7 Pages in Charles Darwin's Library associated with "flora - Ageratum"

The regions of vegetation, being an analysis of the distribution of vegetable forms over the surface of the globe in connection with climate and physical agents
By:
Publication info: London, G.J. Palmer, 1843
Pages: Page 36 Page 36 Page 119 Page 119
Sur la production et la fixation des variétés dans les plantes d'ornement
By: Verlot, J.-B. (Jean-Baptiste),
Publication info: Paris, J.B. Baillière, 1865
Pages: Page 34 End Slip 1 End Slip 1