| 释义 |
‖ vaginula Zool. and Bot.|vəˈdʒaɪnjʊlə|
Pl. vaginulæ.
[L. vāgīnula, dim. of vāgīna vagina.]
A little sheath or vagina; esp. in Bot. the capsule or theca enclosing the base of the seta in certain mosses.
a.1843Wilkinson tr. Swedenborg's Anim. Kingd. I. i. 18 The external..membrane of the mouth forms a number of pyramidal and globular pouches or vaginulæ.
b.1849Balfour Man. Bot. §1114 Urn-shaped pistillidia.., enclosed at first within a calyptra.., which is ultimately carried up with them.., leaving often a sheath (vaginula) round the bottom of the fruit-stalk. 1863M. J. Berkeley Brit. Mosses iii. 20 In Sphagnum the vaginula is lifted up on a cylindrical hyaline stalk. 1882Vines tr. Sachs's Bot. 360 The basal portion of the growing archegonium becomes swollen out and penetrates down into the tissue of the stem, being nourished and firmly enclosed by it (the vaginula). |