| 释义 |
sycon Bot.|ˈsaɪkɒn|
[a. Gr. σῦκον fig.]
†1. = syconium. Obs.
1845Encycl. Metrop. VII. 51/1 A sycon is a fleshy, concave receptacle surrounding the fruits.., which are numerous, small, and distinct. 1900B. D. Jackson Gloss. Bot. Terms 262/1 Sycon..a multiple hollow fruit, as that of the fig.
2. [Adopted as a generic name by A. Risso, Hist. Nat. Europe Méridionale (1826) V. 368.] A calcareous sponge of the genus of this name; also, a stage in the development of sponges in which flagellated chambers are developed and lined with choanocytes.
1882W. J. Sollas in P. M. Duncan Cassell's Nat. Hist. VI. 326 A transitional series of species can be shown to exist between a simple Ascon and a Sycon in which radiate buds have all united..to form a complex tubulated wall. 1912Phil. Trans. R. Soc. B. CCII. 170 The normal young Sycon has a beautiful double ascular crown of long monaxons. 1932Borradaile & Potts Invertebrata iii. 113 The three grades of sponge structure..are known as the ‘Ascon’, ‘Sycon’, and ‘Leucon’ grades. |