| Author: | Darwin, Charles, 1809-1882 |
| Subject: | QK, Plants -- Variation, Fertilization of plants, Heterostylism, Plant physiology, Pollination |
| Format: | Electronic text |
| Date issued: | 2003 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Different Forms of Flowers on Plants of the Same Species [electronic resource] / Charles Darwin |