| 释义 |
involucel Bot.|ɪnˈvɒljuːsɛl|
Formerly -ell.
[ad. mod.L. involūcellum, (also in Eng. use), dim. of involucrum. Cf. F. involucelle (Littré).]
A whorl of bracts surrounding one of the divisions in an inflorescence; a partial or secondary involucre.
(α) in L. form involucellum.
1765J. Lee Introd. Bot. Gloss., Involucellum, a partial Involucrum. 1776–96Withering Brit. Plants (ed. 3) II. 449 Umbel with 5 spokes..involucella egg-shaped. 1830Lindley Nat. Syst. Bot. 76 Apetalous dicotyledons, with..a calycine involucellum to the female or hermaphrodite flowers.
(β) In Eng. form involucel.
1804Med. Jrnl. XII. 368 Involucell, reaching half way round, three-leaved, bent downwards. 1806J. Galpine Brit. Bot. 145 Chærophyllum..Involucells reflexed, concave. 1870Hooker Stud. Flora 183 Scabiosa..calyx-tube contracted at the top, included in the tubular involucel. |