| Clue | Source | Date |
|---|---|---|
| Source of pollen | Newsday | 09 Jul 2026 |
| Fungal feature | Wall Street Journal | 14 Jul 2018 |
| Fungal feature | ||
| Pollen source | New York Times | 10 Sep 2017 |
| Fern feature | Wall Street Journal | 21 Jun 2017 |
| Pollen source | ||
| Pollen source | Newsday | 15 Nov 2015 |
| Plant reproductive structure | LA Times Daily | 31 Jan 2015 |
| Pollen source | ||
| Plant reproductive structure | ||
| Organ containing a plant's reproductive cells | ||
| Moss's reproductive-cell container |