| 1 | Two lower calyx teeth much shorter than the upper tooth; mouth of the fruiting calyx closed by the upcurved lower lip |
| 1' | Two lower calyx teeth equalling or slightly longer than the upper tooth, the lower lip not upcurved, the mouth of the fruiting calyx remaining open. |
| 2 | Pedicels as long as the calyx, finally curved patent, almost transverse to the rachis |
| 2' | Pedicel shorter (or seemingly shorter) than the calyx, finally bent upright, appressed against the rachis. |
| 3 | Corolla 7-9 mm long, white or violet. Fruiting calyx 5-9 mm long |
| 3' | Corolla 5-6 mm long, white. Fruiting calyx 4-6 mm long |
