| 释义 |
sepal|ˈsɛpəl|
[ad. Fr. sépale, mod.L. sepalum (N. J. de Necker, Phytologie philosophique, 1790, p. 55, and Corollarium ad Philosophiam botanicam Linnæi, 1790, p. 18). Necker derives the word from Gr. σκέπη covering; as he refused to acknowledge the distinction between the calyx and the corolla (using the term perigynanda to comprise both), sépale (sepalum) in his use denotes the petals as well as what are now called ‘sepals’.]
1. Bot. Each of the divisions or leaves of the calyx of a flower.
[1821Gray Nat. Arrangem. Brit. Pl. I. 128 Sepales. Leaves, Sepala, Phylli, Folioli calycini. The distinct segments into which the calyx is divided.] 1829Lindley Synops. Brit. Flora 7 Order 1. Ranunculaceæ Juss. Sepals 3–6. 1832― Introd. Bot. i. ii. 114 The sepals are generally longer than the corolla in æstivation..: during flowering they are mostly shorter. 1840B. Kingdon tr. De Candolle's Veg. Organogr. II. iii. ii. 48 Of the Calyx or Sepals. 1879Lubbock Sci. Lect. i. 6 A common flower..consists, firstly of an outer envelope or calyx, sometimes tubular, sometimes consisting of separate leaves called sepals.
2. Comp. Anat. (See quot.)
1894Gould Illustr. Dict. Med. etc. s.v., In the anatomy of the lower animals, certain thin, leaf-like organs are also called sepals.
Hence ˈsepal(l)ed a., only in parasynthetic comb., as gamo-sepalled, two-sepalled, etc., having one sepal, two sepals, etc.
1821Gray Nat. Arrangem. Brit. Pl. I. 124 Calyx... Composition. Gamo-sepaled, one-leafed... Two-sepaled, two-leaved... Many-sepaled. 1838Barton & Castle Brit. Flora Med. II. 465 Sepalled, having sepals. 1864in Webster, and in later Dicts. |