tepaln.
/ˈtɛpəl//ˈtiːpəl/ Botany.
A segment of a perianth which is not divided into a corolla and a calyx.
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the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > perianth
perianthium1806
perigonium1816
perianth1828
tepal1840
perigon1847
1840 B. Kingdon tr. A. P. de Candolle Veg. Organogr. II. ii. 90 It is well to retain for these doubtful cases of a single envelope a particular name... Following the analogy of the terms sepals and petals, I propose..the name of Tepals.
1866 J. Lindley & T. Moore Treasury Bot. Tepal, another name for petal. Also the pieces of a perianth, being of an ambiguous nature, between calyx and corolla.
1939 Rep. Bot. Soc. Brit. Isles XII. 120 It is proposed to refer to them [sc. the perianth segments of Rumex] as Inner and Outer Perianth Segments, or Tepals.
1951 G. H. M. Lawrence Taxon. Vascular Plants ii. 413 Perianth..generally undifferentiated into corolla and calyx, and when so the segments termed tepals.
1968 A. Cronquist Evol. & Classif. Flowering Plants iii. 87 The tepals of the more primitive angiosperm families are modified leaves.
1972 Jrnl. Royal Hort. Soc. 97 336 Because magnolia flowers usually have no distinction between petals and sepals the term tepal has been generally accepted for these floral parts.
This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2021).
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n.1840