| 释义 |
‖ ascus Bot.|ˈæskəs|
Pl. -i.
[mod.L., a. Gr. ἀσκός bag, sac.]
A membranous tubular cell, esp. the swollen sac-like cell at the end of the branches of the hyphæ in certain fungi and lichens, in which the reproductive sporules or sporidia develop.
1830Lindley Nat. Syst. Bot. 332 These cases (thecæ) are..contained in other membranous cases (asci). 1875Bennett & Dyer Sachs' Bot. 240 With the development and escape of the spores the ascus disappears. |