquin-Tandon, Alfred.
Publication info: Paris :P.-J. Loss,1841.
Pages: Page 167
Die Schutzeinrichtungen in der Entwickelung der Keimpflanze.
By: Haberlandt, Gottlieb.
Publication info: Wien :Carl Gerold's Sohn,1877.
Pages: Page 75