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Calyx sepals or lobes, number

Where the calyx and corolla are not clearly differentiated, use the corolla characters for the perianth.

This refers to the number of sepals, lobes or teeth in the calyx.

FL41 none

No sepals or sepal-like structures.

FL42 of one sepal or lobe

(Includes cup-shaped calyces without lobes)

FL43 of two sepals or lobes FL44 of three sepals or lobes
FL45 of four sepals or lobes FL46 of five sepals or lobes
FL47 of six or more sepals or lobes

FL48 fused to form an operculum