PERIANTH
perianth, chlamys, floral envelope, perigone, perigonium
(noun) collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
Source: WordNet® 3.1
Etymology
Noun
perianth (plural perianths)
(botany) The sterile parts of a flower; collectively, the sepals and petals (or tepals).
(botany, bryology) The sterile, tubelike tissue that surrounds the female reproductive structure in a leafy liverwort.
Synonyms
• perigone
Anagrams
• Perthian, triphane
Source: Wiktionary
Per"i*anth, n. Etym: [Pref. peri- + Gr. périanthe.] (Bot.)
(a) The leaves of a flower generally, especially when the calyx and
corolla are not readily distinguished.
(b) A saclike involucre which incloses the young fruit in most
hepatic mosses. See Illust. of Hepatica.
Source: Webster’s Unabridged Dictionary 1913 Edition