involucel noun. [ɪn'vɒljʊsɛl] Also (earlier) in Latin form involucellum [ɪn,vɒljʊ'sɛlǝm], pl. -lla [-lǝ]. M18.
[mod. Latin involucellum dim. of INVOLUCRUM: cf. French involucelle.]
Botany. A whorl of bracts surrounding one of the divisions in an inflorescence, a partial or secondary involucre; spec. the epicalyx of one of the flowers in the capitulum of a scabious or allied plant.

■ involu'cellate adjective having an involucel or involucels E19.

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