| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Ideen zu einer Physiognomik der Gewächse | Humboldt, Alexander von, 1769-1859 | de | Phytogeography; Plant ecology | 2007-09-24 | |||
| Die epiphytische Vegetation Amerikas | Schimper, Andreas Franz Wilhelm, 1856-1901 | de | Phytogeography; Plant ecology; Botany -- Tropics | 2007-12-02 |