| 1 | Ovary semi-inferior, hairy , styles 2. | |
| 2 | Saffron is the three stigmas and style of the crocus flower. | |
| 3 | Nut hairy at least with pulverulent minute hairs around base of styles. | |
| 4 | Leaves cordate at base, distal ones abaxially with a globose bulbil. Petaline spur ca . 1 mm. Persistent style ca . 2. 5 mm. | |
| 5 | In the commonest system, incompatible pollen tubes burst in the style. |