| Rating | Solver | Clue |
|---|---|---|
| CALYX | Floral envelope | |
| ACALYSINOUS | Without a calyx, or outer floral envelope. | |
| ACHLAMYDEOUS | Naked; having no floral envelope, neither calyx nor corolla. | |
| MONOCHLAMYDEOUS | Having a single floral envelope, that is, a calyx without a corolla, or, possibly, in rare cases, a corolla without a calyx. |